Translation of Exercise Test Response to Training Intensity Using the Count Scale
Hao-Yan Wang1, Qing Miao2, Qiu-Fen Xu3
1Department of Respiratory Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing, China. haoyanw@ccmu.edu.cn.
The count scale number (CSN) effectively translates exercise test results into individualized training intensity for COPD patients. This simple method allows for safe and effective exercise guidance using dyspnea ratings.
Area of Science:
- Pulmonary Rehabilitation
- Cardiopulmonary Exercise Testing
- Respiratory Physiology
Background:
- Individualized exercise intensity prescription requires accurate exercise testing.
- Simple methods for translating exercise test responses into training intensity are needed.
- The count scale, including count scale number (CSN) and count scale time, was previously developed to rate dyspnea.
Purpose of the Study:
- To assess the utility of the CSN in translating exercise test responses to individualized training intensity.
- To determine if exercise guided by CSN alone can achieve a target heart rate response.
Main Methods:
- Twenty-eight COPD subjects underwent two exercise sessions.
- Session 1: Exercise guided by heart rate (HR1) with concurrent CSN measurement (CSN1).
- Session 2: Exercise guided by CSN, targeting CSN1, with concurrent HR measurement (HR2).
Main Results:
- No significant difference was found between HR1 (96 ± 11 bpm) and HR2 (97 ± 11 bpm).
- A high correlation (r = 0.932, P < .001) was observed between HR1 and HR2.
- Bland-Altman analysis showed good agreement between the two heart rate measures (-1.2 to 8.5 beats/min).
Conclusions:
- Exercise guided solely by the CSN can elicit a comparable heart rate response to heart rate-guided exercise.
- The CSN is a simple, practical tool for translating exercise test results into individualized training intensity for COPD patients.
- Utilizing the CSN as an intensity indicator promotes safe and effective patient exercise.
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