April 1, 1998Medicine & Science in Sports & Exercise
Accuracy of self-reported exercise and the relationship with weight loss in overweight women
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Discussion
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Implication
Randomized trial compares self-reported versus measured exercise accuracy in overweight women, highlighting implications for weight loss success.
Key Points
- To evaluate the accuracy of self-reported exercise compared to objective measures and its impact on weight loss in overweight women.
- Fifty overweight females (BMI = 34.0 +/- 4.2 kg.m-2) participated in the study.
- Random assignment to long-bout (30-min session) or short-bout (three 10-min sessions) exercise conditions for 20 weeks.
- Participants wore a Tri-Trac accelerometer for 1 week to objectively measure exercise.
- Approximately 45% of women over-reported their exercise duration, consistent across both groups.
- Weight loss was significantly lower in women who over-reported exercise (6.3 +/- 3.6 kg) compared to those who under-reported (9.4 +/- 5.2 kg).
- The Tri-Trac accelerometer effectively differentiated between over- and under-reporters, with potential benefits for treatment strategies.
Cite This Study
Jakicic et al. (1998) studied this question.