Exploring the effects of different types of therapeutic exercises in older people with sarcopenia (loss of muscle mass and strength)

INTERVENTION: Participants are randomized into three groups – Group A, Group B and Group C Group A: Participants receive supervised group therapeutic exercises two times per week for 12 weeks. Furthermore they walk for 100 min per week (minimum). Group B: Participants receive home therapeutic exercises for 12 weeks. Furthermore they walk for 100 min per week (minimum). Group C: Participant receive a leaflet with educational advice on diet, lifestyle and activity. CONDITION: Sarcopenia ; Musculoskeletal Diseases ; Sarcopenia PRIMARY OUTCOME: 1. Quality of life is assessed using the Sarcopenia Quality of Life (SarQol) questionnaire at baseline, 12 weeks, 24 weeks and 12 months; 2. Muscle strength is assessed with Biodex isokinetic dynamometer for knee flexors and extensors at baseline, 12 weeks and 24 weeks ; 3. Gait speed is assessed using the 4‐m test at baseline, 12 weeks and 24 weeks ; SECONDARY OUTCOME: 1. Function is assessed using the Timed Up and Go Test and sit to stand test (5 repetitions) at baseline, 12 weeks and 24 weeks ; 2. Fatigue is assessed using the FSS questionnaire at baseline, 12 weeks, 24 weeks and 12 months; 3. Fear of falling is assessed using the FES questionnaire at baseline, 12 weeks, 24 weeks and 12 months; 4. Body composition and Muscle mass is assessed using Bioelectrical impedance analysis (Tanita BC 601) at baseline, 12 weeks and 24 weeks ; 5. Calf measurement is assessed in cm at baseline, 12 weeks and 24 weeks ; 6. Depression and anxiety is assessed using the HADS questionnaire at baseline, 12 weeks and 24 weeks ; 7. Hand grip muscle strength is assessed with handheld grip dynamometer (SAEHAN) at baseline, 12 weeks and 24 weeks ; 8. Balance is assessed with the Berg Balance Scale at baseline, 12 weeks and 24 weeks ; 9. Nutrition is assessed with the SNAG questionnaire at baseline, 12 weeks, 24 weeks and 12 months post exercise; 10. Physical activity is assessed with PASE questionnaire at baseline; 11. Mental state is assessed with the Mini Mental Scale at baseline; INCLUSION CRITERIA: 1. Sarcopenic patients according the European Working Group on Sarcopenia in Older People criteria (EWGSOP) 2. Aged 60 years and older 3. Not currently engaged in exercise training (within last 3 months)