Ultrasound Assessment of a Physical Exercise in The Water in a Frail Population

There will be an intervention for 12 weeks. For exercises in the water, there will be an expert physiotherapist in the field of hydrotherapy that will guide the exercises in controlled sessions of approximately 45 minutes. Exercises of joint mobility, balance, strength and coordination with / without aquatic material will be included. At all times, qualified health personnel will monitor any symptom or sign that advises the removal of the subject of the study.