Participants performed a bout of 50 maximal eccentric contractions of the elbow flexors (ECC) using a dumbbell that was set at 100% of the pre-exercise maximal isometric force (MIF) level.

• 在实验第1天，让所有受试者非惯用手的肱二头肌做一回合50次最大强度的离心收缩(ECC)，以引起明显的肌肉损伤。