Earticle

초록

영어

The talk test (TT) is a subjective, self-administered method used to gauge aerobic exercise intensity based on a person’s ability to speak comfortably during physical activity. This study aimed to validate the TT by examining its relationship with physiological markers collected during cardiopulmonary exercise testing (CPX) on both a treadmill and stationary bicycle in healthy adults. Twenty-two healthy participants (17 males and 5 females), with no known musculoskeletal, cardiovascu-lar, or pulmonary conditions, completed two exercise sessions—one on a treadmill and another on a stationary bicycle. Each session was structured into three stages of increasing intensity based on the TT. During each stage, various psychophysiological and cardiorespiratory variables were measured, including heart rate, rating of perceived ex-ertion, metabolic equivalents, arterial oxygen saturation, respiratory rate, minute ventilation, oxygen uptake, carbon dioxide production, re-spiratory exchange ratio, and ventilatory threshold. Significant differ-ences were found across the three TT stages for all measured variables, with values increasing linearly as intensity progressed. However, no significant differences were observed between exercise modalities (treadmill vs. bicycle) or in the interaction between TT stages and mo-dality. The findings support the TT as a valid indicator of exercise inten-sity, correlating well with physiological responses measured during CPX. The consistency across both exercise modalities suggests that TT is a practical, effective tool for guiding aerobic exercise intensity, par-ticularly in clinical and rehabilitation settings.

목차

Abstract
INTRODUCTION
MATERIALS AND METHODS
Participants
Respiratory gas analysis
TT procedure
Statistical analysis
RESULTS
Participant demographics
Differences in physiological responses across TT stages and exercise modalities
Physiological changes from resting phase to TT stages
Correlation between TT stages and exercise intensity markers
DISCUSSION
CONFLICT OF INTEREST
ACKNOWLEDGMENTS
REFERENCES

키워드

저자

• Yonghyun Kwon [ Department of Physical Therapy, Yeungnam University College, Daegu, Korea ]
• Ki Seok Nam [ Department of Physical Therapy, Yeungnam University College, Daegu, Korea ]
• Jong Sung Chang [ Department of Physical Therapy, Yeungnam University College, Daegu, Korea ]
• Kyung Woo Kang [ Department of Physical Therapy, Yeungnam University College, Daegu, Korea ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  JER [Journal of Exercise Rehabilitation]

• 간기

  격월간

• pISSN

  2288-176X

• eISSN

  2288-1778

• 수록기간

  2013~2026

• 등재여부

  SCOPUS,KCI 등재

• 십진분류

  KDC 517 DDC 613