title: Relative strength as a determinant of mobility in elders 67-84 years of age. a nuage study: nutrition as a determinant of successful aging.
abstract: This cross-sectional study proposes two relative strength indexes in order to evaluate the risks of lower mobility in healthy older adults: 1) handgrip strength on body mass index and 2) quadriceps strength on body weight. Nine hundred and four men and women aged between 67-84 years old were tested for body composition, muscle strength and mobility function. Individuals in the lowest and middle tertiles of relative handgrip strength were respectively 2.2 (1.3-3.7) and 4.4 (2.6-7.6) more likely to have a lower mobility score. As for relative quadriceps strength, odd ratios for lowest and middle tertiles were respectively 2.8 (1.6-4.9) and 6.9 (3.9-12.1). Relative strength indexes, either using handgrip strength or quadriceps strength, are convenient to use in large scale studies and clinical practice.
authors.affiliation: Health and Social Services Centre - University Institute of Geriatrics of Sherbrooke. Faculty of Physical Education and Sports, University of Sherbrooke, Sherbrooke, Québec, Canada.
authors.forename: S
authors.initials: S
authors.lastname: Choquette
authors.forename: D R
authors.initials: DR
authors.lastname: Bouchard
authors.forename: C Y
authors.initials: CY
authors.lastname: Doyon
authors.forename: M
authors.initials: M
authors.lastname: Sénéchal
authors.forename: M
authors.initials: M
authors.lastname: Brochu
authors.forename: I J
authors.initials: IJ
authors.lastname: Dionne
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology*; D015992:Body Mass Index; D003430:Cross-Sectional Studies; D005260:Female; D015577:Geriatric Assessment / Q000379:methods*; D018737:Hand Strength; D006801:Humans; D008297:Male; D051346:Mobility Limitation; D053580:Muscle Strength; D016017:Odds Ratio; D052097:Quadriceps Muscle / Q000502:physiology; D012306:Risk