Introduction. Coxarthrosis is a degenerative health condition at the hip level, frequently occurred in adults, especially in 2 to 4 % of the persons who are 50 to 70 years old. Coxarthrosis reduces the joint mobility with consequences upon the walking perimeter and upon steadiness, with severe dysfunctions and negative effects upon the quality of life. It is very important for the patient to avoid putting on weight (possibly losing weight), to avoid using the orthostatism for too long and to avoid walking on rough grounds. Twenty to thirty per cent of the Romanian population are obese. Nutrition is very important for the elderly, that is why they must have an adequate weight by balanced nutrition and by physical activities adapted to the age and to pathology, which might ensure "a healthy and active old age". Objectives. The objectives of this paper are to point out the role of the body weight index and of the adjacent parameters as well as the role of the kinetic therapy in the recovery of the patients diagnosed with coxarthritis. Methodes. The current trial was carried in the outpatient department throughout the year 2016 on a number of 74 patients with the age over 50. According to the medical guides, the recovery means were represented by the medication treatment, electrical therapy, decontracturing massage, kinetic therapy . Results. The results for VAS scale were statistically significant for both groups and for all the evaluation moments. For the pain, rigidity and physical dysfunction parameters (WOMAC scale), the obtained results for both groups and for all the evaluation moments are statistically significant. Conclusions. The complex treatment enabled the increase in the joint mobility at the level of the knock knee joints, by providing with steadiness, balance and the recovery of the walk. The body weight index and the nutritional status are elements that might influence the recovery of the patients diagnosed with coxarthritis; therefore, they are parameters that must be taken into account within the complex recovery programme.