摘要：Baptista R, Onzi E, Goulart N, Dos Santos LD, Makarewicz G, Vaz M. Effects of Concentric Versus Eccentric Strength Training on the Elderly’s Knee Extensor Structure and Function. JEPonline 2016;19(3):120-132. The purpose of this study was to compare the effects of eccentric vs. concentric 12-wk strength training program on the quadriceps properties of elderly men. Twenty-three subjects performed unilateral concentric knee extension on one side and eccentric knee flexion on the contralateral side at 80% of 5 RM. Both protocols increased knee extensor strength. Vastus lateralis fascicle length decreased and pennation angle increased without changes in muscle thickness in both protocols. Patellar tendon length increased after both protocols, but tendon cross-sectional area increased only post-eccentric training. Isometric and dynamic torque increased in both groups. Concentric and eccentric training can be used with similar results in older adults.
