This randomized controlled trial is comparing outcomes of customary Fit and Strong!, to Fit and Strong! Plus, an enhanced version of the program that incorporates weight management. We hypothesize that Fit and Strong! Plus participants will show improved diet behaviors at 2, 6, 12, and 18 months that will be accompanied by a significant 5% weight loss at 6 months and maintained to 18 months, compared to participants in customary Fit and Strong!.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
413
Fit and Strong! is a group exercise and self-management program that meets for 90 minutes, 3 days per week, for 8 weeks. Each 90 minute session consists of 60 minutes of multi-component physical activity (stretching/flexibility exercises, low-impact aerobics, and strength/resistance exercise) and 30 minutes of health education delivered from a structured curriculum. The health education topics build self-efficacy for managing arthritis through physical activity.
The intervention consists of the traditional Fit and Strong! intervention (see previous description), but the health education component has been revised to focus on diet and weight management in addition to physical activity and arthritis.
University of Illinois at Chicago
Chicago, Illinois, United States
Dietary Intake
The Healthy Eating Index 2010 (HEI-2010) measures diet quality based on the Dietary Guidelines for Americans. HEI-2010 total scores range from 0 to 100 points, with a higher score signifying superior diet quality.
Time frame: 2, 6, 12, and 18 months
Body Weight
A change in body weight (kilograms) measured using a calibrated digital scale (Tanita).
Time frame: 2, 6, 12, and 18 months
Physical Activity Engagement
A change in Physical activity was assessed using the Physical Activity Scale for the Elderly (PASE). Scored on a scale of 0 - 400, a higher score indicates greater PA.
Time frame: 2, 6, 12, and 18 months
Lower Extremity Pain
A change in Osteoarthritis "lower extremity pain" symptoms were measured using the Western Ontario and McMaster Universities Arthritis Index (WOMAC). The WOMAC is a self-report instrument that has been well-validated and used widely with individuals with osteoarthritis. Pain (5 items) was rated on a Likert scale ranging from 0 (none) to four. Higher scores indicate more severe osteoarthritis symptoms, scores range from 0-20.
Time frame: Baseline, 2, 6, 12, and 18 months
Lower Extremity Stiffness
A change in Osteoarthritis "lower extremity stiffness" symptoms were measured using the Western Ontario and McMaster Universities Arthritis Index (WOMAC). The WOMAC is a self-report instrument that has been well-validated and used widely with individuals with osteoarthritis. Stiffness (2 items) was rated on a Likert scale ranging from 0 (none) to four. Higher scores indicate more severe osteoarthritis symptoms, scores range from 0 to 8.
Time frame: Baseline, 2, 6, 12, and 18 months
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Lower Extremity Physical Function
A change in Osteoarthritis "lower extremity physical function" symptoms were measured using the Western Ontario and McMaster Universities Arthritis Index (WOMAC). The WOMAC is a self-report instrument that has been well-validated and used widely with individuals with osteoarthritis. Lower extremity physical function (17 items) was rated on a Likert scale ranging from 0 (none) to four. Higher scores indicate more severe osteoarthritis symptoms, scores range from 0 to 68.
Time frame: Baseline, 2, 6, 12, and 18 months
Lower Extremity Muscle Strength
A change in Lower Extremity Muscle Strength was measured by a Sit-Stand test that measures the number of full stands from a seated position a participant can complete in 30 s with arms folded across the chest. A higher score reflects better performance.
Time frame: Baseline, 2, 6, 12, and 18 months
Physical Endurance
A change in Physical Endurance was measured by the 6-minute Distance Walk, which is a self-paced timed test of the total distance a person can walk in six minutes. A higher score reflects better performance.
Time frame: Baseline, 2, 6, 12, and 18 months