[[alternative]]Effects of Running and Weight Training on Liver Function,Aerobic Capacity, and Muscular Strength in Hepatitis B Carriers

[[abstract]]Purpose: The purpose of this study was to compare the effects of running and weight training on liver function, aerobic capacity, and muscular strength in hepatitis B carriers. Methods: Forty subjects were randomly assigned to four groups: 1) High intensity running group (HG, age = 22.5 ±3.58 yrs): 85% VO2max, 20 minutes; 2) Low intensity running group (LG, age =22.1 ±2.77 yrs): 50% VO2max, 30 minutes; 3) Weight training group (WG, age =22.2 ±1.72 yrs): 15RM, eight exercises; 4) Control group (CG, age =24.4 ±4.48 yrs). Blood samples were collected before the training(T1), after week four(T2) and eight(T3) of training, and after a 4-week of detraining(T4). Aerobic capacity and muscular strength were examined at T1, T3, and T4. Liver-examined values were diagnosed by normal range; aerobic capacity and muscular strength were analyzed by mixed design two-way ANOVA and repeated design one-way ANOVA. Results: 1) Liver function: All liver-examined values in four different training groups were within normal range at T1, T2, T3, and T4. 2) Aerobic capacity: VO2max was significantly increased at T3 in HG; however, it decreased at T4. In contrast, there were no significant changes at T1, T3, and T4 in LG. 3) Maximal muscular strength of all exercises raised significantly at T3. Bench press, leg extension, and lat pulldown were reduced at T4 when compared with T3. Conclusion: Hepatitis B carriers seem to tolerate running training of 85% and 50% VO2max and 15RM weight training well. They can improve aerobic capacity after 85% VO2max running training and increase maximal muscular strength after 15RM weight training.