Smarter Cardio. Personalized to You.
Experience a smarter, more time-efficient approach to cardiovascular training with the CAROL Bike at CryoStrong Toronto.
Using AI-powered personalization and Reduced Exertion High-Intensity Interval Training (REHIT), CAROL automatically calculates and applies the resistance needed for your individual fitness level and performance.
Its signature workout takes just 5 minutes and includes only two 20-second maximum-intensity sprints—delivering a powerful cardiovascular training stimulus without the time commitment of traditional cardio.
WHAT YOU'LL NOTICE
Feel the Difference. Track Your Progress.
MORE ENERGY
Experience the energizing feeling that can follow a short, powerful cardiovascular workout.
IMPROVED CARDIO FITNESS
With consistent training, you may notice improvements in your cardiovascular capacity and overall conditioning.
BETTER ENDURANCE
As your cardiovascular fitness develops, everyday activities and workouts may begin to feel easier.
INCREASED POWER
See how your ability to generate power changes during CAROL's maximum-intensity sprints.
MEASURABLE PROGRESS
Track changes in your performance metrics over time and see your fitness progress ride by ride.
A WORKOUT THAT EVOLVES WITH YOU
As your performance improves, CAROL's AI adapts your resistance so your training continues to be personalized to you.
HOW DOES REHIT WORK?
5 Minutes. Two Sprints. One Smart Workout.
REHIT stands for Reduced Exertion High-Intensity Interval Training—a time-efficient approach to high-intensity exercise that uses very brief periods of maximum effort.
CAROL's AI calculates your personalized resistance and automatically applies it during your sprints, removing the guesswork of manually selecting resistance.
WARM UP
Begin with gentle cycling to prepare your body for your first sprint.
20-SECOND SPRINT
Give maximum effort while CAROL automatically applies your personalized resistance.
ACTIVE RECOVERY
Return to gentle cycling, allowing your body to recover before your second sprint.
20-SECOND SPRINT
Complete your second maximum-intensity effort with AI-controlled resistance.
COOL DOWN
Finish with gentle cycling to complete your 5-minute signature REHIT workout.
WHY VO₂ MAX MATTERS
Train for Today. Invest in Tomorrow.
VO₂ max measures the maximum amount of oxygen your body can use during intense exercise and is a widely used measure of cardiorespiratory fitness.
Better cardiorespiratory fitness supports endurance and physical performance, while higher levels of cardiorespiratory fitness have also been associated with better long-term health outcomes.
CAROL's REHIT training provides a highly time-efficient way to challenge your cardiovascular system and work toward improving your cardiorespiratory fitness.
YOUR PERSONALIZED REHIT TRAINING plan
Powered by AI. Personalized to You.
Whether your goal is:
- Improved cardiovascular fitness
- Increased VO₂ max
- Better endurance
- Greater power and performance
- Metabolic fitness
- Time-efficient exercise
- Supporting long-term health
CAROL's AI learns from your performance and automatically personalizes your resistance, creating a workout that adapts as your fitness progresses.