The Effects of Knee Angle on Quadriceps Femoris Activation and Knee Extensor Torque
نویسندگان
چکیده
It has previously been demonstrated that the maximal voluntary contraction (MVC) torque for the quadriceps femoris (QF) muscle occurs within the mid-range (i.e., 45 – 90 deg flexion) of knee range of motion (Ng, et al, 1994; Suter and Herzog, 1997; Welsch et al, 1998). Decreases in voluntary torque generation at the extremes of the functional joint range of motion (0 – 90 deg flexion) may be attributed to mechanical and/or muscle activation factors. The purpose of this study was to examine the effects of knee joint angle on QF activation and knee extensor torque.
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