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Effects of resistance and endurance exercise on bone mineral status of young women: a randomized exercise intervention trial.
J Bone Miner Res 1992; 7(7):761-9JB

Abstract

A substantial body of cross-sectional data and a smaller number of intervention trials generally justify optimism that regular physical activity benefits the skeleton. We conducted an 8 month controlled exercise trial in a group of healthy college women (mean age = 19.9 years) who were randomly assigned to a control group or to progressive training in jogging or weight lifting. We measured the following variables: bone mineral density (BMD) of the spine (L2-4) and right proximal femur using dual-energy x-ray absorptiometry, dynamic muscle strength using the 1-RM method, and endurance performance using the 1.5 mile walk/run field test. A total of 31 women completed the 8 month study. For women completing the study, compliance, defined as the percentage of workout sessions attended, was 97% for the runners (range 90-100%) and 92% (range 88-100%) for the weight trainers. Body weight increased by approximately 2 kg in all groups (p less than 0.05). Weight training was associated with significant increases (p less than 0.01) in muscle strength in all muscle groups. Improvement ranged from 10% for the deep back to 54% for the leg. No significant changes in strength scores were observed in the control or running groups. Aerobic performance improved only in the running group (16%, p less than 0.01). Lumbar BMD increased (p less than 0.05) in both runners (1.3 +/- 1.6%) and weight trainers (1.2 +/- 1.8%). These results did not differ from each other but were both significantly greater than results in control subjects, in whom bone mineral did not change.(

ABSTRACT

TRUNCATED AT 250 WORDS)

Authors+Show Affiliations

Musculoskeletal Research Laboratory, GRECC, Department of Veterans Affairs Medical Center, Palo Alto, California.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Journal Article
Randomized Controlled Trial
Research Support, U.S. Gov't, Non-P.H.S.
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

1642145

Citation

Snow-Harter, C, et al. "Effects of Resistance and Endurance Exercise On Bone Mineral Status of Young Women: a Randomized Exercise Intervention Trial." Journal of Bone and Mineral Research : the Official Journal of the American Society for Bone and Mineral Research, vol. 7, no. 7, 1992, pp. 761-9.
Snow-Harter C, Bouxsein ML, Lewis BT, et al. Effects of resistance and endurance exercise on bone mineral status of young women: a randomized exercise intervention trial. J Bone Miner Res. 1992;7(7):761-9.
Snow-Harter, C., Bouxsein, M. L., Lewis, B. T., Carter, D. R., & Marcus, R. (1992). Effects of resistance and endurance exercise on bone mineral status of young women: a randomized exercise intervention trial. Journal of Bone and Mineral Research : the Official Journal of the American Society for Bone and Mineral Research, 7(7), pp. 761-9.
Snow-Harter C, et al. Effects of Resistance and Endurance Exercise On Bone Mineral Status of Young Women: a Randomized Exercise Intervention Trial. J Bone Miner Res. 1992;7(7):761-9. PubMed PMID: 1642145.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of resistance and endurance exercise on bone mineral status of young women: a randomized exercise intervention trial. AU - Snow-Harter,C, AU - Bouxsein,M L, AU - Lewis,B T, AU - Carter,D R, AU - Marcus,R, PY - 1992/7/1/pubmed PY - 1992/7/1/medline PY - 1992/7/1/entrez SP - 761 EP - 9 JF - Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research JO - J. Bone Miner. Res. VL - 7 IS - 7 N2 - A substantial body of cross-sectional data and a smaller number of intervention trials generally justify optimism that regular physical activity benefits the skeleton. We conducted an 8 month controlled exercise trial in a group of healthy college women (mean age = 19.9 years) who were randomly assigned to a control group or to progressive training in jogging or weight lifting. We measured the following variables: bone mineral density (BMD) of the spine (L2-4) and right proximal femur using dual-energy x-ray absorptiometry, dynamic muscle strength using the 1-RM method, and endurance performance using the 1.5 mile walk/run field test. A total of 31 women completed the 8 month study. For women completing the study, compliance, defined as the percentage of workout sessions attended, was 97% for the runners (range 90-100%) and 92% (range 88-100%) for the weight trainers. Body weight increased by approximately 2 kg in all groups (p less than 0.05). Weight training was associated with significant increases (p less than 0.01) in muscle strength in all muscle groups. Improvement ranged from 10% for the deep back to 54% for the leg. No significant changes in strength scores were observed in the control or running groups. Aerobic performance improved only in the running group (16%, p less than 0.01). Lumbar BMD increased (p less than 0.05) in both runners (1.3 +/- 1.6%) and weight trainers (1.2 +/- 1.8%). These results did not differ from each other but were both significantly greater than results in control subjects, in whom bone mineral did not change.(ABSTRACT TRUNCATED AT 250 WORDS) SN - 0884-0431 UR - https://www.unboundmedicine.com/medline/citation/1642145/Effects_of_resistance_and_endurance_exercise_on_bone_mineral_status_of_young_women:_a_randomized_exercise_intervention_trial_ L2 - https://doi.org/10.1002/jbmr.5650070706 DB - PRIME DP - Unbound Medicine ER -