排球练习在青春期前男孩生长期间增加骨量：一项为期 1 年的纵向研究。
Volleyball practice increases bone mass in prepubescent boys during growth: A 1-yr longitudinal study.
机构信息
Research Laboratory of Exercise Physiology and Pathophysiology: From Integral to Molecular "Biology, Medicine and Health" (LR19ES09), Faculty of Medicine of Sousse, University of Sousse, Sousse, Tunisia.
Research Laboratory: Education, Motricity, Sport and Health, EM2S, LR19JS01, High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax, Tunisia.
出版信息
PLoS One. 2022 Apr 7;17(4):e0266257. doi: 10.1371/journal.pone.0266257. eCollection 2022.
The aim of this longitudinal study was to examine the effects of 1-yr of volleyball practice on the bone mass development in the growing skeleton among prepubescent children. Twenty volleyball players and nine teen matched control boys (Tanner stage 1, at the start of the study) were followed over a 1-yr period. Bone mineral density (BMD, g/cm2), bone mineral content (BMC, g) were measured by dual-energy X-ray absorptiometry on the whole body, lumbar spine (L2-L4), legs, arms, femoral necks, hips and radii. At follow-up, in comparison with controls, volleyball players gained more BMD in whole body (4.5% vs 1.7%; p = 0.014), both nondominant and dominant arms (5.8% vs 1.1% p = 0.005, and 6% vs 2.1%; p = 0.003, respectively), both nondmoninat and dominant legs (9% vs 4.8%; p = 0.005 and 10.7% vs 6% p = 0.0025; respectively), dominant ultradistal radius (10.4% vs 0.9%; p = 0.005), dominant third distal radius (9.6% vs 3.71%; p = 0.023), dominant whole radius (7.4% vs 3.1%; p = 0.017), lumbar spine L2-L4 (9.9% vs 2.8%; p = 0.004), femoral neck (4.7% vs 1.6%; p = 0.034), trochanter (6% vs 1.5%; p<0.001) and total hip (6.1% vs 2.6%; p = 0.006). Volleyball players gained more BMC in both nondominant and dominant arms (25.1% vs 13.4%; p = 0.003, and 26.1% vs 15.6%; p<0.001 respectively), both nondominant and dominant legs (20.2% vs 14.5%; p = 0.004 and 23% vs 16%; p = 0.004, respectively), dominant ultradistal radius (22.4% vs 8.7%; p = 0.002), dominant third distal radius (20.9% vs 5.9%; p = 0.001), dominant whole radius (20% vs 13%), nondominant third distal radius (14.5% vs 5.9%; p = 0.001), nondominant whole radius (21.1% vs 12%; p = 0.002), lumbar spine L2-L4 (21.1% vs 13.7%; p = 0.007), femoral neck (25.9% vs 8.7%; p = 0.007), trochanter (23.5% vs 17.1%; p = 0.006), and total hip (16.3% vs 11.3%; p = 0.009) than controls. A close correlation was observed between the increment (Δ) of whole body lean mass and increased (Δ) BMD and BMC in whole body (r = 0.43, p<0.01, r = 0.73, p<0.001; respectively), lumbar spine (r = 0.54, r = 0.61, p<0.001; respectively), trochanter (r = 0.46, p<0.01, r = 0.35, p<0.05; respectively), and total hip (r = 0.53, p<0.01, r = 0.6, p<0.0001; respectively). In summary, 1-yr of volleyball practice has an osteogenic effect on bone mass in loaded sites in prepubescent boys.
本纵向研究的目的是观察 1 年排球练习对青春期前儿童生长骨骼骨量发育的影响。20 名排球运动员和 9 名年龄匹配的对照组男孩（研究开始时处于 Tanner 1 期）在 1 年内进行了随访。通过双能 X 射线吸收法对全身、腰椎（L2-L4）、腿部、手臂、股骨颈、臀部和桡骨进行骨矿物质密度（BMD，g/cm2）和骨矿物质含量（BMC，g）测量。随访时，与对照组相比，排球运动员全身（4.5%对 1.7%；p=0.014）、非优势和优势手臂（5.8%对 1.1%，p=0.005 和 6%对 2.1%，p=0.003）、非优势和优势腿（9%对 4.8%，p=0.005 和 10.7%对 6%，p=0.0025）、优势远端桡骨（10.4%对 0.9%，p=0.005）、优势第 3 远端桡骨（9.6%对 3.71%，p=0.023）、优势整个桡骨（7.4%对 3.1%，p=0.017）、腰椎 L2-L4（9.9%对 2.8%，p=0.004）、股骨颈（4.7%对 1.6%，p=0.034）、转子（6%对 1.5%，p<0.001）和总髋部（6.1%对 2.6%，p=0.006）的 BMD 增加更多。排球运动员在非优势和优势手臂（25.1%对 13.4%，p=0.003 和 26.1%对 15.6%，p<0.001）、非优势和优势腿部（20.2%对 14.5%，p=0.004 和 23%对 16%，p=0.004）、优势远端桡骨（22.4%对 8.7%，p=0.002）、优势第 3 远端桡骨（20.9%对 5.9%，p=0.001）、优势整个桡骨（20%对 13%）、非优势第 3 远端桡骨（14.5%对 5.9%，p=0.001）、非优势整个桡骨（21.1%对 12%，p=0.002）、腰椎 L2-L4（21.1%对 13.7%，p=0.007）、股骨颈（25.9%对 8.7%，p=0.007）、转子（23.5%对 17.1%，p=0.006）和总髋部（16.3%对 11.3%，p=0.009）的 BMC 增加更多。全身瘦体重的增量（Δ）与全身（r=0.43，p<0.01，r=0.73，p<0.001）、腰椎（r=0.54，r=0.61，p<0.001）、转子（r=0.46，p<0.01，r=0.35，p<0.05）和总髋部（r=0.53，p<0.01，r=0.6，p<0.0001）的 BMD 和 BMC 增加呈密切相关。总之，1 年的排球练习对青春期前男孩的负荷部位骨量有骨生成作用。
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