The proposed study aims to evaluate if improving sleep could enhance the intensive lifestyle intervention for improving weight loss and glycemic control in prediabetic individuals who have insomnia with short sleep duration. A cognitive behavioral intervention for insomnia with adjustments aimed at increasing sleep duration (CBT-Sleep) will be used for this study.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
36
This intervention is an abbreviated version of the Diabetes Prevention Program, which has been shown to be effective in reducing the risk of developing type 2 diabetes.
This intervention will consist of the same 8 sessions of ILI with additions of sleep components in each session. The additional sleep components will include (a) psychoeducation about the importance of sleep in weight control and glycemic control, (b) sleep hygiene, (c) stimulus control, (d) modifying maladaptive beliefs about sleep, (e) and, setting individualized sleep schedule and reviewing sleep schedule.
Queen Mary Hpspital
Hong Kong, Hong Kong
The University of Hong Kong
Hong Kong, Hong Kong
Changes in HbA1C (%)
Time frame: 12 weeks from baseline
Changes in fasting glucose concentration (mg/dl)
Time frame: 12 weeks from baseline
Changes in 2-hr oral glucose tolerance (mg/dl)
Time frame: 12 weeks from baseline
Changes in insomnia symptom severity
measured by the Insomnia Severity Index. The score ranges from 0 to 28. The higher the score, the greater the symptom severity
Time frame: 12 weeks from baseline
Changes in subjective sleep onset latency
measured by daily sleep diary
Time frame: 12 weeks from baseline
Changes in subjective wake after sleep onset
measured by daily sleep diary
Time frame: 12 weeks from baseline
Changes in subjective total sleep time
measured by daily sleep diary
Time frame: 12 weeks from baseline
Changes in objective sleep onset latency
measured by actigraphy
Time frame: 12 weeks from baseline
Changes in objective wake after sleep onset
measured by actigraphy
Time frame: 12 weeks from baseline
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Changes in objective total sleep time
measured by actigraphy
Time frame: 12 weeks from baseline
Changes in body weight (kg)
Time frame: 12 weeks from baseline
Changes in psychological distress
the validated Chinese version of the Depression Anxiety Stress Scales (DASS-21)will be used. The score ranges from 0 to 63. The higher the score, the greater the distress
Time frame: 12 weeks from baseline
Changes in quality of life
the validated Chinese version of the Satisfaction with Life Scale will be used to measure quality of life. The score ranges from 5 to 35. The higher the score, the greater the quality of life
Time frame: 12 weeks from baseline
Changes in food craving
Measured by the Food Craving Questionnaire. The score ranges from 10 to 70. The higher the score, the greater the food craving
Time frame: 12 weeks from baseline
Changes in acceptance of physical activity
Measured by the Physical Activity Acceptance and Action Questionnaire. The score ranges from 10 to 70. The higher the score, the greater acceptance.
Time frame: 12 weeks from baseline
Changes in weight loss self efficacy
Measured by the Weight Loss Self Efficacy Scale. The score ranges from 0 to 100%. The higher the percentage, the greater the self-efficacy
Time frame: 12 weeks from baseline
Changes in weight control strategies
Measured by the Weight Control Strategy Scale. The score ranges from 0 to 120. The higher the percentage, the more effective strategies are used
Time frame: 12 weeks from baseline
Changes in dietary composition
Measured by the Chinese version of the 7-day Food Frequency Questionnaire
Time frame: 12 weeks from baseline