Effect of physical activity on body composition
It has been noted that the deleterious effects on bone calcium of prolonged periods of inactivity, such as bed rest, are halted following resumption of activity. It would seem possible in light of the observations that have been made, that exercise may stimulate bone formation and perhaps counter, to some extent, bone loss as observed in the osteoporosis of aging. The present study was designed to determine the relation between total body calcium, total body potassium and bone mineral content of the radius to the degree of physical activity in a population of normal subjects. Measurement of the calcium was made by in-vivo total body neutron activation analysis. Bone mineral content of the radius and total body potassium, (an index of lean body mass) were measured by photon absorptiometry and the whole body counter, respectively.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 5177034
- Report Number(s):
- BNL-28008; CONF-800690-1
- Resource Relation:
- Conference: 10. steenback symposium, Madison, WI, USA, 8 Jun 1980
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
EXERCISE
BIOLOGICAL EFFECTS
MAN
CALCIUM
POTASSIUM
SKELETON
ACTIVATION ANALYSIS
ECOLOGICAL CONCENTRATION
OSTEOPOROSIS
ALKALI METALS
ALKALINE EARTH METALS
ANIMALS
BODY
CHEMICAL ANALYSIS
DISEASES
ELEMENTS
MAMMALS
METALS
ORGANS
PRIMATES
SKELETAL DISEASES
VERTEBRATES
551000* - Physiological Systems