EFFECT OF AEROBIC AND RESISTANCE TRAINING OVER A 6-WEEKS DAY HOSPITAL PERIOD ON BODY FAT IN MODERATELY TO SEVERELY OBESE PATIENTS

Object While numbers of studies, using aerobic and resistance exercise training, have been conducted in obese patients over a period from 8 to 12 weeks [1] , [2] , few are available in a model of 6 weeks day hospital period. Then we have developed a program including continuous and intermittent aerobic exercise as well as strength training during 6 weeks. The main objective of our protocol was to determine whether 6 weeks of training in day hospital enhance peak oxygen consumption, strength and reduce significantly the fat mass in obese patients. Materials and methods Aerobic and strength capacity in moderately to severely obese patients ( n  = 6,BMI 35–40 kg/m 2 ) was assessed by an incremental test, isokinetic measurement and 1-RM determination before and after training period. Body composition including fat mass and fat-free mass was determined by bioelectrical impedance. Based on the results of aerobic and strength test a 6 weeks training program was conducted. Intermittent and continuous aerobic exercises were realized two times per week as well as strength exercise. Results The first results (in the first 6 patients) show a decrease of 6.9 ± 4.9% of fat mass, an improvement of 12 ± 4.3% in strength, but without improvement in peak oxygen consumption (VO 2 peak). Discussion/conclusion It appears that in moderately to severely obese patients, a mixed 6-week day hospital training program allows to significantly reduce fat mass and to increase muscular strength.