“…Peak performance in running and jumping events are almost equal in boys and girls until the age of 12 y, after which there are greater increases in strength and power in boys (Malina et al, 1997; Tonnessen et al, 2015). In general, sex differences in peak performance range between 10 and 12% for running events and 19% for jumping events (Cheuvront, Carter, Deruisseau, & Moffatt, 2005; Ospina‐Betancurt, Zakynthinaki, Martínes‐Patiño, Cordente Martinez, & Rodríguez Fernández, 2018; Seiler, De Koning, & Foster, 2007; Thibault et al, 2010). Differences beyond this age have been attributed to hormone‐dependent and red blood cell mass changes in physiological properties (Goswami, Roy, Dalui, & Bandyopadhyay, 2014; Ospina‐Betancurt & Zakynthinaki, 2020).…”