['Regular performance (~2 x week) of Nordic curls has been shown to increase hamstring strength and reduce the risk of hamstring strain injury, although no consensus on ankle position has been provided.', 'The aim of this study was to compare the effects of performing Nordic curls, with the ankle in a dorsiflexed (DF) or plantar flexed (PF) position, on muscle activity of the biceps femoris (BF) and medial gastrocnemius (MG).', 'Fifteen (age 22.6 ± 2.1 yrs; height 1.78 ± 0.06 m; body mass 88.75 ± 8.95 kg) male collegiate athletes.', 'A repeated measures design was utilized, with participants performing two sets of three repetitions of both variations of Nordic curls, while assessing muscle activity via surface electromyography (EMG) of the BF and MG. Comparisons of muscle activity were made by examining the normalized EMG data as the percentage of their maximum voluntary isometric contraction (MVIC).', "Paired samples t-test revealed no significant difference in normalized muscle activity of the BF (124.5 ± 6.2% vs. 128.1 ± 5.0%, p > 0.05, Cohen's d = 0.64, power = 0.996) or MG (82.1 ± 3.9% vs. 83.5 ± 4.8%, p > 0.05, Cohen's d = 0.32, power = 0.947) during the Nordic curls in a PF or DF position, respectively."] Do ankle Position During the Nordic curl Does Not Affect Muscle Activity of the Biceps Femoris and Medial Gastrocnemius?