Jeff Vallance, Susanne L. Lesniak, Lisa J. Belanger and Kerry S. Courneya
We report the development and assessment of a physical activity (PA) guidebook called Step Up to the Challenge that is being used to support a PA behavior change intervention in a randomized trial examining PA and disease-free survival in colon cancer survivors.
Content for the PA guidebook was constructed based on the Theory of Planned Behavior (TPB). Expert judges (N = 51) included oncologists, rehabilitation practitioners, colon cancer survivors, and TPB researchers. All expert judges completed the Maine Area Health Education Center checklist for evaluating written health information. A subset of TPB expert judges (n = 11) also assessed the degree of match between the guidebook content and TPB constructs.
Expert judges indicated that the PA guidebook achieved desirable attributes for organization, writing style, appearance, appeal, feasibility, and appropriateness. For the TPB assessment, all mean item-content relevance ratings indicated at least a “very good match” between the PA guidebook content and the TPB constructs.
Our guidebook successfully targets the TPB constructs known to influence PA behavior change and contains suitable and appropriate written health information. This guidebook will be an integral component of the behavioral support program designed to determine the effects of PA on disease-free survival in colon cancer survivors.
Danielle M. Thiel, Fatima Al Sayah, Jeff Vallance, Steven T. Johnson and Jeffrey A. Johnson
The objective was to investigate the longitudinal relationship between physical activity and health-related quality of life (HRQL) in adults with type 2 diabetes.
Data were from a prospective cohort of adults with type 2 diabetes. Weekly moderate-to-vigorous physical activity (MVPA) was reported using the Godin Leisure-Time Physical Activity Questionnaire, and HRQL was reported using the SF-12 and 5-level EQ-5D. Participants were categorized based on current weekly MVPA recommendations. Multivariable linear regression was used to explore associations between MVPA and HRQL, and multinomial logistic regression was used to assess the direction of change in HRQL after 1 year.
Mean age of participants (N = 1948) was 64.5 ± 10.8 years and 45% were female. Participants reported a mean of 84.1 ± 172.4 min of MVPA/week, and 21% (n = 416) met weekly MVPA recommendations. MVPA was associated with differences in the physical functioning (b = 5.42; P < .001), general health (b = 2.45; P = .037), and vitality (b = 2.83; P = .016) SF-12 dimensions. Participants who met recommendations were less likely to report a decline (vs. no change) in EQ-5D index score (OR = 0.75; 95% CI [0.57, 0.99]), and SF-12 physical component summary (OR = 0.67; 95% CI [0.50, 0.90]), compared with participants not meeting recommendations.
Participants who met weekly MVPA recommendations reported better physical functioning and were more likely to maintain their physical and overall HRQL over time.