RYR1 and myopathy: More recently, RYR1 variants have also been associated with other atypical phenotypes including exercise‐induced rhabdomyolysis (Knuiman et al., 2019), some forms of periodic paralysis (Jungbluth & Hanna, 2018), adult‐onset distal myopathy (Machnicki et al., 2021; Pietrini et al., 2004; Zhou et al., 2010), mild calf‐predominant myopathy (Jokela et al., 2019), foetal akinesia deformation sequence syndrome/arthrogryposis multiplex congenital and lethal multiple pterygium syndrome (Alkhunaizi et al., 2019).