Age and Sex Differences in Orofacial Strength(年齢・性別による口腔顔面筋力差)
嚥下関連の学会誌として「dysphagia」(2009.IF1.577)がある。日本摂食・嚥下リハビリテーション学会にリンクされているためご存じの先生方も多いと思う。
今回dysphagiaより「Age and Sex Differences in Orofacial Strength 」(Ben Hanson • Mark T.O’Leary • Christina H. Smith)より読んでみた。
今回dysphagiaより「Age and Sex Differences in Orofacial Strength 」(Ben Hanson • Mark T.O’Leary • Christina H. Smith)より読んでみた。
Abstract
This study explored age- and sex-related differences in orofacial strength. Healthy adult men (N = 88) and women (N = 83) participated in the study. Strength measures were obtained using the Iowa Oral Performance Instrument (IOPI). Anterior and posterior tongue elevation strength measures were obtained using a standard method. Tongue protrusion and lateralization, cheek compression, and lip compression measures utilized adaptors allowing the participant to exert pressure against the bulb in different orientations. Lip and cheek strength measures were greater for men than women, but tongue strength did not differ between sex groups. Strong correlations between age and strength were not observed. However, group comparisons revealed lower tongue protrusion and lateralization strength in the oldest participants. The oldest participants also exhibited lower anterior and posterior tongue elevation strength relative to the middle-age group. Cheek and lip compression strength demonstrated no age-related differences. The current study supplements and corroborates existing literature that shows that older adults demonstrate lower tongue strength than younger adults. Sex differences were noted such that men demonstrated greater lip and cheek strength but not tongue strength. These data add to the literature on normal orofacial strength, allowing for more informed interpretations of orofacial weakness in persons with dysphagia.
This study explored age- and sex-related differences in orofacial strength. Healthy adult men (N = 88) and women (N = 83) participated in the study. Strength measures were obtained using the Iowa Oral Performance Instrument (IOPI). Anterior and posterior tongue elevation strength measures were obtained using a standard method. Tongue protrusion and lateralization, cheek compression, and lip compression measures utilized adaptors allowing the participant to exert pressure against the bulb in different orientations. Lip and cheek strength measures were greater for men than women, but tongue strength did not differ between sex groups. Strong correlations between age and strength were not observed. However, group comparisons revealed lower tongue protrusion and lateralization strength in the oldest participants. The oldest participants also exhibited lower anterior and posterior tongue elevation strength relative to the middle-age group. Cheek and lip compression strength demonstrated no age-related differences. The current study supplements and corroborates existing literature that shows that older adults demonstrate lower tongue strength than younger adults. Sex differences were noted such that men demonstrated greater lip and cheek strength but not tongue strength. These data add to the literature on normal orofacial strength, allowing for more informed interpretations of orofacial weakness in persons with dysphagia.
この論文では、舌圧について性差で有意差がなかったことや、年齢と強さに相関関係がないとする一方で、老年者の方が舌の前後方挙上力が高いことを示している。
筋力測定には様々な要因が絡んでいるが、単純に高齢化=筋力低下と決めつけてはいけないと改めて考えさせられた。
ちなみに、下の図はアイオワオーラルパフォーマンス道具(IOPI)で測定している図である。
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