Participants that fulfill the inclusion criteria will be assigned into one of the two arms: elastic band intervention group (EB) or control group (CG). Both groups will received a baseline: dual X-ray absorptiometry body composition, physical capacity, and serum markers examinations. EB will then receive a 16-week progressive elastic band resistance exercise training, while the CG will receive usual care. After the 16 weeks from the baseline assessment, a followed-up: dual X-ray absorptiometry body composition, physical capacity, and serum examinations will be assessed.
Adults aged over 18 years, with the diagnosis of Prader-willi syndrome will be recruited through the hospital's outpatient clinic for either as intervention group receiving therapeutic elastic band training, or as control group receiving usual care for a total of 16 weeks. Body composition, physical capacity, and serum changes will be assessed before and after the intervention.