The Korean journal of sports medicine (대한스포츠의학회지)

The Korean Society of Sports Medicine (대한스포츠의학회)
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Effects of Leg-Weight Loading on Energy Expenditure and Heart Rate Response during Gradual Speed Treadmill Walking Exercise

단계적 점증부하 트레드밀 걷기 운동시 하지부위 중량부하가 에너지소비량 및 심박수 반응에 미치는 영향

Jeong , Il-Gyu;Yoon, Jin-Hwan;Kim, Young-Pyo;Kim, Jong-Oh;Oh, Myung-Jin;Seo, Tae-Bum
정일규;윤진환;김영표;김종오;오명진;서태범

  • Published : 20030000
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Abstract

This study was designed to investigate the effect of leg-weight loading on energy expenditure and heart rate response during gradual speed-up treadmill walking exercise. Nine volunteer college students were asked to walk two times at various incremental speeds on treadmill being loaded with 2.3 kg weight belt at their ankle and without being loaded. The duration of each stage was 3minutes and every subject was encouraged to keep performing till their exhaustion states. Loading the weight(mean 3.09% of subject`s body weight) at ankle during treadmill walk showed no remarkable change in oxygen consumption, energy expenditure at less than 6km/hr walk speed compared to no loading walk. But, at the 7 km/hr walk speed significant increase of oxygen consumption and energy expenditure were found(p<0.05). Heart rate response was also significantly increased only at more than 7 km/hr walk speed(p<0.01). These results represent that the threshold of treadmill walk speed inducing significant increase of oxygen consumption, energy expenditure and cardiovascular response might be 7 km/hr in healthy collegeate students when the weight corresponding 3.09% of their body weight would be loaded at their ankle.

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