Physical Therapy Korea (한국전문물리치료학회지)
- Volume 9 Issue 1
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- Pages.43-51
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- 2002
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- 1225-8962(pISSN)
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- 2287-982X(eISSN)
Physiological Cost Index of Walking in Healthy Children
건강한 아동이 걸을 때에 생리학적 소비지수
- Lee, Hyang-Sook (Dept. of Occupational Therapy & Rehabilitation Medicine, Chungnam National University Hospital) ;
- Kim, Bong-Ok (Dept. of Rehabilitation Medicine, College of Medicine, Chungnam National University)
- Published : 2002.02.19
Abstract
Physiological Cost Index (PCI) of walking has been widely used to predict oxygen consumption in healthy subjects or patients. The purpose of this study was to evaluate the predictability of physiological cost index of walking for the amount of exercise and cardiac function. Walking exercise was conducted in 67 healthy children (age 4-12) with a self-selected comfortable walking speed on the level surface. Walking speed was calculated, and heart rate was measured before and immediately after the walking. PCI was calculated for statistical analysis. The results were as follows; 1) The walking speed tends to increase and PCI of walking tends to decrease with age. There was significant difference in walking speed and PCI of walking among three age groups (p<.05). The change of walking heart rate tends to decrease with age, however, there was no significant difference among three age groups. 2) Linear regression equation between walking speed and age was 'Y (walking speed) = 2.124X (age) + 48.286' (
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