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A Randomized Crossover Trial on the Acute Cardiovascular Demands During Flywheel Exercise
Damir Zubac1,2, Vladimir Ivančev2, Zoran Valić3
1Science and Research Center Koper, Institute for Kinesiology Research, Koper, Slovenia.
Frontiers in Physiology
|July 12, 2021
Summary
Age did not influence the rise in mean arterial pressure (MAP) during vigorous flywheel exercise. Cardiovascular responses were significant across all loads, but the magnitude of MAP increase did not correlate with age.
Area of Science:
- Exercise Physiology
- Cardiovascular Research
- Aging Studies
Background:
- The cardiovascular system's response to exercise is crucial for overall health.
- Understanding how age affects blood pressure during intense physical activity is important for exercise prescription and safety.
- Flywheel exercise presents a unique resistance challenge that may elicit distinct physiological responses.
Purpose of the Study:
- To investigate the relationship between age and the mean arterial pressure (MAP) response during vigorous flywheel exercise.
- To test the hypothesis that older individuals exhibit a proportionally larger increase in MAP during flywheel exercise.
- To assess the cardiovascular burden imposed by varying loads of flywheel exercise across different age groups.
Main Methods:
- A randomized crossover trial involving 30 participants (20-55 years old) with varying sex distribution.
- Participants performed squat exercises on a flywheel ergometer at three different moments of inertia (0.025, 0.05, 0.075 kg m²).
- Continuous cardiovascular monitoring, including MAP, cardiac index, and heart rate, was performed using a Task Force monitor.
Main Results:
- Significant increases in MAP were observed across all flywheel loads compared to rest, peaking at 179 ± 4 mmHg with the highest load.
- Cardiac index doubled during exercise, and total peripheral resistance increased at the highest load.
- No correlation was found between the relative increase in MAP and participants' age for any of the tested flywheel loads.
Conclusions:
- Vigorous flywheel exercise significantly elevates mean arterial pressure and cardiac index, indicating a substantial cardiovascular challenge.
- The magnitude of the relative increase in mean arterial pressure during flywheel exercise is not influenced by age within the studied population.
- These findings suggest that age-independent cardiovascular adaptations occur in response to high-inertia flywheel exercise.
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