Purpose: the Purpose of the study was to determine the effect underwater resistive exercise in post burned children. Methods of evaluation: (Measurement of bone mineral content, lean body mass and peak oxygen consumption “VO2max”). Subjects: 28 children aged 8 – 12 years of both sexes suffered from severe burn covering 30% or more of the total body surface area (TBSA); all children received Oxandrolone (0.1 mg/kg/day). Children were randomly divided into two groups of equal numbers. Group A (control group ) consisted of 14 children(8 boys and 6girls) with mean age± (SD)10.10 ±0.78years received resistive exercise program while Group B(study group) consisted of 14 children with mean age± (SD) 10.11 ±0.67years (9 boys and 5girls) received underwater resistive exercise program. Both groups participated in 12 weeks exercise program. Measurement of BMC, LBM and VO2 max were done before enrolling in exercise training and after exercise training. Results are expressed as mean ± standard deviation (SD). Comparison between variables in the two groups was performed using unpaired t test while comparison between mean values of variables measured pre- and post-treatment within the same group was performed using paired t test. Results: In both groups, LBM , BMC and VO2 max were significantly greater after exercise training than before start of training program while group B showing more significant improvement than group A. Conclusion: Exercise-induced enhancements in muscle mass, bone mineral content, VO2 max in both groups however significant effect was greater in favour of group (B)
(resistance exercise, underwater resistive exercise, lean body mass, bone mineral content, VO2 max , severe burn).