[Ventilatory efficiency during incremental exercise in relation to various types of myosin heavy chain content in vastus lateralis m. quadricipitis femoris in healthy young men].

The main aim of this study was to determine whether ventilatory efficiency during incremental exercise is related to various types of myosin heavy chain (MyHC) content in vastus lateralis in. quadricipitis femoris in young healthy men. The respiratory efficiency was expressed by VE/VCO2 slope, determined during sublactate threshold power outputs of the incremental exercise.