Hegyi A, et al. - During unilateral and bilateral Nordic hamstring exercise (NHE) performed with either neutral (NHE0) or 90° flexed (NHE90) hips, authors estimated knee flexion torque, and biceps femoris long head (BFlh) and semitendinosus (ST) high-density electromyography (HD-EMG) activity. They performed exercises on a novel device at eccentric 1-repetition maximum load specified for 90-15° knee range of motion. They noted the selective activation of BFlh near full knee extension due to NHE if performed with neutral hips. They preferred to perform NHE with hips flexed to 90° when higher passive torque and ST selectivity were targeted at a longer muscle length.