New Experiment Proves How Proper Warm-up Boosts CrossFit Performance – See the Results

The guys at WOD Science just dropped a bombshell of a video on warm-ups. 

Forget everything you think you know about stretching and jogging in place. 

This video dives into the actual science of how your body transforms when you warm up – heart rate, muscle oxygenation, the whole nine yards. 

They ran a cool experiment on themselves and the results are eye-opening. If you want to level up your workouts, read on.

Experiment Setup and Initial Findings

This experiment aims to scientifically uncover why warming up is essential and how it physically prepares the body for strenuous activities. 

The selected routine for this investigation consists of a 6-minute AMRAP (As Many Reps As Possible) that includes Burpee box jump overs, 15 calories on the rowing machine, and 20m weighted lunges.

The experiment was conducted in two phases: the first without any warm-up and the second with a warm-up session.

 Initially, the participant dove straight into the workout after a brief introduction. 

The immediate engagement in high-intensity exercise was challenging, with noticeable discomfort and burning sensations during the initial round, highlighting the struggle in achieving an optimal performance level from a ‘cold start.’

Physiological Changes Observed

Using a heart rate monitor and a muscle oxygenation sensor, significant differences were observed between the trials. 

Initially, without a warm-up, the participant’s heart rate was slower to rise, indicating that the cardiovascular system was not prepared for sudden intense activity. 

Muscle oxygenation data also showed a delayed response, with a gradual decrease in oxygen levels in the muscles during the exercise, suggesting inefficient oxygen utilization.

The Impact of Warming Up on Performance

Contrastingly, the second trial with a warm-up showed improved performance. The participant’s heart rate quickly escalated to an optimal level, facilitating better blood and oxygen flow to the muscles. 

This was evident in the muscle oxygenation trends, which remained stable and even increased during the workout, indicating enhanced muscular efficiency and endurance.

How to Warm Up Effectively

Based on the experiment, an effective warm-up should include 3-5 minutes of intense full-body activities such as cycling or rowing to increase the heart rate. 

This should be followed by 10-15 minutes of dynamic stretching and movement-specific exercises to ensure all muscle groups are adequately prepared. 

Such a routine not only prepares the cardiovascular system but also activates the enzymes responsible for energy production, improving overall performance.

See the Full Video:

Conclusion: Summary of Findings and Takeaways

The experiment clearly demonstrates that warming up significantly enhances physical performance by preparing both the cardiovascular system and the muscles for high-intensity exercise. 

The increased heart rate and better oxygen supply to the muscles enable more efficient energy use and greater endurance. 

Therefore, incorporating a thorough warm-up before workouts is crucial for optimal performance and injury prevention, echoing the advice of fitness experts worldwide.


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