Evaluation of physical fitness and estimation of daily spent calorie of the disabled inpatient by exercise testing system and heart rate monitor (Pulse Watch)

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Cardiorespiratory responses to the exercise testing system were examined in 61 healthy volunteers and 359 disabled inpatients (incomplete hemiplegia, paraplegia and tetraplegia). In addition, using these data and a personal computer, we tried to make a program for calculating the oxygen uptake (VO_2) and spent Calorie from the data of heart rate monitor (Pulse Watch). The following results were obtained: 1) The correlation coefficients between VO_2 and heart rate (HR) or load of healthy subjects by the bicycle ergometer, arm ergometer and treadmill were respectively higher than 0.90. 2) The peak VO_2, peak oxygen uptake/body weight (peak VO_2/W) and peak HR of patients were significantly lower than those of healthy subjects. 3) When the expected peak values were calculated according to Wasserman's protocol, the peak VO_2/W and peak HR of patients were also significantly lower than those of the expected. 4) The anaerobic threshold (AT) points of patients could be determined in approximate 76% of cases. The VO_2 and VO_2/W at the AT point were significantly lower. 5) The spent Calorie during the daytime of male thoracic or lumbar injury patients (mean ± SD age of 29 ± 3 years ) analyzed from the data of Pulse Watch was 2.71 Cal/min. on the average and the correlation coefficient between VO_2 and HR was 0.96 ± 0.01, although the former was significantly lower (1.78 Cal/min. on the average) and the latter was 0.82 ± 0.06 in male cervical injury patients (mean±SD age of 28±4 years ). These results suggest that the physical fitness is diminished in disabled inpatients, and that the attempts to improve it might be necessary in the rehabilitation program. And also, Pulse Watch was suggested to be generally useful to estimate the VO_2 and spent Calorie in disabled patients except those due to cervical injury.

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