TY - JOUR
T1 - Examining Potential Psychosocial Mediators in a Physical Activity Intervention for Older Adults
AU - McMahon, Siobhan K.
AU - Lewis, Beth
AU - Oakes, J. Michael
AU - Wyman, Jean F.
AU - Guan, Weihua
AU - Rothman, Alexander J.
N1 - Publisher Copyright:
© The Author(s) 2019.
PY - 2020/8/1
Y1 - 2020/8/1
N2 - The purpose of this study was to examine psychosocial constructs targeted as potential mediators in a prior physical activity (PA) intervention study. This secondary analysis used data from 102 older adults randomized to one of four conditions—within a 2 (Interpersonal Strategies: yes, no) x 2 (Intrapersonal Strategies: yes, no) factorial design. We tested intervention effects on social support, self-efficacy, self-regulation, and goal attainment, and whether these constructs mediated intervention effects on PA. Participants who received interventions with interpersonal strategies, compared to those who did not, increased their readiness (post-intervention), the self-regulation subscale of self-assessment, and goal attainment (post-intervention, 6-months). Participants who received interventions with intrapersonal strategies, compared to those who did not, increased their social support from family (post-intervention). There was no statistically significant mediation. To understand mechanisms through which interventions increase older adults’ PA and to improve intervention effectiveness, researchers should continue to examine potential psychosocial mediators. Clinical Trial Registry: NCT02433249.
AB - The purpose of this study was to examine psychosocial constructs targeted as potential mediators in a prior physical activity (PA) intervention study. This secondary analysis used data from 102 older adults randomized to one of four conditions—within a 2 (Interpersonal Strategies: yes, no) x 2 (Intrapersonal Strategies: yes, no) factorial design. We tested intervention effects on social support, self-efficacy, self-regulation, and goal attainment, and whether these constructs mediated intervention effects on PA. Participants who received interventions with interpersonal strategies, compared to those who did not, increased their readiness (post-intervention), the self-regulation subscale of self-assessment, and goal attainment (post-intervention, 6-months). Participants who received interventions with intrapersonal strategies, compared to those who did not, increased their social support from family (post-intervention). There was no statistically significant mediation. To understand mechanisms through which interventions increase older adults’ PA and to improve intervention effectiveness, researchers should continue to examine potential psychosocial mediators. Clinical Trial Registry: NCT02433249.
KW - older adults
KW - physical activity
KW - psychosocial mediators
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U2 - 10.1177/0193945919871697
DO - 10.1177/0193945919871697
M3 - Article
C2 - 31470769
AN - SCOPUS:85072083025
SN - 0193-9459
VL - 42
SP - 581
EP - 592
JO - Western Journal of Nursing Research
JF - Western Journal of Nursing Research
IS - 8
ER -