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KMID : 1024120110580010123
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Journal of Aerospace Medical Center, ROKAF
2011 Volume.58 No. 1 p.123 ~ p.131
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Comparison of Exercise Capacity According to Altitude Variation in Artillery Soldier
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Kim Bum-Sung
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Abstract
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Background : In high altitude environment, oxygen partial pressure in alveolar is decreased compared with sea level environment. Low oxygen partial pressure has negative effect on aerobic exercise even in young healthy persons. The aim of this study was to evaluate the exercise capacity variation according to altitude for soldier serviced in Air Defense Artillery Battery was located in high altitude.
Methods : This study was conducted from December 2010 to January 2011. We included 6 persons who had similar exercise capacity. Exercise tests were performed at 400 m and 1450 m altitude for 6 persons and we investigated the time of increased to target heart rate (time to target heart rate; TTTH), recovery time from target heart rate to baseline heart rate (time to baseline heart rate; TTBH) and post exercise blood pressure (PEBP).
Results : In 1450 m altitude, TTHR was significantly shorter compared with those of 400 m altitude (292 ± 53.2 sec vs 573 ± 31.2 sec, P <0.05). However, TTBH and PEBP were showed no significant difference between 1450 m and 400 m altitude.
Conclusion : The result showed that TTHR was decreased significantly at high altitude, comparing with those of low altitude. Our result is meaningful in that these data would be helpful to manage health of Artillery soldier.
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KEYWORD
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High altitude, Exercise capacity, Target heart rate, Time to target heart rate, Time to baseline heart rate
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