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INFLUENCE OF LEVEL OF HABITUAL ACTIVITY ON PHYSICAL WORKING CAPACITY AND BODY COMPOSITION OF POST‐PUBERAL SCHOOL BOYS
Author(s) -
Watson A. W. S.,
O'Donovan D. J.
Publication year - 1977
Publication title -
quarterly journal of experimental physiology and cognate medical sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.925
H-Index - 101
eISSN - 1469-445X
pISSN - 0033-5541
DOI - 10.1113/expphysiol.1977.sp002404
Subject(s) - composition (language) , physical activity , psychology , mathematics , physical therapy , medicine , art , literature
The relationships between level of habitual activity, physical working capacity at a heart rate of 170 beats per minute (PWC 170 ), % fat and body size, have been investigated in 85 post‐puberal males aged 16 to 18. Percentage of fat was estimated from the sum of four skinfold thicknesses and body size characterized by: height and weight; arm, chest, calf and thigh circumferences; biacromial and bi‐iliac diameters. PWC 170 was found to be significantly related to level of habitual activity and to most measures of body size; multiple regression analysis indicates that level of habitual activity and size respectively account for 34% and 37% of the variance in PWC 170 . When differences in the body weight of the subjects were statistically removed, % fat was related positively to arm circumference, and negatively to height and bi‐iliac diameter. There was no relationship between % fat and level of habitual activity. The possible significance of these results is discussed.