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Comparison of cardiorespiratory responses between treadmill and bicycle ergometer exercise
Yonghyun Kwon1, Ki Seok Nam1, Jong Sung Chang1
1Department of Physical Therapy, Yeungnam University College, Daegu, Korea.
The talk test (TT) effectively gauges aerobic exercise intensity by correlating speech comfort with physiological responses. This validated method is reliable across treadmill and bicycle exercises for guiding physical activity.
Area of Science:
- Exercise Physiology
- Cardiorespiratory Fitness
- Clinical Exercise Testing
Background:
- The talk test (TT) is a subjective measure for assessing aerobic exercise intensity.
- Validating the TT against objective physiological data is crucial for its clinical application.
Purpose of the Study:
- To validate the talk test (TT) by comparing it with physiological markers during cardiopulmonary exercise testing (CPX).
- To assess the TT's reliability across different exercise modalities (treadmill and bicycle).
Main Methods:
- Twenty-two healthy adults underwent CPX on a treadmill and bicycle.
- Exercise intensity was stratified into three stages using the TT.
- Physiological variables including heart rate, oxygen uptake, and ventilatory threshold were measured.
Main Results:
- All measured physiological variables showed significant linear increases across the three TT stages.
- No significant differences were found between treadmill and bicycle modalities.
- The TT demonstrated strong correlations with objective physiological measures.
Conclusions:
- The talk test is a valid and reliable tool for gauging aerobic exercise intensity.
- The TT's effectiveness is consistent across various exercise modalities, making it practical for clinical and rehabilitation settings.
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