Could I use this as a factor that affects muscle fatigue

[Marie Cailey]

Could I use "The intensity of muscle contractions" as a factory that may affect how quickly muscles become fatigued? I'm doing an experiment, but is this a legitimate idea? Would my hypothesis be "The intensity of muscle contractions in the body affects how quickly muscles become fatigued"?

 

[JBA]

You are correct; and, that is demonstrated by the effects of static isometric muscle stressing exercises.