The aim of the present study is to investigate the changes in body composition and the degree of compensation to exercise induced energy expenditure after 1 year of physical activity with either moderate or vigorous intensity in overweight and class 1 obese men and women. The present study is a sub study to main study "Active Commuting To Improve Well-being and Health in Everyday Life" (NCT 01962259)
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Enrollment
188
University of Copenhagen, Department of Biomedical Sciences
Copenhagen, Denmark
Total body fat
Changes in total body fat (kg) measured by dual x-ray absorptiometry
Time frame: Change from baseline in body fat at 3 months
Total body fat
Changes in total body fat (kg) measured by dual x-ray absorptiometry
Time frame: Change from baseline in body fat at 6 months
Net energy balance and degree of compensation
1\. Net energy balance calculated from changes in body composition, and 2. the degree of compensation as the difference between energy spent during exercise and net energy balance
Time frame: 3 and 6 months
Compensatory mechanisms
1\. Resting metabolic rate determined by indirect calorimetry, 2. Total physical activity (TPA) measured using accelerometry, 3. Non-exercise activity determined as the difference between TPA and exercise activity, and 4. Energy intake determined by food records and during meal tests
Time frame: Baseline, 3 and 6 months
Appetite control
Appetite control determined via 1. blood samples (peptides and metabolites) and 2. self rated sensations (visual analogue scales) in relation with standardized meals and exercise, as well as 3. ad libitum energy intake and 4. Eating behaviours determined via three-factor eating questionaire
Time frame: Baseline, 3 and 6 months
Anthropometry
Body composition measured by dual x-ray absorptiometry, height, weight, waist and hip circumference, sagittal abdominal height
Time frame: Baseline, 3 and 6 months
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