Describe the muscular factors that contribute to changes in muscle force

Muscular factors involve differences in muscle size, muscle fibre type, muscle fibre length and the velocity of shortening. The maximum force that a muscle can exert depends on the Physiological cross-sectional area (PCSA). (PCSA) – measure of the number of cross-bridge that are in parallel. Muscles with large PCSA produce large forces but have short muscle fibres and lower contractile velocity.