According to the Standards of Medical Care in Diabetes by the American Diabetes Association, people with diabetes should aim for 30 minutes of moderate-to-vigorous intensity aerobic exercise at least 5 days a week or a total of 150 minutes per week and doing some type of strength training at least 2 times per week in addition to aerobic activity. However, the effects of different forms and intervals of exercise on glycemic control are not well established. Exercise increases the risk of hypoglycemia both during and several hours after exercise. There are several strategies to avoid hypoglycemia during exercise. The most common strategy is to reduce insulin and to take carbohydrates before the exercise starts. Short-acting insulin analogs have a duration of approximately four hours, thus reductions need to be planned and done well in advance before the exercise starts. Since different types of exercise (aerobic, strength training or high intensity training) affect blood glucose in different ways and most exercise sessions include a combination of the types, these strategies are often associated with difficulties in obtaining stable blood glucose. The American Diabetes Association guidelines do not explicitly recommend a daily workout routine but outline recommendations for weekly amounts of exercise as there is currently insufficient evidence on the ideal timing, frequency and duration of exercise for preventing hypoglycemia. Hypothesis: in people with type 1 diabetes, time in hypoglycemia can be reduced if exercise is performed daily over five consecutive days compared to the same total amount of exercise performed at 2 days with at least 2 days interval. Aim: to evaluate the impact of the same total amount of exercise split into either five consecutive sessions or two sessions with at least 2 days in between on percentage of time spent in hypoglycemia and other glycemic parameters in people with type 1 diabetes.
The participants will go through two interventions: Exercise one session per day for five consecutive days and Exercise one session per day for two days within five days. The exercise session will start with anaerobic (push-ups, back-curls, sit-ups, triceps-dips and jumps) exercise followed by aerobic exercise (moderate intensity of running, walking or cycling). Between the two intervention periods, there will be a wash-out period. Intervention: 'Exercise one session per day for five consecutive days'. Duration per session: Anaerobic: 4 min, Aerobic: 30 min. Sessions per intervention period: Five. Total duration per intervention period: Anaerobic: 20 min. Aerobic: 150 min. Total: 170 min Intervention:Exercise one session per day for two days within five days. Duration per session: Anaerobe: 10 min, Aerobe: 75 min. Sessions per intervention period: 2. Total duration per intervention period: Anaerob: 20 min Aerobe: 150 min Total: 170 min
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
26
Period 1: 5 exercise sessions on 5 consecutive days (4 min anaerobic exercise and 30 min aerobic exercise per session) Period 2: 2 exercise sessions within a 5-day period (10 min anaerobic exercise and 75 min aerobic exercise per session)
Period 1: 2 exercise sessions within a 5-day period (10 min anaerobic exercise and 75 min aerobic exercise per session) Period 2: 5 exercise sessions on 5 consecutive days (4 min anaerobic exercise and 30 min aerobic exercise per session)
Steno Diabetes Center Copenhagen
Gentofte Municipality, Denmark
Percentage of time spent in the hypoglycemic range (CGM <3.9 mmol/l)
Intention-to-treat analysis (ITT).
Time frame: The primary intervention period from 06:00h study day 1 - 06:00h study day 6 (ITT)
Percentage of time spent in the hypoglycemic range (CGM <3.9 mmol/l)
Per protocol analysis (PP)
Time frame: Primary intervention period from 06:00h study day 1 - 06:00h study day 6 PP
Percentage of time spent in the alert and clinical hypoglycemic range
Level 1 (alert): CGM or SMBG value of 3.0-3.9 mmol/l with or without symptoms. Level 2 (clinical): CGM or SMBG value of \< 3.0 mmol/l with or without symptoms. Outcome is compared between the two intervention periods in a per protocol analysis (PP) and intention-to-treat analysis (ITT)
Time frame: Study day 1: The day when the first exercise session is performed and registered.
Percentage of time spent in the alert and clinical hypoglycemic range
Level 1 (alert): CGM or SMBG value of 3.0-3.9 mmol/l with or without symptoms. Level 2 (clinical): CGM or SMBG value of \< 3.0 mmol/l with or without symptoms. Outcome is also compared between the two intervention periods in a per protocol analysis (PP) and intention-to-treat analysis (ITT)
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Percentage of time spent in the alert and clinical hypoglycemic range
Level 1 (alert): CGM or SMBG value of 3.0-3.9 mmol/l with or without symptoms. Level 2 (clinical): CGM or SMBG value of \< 3.0 mmol/l with or without symptoms. Outcome is also compared between the two intervention periods in a per protocol analysis (PP) and intention-to-treat analysis (ITT)
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days).
Percentage of time spent in the alert and clinical hypoglycemic range
Level 1 (alert): CGM or SMBG value of 3.0-3.9 mmol/l with or without symptoms. Level 2 (clinical): CGM or SMBG value of \< 3.0 mmol/l with or without symptoms. Outcome is also compared between the two intervention periods in a per protocol analysis (PP) and intention-to-treat analysis (ITT)
Time frame: Day time: 06:00-22:00h from during study day 1 to study day 6.
Percentage of time spent in the alert and clinical hypoglycemic range
Level 1 (alert): CGM or SMBG value of 3.0-3.9 mmol/l with or without symptoms. Level 2 (clinical): CGM or SMBG value of \< 3.0 mmol/l with or without symptoms. Outcome is compared between the two intervention periods in a per protocol analysis (PP) and intention-to-treat analysis (ITT)
Time frame: Night time: 22:00-06:00h from during study day 1 to study day 6.
Percentage of time spent in the alert and clinical hypoglycemic range
Level 1 (alert): CGM or SMBG value of 3.0-3.9 mmol/l with or without symptoms. Level 2 (clinical): CGM or SMBG value of \< 3.0 mmol/l with or without symptoms. Outcome is compared between the two intervention periods in a per protocol analysis (PP) and intention-to-treat analysis (ITT)
Time frame: The time the participant has recorded start and end of exercise session during study day 1 to study day 6
Number of alert and clinical hypoglycemia events
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Number of alert and clinical hypoglycemia events
Per protocol analysis and intention-to-treat analysis
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days).
Number of alert and clinical hypoglycemia events
Per protocol analysis and intention-to-treat analysis
Time frame: Day time: 06:00-22:00h during study day 1 - study day 6
Number of alert and clinical hypoglycemia events
Per protocol analysis and intention-to-treat analysis
Time frame: Night time: 22:00-06:00h during study day 1 - study day 6
Number of alert and clinical hypoglycemia events
Per protocol analysis and intention-to-treat analysis
Time frame: Exercise time: The time the participant has recorded start and end of exercise session during study day 1 study day 6
Number of severe hypoglycemia events during
Per protocol analysis and intention-to-treat analysis
Time frame: Study day 1: The day when the first exercise session is performed and registered
Number of severe hypoglycemia events
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Number of severe hypoglycemia events
Per protocol analysis and intention-to-treat analysis
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days).
Number of severe hypoglycemia events
Per protocol analysis and intention-to-treat analysis
Time frame: Day time: 06:00-22:00h during study day 1 - study day 6
Number of severe hypoglycemia events
Per protocol analysis and intention-to-treat analysis
Time frame: Night time: 22:00-06:00h during study day 1 - study day 6
Number of severe hypoglycemia events
Per protocol analysis and intention-to-treat analysis
Time frame: Exercise time: The time the participant has recorded start and end of exercise session during study day 1 - study day 6
Percentage of time in range (3.9-10 mmol/l)
Per protocol analysis and intention-to-treat analysis
Time frame: Study day 1: The day when the first exercise session is performed and registered
Percentage of time in range (3.9-10 mmol/l)
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Percentage of time in range (3.9-10 mmol/l)
Per protocol analysis and intention-to-treat analysis
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days).
Percentage of time in range (3.9-10 mmol/l)
Per protocol analysis and intention-to-treat analysis
Time frame: Day time: 06:00-22:00h during study day 1-study day 6
Percentage of time in range (3.9-10 mmol/l)
Per protocol analysis and intention-to-treat analysis
Time frame: Night time: 22:00-06:00h during study day 1 -study day 6
Percentage of time in range (3.9-10 mmol/l)
Per protocol analysis and intention-to-treat analysis
Time frame: Exercise time: The time the participant has recorded start and end of exercise session during study day 1 -study day 6
Percentage of time in good range (3.9-7.8 mmol/l)
Per protocol analysis and intention-to-treat analysis
Time frame: Study day 1: The day when the first exercise session is performed and registered.
Percentage of time in good range (3.9-7.8 mmol/l)
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Percentage of time in good range (3.9-7.8 mmol/l)
Per protocol analysis and intention-to-treat analysis
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days).
Percentage of time in good range (3.9-7.8 mmol/l)
Per protocol analysis and intention-to-treat analysis
Time frame: Day time: 06:00-22:00h and Night time: 22:00-06:00h during study day 1-study day 6
Percentage of time in good range (3.9-7.8 mmol/l)
Per protocol analysis and intention-to-treat analysis
Time frame: Exercise time: The time the participant has recorded start and end of exercise session during study day 1-study day 6
Percentage of time in hyperglycemia (>10 mmol/l)
Per protocol analysis and intention-to-treat analysis
Time frame: Study day 1: The day when the first exercise session is performed and registered.
Percentage of time in hyperglycemia (>10 mmol/l)
Per protocol analysis and intention-to-treat analysis
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days).
Percentage of time in hyperglycemia (>10 mmol/l)
Per protocol analysis and intention-to-treat analysis
Time frame: Day time: 06:00-22:00h during study day 1-study day 6
Percentage of time in hyperglycemia (>10 mmol/l)
Per protocol analysis and intention-to-treat analysis
Time frame: Night time: 22:00-06:00h during study day 1 -study day 6
Percentage of time in hyperglycemia (>10 mmol/l)
Per protocol analysis and intention-to-treat analysis
Time frame: Exercise time: The time the participant has recorded start and end of exercise session during study day 1-study day 6
Percentage of time in hyperglycemia (>10 mmol/l) during all the predefined time blocks. Per protocol analysis and intention-to-treat analysis
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Glycemic variability measured as standard deviation (SD), coefficient of variation (CV) and low and high blood glucose index (LBGI/HBGI) during all the predefined time blocks in the intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Study day 1: The day when the first exercise session is performed and registered.
Glycemic variability measured as standard deviation (SD), coefficient of variation (CV) and low and high blood glucose index (LBGI/HBGI) during all the predefined time blocks in the intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Glycemic variability measured as standard deviation (SD), coefficient of variation (CV) and low and high blood glucose index (LBGI/HBGI) during all the predefined time blocks in the intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Day time: 06:00-22:00h during study day 1-study day 6
Glycemic variability measured as standard deviation (SD), coefficient of variation (CV) and low and high blood glucose index (LBGI/HBGI) during all the predefined time blocks in the intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Night time: 22:00-06:00h during study day 1 -study day 6
Glycemic variability measured as standard deviation (SD), coefficient of variation (CV) and low and high blood glucose index (LBGI/HBGI) during all the predefined time blocks in the intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Exercise time: The time the participant has recorded start and end of exercise session during study day 1 -study day 6
Mean CGM glucose level du during all the predefined time blocks in the intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Study day 1: The day when the first exercise session is performed and registered.
Mean CGM glucose level du during all the predefined time blocks in the intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Mean CGM glucose level du during all the predefined time blocks in the intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days).
Mean CGM glucose level du during all the predefined time blocks in the intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Day time: 06:00-22:00h during study day 1-study day 6
Mean CGM glucose level du during all the predefined time blocks in the intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Night time: 22:00-06:00h during study day 1 -study day 6
Mean CGM glucose level du during all the predefined time blocks in the intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Exercise time: The time the participant has recorded start and end of exercise session during study day 1 -study day 6
CGM estimated eA1c during the primary intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: The Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Total carbohydrate intake registered from the insulin pumps during all the predefined time blocks in the intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Study day 1: The day when the first exercise session is performed and registered.
Total carbohydrate intake registered from the insulin pumps during all the predefined time blocks in the intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Total carbohydrate intake registered from the insulin pumps during all the predefined time blocks in the intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days).
Total carbohydrate intake registered from the insulin pumps during all the predefined time blocks in the intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Day time: 06:00-22:00h during study day 1-study day 6
Total carbohydrate intake registered from the insulin pumps during all the predefined time blocks in the intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Night time: 22:00-06:00h during study day 1 -study day 6
Total carbohydrate intake registered from the insulin pumps during all the predefined time blocks in the intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Exercise time: The time the participant has recorded start and end of exercise session during study day 1 -study day 6
Carbohydrate interventions for prevention and treatment of hypoglycemia registered by the participants in the booklet for the primary and total intervention period
Per protocol analysis and intention-to-treat analysis c) Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days).
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Carbohydrate interventions for prevention and treatment of hypoglycemia registered by the participants in the booklet for the primary and total intervention period
Per protocol analysis and intention-to-treat analysis c) Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days).
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days)
Change in total daily insulin dose (basal and bolus insulin) of 7 days prior to screening day and during the primary and total intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Change in total daily insulin dose (basal and bolus insulin) of 7 days prior to screening day and during the primary and total intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days).
Actigraph wrist wear time during all predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Actigraph wrist wear time during all predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days).
Actigraph wrist wear time during all predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Day time: 06:00-22:00h during study day 1-study day 6
Actigraph wrist wear time during all predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Night time: 22:00-06:00h during study day 1 -study day 6
Actigraph wrist wear time during all predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Exercise time: The time the participant has recorded start and end of exercise session during study day 1 -study day 6
Physical activity energy expenditure (accelerometer and heart rate based) measured as kcal during all predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Physical activity energy expenditure (accelerometer and heart rate based) measured as kcal during all predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days).
Physical activity energy expenditure (accelerometer and heart rate based) measured as kcal during all predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Day time: 06:00-22:00h during study day 1-study day 6
Physical activity energy expenditure (accelerometer and heart rate based) measured as kcal during all predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Night time: 22:00-06:00h during study day 1 -study day 6
Physical activity energy expenditure (accelerometer and heart rate based) measured as kcal during all predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Exercise time: The time the participant has recorded start and end of exercise session during study day 1 -study day 6
Metabolic expenditure rate for the primary intervention periods
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Metabolic expenditure rate for the primary intervention periods
Per protocol analysis and intention-to-treat analysis
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days).
Number of exercise (light to vigorous) and sedentary bouts in the primary intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Number of exercise (light to vigorous) and sedentary bouts in the primary intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days)
Time in sedentary during predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Time in sedentary during predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days).
Time in sedentary during predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Day time: 06:00-22:00h during study day 1-study day 6
Time in sedentary during predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Night time: 22:00-06:00h during study day 1 -study day 6
Time in sedentary during predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Exercise time: The time the participant has recorded start and end of exercise session during study day 1 -study day 6
Time in light physical activity during predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Time in light physical activity during predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days).
Time in light physical activity during predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Day time: 06:00-22:00h during study day 1-study day 6
Time in light physical activity during predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Exercise time: The time the participant has recorded start and end of exercise session during study day 1 -study day 6
Time in moderate physical activity during predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Time in moderate physical activity during predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days).
Time in moderate physical activity during predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Day time: 06:00-22:00h during study day 1-study day 6
Time in moderate physical activity during predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Exercise time: The time the participant has recorded start and end of exercise session during study day 1 -study day 6
Time in vigorous physical activity during predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Time in vigorous physical activity during predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days)
Time in vigorous physical activity during predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Day time: 06:00-22:00h during study day 1-study day 6
Time in vigorous physical activity during predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Exercise time: The time the participant has recorded start and end of exercise session during study day 1 -study day 6
Number of steps during predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Number of steps during predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days)
Number of steps during predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Day time: 06:00-22:00h during study day 1-study day 6
Number of steps during predefined time blocks
Per protocol analysis and intention-to-treat analysis
Time frame: Exercise time: The time the participant has recorded start and end of exercise session during study day 1 -study day 6
Heart rate during exercise sessions
Per protocol analysis and intention-to-treat analysis
Time frame: Exercise time: The time the participant has recorded start and end of exercise session during study day 1 -study day 6
R-R intervals during exercise sessions (f)
Per protocol analysis and intention-to-treat analysis
Time frame: Exercise time: The time the participant has recorded start and end of exercise session during study day 1 -study day 6
Sleep latency (min) during the primary and total intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Sleep latency (min) during the primary and total intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days)
Total sleep time (min) during the primary and total intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Total sleep time (min) during the primary and total intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days)
Sleep efficiency (%) during the primary and total intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Sleep efficiency (%) during the primary and total intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days)
Number of awakening during sleep in the primary and total intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Number of awakening during sleep in the primary and total intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days)
Time of awakening during sleep in the primary and total intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Primary intervention period: 06:00h study day 1 - 06:00h study day 6 (= 5 x 24-hour days)
Time of awakening during sleep in the primary and total intervention period
Per protocol analysis and intention-to-treat analysis
Time frame: Secondary intervention period: 08:00h day 1 - 08:00h day 8 (= 7 x 24-hour days)
Question about patient preference regarding the two study arms
Per protocol analysis and intention-to-treat analysis
Time frame: At the end of study. Study day 6 the last interventions period.
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