Improving body composition and physical activity in Prader-Willi Syndrome

Area of Science:

• Pediatrics
• Genetics
• Exercise Physiology

Background:

• Prader-Willi Syndrome (PWS) is a complex genetic disorder.
• Individuals with PWS often experience challenges with body composition, physical capacity, and activity levels.
• Limited therapeutic options exist to address these physical impairments.

Purpose of the Study:

• To investigate the efficacy of a calf muscle training program in improving local body composition.
• To assess the impact of the training program on physical capacity and spontaneous physical activity in children and adolescents with PWS.

Main Methods:

• A 3-month daily calf muscle training program was conducted in 17 children/adolescents with PWS and 18 controls.
• Measurements included calf circumference, skinfold thickness, spontaneous physical activity (pedometer), and exercise capacity.
• Assessments were performed before training, at 3 months, and 3 months post-training.

Main Results:

• Calf skinfold thickness decreased and calf circumference increased in the PWS group, indicating improved muscle mass.
• Spontaneous physical activity significantly increased from 45% to 71% in the PWS group.
• Physical capacity showed a significant improvement, rising from 31% to 78% in the PWS group.

Conclusions:

• A structured calf muscle training program is effective in improving local body composition in individuals with PWS.
• The training program demonstrated generalized positive effects on physical activity and capacity.
• This intervention presents a promising new therapeutic strategy for managing metabolic conditions associated with PWS.