{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,25]],"date-time":"2025-09-25T17:12:55Z","timestamp":1758820375370,"version":"3.40.5"},"reference-count":27,"publisher":"Public Library of Science (PLoS)","issue":"9","license":[{"start":{"date-parts":[[2024,9,11]],"date-time":"2024-09-11T00:00:00Z","timestamp":1726012800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001691","name":"KAKENHI","doi-asserted-by":"crossref","award":["22K11618"],"award-info":[{"award-number":["22K11618"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:p>This study examined the effects of birth weight on body composition, physical fitness, and sarcopenia in adulthood among young Japanese women. Seventy young adult women (birth weight &lt;2500 g classified as low-birth-weight group [L-BW, <jats:italic>n<\/jats:italic> = 13] and \u22652500 g classified as not low-birth-weight group [NL-BW, <jats:italic>n<\/jats:italic> = 57]) were evaluated for body composition, physical fitness, and sarcopenia. Skeletal muscle mass was significantly greater (<jats:italic>p<\/jats:italic>&lt;0.05) in the NL-BW group than in the L-BW group for all body sites. Effect sizes for the differences in skeletal muscle mass between the two groups were all larger in the NL-BW group than in the L-BW group (0.86\u20131.44). Knee extension muscle strength was higher in the NL-BW group than in the L-BW group (<jats:italic>p<\/jats:italic> = 0.04), but there were no differences between groups with respect to other physical fitness indicators (<jats:italic>p<\/jats:italic>&gt;0.05). Except for SMI (<jats:italic>p<\/jats:italic>&lt;0.05), other sarcopenia diagnostic evaluations did not differ between the two groups (<jats:italic>p<\/jats:italic>&gt;0.05). In conclusion, L-BW female infants were shorter in standing height and smaller in skeletal muscle mass in terms of morphology at the time of young adulthood compared to NL-BW female infants. In addition, in terms of physical fitness, those with L-BW also had a lower-limb power score and a higher proportion of low skeletal muscle mass. Thus, it was suggested that low birth weight infants may be at risk of needing nursing care in old age (i.e., a high predicted incidence of sarcopenia) as well as thinness problems in the fertile generation.<\/jats:p>","DOI":"10.1371\/journal.pone.0297720","type":"journal-article","created":{"date-parts":[[2024,9,11]],"date-time":"2024-09-11T17:34:38Z","timestamp":1726076078000},"page":"e0297720","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":3,"title":["Effects of birth weight on body composition, physical fitness, and sarcopenia assessments in young Japanese 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