保育・福祉勤労者における体力指標と骨密度との関連 : 前腕骨骨密度を中心として

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タイトル別名
  • Relation between the physical strength index and bone mineral density in childcare and welfare workers
  • ホイク ・ フクシ キンロウシャ ニ オケル タイリョク シヒョウ ト コツミツド ト ノ カンレン : ゼンワンコツ コツミツド オ チュウシン ト シテ

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抄録

Along with rapid population aging, the mean lifespan of females has been steadily extended, leading to a number of serious problems, such the increasing incidence of femoral neck fractures due to osteoporosis in the bedridden elderly. It has been reported that walking 10,000 steps a day and high-intensity exercise prevent a decrease in the bone mineral density (BMD) as effective countermeasures against osteoporosis; however, up to the present, there have been few studies examining the relationship between the BMD of each region and types of exercise. Considering such a situation, this study aimed to clarify the relationship between the forearm BMD and physical strength indicators in healthy male and female workers engaged in childcare and welfare services. Fifty-seven males and 268 females aged 21 to 63, living in Aichi Prefecture, were studied. A physical strength test was conducted to measure the following items: left and right grip strength; forward bending in a standing position; vertical jump; maximum oxygen uptake; and sit-ups. The left forearm BMD (g/cm2) was measured using Xray equipment. The correlation between the left forearm BMD, physical characteristics, and physical strength test results was examined by calculating Pearson’s correlation coefficient and performing partial correlation analysis adjusting for the age and/or body weight. The BMD was shown to be correlated with the age in those aged 40 and over; the BMD tended to decrease with the age. A significant correlation was observed between the BMD and body weight in males, and between the BMD and height and body weight in females under the age of 40. The BMD was significantly correlated with both the height and body weight in females aged 40 and over. Among the physical strength items, the BMD was shown to be significantly correlated with the vertical jump height in males, and the left and right grip strength in females under the age of 40. In females aged 40 and over, the BMD was not significantly correlated with any item.

収録刊行物

  • 総合保健体育科学

    総合保健体育科学 35 (1), 17-21, 2012-03-30

    名古屋大学総合保健体育科学センター

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