The Effects of Exercising in a Hot Spring on Shoulder Stiffness

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  • 温泉入浴中の運動が肩こりに及ぼす影響
  • オンセン ニュウヨク チュウ ノ ウンドウ ガ カタコリ ニ オヨボス エイキョウ

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<p>The objective of the present study was to determine the effects of exercising in a hot spring on shoulder stiffness. Ten adult women with subjective symptoms of shoulder stiffness underwent two different interventions (A: exercise only ; B : exercise while bathing in a hot spring). As indicators of shoulder stiffness, muscle hardness was used to determine muscle tension in the trapezius muscle region and a Visual Analog Scale was used to assess subjective pain. Each indicator was evaluated before, immediately after and 30 minutes after the intervention.</p><p>To determine whether the changes over time in muscle hardness and subjective pain differed between the two interventions, a two-way analysis of variance was performed with the conditions of the interventions and time course. Multiple comparisons were then conducted using the Bonferroni method. The level of statistical significance was set at 5% (two-sided).</p><p>A significant interaction (p<0.001) was observed for muscle hardness between the conditions of the interventions and time course. Muscle hardness significantly decreased (p<0.05) 30 minutes after the completion of Intervention A, while muscle hardness significantly decreased (p<0.05) over the course of time in Intervention B. When the conditions of the interventions were compared, muscle hardness of Intervention B was significantly lower (p<0.05) immediately after and 30 minutes after the intervention. Regarding subjective pain, a significant main effect (p<0.01) was observed with time course alone. In Intervention A and B, subjective pain was significantly lower (p<0.05) immediately after the intervention and 30 minutes after the intervention compared to before the intervention. </p><p>Muscle hardness decreased with exercise alone and it was effective in improving shoulder stiffness. However, combined exercise and bathing in a hot spring decreased muscle hardness sooner and was more effective for ameliorating shoulder stiffness. The study suggested that subjective pain may lead to continued relief with exercise and exercise while bathing in a hot spring.</p>

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