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Exercise and time of day: Influence on hunger and caloric intake among overweight/obese adults

Year: 2014
Type: dissertation
Study design: Clinical Trial
Abstract: The purpose of this study was to determine whether or not the time of day at which exercise was performed, morning compared to evening, influences acute daily caloric intake and hunger in overweight/obese sedentary adults. 8 overweight/obese (Age: 40 ± 4 yrs, Height: 170 ± 4 cm, Weight: 85.7 ± 6.4 kg, BMI: 29 ± 2 kg/m2) sedentary adults completed 3 trials: control, morning, evening in a randomly counterbalanced cross over design. Caloric intake was assessed over three 4-day periods with subjects consuming ad libitum diets. Hunger was measured 15 minutes before exercise and 15 and 30 minutes following exercise. Exercise was performed on stationary bicycle ergometers at moderate intensity (40-60% of HHR) for 40 minutes. Average daily caloric intake was not different between morning and evening exercise (p = 0.99). However, average daily caloric intake during the exercise trials was greater than the control week (p = 0.018). Both morning and evening exercise sessions increased hunger but there was no differential between the two (p = 0.42). These data demonstrate that exercise performed at different times of the day, i.e. in the morning or evening, does not affect average daily caloric intake or hunger in overweight/obese sedentary adults, though more research needs to be conducted with a larger sample size.
Language: English
Open Access status: green
OpenAlex ID: W2439202331
Cites: 60
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Related to: 10