title: Impact of back muscle strength and aging on locomotive syndrome in community living Japanese women.
abstract: The Japanese Orthopaedic Association has proposed the term locomotive syndrome (LS) to designate a condition of individuals in high-risk groups with musculoskeletal disease who are highly likely to require nursing care. This study investigates the influence of spinal factors on LS in Japanese females. A total of 187 women > or =50 years old were enrolled in the study. Those answering yes to least one of the 7 categories in the self-assessment checklist for LS were defined as having LS. We evaluated lateral lumbar radiographs, sagittal parameters, sagittal balance using the spinal inclination angle (SIA) as an index, spinal range of motion (ROM) as determined with SpinalMouse, back muscle strength (BMS), and body mass index (BMI). Age, BMI, BMS, SIA, sacral slope angle (SSA), and lumbar spinal ROM showed significant correlations with LS. Multiple logistic regression analysis indicated that an increase in age (OR 1.054, p<0.05) and a decrease in BMS (OR 0.968, p<0.01) were significantly associated with LS. Age had significant negative correlations with BMS, SSA, thoracic and lumbar spinal ROM, and it had positive correlations with BMI, SIA, and lumbar kyphosis. BMS had significant negative correlations with age, SIA, thoracic and lumbar kyphosis, and it had positive correlations with SSA, lumbar and total spinal ROM. An increase in age and a decrease in BMS may be the most important risk factors for LS in Japanese women. Back muscle strengthening and spinal ROM exercises could be useful for improving the status of an individual suffering from LS.
authors.affiliation: Department of Orthopaedic Surgery, Nagoya Daiichi Red Cross Hospital 3-35, Michishita-cho, Nakamura-ku, Nagoya, 453-8511, Japan.
authors.forename: Kenichi
authors.initials: K
authors.lastname: Hirano
authors.forename: Shiro
authors.initials: S
authors.lastname: Imagama
authors.forename: Yukiharu
authors.initials: Y
authors.lastname: Hasegawa
authors.forename: Norimitsu
authors.initials: N
authors.lastname: Wakao
authors.forename: Akio
authors.initials: A
authors.lastname: Muramoto
authors.forename: Naoki
authors.initials: N
authors.lastname: Ishiguro
mesh_terms: D000203:Activities of Daily Living; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging; D044466:Asian People; D001415:Back; D001696:Biomechanical Phenomena; D057189:Checklist; D005260:Female; D006801:Humans; D057187:Independent Living; D007564:Japan; D008124:Locomotion; D016015:Logistic Models; D008875:Middle Aged; D015999:Multivariate Analysis; D053580:Muscle Strength; D018482:Muscle, Skeletal / Q000503:physiopathology*; D009140:Musculoskeletal Diseases / Q000145:classification / Q000175:diagnosis / Q000208:ethnology / Q000503:physiopathology*; D016017:Odds Ratio; D004856:Postural Balance; D016059:Range of Motion, Articular; D012307:Risk Factors; D012737:Sex Factors; D013131:Spine / Q000503:physiopathology; D011795:Surveys and Questionnaires; D013577:Syndrome
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