Fernandes John F T, Lamb Kevin L, Twist Craig
Department of Sport and Exercise Science, University of Chester, Chester CH1 4BJ, UK.
Higher Education Sport, University Centre Hartpury, Hartpury GL19 3BE, UK.
J Funct Morphol Kinesiol. 2018 Aug 22;3(3):45. doi: 10.3390/jfmk3030045.
Little is known about the internal and external loads experienced during resistance exercise, or the subsequent fatigue-related response, across different age groups. This study compared the internal (heart rate, OMNI ratings of perceived exertion (RPE), session RPE) and external loads (peak velocity and power and volume load) during high volume squatting exercise (10 × 10 at 60% one-repetition maximum (1RM)) and the fatigue-related response (maximal voluntary contraction (MVC), voluntary activation (VA), resting doublet force, peak power, and blood lactate) in young ( = 9; age 22.3 ± 1.7 years) and middle-aged ( = 9; age 39.9 ± 6.2 years) resistance-trained males. All internal load variables and peak velocity illustrated unclear differences between groups during exercise. Peak power and volume load were likely higher in the young group compared to their middle-aged counterparts. The unclear differences in MVC, VA and blood lactate between groups after exercise were accompanied by very likely greater decrements in resting doublet force and peak power at 20 and 80% 1RM in the middle-aged group compared to the young group. These data indicate that internal load is not different between young and middle-aged resistance-trained males, though certain external load measures and the fatigue response are.
关于不同年龄组在抗阻训练期间所承受的内部和外部负荷，以及随后与疲劳相关的反应，我们所知甚少。本研究比较了年轻（n = 9；年龄22.3±1.7岁）和中年（n = 9；年龄39.9±6.2岁）的抗阻训练男性在高容量深蹲运动（60%一次重复最大值（1RM）下10×10）期间的内部负荷（心率、OMNI主观用力感觉评分（RPE）、训练RPE）和外部负荷（峰值速度、功率和容量负荷），以及与疲劳相关的反应（最大自主收缩（MVC）、自主激活（VA）、静息双峰力、峰值功率和血乳酸）。运动期间，所有内部负荷变量和峰值速度在两组之间均显示出不明显的差异。与中年组相比，年轻组的峰值功率和容量负荷可能更高。运动后两组之间MVC、VA和血乳酸的不明显差异，伴随着中年组与年轻组相比，在20%和80% 1RM时静息双峰力和峰值功率更有可能出现更大幅度的下降。这些数据表明，年轻和中年的抗阻训练男性之间的内部负荷没有差异，尽管某些外部负荷指标和疲劳反应存在差异。
