Muscle Mass and Muscle Strength Relationships to Balance: The Role of Age and Physical Activity

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書誌事項

公開日
2020-04-01
DOI
  • 10.1123/japa.2018-0113
公開者
Human Kinetics

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<jats:p><jats:italic><jats:bold>Objective</jats:bold>:</jats:italic>To investigate the relations of balance to muscle mass (MM) and muscle strength (MS), depending on age and physical activity, which is of particular importance to functional independence in older people.<jats:italic><jats:bold>Methods</jats:bold>:</jats:italic>This cross-sectional study included 802 volunteers (69.82 ± 5.60 years). The Fullerton Advanced Balance scale was used to assess balance and a composite score, including arm curl and chair stand tests for assessing MS. MM was estimated by dual-energy X-ray absorptiometry and physical activity by questionnaire.<jats:italic><jats:bold>Results</jats:bold>:</jats:italic>Greater MM (<jats:italic>r</jats:italic> = .26,<jats:italic>p</jats:italic> < .001) and MS (<jats:italic>r</jats:italic> = .53,<jats:italic>p</jats:italic> < .001) were positively correlated to balance. The old-old adults and less active individuals attained lower balance. Notably, moderation and subsequent simple slope analyses revealed that the relations of balance, MM, and MS were larger in less active and the old-old adults.<jats:italic><jats:bold>Conclusions</jats:bold>:</jats:italic>The old-old and less active adults were more prone to muscle weakness and balance impairments. Tailored interventions should particularly consider these vulnerable groups.</jats:p>

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