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Consistency in exercise timing and weekly walking participation among previously sedentary women
- Presented on May 21, 2014
Purpose: Habit formation offers an innovative technique for promoting long-term behavior change and consistency in the timing of a target behavior is thought to be important to initiating and learning a new habit. The aim of this analysis was to assess whether consistency of exercise timing was associated with overall exercise participation during an eight week walking intervention.
Methods: Previously sedentary, pre-menopausal women (n=52, 37.6±6.2y, 84.6% Caucasian) enrolled in an eight week walking intervention to accumulate at least 150 minutes of moderate-intensity walking weekly measured continuously by Actigraph GT3x+ monitors. Women were stratified into 4 equal groups based on percentage of brisk walking bouts (≥ 20 minutes duration) performed in the participant’s most common walking period (Morning, Midday, Afternoon, and Evening).
Results: Participants performed 62.8% of their walking bouts at a consistent time of day with quartile groupings ranging from a low of 35.8-50.9% in Group 1 to a high of 74.0-96.3% in Group 4. Evenings were the most common walking period for 69.2% of women. Average walking duration differed by consistency in daily walking time but not in a dose-response manner (154.0±29.8 min, 177.9±31.5 min, 160.3±25.0 min, 174.7±36.3 min across groups 1-4, respectively; p=0.17).
Conclusions: Consistency of exercise timing appears to have a small effect on weekly walking averages but should be further explored in studies that (a) have greater variations in walking totals and (b) do not provide financial incentives for compliance.
ISBNPA 2014 Annual Conference