TNNT1 and Charcot-Marie-Tooth disease type 1: The alternative splicing pattern of TNNT1 observed in TIRM+ samples compared to controls resembles a pattern reported in muscle from patients with Charcot-Marie-Tooth disease type 1 (CMT1), but not CMT type 2, where it associates with increased specific force in individually isolated muscle fibres, as well as chronically overused muscle from a prior Polio patient [99].