Muscle fiber typology is associated with the incidence of overreaching in response to overload training
Phillip Bellinger, Ben Desbrow, Wim Derave, Eline Lievens, Christopher Irwin, Surendran Sabapathy, Ben Kennedy, Jonathan Craven, Evan N. Pennell, Hal Rice, Clare Minahan
Abstract
Variability in the performance responses following an overload training period and subsequent taper was associated with the variation in the muscle fiber typology of the gastrocnemius. Runners with an estimated higher proportion of type I fibers (i.e., lower carnosine z-score) were able to maintain performance in response to an overload training period and subsequently achieve a superior performance supercompensation. These findings show that muscle fiber typology contributes to the variability in performance responses following training.
Topics & Concepts
MedicineTreadmillGastrocnemius muscleVO2 maxInternal medicineEndurance trainingCardiologyPhysical therapyHeart rateEndocrinologySkeletal muscleBlood pressureExercise and Physiological ResponsesMuscle metabolism and nutritionSports Performance and Training