| Autor: |
Tingelstad, H., Reilly, T., Kehoe, B., Verdon, E., Semeniuk, K., Haman, F. |
| Předmět: |
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| Zdroj: |
Journal of Military & Veterans' Health; May2020, Vol. 28 Issue 2, p6-17, 12p |
| Abstrakt: |
Purpose: This study investigated the effects of heat exposure and previous experience on thermoregulatory and cardiovascular responses to performing a loaded march in the HEAT and on FORCE Combat™ circuit performance Methods: Ten civilians (inexperienced) and 10 infantry reservists (experienced) performed a 60 min loaded march (~35kg), in NORMAL (21±0 2°C) and HEAT (30±0 2°C) conditions and the FORCE Combat™ military physical performance evaluation Participant groups were matched for morphology and physiological capacity Results: Out of the 10 experienced participants that participated in the loaded march in HEAT, 9 completed the full 60 min but only 5 of 10 inexperienced participants were able to do the same Performing a loaded march in the HEAT caused a state of uncompensable heat stress (continuous increase in core temperature) for both the inexperienced and experienced participants Heart rate (134±12vs143±9bpm,p=0 027), rate of perceived exertion (13±1vs10±1,p≤0 001) and thermal comfort (1 9±0 5vs2 4±0 4,p=0 011) were lower in the experienced compared to the inexperienced group during the loaded march in HEAT The FORCE Combat™ completion times were higher in HEAT compared to NORMAL, but lower in experienced participants in both conditions (p≥0 05) Conclusion: Both heat exposure and previous experience had an effect on cardiovascular, thermal and subjective measures during the loaded march and on completion time of the FORCE Combat™ circuit. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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