NCT02923674

Empowered With Movement to Prevent Obesity and Weight Regain

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 183 (actual)
• Sponsor: Wake Forest University Health Sciences · Academic / Other
• Sex: All
• Age: 65 Years – 85 Years
• Healthy volunteers: Not accepted

Summary

This study will help determine the appropriate type, amount and intensity of physical activity most beneficial for preventing weight regain after weight loss in older adults.

Detailed description

The investigators will use a 3-group design in 180 older (65-85 years), obese (BMI=30-45 kg/m2), sedentary men and women, all of whom will undergo a 9-month Weight Loss (WL) intervention (6-mo intensive phase and 3-mo reduced contact phase), followed by a 9-month self-managed follow-up phase with minimal contact, to test our overall hypothesis that intervening on Sedentary Behavior (SitLess) will enhance long-term Weight Loss in this age group. The diet element of the intervention is identical across groups, but groups differ by activity intervention: 1) structured, moderate-intensity, aerobic exercise (EX) (WL+EX); 2) intervening on SB throughout the day (WL+SitLess); or 3) (WL+EX+SitLess).

Conditions

• Obesity
• Weight Loss
• Sedentary Lifestyle

Interventions

Type	Name	Description
BEHAVIORAL	Weight loss	All participants will undergo a dietary WL intervention designed to elicit behavioral changes leading to decreased caloric intake sufficient to yield a \~10% loss of initial body mass. The WL intervention includes nutrition education, state-of-the-art behavioral methods for promoting WL, and strategies that optimize self-regulation.
BEHAVIORAL	Exercise	Perform structured aerobic exercise (mostly treadmill walking) of moderate-intensity for 4-5 days/week, progressing to a duration of 200 min/week. Participants will attend center-based sessions for at least 3 days/week during the first intensive 6-month phase and at least one day/week during the second 3-month transition phase (months 7-9), with recording of home-based exercise for the other 2-4 days/week.
BEHAVIORAL	Sitless	Encouraged and taught to reduce sedentary behavior (SB) during waking hours. The SitLess treatment targets increases in postural shifts and light, spontaneous physical activity (SPA) (MET level \<3).

Timeline

• Start date: 2016-12-06
• Primary completion: 2020-10-01
• Completion: 2020-10-01
• First posted: 2016-10-04
• Last updated: 2022-03-23
• Results posted: 2022-03-23

Locations

1 site across 1 country: United States