Changes in Self-Reported Health and Psychosocial Outcomes in Older Adults Enrolled in Sedentary Behavior Intervention Study

Theresa E Matson, Melissa L Anderson, Anne D Renz, Mikael Anne Greenwood-Hickman, Jennifer B McClure, Dori E Rosenberg
American Journal of Health Promotion: AJHP 2019 April 7, : 890117119841405

PURPOSE: To estimate changes in self-reported health and psychosocial factors associated with a 12-week sedentary behavior intervention for older adults.

DESIGN: Exploratory secondary analysis of pilot randomized controlled trial.

SETTING: Kaiser Permanente Washington.

SUBJECTS: Sixty adults aged 60 to 89 with body mass index ≥30 kg/m2 .

INTERVENTION: Participants were randomized to the I-STAND intervention or control group. I-STAND involved 6 coaching sessions, a study workbook, Jawbone UP activity tracker to prompt breaks from sitting, and activPAL feedback on objective sitting time.

MEASURES: At baseline and 12-week follow-up, participants completed a survey with validated measures of self-reported health outcomes (depression, stress, memory/concentration, sleep, pain, ability to do daily activities, energy, and quality of life) and modified scales measuring psychosocial factors (perceived benefits/barriers, social support, self-efficacy, and sedentary habit strength) regarding sedentary behavior.

ANALYSIS: Generalized linear models assessed associations between group assignment and change in each self-reported health and psychosocial score, adjusting for baseline scores.

RESULTS: I-STAND participants demonstrated improvements in self-efficacy (β = 0.35, 95% confidence interval [CI]: 0.10 to 0.60) and reduced habit strength (β= -0.23, 95% CI: -0.42 to -0.04) compared to control participants. There were no significant differences in self-reported health outcomes, although power was limited in this exploratory analysis.

CONCLUSION: A sedentary behavior reduction intervention for older adults resulted in improvements for some psychosocial factors. Health outcomes may require longer than 12 weeks to observe improvements.

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