阻力式訓練及鈣補充對骨質密度與骨骼代謝之影響

The Effects of Resistant Training and Calcium Supplementation on Bone Mineral Density and Bone Metabolism

林瑞興(Jui-Hsing Lin)

《體育學報》 39卷2期 (2006/06) Pp. 13-23

https://doi.org/10.6222/pej.3902.200606.1202

摘要

Purpose: The purpose of this study was to examine the effects of 4 months resistant training and calcium supplementation on bone mineral density and bone metabolism (parathyroid hormone, osteocalcin) in university students. Methods: Thirty-six students (age 21.3±0.9 yrs) were assigned to three groups. Resistant training group included 13 students (Group RT). Resistant training and calcium supplementation included 13 students (Group RTCS) and control group included 10 students (Group C). The subjects of Group RT and RTCS were asked to resistant training. The intensity was ACSM's recommended 12-15RM, 2-3 sets, 2-3 days per week during 4 months. The subjects of Group RTCS were given 1000mg calcium supplementation per day. Group C was asked to maintain their habitual lifestyle throughout the whole period of the study. All subjects underwent the following measurements: bone mineral density (BMD), parathyroid hormone, and osteocalcin were evaluated before and at the end of this study. BMD at L2-4 and femoral neck were measured with dual-energy X-ray absorptiometry (DEXA). The data were analyzed by two-way analysis of variance (Group×time) with repeated measures to examine any changes after training. The statistical significance was determined at α=0.05. Results: We found that femoral neck BMD was significant improvement between pre-training and post-training in Group RT and RTCS (p＜ .05). But there was no significant difference (p＞ .05) in lumbar spine (L2-4) BMD. We also found that PTH and osteocalcin was significant improvement in Group RTCS (p＜ .05) but not in Group RT and C. Conclusion: We suggest that resistance training and calcium supplementation (Group RTCS) can increase serum parathyroid hormone, osteocalcin and femoral neck BMD but not in lumbar spine BMD. Only resistant training (group RT) can't increase serum osteocalcin. Further studies are required to determine whether different regional BMD increases in resistant training and calcium supplementation for university students.

關鍵字

阻力式訓練 ； 骨質密度 ； PTH ； 骨鈣素

並列摘要

Purpose: The purpose of this study was to examine the effects of 4 months resistant training and calcium supplementation on bone mineral density and bone metabolism (parathyroid hormone, osteocalcin) in university students. Methods: Thirty-six students (age 21.3±0.9 yrs) were assigned to three groups. Resistant training group included 13 students (Group RT). Resistant training and calcium supplementation included 13 students (Group RTCS) and control group included 10 students (Group C). The subjects of Group RT and RTCS were asked to resistant training. The intensity was ACSM's recommended 12-15RM, 2-3 sets, 2-3 days per week during 4 months. The subjects of Group RTCS were given 1000mg calcium supplementation per day. Group C was asked to maintain their habitual lifestyle throughout the whole period of the study. All subjects underwent the following measurements: bone mineral density (BMD), parathyroid hormone, and osteocalcin were evaluated before and at the end of this study. BMD at L2-4 and femoral neck were measured with dual-energy X-ray absorptiometry (DEXA). The data were analyzed by two-way analysis of variance (Group×time) with repeated measures to examine any changes after training. The statistical significance was determined at α=0.05. Results: We found that femoral neck BMD was significant improvement between pre-training and post-training in Group RT and RTCS (p＜ .05). But there was no significant difference (p＞ .05) in lumbar spine (L2-4) BMD. We also found that PTH and osteocalcin was significant improvement in Group RTCS (p＜ .05) but not in Group RT and C. Conclusion: We suggest that resistance training and calcium supplementation (Group RTCS) can increase serum parathyroid hormone, osteocalcin and femoral neck BMD but not in lumbar spine BMD. Only resistant training (group RT) can't increase serum osteocalcin. Further studies are required to determine whether different regional BMD increases in resistant training and calcium supplementation for university students.

並列關鍵字

resistant training ； BMD ； parathyroid hormone ； osteocalcin

參考文獻

林瑞興(2004)。阻力式訓練及鈣補充對骨質密度的影響。中華體育季刊。18(1)，1-8。

林麗娟(2005)。不同身體負載運動對女性運動員骨質密度與骨骼代謝之影響。體育學報。38(1)，69-88。

姚維仁、吳重慶(1999)。骨質密度測量方法的最新發展。秀傳醫學雜誌。1(4)，179-185。

人間福報電子報網頁

Anderson, J. B.,SjÖberg, H. E.(2001).Dietary calcium and bone health in the elderly: uncertainties about recommendations.Nutrition Research.21,263-268.