阻力訓練對慢性B型肝炎者肝功能指數與肌力之影響

The Effects of Resistance Training on Hepatic Parameters and Muscular Strength in Chronic Hepatitis B Patients

目的：本研究主要目的在於觀察阻力訓練前後，慢性B型肝炎者肝功能指數及肌力的變化情形。方法：受試者為20名自願參與本研究之男性B型肝炎帶原者，隨機分配於兩組，分別為阻力訓練組（RT組；22.2±1.72歲）：8種動作、15RM、3組、每週3次及控制組（C組；24.4±4.48歲），並於訓練前（T1）、訓練4週（T2）、8週後（T3）及停止訓練4週後（T4）採血以分析肝功能，並於T1、T3及T4測驗最大肌力。研究所得之肝功能指數以正常值作為判定標準，肌力數值則以相依樣本單因子變異數分析進行檢定。結果：肝功能部分，兩組在T1、T2、T3及T4所測得的肝功能指數皆落在正常範圍內。而在RT組中，AST及ALT值能維持較C組穩定的狀態；肌力部分，八項動作的肌力於T3顯著提升，而仰臥推舉、大腿踢伸及正握拉槓等動作於T4顯著下滑。結論：慢性B型肝炎者經過8週，每週3次的阻力訓練，對於肝功能的控制似乎有不錯的效果且能有效提升肌肉適能。

Purpose: The purpose of this study was to investigate the effects on hepatic parameters and muscular strength in chronic hepatitis B patients after a 8 weeks resistance training. Method: There were twenty subjects participated in this study. They were randomly assigned to two groups: 1) Resistance training group (RT, age =22.2 ±1.72 yrs): 15RM, 8 exercises, 3 sets, 3 d∙ wk-1; and 2) Control group (C, age =24.4 ±4.48 yrs). Blood samples were drawn from the subjects before training (T1), after 4-week of training (T2), after 8-week of training (T3), and 4-week of detraining (T4). Muscular strength values were examined at T1, T3, and T4. Hepatic parameters were diagnosed by normal range and muscular strength values were analyzed by repeated design one-way ANOVA. Result: 1) All hepatic parameters were within normal range for T1, T2, T3 and T4 in both groups. The values of AST and ALT in RT were more stable than in C. 2) 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: Resistance training can improve muscular strength and also good for liver function in chronic hepatitis B patients.