Does the Carol bike really work? CAROL REHIT Fitness Bike  review

Does the Carol bike really work? CAROL REHIT Fitness Bike review

CAROL is a stationary decreased exertion high-intensity interval coaching (REHIT) bike that may enhance your cardiovascular and cardiorespiratory health utilizing synthetic intelligence. What makes CAROL fitness bike distinctive is that its signature exercise is just 8 minutes and 40 seconds lengthy, together with two 20-second sprints.

Regardless of that brief exercise period, CAROL fitness bike gives the identical advantages as for much longer exercises, and research have confirmed that riding CAROL fitness bikethree times per week (for a total of 26 minutes of exercise) yields the following health benefits*:

  • Improved cardiorespiratory health by 12% as measured by VO2max.
  • Elevated HDL ldl cholesterol by 6%.
  • Decreased triglycerides by 10%.
  • Decreased blood stress by 5%.
  • Decreased blood sugar by 2%.

I’ve had the CAROL bike for over two years, and on this evaluation, I clarify how efficient the bike has been for enhancing my cardiovascular health and associated metrics.

To see what exercising with CAROL fitness bike seems to be like in motion, try a video  of considered one of my coaching periods.

CAROL is a decreased exertion high-intensity interval coaching (REHIT) bike that may enhance your cardiovascular and cardiorespiratory health utilizing synthetic intelligence.

What makes CAROL distinctive is that its signature exercise is just 8 minutes and 40 seconds lengthy but it surely gives the identical well being advantages as a 45-minute run.

HIIT vs. REHIT Coaching

Graphic for video review of the CAROL AI bike
Click on the picture above to observe the video model of this evaluation on YouTube, which includes a full 8 minute 40 second demo experience.

Excessive depth interval exercises (HIIT) have change into standard lately as a result of they’re an extremely efficient means to enhance your cardiovascular well being and health with comparatively little time funding.

Most HIIT exercises take lower than half-hour, and a few are a lot shorter than that. One of the standard HIIT exercises is the 7-Minute Workout, which, because the identify implies, takes solely seven minutes to finish.

One other standard sort of HIIT exercise is known as Tabata, which solely takes 4 minutes per spherical.

Whereas you are able to do high-intensity exercises with all completely different varieties of kit or with no tools in any respect — assume body weight workout routines (mountain climbers and leaping jacks) — some folks choose HIIT bike exercises to get their coronary heart price up and their blood flowing.

HIIT exercises on stationary bikes have the profit that you are able to do them just about any time and from the consolation of your own home, with out requiring a number of (storage) area for train tools.

Depth is what makes a HIIT session so efficient, but it surely’s additionally the rationale why many individuals don’t follow any such train routine. It’s no secret that HIIT requires a level of willpower and psychological toughness that not everybody brings to the desk.

If HIIT is excessive depth, REHIT is about most depth. And that’s what CAROL fitness bike gives — a brilliant excessive depth exercise delivered in an extremely brief period of time.

That’s why any such train is known as decreased exertion high-intensity interval coaching.

In our labs, we see insulin sensitivity enhance by 25-28% and health by 15% inside 6 weeks. The CAROL stationary bike reproduces these leads to the true world. The analysis programmed into CAROL is benefiting the general public, and that’s finally what this science is about.

Dr. Niels Vollaard

That’s one of many the reason why I like CAROL fitness bike: every exercise session lasts solely eight minutes and 40 seconds, together with warmup, restoration and cooldown. In different phrases, you must exert your self for less than 40 seconds per experience (two 20-second sprints), paired with eight minutes of informal bike using. Anybody can do this, no matter their degree of health!



  • Minimal time funding.
  • Scientifically-proven advantages.
  • ISO licensed for probably the most correct commercial-grade ergometer.
  • CAROL dynamically adapts to your progress, so that you by no means plateau.


  • Preliminary funding.
  • Web connection required.

So what’s CAROL fitness bike?

CAROL has been round for some time, but it surely was known as Excessive Octane Journey. The concept behind CAROL is to take high-intensity interval coaching to the following degree.

CAROL stands for Automotive diovascular Optimization Logic, which is an AI-powered bike ergometer that the corporate says gives double the well being and health positive aspects of conventional average depth train in 20% of the time.

The CAROL Bike makes use of a commercial-grade metal body.

Based mostly on one of many research involving CAROL fitness bike, scientists concluded that the bike could make you 132% fitter with considerably much less time funding.

That 132% determine is predicated on a METS Z-score, which is a mixed rating of assorted well being markers that’s usually utilized in medical research. In a single research, CAROL users’ METS Z-score was 132% better than non-users at comparable health ranges.

The “much less time” declare is predicated on the decreased time it takes to finish a exercise on the bike: simply eight minutes and 40 seconds per day, three days per week, versus jogging for 30-45 minutes 5 occasions per week.

The aim of CAROL’s REHIT protocol is to quickly empty the glycogen shops in your thigh muscle tissues by two 20-second sprints at super-high depth.

Scientists name this methodology reduced-exertion high-intensity interval coaching, or REHIT, as a result of your perceived exertion is decrease than what you expertise throughout conventional HIIT exercises. That makes sticking with REHIT simpler than different forms of workout routines.

How Does the CAROL fitness bike Work?

CAROL’s signature exercise program contains two most depth 20-second sprints that shock your physique right into a fight-or-flight response and enhance your physique’s vitality calls for by 10,000% as in comparison with your resting baseline.

This response causes your muscle tissue to launch glycogen — the storage mechanism of glucose (sugar) — to satisfy your physique’s anticipated vitality calls for. As your physique quickly depletes 25-30% of its muscle glycogen reserves, it prompts metabolic pathways, together with AMP-activated protein kinase (AMPk) and Pparg coactivator 1 alpha (PGC-1a) that inform your physique to change into fitter and stronger.

REHIT causes a big degree of glycogen depletion in a short time in comparison with conventional train. You’d must run for 30-45 minutes to realize the identical degree of glycogen depletion by operating.

On a mobile degree, these pathways trigger mitochondrial biogenesis. In different phrases, your physique develops extra mitochondrial mass, thus growing its potential to make vitality. That’s what makes you stronger and fitter!

CAROL fitness bike additionally has vital benefits over conventional forms of exercises so far as calorie burn is anxious. That’s as a result of the second dash on CAROL methods your nervous system into pondering that there may be one other dash coming.

In consequence, your sympathetic nervous system and the associated metabolic pathways stay up-regulated for a couple of extra hours, resulting in what’s known as an “afterburn impact.” In different phrases, you actively maintain burning further energy even after finishing the bike exercise.

It’s price noting that CAROL fitness bike makes use of synthetic intelligence to personalize your exercises primarily based in your physiology and skill. Consider the bike as your private coach, or as an unique indoor biking studio that provides you a difficult cardio exercise.

Through the preliminary setup of your exercise profile, the CAROL fitness bike asks you for private data, together with your age, weight and peak. Based mostly on these biometrics, 50 years of empirical proof across the REHIT methodology, and biometric knowledge from onboard sensors, CAROL always assesses your efficiency and makes steady changes utilizing 1,000 resistance settings.

In different phrases, each time you mount the bike, you get a personalised exercise that improves your well being and health. The CAROL bike additionally dynamically adjusts the resistance degree of the flywheel in the course of the experience (primarily based in your energy enter and knowledge from earlier rides) to make the sprints as efficient as doable.

What units CAROL fitness bike other than different ergometers is that the bike can replicate precise lab protocols in the true world, similar to those utilized in a recently published study on the benefits of REHIT.

Dr. Niels Vollaard, a lecturer in well being and train scientist on the School of Well being Sciences and Sport, stated:

CAROL is the one system that precisely replicates my analysis exterior of the labs. This scientific train can’t be completed on a daily bike due to the supra-maximal resistance required that additionally must be tailor-made to every individual’s physiology.

Dr. Niels Vollaard

In consequence, exercising on this bike for lower than 9 minutes a day, 3 times per week, is simpler than going for a 30-minute run 5 occasions per week.

CAROL vs. Jogging

To offer you an concept of how efficient biking on CAROL fitness bike is in comparison with jogging, under are some numbers from a research that was revealed in February 2019, within the International Journal of Environmental Research and Public Health.

The figures proven point out how a lot better CAROL fitness bike customers’ scores and enhancements have been when in comparison with these of the joggers within the research:

  • Threat of creating a metabolic illness: 62% higher.
  • Cardiovascular health: 78% higher.
  • HDL ldl cholesterol: 71% higher.
  • Triglycerides: 78% higher
  • Blood stress: 196% higher.
  • Blood sugar: 48% higher.

In one other research from 2011 scientists concluded that REHIT increased insulin sensitivity in male study participants by 28%, which lowers the danger of creating Sort 2 diabetes.

I used to observe a ketogenic paleo diet earlier than adopting a predominantly animal-based diet, and I do CrossFit 4 or 5 occasions per week. In consequence, my bloodwork is already within the ultimate vary and I’ve no worry of creating Sort 2 diabetes or different lifestyle-related ailments.

Nonetheless, my measurable aim with CAROL fitness bike is to enhance my most energy — expressed in watts — and my octane rating. The octane rating is CAROL’s proprietary measure of energy output on the bike in relation to your heartbeat, and you’ll correlate that to your VO2max.

VO₂ max is the utmost price of oxygen consumption measured throughout incremental train; that’s, train of accelerating depth. The identify is derived from three abbreviations: “V” for quantity, “O₂” for oxygen, and “max” for max.


Whereas octane rating and VO2max aren’t precisely the identical, they enhance in a similar way.

For reference, my Octane has improved from 37.8 to 48.5 (a 28% enchancment) since my first CAROL experience.

Exercises/Coaching Modes

The brand new CAROL fitness bike app makes it simple to see your progress.

CAROL fitness bike gives the next seven exercise modes you’ll be able to select from, together with a free experience mode.

  • Intense
  • Energizer
  • Fats Burn 30
  • Fats Burn 60
  • Fixed Energy
  • Steady Ramp Up
  • Free Journey (together with assist for Peloton exercises and Apple Health+)

Intense is the first program and the one I take advantage of most frequently. It consists of two 20-second sprints, plus a two-minute warmup, a three-minute restoration, and a three-minute cooldown. So, my complete time funding is eight minutes and 40 seconds for every indoor biking exercise.

CAROL recommends that you just work out 3 times per week if you wish to enhance your efficiency, well being and health. To keep up your health degree (slightly than enhance it), you’ll be able to cut back your exercises to 2 per week.

Given how usually I do CrossFit, I don’t all the time get to work out 3 times every week on CAROL. It’s not a difficulty of discovering the time, however slightly of giving my legs sufficient relaxation to get well. We’ll see how that method impacts my octane rating in the long term. For now, I feel that my CrossFit coaching greater than compensates for the missed biking periods.

As you’ll be able to see within the picture above, the 2 20-second sprints set off a cascade of chemical reactions in your physique that end result within the creation of latest mitochondria (your cells’ energy crops). Through the first 10 seconds of the primary dash, your physique’s vitality calls for enhance dramatically, inflicting the depletion of glycogen shops. Through the second half of the primary dash, AMPk and PCG-1a get launched.

Through the second dash, these signaling molecules get activated in response to the stress, prompting your physique to adapt and get fitter.

Energizer is a shortened model of Intense that consists of two 10-second sprints. I select Energizer after I don’t really feel like “killing” myself, or on days after I really feel sore and I already labored out (CrossFit).

Fats Burn 30 and Fats Burn 60 are each glorious exercises in case your health objectives embrace burning fats and/or reducing weight. These two exercises encompass a two-minute warmup, 30 or 60 eight-second sprints with 12 seconds relaxation in between every, and a three-minute cooldown.

I’ve completed a couple of of those rides they usually’re completely brutal — however efficient, if burning fats and energy are your main aim.


In Fixed Energy mode, CAROL fitness bike will regulate the resistance routinely to keep up the chosen energy.


Steady Ramp Up is a testing protocol that you need to use to measure your VO2max. Through the check, CAROL will enhance the resistance by three watts each three seconds till you fatigue.

Free Journey, because the identify implies, lets you use the bike like a conventional ergometer. You’ll be able to freely set the resistance and different parameters and experience for so long as you want. In case you have a Peloton membership, you need to use this mode to take part in conventional Peloton group exercises.

You may as well use the Free Journey mode to take part in Apple Health+ periods.


CAROL  fitness bike Hardware and Setup

CAROL fitness bike

CAROL comes with a snug and adjustable seat, but it surely may also be changed with a motorbike seat of your alternative.

CAROL bikes are shipped from considered one of two warehouses — relying on whether or not you reside close to the east coast or the west coast — by way of a parcel service and arrive inside 5-10 enterprise days. I acquired my bike wrapped in a big cardboard field.

CAROL includes a commercial-grade stainless-steel body and a heavy flywheel. The load is critical for stability causes. The excellent news is that assembling CAROL often takes lower than half-hour. I put my bike collectively within the storage after which wheeled it into my workplace.

As soon as I had discovered a great place for my bike, I made certain it was even by manipulating the 4 adjustment knobs on the underside of the body.

I’ve hardwood flooring in my workplace and was afraid my sweat would possibly injury it; then I remembered that utilizing CAROL doesn’t make you sweat (until you do the fats loss routines or use the bike at no cost using to construct up endurance).

If that’s the case, you would possibly wish to cowl your ground with a towel and rubber mat. The corporate additionally sells a particular ground mat that appears just like a conventional yoga mat you need to use.

Software program and App


While you first energy up the bike, you’ll in all probability discover that CAROL’s software program is simply an app operating on an Android-powered pill. That makes utilizing and interacting with the CAROL app easy, until you’ve by no means used a smartphone or pill earlier than.

Earlier than you can begin your first bike experience, you must create a CAROL rider account. You’ll be able to later entry this account by way of net or the smartphone app.

In case you have fewer than 5 riders in your family, I like to recommend utilizing a strong password to guard your CAROL account and storing it in a password supervisor, similar to 1Password*. The rationale why I like to recommend utilizing a randomly-generated password is as a result of the CAROL app lets you remained signed into the bike with out having to enter your password each time you wish to experience the bike.

Nonetheless, in case you have greater than 5 riders in your family or should you use CAROL in a business setting, I like to recommend choosing a robust password that’s simple to sort as a result of the bike can’t keep in mind greater than eight accounts at a time.

Competing With Others

Each time you end a exercise on CAROL, it can save you the experience and see the way you examine to each different CAROL consumer worldwide on a weekly leaderboard.

Video: Bryan vs. Michael Compete on CAROL

Video: Bryan and Michael compete on CAROL!

I get pleasure from having this group connection and assume it makes for a enjoyable exercise. As a substitute of simply competing towards my private greatest efficiency (which might change into tedious for even probably the most devoted riders), it’s enjoyable to basically play an ongoing health recreation towards different nice athletes.

Using With CAROL

Using with CAROL is fairly easy should you observe the on-screen directions for the exercise you select.

Earlier than beginning a exercise, you’ll be able to decide music or spoken directions (this varies relying on the kind of exercise). The audio system which can be constructed into CAROL’s display screen are highly effective sufficient should you’re in a quiet setting, however you would possibly wish to use headphones should you’re in a fitness center setting or a loud setting.

When you’ve accomplished the exercise, you’ll see your rating and a sign of whether or not you’ve improved upon your earlier scores. CAROL additionally asks you the way you’re feeling after the exercise, and should you’d like to save lots of your rating or discard it.

How A lot Is CAROL?

For shoppers, CAROL prices $2,395 plus a $12 month-to-month subscription payment per family. Company customers (similar to gyms) additionally pay $2,395, however they’re required to buy extra licenses for his or her end-users.

If you wish to give CAROL a strive, you need to use low cost code ‘NEWYOU2022’ to get $250 off the acquisition value.

Moreover, CAROL gives numerous bundles that include equipment, similar to a chest strap, pill holder, ground mat, bottle holder and an prolonged guarantee.

Tricks to Enhance Your CAROL Rating

In addition to enhancing your conditioning by understanding on CAROL not less than 3 times per week, there are a few methods you need to use to get the absolute best rating.

  1. Ensure that the bike seat and handlebar are adjusted correctly to your peak.
  2. Use biking footwear.
  3. Wait till the tip of the three-second countdown earlier than going all-in.

One of the necessary components in biking effectively is a correctly adjusted seat and handlebar. When you sit too excessive or too low, you gained’t be capable to switch energy out of your legs to the bike as effectively. So, be sure to regulate the bike in keeping with the handbook and your peak.

I’ve additionally observed that the pedal straps are inclined to loosen over time. That’s simply due to the pressure utilized while you’re peddling at full pace. For greatest outcomes, I like to recommend getting a pair of biking footwear you can connect firmly to every pedal.

That stated, I nonetheless bike with my tennis footwear as a result of I don’t care if I lose a couple of watts.

Final however not least, I like to recommend holding off on going all-in when the display screen turns purple and the three-second countdown begins. Why? As a result of I’ve observed that I attain peak pace and depth even earlier than the 20-second exercise begins.

In different phrases, when the precise exercise begins, my efficiency is already declining. So, I often wait till one second earlier than the exercise begins.

CAROL vs. Different HIIT Bike Exercises


So how is CAROL completely different from different HIIT bike exercises, similar to spin lessons?

The first distinction between common HIIT exercises or spin lessons and CAROL is the latter’s potential to quickly empty the glycogen reserves in your thigh muscle tissues. That’s what makes the bike so efficient for growing your cardio capability.

CAROL can do this due to the way it makes use of science, know-how and synthetic intelligence. In different phrases, CAROL can personalize every exercise primarily based in your bodily talents on the time of that individual exercise.

In consequence, CAROL can enhance your cardiovascular conditioning with solely 40 seconds of intense work. No different exercise, that I do know of, can do this.

Technically, CAROL outperforms different HIIT bikes due to the way in which the bike routinely adjusts the resistance of the flywheel with out requiring any consumer intervention. For instance, each dash begins with no resistance in any way, forcing you to hawk as quick because the muscle tissues in your legs can twitch.

After a couple of seconds of high-speed peddling, the bike dynamically adjusts the resistance to make the dash more durable as you fatigue.

Based mostly in your energy enter over time, the bike adjusts the resistance settings for the following dash with the aim of attaining most glycogen depletion. Until you will have a pc controlling the bike’s resistance, you can’t replicate this protocol.

CAROL vs. Spinning

Earlier than changing into a CrossFitter, I attempted numerous forms of workout routines, together with spinning. From a purely bodily perspective, I get pleasure from coaching on a stationary bike. Spinning was robust, however I burned a number of energy doing it and the group setting motivated me to push even more durable.

The draw back of spinning is that it’s monotonous. After some time, I acquired bored and stopped doing it.

And one other drawback of spinning is that it takes not less than an hour — and much more should you add the time required to journey to the fitness center and again. When you plan on utilizing a spin bike at residence, you actually should be self-motivated and disciplined.

Improvements just like the Peloton bike have tried to supply options to those issues by introducing linked bikes that can help you work out from the consolation of your own home whereas nonetheless interacting with and competing towards a group of riders.

Whereas I feel that’s an ideal concept, you continue to should commit a big period of time for the exercises to be efficient.

In distinction, CAROL requires just a few minutes of your time. And when you can’t compete with different riders dwell (the rides you are taking with CAROL are just too brief for that), you’ll be able to examine your self to others by way of CAROL’s International Leaderboard.

CAROL vs. Peloton Bike+ vs. NordicTrack s22i

I’ve had many readers ask in regards to the variations between CAROL and the Peloton Bike+ and NordicTrack s22i. Whereas you will get a superb exercise on both of those bikes, there are some necessary variations you need to have in mind.

Probably the most placing distinction between CAROL and another spinning or train bike is the period of the exercise. Neither Peloton nor NordicTrack provide REHIT protocols which have been proven in peer-reviewed research to offer the identical advantages as for much longer exercises.

In different phrases, if you wish to obtain the identical cardiovascular and metabolic enhancements on a Peloton or NordicTrack bike, you must work out extra often and longer.

Right here’s a side-by-side comparability of the several types of exercise every of those platforms gives:

 CAROLPeloton Bike+NordicTrack s22i
Stay streaming health lessonsSureSureSure
Stay streaming gaming/racing content materialComing quicklyNoNo
Reasonable-intensity steady coaching (MICT)SureSureSure
Decreased exertion excessive depth coaching (REHIT)SureNoNo
Comparability of exercises accessible on these three platforms.

What’s necessary is that with a view to take part in dwell streaming health lessons with CAROL, you want a separate membership, similar to Apple Health+, Peloton Digital or comparable, as a result of it’s not included in CAROL’s month-to-month membership.

{Hardware} and Software program Comparability

In addition to the exercises, there are additionally variations within the {hardware} and software program between these three platforms (as you’ll be able to see within the comparability desk under).

 CAROLPeloton Bike+NordicTrack s22i
EN ISO 20957 certificationClass SA: skilled and business useClass H: home useClass H: home use
Silent belt driveSureSureSure
Frictionless magnetic brakeSureSureSure
Motorized brake systemSureSureSure
Freewheel security clutchSureNoNo
Biking footwear non-obligatorySureNoNo
Hand coronary heart price monitorSureNoNo
Touchscreen monitorSureSureSure
{Hardware} variations.

As you’ll be able to see, solely CAROL includes a commercial-grade body that may stand up to abuse and can possible final a lifetime.

The opposite good thing about CAROL is you can experience it with or with out biking footwear. I’ve used tennis footwear for the previous few years as a result of I didn’t wish to spend money on biking footwear simply squeeze a couple of further watts out of every experience. After all, CAROL’s pedals are totally suitable with biking footwear and cleats. Particularly, CAROL helps the Shimano mountain bike SPD system.

The one draw back of CAROL is the touchscreen, which is comparatively small compared to that of the Peloton or NordicTrack bikes. Nonetheless, take into account that CAROL’s signature exercise takes lower than 9 minutes to finish. Realistically, there isn’t almost sufficient time (between the sprints) to observe a present or work together with the touchscreen in any significant means.

In different phrases, until you wish to use CAROL for conventional spinning exercises, you gained’t miss the bigger display screen in any respect.

From a software program perspective, it’s price noting that CAROL repeatedly personalizes and optimizes every exercise primarily based in your earlier efficiency and your present health degree. Moreover, CAROL has security algorithms inbuilt to routinely cease the experience if it detects that your coronary heart price goes up too excessive (in comparison with your baseline).

Neither Peloton nor NordicTrack provide these two necessary options.

How A lot Is CAROL in Comparability to Peleton and NordicTrack?

From a pricing perspective, CAROL is correct within the center between Peloton and NordicTrack however gives a less-expensive month-to-month membership.

 CAROLPeloton Bike+NordicTrack s22i
Preliminary buy value$2,395.00$2,495.00$1,999.00
TransportFree (UK and U.S. solely)FreeFree
Month-to-month membership$12.00$39.00$39.00
Pricing comparability.

The pricing above is for patrons in the US and CAROL’s free transport provide solely applies to clients within the UK and within the U.S. (excluding Alaska and Hawaii).

All three manufacturers provide interest-free financing.

Who Ought to Use CAROL?


I’d argue that CAROL is an efficient match for anybody who needs to enhance their health and well being with out having to spend numerous hours within the fitness center. In reality, it doesn’t matter what your present health degree is, as a result of the bike adjusts to your bodily talents.

This indoor bike can be a superb possibility for many who have had a tough time sticking to an train routine. Furthermore, CAROL is especially helpful for many who have a demanding job or household life that leaves little time for understanding.

CAROL can be nice for critical athletes who search methods to enhance their main exercise routine and enhance their cardiovascular energy and capability.

I do CrossFit a number of occasions every week, however I additionally get pleasure from utilizing CAROL on the times after I don’t have time to go to the fitness center. Moreover, I take advantage of CAROL to enhance my octane rating and VO2max, which helps me on these WODs that target metabolic conditioning (metcon).

Paired with low-heart-rate exercises, I’ve observed that my exercise efficiency and endurance throughout metcon workout routines has dramatically improved.

Technical Tidbits

CAROL’s touchscreen is an Acer pill operating the Android working system. Meaning CAROL’s software program is solely an Android app that communicates with the bike’s sensors.

Contemplating that we’re an all-Apple family, CAROL is the primary (and doubtless final) Android system in our residence.

Since I don’t essentially belief Android (or any of the bloatware that may run on it), I quarantined the bike by itself VLAN in order that it doesn’t have direct entry to any of the opposite gadgets which can be linked to my residence community.

Incessantly Requested Questions

What’s high-intensity interval coaching (HIIT)?

When you stumbled throughout this text, likelihood is that you just already know what HIIT means. For these of you who don’t, let me quote Wikipedia:

“Excessive-intensity interval coaching (HIIT), additionally known as high-intensity intermittent train (HIIE) or dash interval coaching (SIT), is a type of interval coaching, a cardiovascular train technique alternating brief durations of intense anaerobic train with much less intense restoration durations, till too exhausted to proceed.”

One of the well-known HIIT exercises is Tabata. Throughout Tabata, you carry out an train, similar to pushups, at excessive depth for 20 seconds earlier than resting for 10 seconds. Then you definately repeat that cycle for eight rounds.

When you did the mathematics proper, you’ll understand that one spherical of Tabata takes solely 4 minutes to finish. When you repeated that train on the correct depth — for a complete of eight minutes — you have to be on the bottom attempting to catch your breath.

What are the advantages of HIIT?

Whereas high-intensity interval coaching is comparatively new, there are a number of scientific research that present the advantages of such cardiovascular train methods, together with improved athletic capacity and condition, improved glucose metabolism, lower insulin resistance, a reduction of fat and weight loss, improved brain power and cognitive function, a decreased risk of developing cardiovascular disease, and an increased VO2 max (maximal aerobic capacity).

From a sensible perspective, HIIT periods usually have a period of half-hour or much less. That makes them enticing alternate options for busy individuals who don’t have time to go for a long term or spend two hours within the fitness center.

The mixture of brief period and excessive effectiveness is why the 7-Minute Exercise turned so standard a couple of years in the past. In reality, earlier than I began CrossFit, I included P90X and the 7-Minute Exercise as a part of my health routine.

What are the drawbacks of HIIT?

The draw back of HIIT is what makes it so efficient: its depth. HIIT often requires a excessive degree of motivation to push by these high-intensity intervals, and many individuals don’t have the willpower for it.

In consequence, some folks quit early and abandon HIIT, or they carry out the workout routines with much less depth, which considerably reduces the exercise’s effectiveness.

That’s why I used to be so excited after I stumbled throughout CAROL, which successfully reduces the exercise to 2 20-second bursts. Everybody can push it for 20 seconds, even should you don’t have the strongest willpower when it comes health.

What are different forms of conventional HIIT applications?

There are quite a few forms of HIIT regimens that differ principally in size, sort of train and depth. Nonetheless, primarily based on a study from 2016, there wasn’t a big distinction in consequence and advantages between them.

Listed here are a couple of standard HIIT regimens that you just may need heard about (every of which carries the identify of its respective inventor): Peter Coe regimen, Tabata regimen, Gibala regimen, Zuniga regimen and Vollaard regimen.

I gained’t go into the small print of those HIIT exercises, however should you’d wish to study extra, simply click on on the respective hyperlinks above.

How tough is it to assemble CAROL?

I’m not probably the most gifted handyman, but it surely took me lower than half-hour to assemble my CAROL bike. All of the directions are fairly easy and simple the observe, with one exception: I didn’t know easy methods to connect the straps to the pedals, as a result of the toe cage meeting wasn’t correctly documented and I had by no means used them earlier than.

The picture under reveals how I’ve them now.

Can I take advantage of my very own seat or pedals with CAROL?

Sure, you’ll be able to! The CAROL bike makes use of commonplace bike elements. In consequence, you need to use your individual seat and pedals, should you choose (and if doing so makes the exercise extra snug).

The place are you able to strive CAROL?

CAROL has a couple of showrooms within the U.S. and throughout Europe the place you’ll be able to check out the bike. I attempted the bike on the Paleo f(x) show in Austin, Texas, and acquired hooked on the platform.

When you’re a fitness center or enterprise proprietor, you may additionally take into account providing CAROL to your clients and workers. CAROL is especially well-suited for workplace environments as a result of workers can full a exercise over lunch in enterprise apparel with out breaking a sweat.

Can I take advantage of this stationary train bike to drop a few pounds?

You completely can! CAROL has two exercise routines particularly designed for fats loss. In free experience mode, CAROL even tracks energy burned. Nonetheless, should you eat nicely and train commonly, there’s no must rely energy.

Is CAROL higher than a recumbent train bike?

From a well being and health perspective, a recumbent train bike is principally the identical as a conventional bike ergometer. Based mostly on every thing I do know, I’d say CAROL outperforms recumbent train bikes (which focus solely on resistance coaching, and never on depth coaching) on each degree.

How does such a brief exercise do something?

It’s the precept of high quality over amount. CAROL’s exercises do basically the identical factor as an extended exercise; they simply get your physique to the outcomes you’re searching for extra effectively. What you must understand is that usually, you’re not really in your goal health zone over the period of your exercise. When you run for half-hour, solely a portion of that’s really “productive” from an train science standpoint.

Extra particularly, CAROL makes use of know-how and deep studying to present you simply the proper ranges of resistance at simply the proper moments primarily based in your explicit health degree, which rapidly burns by your glycogen shops (particularly in your thighs). This helps you burn fats (spurring weight reduction) and construct muscle.

Can you utilize CAROL with out an web connection?

When you want an web connection to enroll in an account, you need to use the bike in offline mode. Nonetheless, the bike wasn’t essentially designed to stay offline completely. Whereas your offline rides are cached on the bike, they get uploaded for evaluation when the bike reestablishes a reference to the web.

What occurs to the bike if the corporate behind CAROL goes bankrupt?

Within the unlikely occasion that the corporate that makes CAROL goes stomach up, you’ll be able to proceed utilizing the bike as a daily spinning bike. Particularly, you need to use the “Free Journey” mode and manually regulate the resistance, time and different parameters.

How is CAROL completely different from an Assault bike?

When you do CrossFit, you’re in all probability accustomed to Assault bikes — the least favourite piece of kit for a lot of CrossFitters. That’s as a result of using an Assault bike is hard and exhausting.

So that you may be questioning should you couldn’t merely replicate CAROL’s REHIT exercises on such a motorbike, contemplating that it prices lower than CAROL.

The factor with Assault and comparable bikes is that their resistance goes up in a linear sample as you enhance your vitality enter. That’s a wholly completely different idea than what CAROL gives, which always adjusts the resistance primarily based on its sensor knowledge and your bodily talents.

In consequence, you gained’t get the identical advantages (primarily based on the identical time funding) from conventional air bikes as you’ll from CAROL.

What’s CAROL’s Q Issue?

The Q issue of a bicycle is the space between the pedal attachment factors on the crank arms when measured parallel to the backside bracket axle. CAROL’s Q Issue is 165 mm or 6.5 inches.

Can I take advantage of CAROL to arrange for a triathlon or marathon?

Whereas CAROL can actually assist your coaching efforts by enhancing your cardiovascular health (VO2max), it’s not meant to interchange your coaching routines. For instance, you could apply operating to change into a extra environment friendly and higher runner.

Getting higher in any sport requires technical abilities you could apply, and swimming, operating or using a motorbike for hours are such abilities. However relaxation assured, together with CAROL in your coaching routine will enhance your total health and make it simpler to maintain your goal speeds in races.

Does the CAROL bike assist third-party coronary heart price displays?

Sure, you need to use your individual chest strap with the CAROL bike. When you don’t have one, the handlebar of the bike includes a built-in HRM that’s pretty correct, primarily based on my expertise.

Can I take advantage of CAROL to take part in Peloton group lessons?

Sure, you need to use CAROL together with Peloton Digital!

Close to the tip of 2022, CAROL introduced compatibility with the Peloton Digital platform. Meaning you need to use the bike not just for its personal high-intensity exercises, but additionally for the extra conventional lessons (i.e., longer rides) supplied by Peloton.

With a view to leverage this compatibility, you want a paid subscription to Peloton Digital.

Can I take advantage of CAROL together with Apple Health+?

Sure, you need to use the Free Journey possibility of CAROL to take part in Apple Health+ lessons. Nonetheless, you want a separate Apple Health+ subscription as a result of it’s not included along with your CAROL membership.

CAROL Overview Abstract

I was knowledgeable sprinter and leveraged HIIT exercises to remain match after I ended my profession (and earlier than beginning CrossFit).

One of many the reason why I like CrossFit a lot is as a result of it gives a wide range of workout routines that assist me enhance my bodily health, together with weight coaching, circuit coaching, cardio workout routines and extra.

That’s why I wouldn’t take into account CAROL — or another piece of cardio tools — a substitute for energy coaching or CrossFit. Nonetheless, I feel CAROL completely enhances my present train routine. Greater than that, CAROL helps me to be a greater CrossFit athlete by enhancing my VO2max and cardio capability.

However you don’t should be a CrossFitter to learn from CAROL. In reality, no matter what sport you do, you’ll be able to considerably and simply enhance your efficiency with this REHIT bike.

When you don’t train in any respect but, then what are you ready for? Give CAROL fitness bike a try to get in your path in the direction of higher well being! In reality, the corporate gives a risk-free 100-day trial interval. When you’re not pleased with the bike for any cause inside that interval, you’ll be able to return it for a full refund. (They’ll even pay for the return transport to ship it again.)

Have you ever tried CAROL fitness bike or different HIIT exercises earlier than? If that’s the case, let me learn about your expertise, and whether or not it helped you obtain your health objectives, by leaving a remark under!

5/5 (1 Review)

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