"Focusing on obtaining good sleep—seven to nine hours at night with a regular wake time along with waking refreshed and being alert throughout the day—may be an important behavior that helps people stick with their physical activity and dietary modification goals," said Christopher E. Kline, Ph.D., an associate professor in the department of health and human development at the University of Pittsburgh, in a press release about the study.
"A previous study of ours reported that better sleep health was associated with a significantly greater loss of body weight and fat among participants in a year-long, behavioral weight loss program," Kline noted, emphasizing the significant impact sleep quality has on successful weight loss and health interventions.
Researchers analyzed whether good sleep health was related to how well people followed various lifestyle modifications in a 12-month weight-loss program that included 125 adults with an average age of 50 years. All participants met criteria for overweight or obesity, according to their body mass index, highlighting a targeted demographic for the study.
Participants received a score of 'good' or 'poor' based on six measures of sleep: regularity, satisfaction, alertness, timing, efficiency, and duration. The average sleep health score was 4.5 out of 6, indicating an overall positive sleep quality despite variations among individuals.
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