生活習慣修正指導が体力やワークアビリティーに及ぼす効果 : 仕事での身体活動度の違いに着目して The Effect of Lifestyle Modification on Physical Fitness and Work Ability in Different Workstyles
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本研究では, 仕事での身体活動度の違いが体力に及ぼす影響, および12週間の生活習慣修正指導（介入指導）が体力や仕事の満足度, 自覚症状に及ぼす効果について解析を行った. 対象は男性労働者49名とした. 体力測定と自記式の問診票（仕事や余暇での活動量, 自覚症状, 仕事に対する満足度）を介入前後で実施した. 仕事での身体活動度の違いでActive work group（A群）とSedentary work group（S群）の2群に分け分析した. A群はS群に比べ全身持久力と平衡性が優れ, 疲労感はS群の方が多い傾向にあった. 介入効果は, A群では柔軟性と筋力が, S群では全身持久力, 柔軟性, 筋持久力が増加した. また, S群では疲労感や肩こりの改善, 仕事の満足度の増加を認めた. A群ではこれらの効果を認めなかったが, 体力の増強は自覚症状の軽減や仕事の満足度の増加を導く結果を得た. 仕事での身体活動度は体力形成に寄与し, 余暇を活用した生活習慣修正指導は体力を改善することを通して, ワークアビリティーを増加させることに寄与すると考えられた.
It is generally considered that physical fitness is affected by daily life activities including leisure time activity and working time activity. The aim of this study is to investigate the effects of different levels of physical activity at work on physical fitness, analyze the effects of 12-week lifestyle modification outside of working hours on physical fitness, work satisfaction and subjective symptoms, and to consider the role of lifestyle modification in occupational health. Lifestyle modification, consisting of aerobic exercise and diet counseling, was conducted for 12 weeks. The data before and after the intervention from 49 male workers were obtained. Physical fitness such as exercise endurance, flexibility, agility, balance, muscular strength, muscular endurance, and muscular power was measured before and after the intervention. The subjects were asked to fill out questionnaires about their work activities, subjective complaints, and work satisfaction. Subjects were divided into active work group (n=14) and sedentary work group (n=35) for analysis according to their work activities. As for differences in physical fitness due to different levels of physical activity, the active work group had superior exercise endurance and balance compared to the sedentary work group. <BR>In addition, the sedentary work group tended to experience greater fatigue than the active work group. In the active work group, flexibility and muscular strength were significantly increased with lifestyle modification and, in the sedentary work group, exercise endurance, flexibility and muscular endurance were significantly improved while balance also showed a tendency to improve. In the sedentary work group, lifestyle modification resulted in reduced fatigue and stiff neck as well as an increased work satisfaction. In the active work group, no change was observed in complaints or work satisfaction, but improved physical fitness led to a reduction in subjective complaints and an increase in work satisfaction. The level of physical activity at work contributes to the physical fitness of the worker and the addition of aerobic exercise in the worker's leisure time improves physical fitness and thereby contributes to increased work ability regardless of differences in the level of physical activity at work.
- Journal of UOEH
Journal of UOEH 26(4), 411-421, 2004
The University of Occupational and Environmental Health, Japan