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Gain in mass density of bone following strenuous physical activity
Author(s) -
Leichter Isaac,
Simkin Ariel,
Margulies Joseph Y.,
Bivas Arye,
Steinberg Raya,
Giladi Michael,
Milgrom Charles
Publication year - 1989
Publication title -
journal of orthopaedic research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.041
H-Index - 155
eISSN - 1554-527X
pISSN - 0736-0266
DOI - 10.1002/jor.1100070112
Subject(s) - bone density , tibia , medicine , bone mineral , bone mass , bone structure , period (music) , physical activity , orthodontics , anatomy , physical therapy , physics , osteoporosis , acoustics
A group of 223 military recruits aged 18–21 years underwent strenuous physical training for a period of 14 weeks. The absolute bone density of the distal tibia in both lower limbs was measured before the training period and at its end. The density was determined by the Compton scattering technique, which has been developed in our laboratory; this method provides the bone mass of all bone constituents per unit volume. The distribution curve of the bone density in both tibiae shifted to higher values at the end of the training period. The mean bone density in the right and left tibia increased significantly by 7.5%. This study indicates that following an intensive physical exercise regime, a significant increase in the mass density of bone can be obtained in young adults within a short period.