| Keywords |
Wear training ; Thermal alternation stimulaion ; Cold tolerance ; Prehypertension ; Physiological responses |
| Abstract |
This study was conducted to investigate the effects of wear training as a thermal alternation stimulus therapy on cold tolerance. Four male subjects with prehypertension participated in the investigation. Wear training in this study means that subjects wear alternately and repeatedly light clothing as the cool stimulus (mean temperature inside clothing: 30.13 ± 1.0℃) and heavy clothing as the warm stimulus (temperature inside clothing: 31.65 ± 1.0℃) in the cool environment during 4 weeks. Cold tolerance tests were conducted in a climatic chamber of 15.0 ± 0.5℃ and 25 ± 3%RH at the before and after wear training. Systolic/diastolic blood pressures and heart rates were decreased in post-test than those in pre-test. Pulse transit time and change of energy expenditure were increased in post-test than those in pretest. These results suggest that wear training by thermal alternation stimulation positively affected the cold tolerance of the participants. |