de Ruiter J, Heiden M, Sedney ZF, Wilmes E. Isolated Unweighted Fast Knee-Flexions Relate to Maximal Step Frequency and Sprint Speed in Female Track Athletes. Int J Strength Cond [Internet]. 2026 Jul. 17 [cited 2026 Jul. 23];6(1). Available from: https://journal.iusca.org/index.php/Journal/article/view/594