LONG-TERM ASSESSMENT OF ECCENTRIC, ISOMETRIC, CONCENTRIC MUSCLE STRENGTH AND FUNCTIONAL CAPACITY AFTER SEVERELY BURNED ADULT

Background: Severe burn leads to marked and prolonged skeletal muscle catabolism and weakness. Objective: The aim of this study was to investigate the long term effect of severe burn injury on eccentric, concentric, isometric muscle torque, average power, lean body mass, six minute walk and 8-foot walk. Design: Eccentric, isometric and concentric muscle torque and average power were assessed at 24 months in burned adult with 40%-50% total body surface area (TBSA) at 150 o/s by using isokinetic dynamometry, Total lean body mass (TLBM) and lower limb mass (LLM) measurements were assessed for both groups using dual energy X-ray absorptiometry. Functional capacity was assessed using six minute walk test (6MWT) and 8-Feet walk test. Lean body mass (LBM) was determined via dual energy X-ray absorptiometry. Nonburned adult was assessed similarly, and served as controls. Results: severely burned adult (n=35), relative to nonburned adult (n=42) had significantly lower peak torque of eccentric, isometric, concentric muscle strength, average power and functional capacity. The most affected type of muscle strength after burn was concentric, isometric then eccentric. Conclusions: Our results serve as an objective data for assessing the three modes of muscle strength and functional capacity in severely burned adult population.