title: Love hurts: the influence of social relations on exercise self-efficacy for older adults with osteoarthritis.
abstract: Exercise self-efficacy is a powerful predictor of physical activity behavior, which enhances health and well-being for older adults. Social relations have been proposed as influential precursors for exercise self-efficacy. In a longitudinal study of 160 older adults with osteoarthritis (76.9% women), the authors found that social support (but not social strain) significantly predicted exercise self-efficacy in a structural equation model examining cross-sectional data: chi(2) (178, N = 160) = 264.57, p < .01; RMSEA = .06; CFI = .92; TLI = .90. When data were examined longitudinally, however, social strain (but not social support) significantly predicted lower exercise self-efficacy 1 year later: Xi(2) (233, N = 160) = 288.64, p < .01; RMSEA = .04; CFI = .96; TLI = .95. Results support the negativity effect, suggesting that social strain might be the more potent aspect of social relations and should be the target of interventions.
authors.affiliation: Psychology Dept., Brandeis University, Waltham, MA 02454, USA.
authors.forename: Kelly A
authors.initials: KA
authors.lastname: Cotter
authors.forename: Aurora M
authors.initials: AM
authors.lastname: Sherman
mesh_terms: D000223:Adaptation, Psychological; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D003430:Cross-Sectional Studies; D015444:Exercise / Q000502:physiology / Q000523:psychology*; D005260:Female; D015438:Health Behavior; D006801:Humans; D007398:Interpersonal Relations; D008137:Longitudinal Studies; D008149:Love; D008297:Male; D008875:Middle Aged; D009043:Motor Activity / Q000502:physiology*; D010003:Osteoarthritis / Q000453:epidemiology / Q000523:psychology* / Q000628:therapy; D011581:Psychological Tests; D011594:Psychometrics; D020377:Self Efficacy; D012944:Social Support; D014481:United States / Q000453:epidemiology