Pasqualini Leonella, Leli Christian, Ministrini Stefano, Schillaci Giuseppe, Zappavigna Rosa M, Lombardini Rita, Scarponi Anna M, Mannarino Elmo
Section of Internal Medicine, Department of Medicine, University of Perugia, Perugia, Italy.
Section of Microbiology, Department of Experimental Medicine, Università degli Studi di Perugia, Perugia, Italy.
J Sports Med Phys Fitness. 2017 Mar;57(3):238-243. doi: 10.23736/S0022-4707.16.06054-0. Epub 2016 May 31.
Peak of bone mass (PBM) is generally reached about the age of 18 both in boys and girls. Maximizing PBM during growth may contribute to fracture risk reduction in adulthood and in the elderly. The aim of our study was to evaluate the effects on bone mineral density (BMD) of global physical activity (PA), carried out in the past 15 years, in a population of 70 healthy, young male and female subjects aged 22 to 25.
BMD of the lumbar spine and total hip was measured using dual-energy X-ray absorptiometry (DEXA); global PA, resulting from sports-related, occupational and commuting PA, was evaluated using validated questionnaires.
Women spent more time than men both in sports-related, occupational and commuting PA in the age range between 10-15 years. In the female group global PA positively correlated with BMD of the lumbar spine (r=0.38; P=0.02) and the total hip (r=0.36; P=0.04) and BMD of the lumbar spine was independently predicted by global PA and Body Mass Index.
Our retrospective cross-sectional study indicates that global PA, not only sports-related PA, performed during prepubertal age, is associated with a greater PBM in women.
男性和女性的骨量峰值（PBM）通常在18岁左右达到。在生长过程中使PBM最大化可能有助于降低成年期和老年期的骨折风险。我们研究的目的是评估过去15年中在70名年龄在22至25岁的健康年轻男性和女性中进行的总体身体活动（PA）对骨密度（BMD）的影响。
使用双能X线吸收法（DEXA）测量腰椎和全髋部的骨密度；使用经过验证的问卷评估由与运动相关、职业和通勤的身体活动产生的总体身体活动。
在10至15岁年龄范围内，女性在与运动相关、职业和通勤的身体活动上花费的时间比男性更多。在女性组中，总体身体活动与腰椎骨密度（r = 0.38；P = 0.02）和全髋部骨密度（r = 0.36；P = 0.04）呈正相关，并且腰椎骨密度由总体身体活动和体重指数独立预测。
我们的回顾性横断面研究表明，不仅是与运动相关的身体活动，青春期前进行的总体身体活动与女性更高的骨量峰值相关。
