in order to improve the acquired level of heat acclimatization (HA) by training, on the basis of singlemode march training (SMT) or single-mode cross-country race training (SCT) , combined training method of march and...in order to improve the acquired level of heat acclimatization (HA) by training, on the basis of singlemode march training (SMT) or single-mode cross-country race training (SCT) , combined training method of march and cross-country race in the heat was adopted in this experiment ,and the effect of the training on heat tolerance was analyzed. Eight young males were asked to perform a simulated SMT and SCT for 90 min on a treadmill in a hot climate chamber (Td 32. 7℃ , WBGT 28. 4℃ ) once daily for 10 to 12 d within two weeks. The results showed that rectal temperature (Tr) was reduced by 0. 61℃ , heart rate (Hr) by 8. 5 b/min,sweat volume (SV)by 0. 220 kg, physiological strain index (PSI)by 0. 620,systolic pressure (SP)and diastolic pressure (DP) had a little change, pulse pressure (PP) and stroke volume (StV) increased , and cardiac output (CO) decreased a little at the middle stage and increased at the late stage due to Hr change. The standardized bicycle ergometer test (SBE test) in the heat (Td 37℃)has proved that these physiological indexes post-training had significant improvements ,as compared with those pre-training, suggesting that the combined training could raise heat-tolerance and was superior to the SMT in improving acquired heat acclimatization in same training duration and times , and to the SCT in regulating body temperature and cardiovascular function and in prolonging heat tolerance duration.展开更多
This paper reports the effects of two trainings-5 km cross-country race and 15 min heat-bath on theimprovement of heat-tolerance. All subjects of the training group were asked to perform a training once daily for 10to...This paper reports the effects of two trainings-5 km cross-country race and 15 min heat-bath on theimprovement of heat-tolerance. All subjects of the training group were asked to perform a training once daily for 10to 12 d within two weeks. The results proved that the cross-country race training both in the artificial hot chamberand on the drill ground of troop could obtain evident training-adaptation. The rectal temperature, heart rate, andsweat volume reduced by 0. 39℃, 13. 2 b/min and 338 g during training in field, respectively. In the same period ofcross-country race training, the normal military exercises, labours and natural heat acclimatization in the summercould only raise slightly the level of heat acclimatization in soldiers. Heat-bath training could reduce rectal temperature by 0. 6℃ during immersion in hot water, however, the level of heat-tolerance in a hot climatic chamber was inferior to that attained by cross-country race, march and running training.展开更多
文摘in order to improve the acquired level of heat acclimatization (HA) by training, on the basis of singlemode march training (SMT) or single-mode cross-country race training (SCT) , combined training method of march and cross-country race in the heat was adopted in this experiment ,and the effect of the training on heat tolerance was analyzed. Eight young males were asked to perform a simulated SMT and SCT for 90 min on a treadmill in a hot climate chamber (Td 32. 7℃ , WBGT 28. 4℃ ) once daily for 10 to 12 d within two weeks. The results showed that rectal temperature (Tr) was reduced by 0. 61℃ , heart rate (Hr) by 8. 5 b/min,sweat volume (SV)by 0. 220 kg, physiological strain index (PSI)by 0. 620,systolic pressure (SP)and diastolic pressure (DP) had a little change, pulse pressure (PP) and stroke volume (StV) increased , and cardiac output (CO) decreased a little at the middle stage and increased at the late stage due to Hr change. The standardized bicycle ergometer test (SBE test) in the heat (Td 37℃)has proved that these physiological indexes post-training had significant improvements ,as compared with those pre-training, suggesting that the combined training could raise heat-tolerance and was superior to the SMT in improving acquired heat acclimatization in same training duration and times , and to the SCT in regulating body temperature and cardiovascular function and in prolonging heat tolerance duration.
文摘This paper reports the effects of two trainings-5 km cross-country race and 15 min heat-bath on theimprovement of heat-tolerance. All subjects of the training group were asked to perform a training once daily for 10to 12 d within two weeks. The results proved that the cross-country race training both in the artificial hot chamberand on the drill ground of troop could obtain evident training-adaptation. The rectal temperature, heart rate, andsweat volume reduced by 0. 39℃, 13. 2 b/min and 338 g during training in field, respectively. In the same period ofcross-country race training, the normal military exercises, labours and natural heat acclimatization in the summercould only raise slightly the level of heat acclimatization in soldiers. Heat-bath training could reduce rectal temperature by 0. 6℃ during immersion in hot water, however, the level of heat-tolerance in a hot climatic chamber was inferior to that attained by cross-country race, march and running training.
