In addition to EMG activity recording for the whole activity, we would like to measure muscular fatigue before and after specifics motor tasks by using a static test. Is there a previously tested protocol that uses MVC or percentage of MVC?
fatigue is task dependent, and each test measures a factor that contributes to fatigue, you should analyze your task and see what factor the fatigue could be attributed to, then a dynamic test or an isometric test will give you different results. it has been seen that the rate of force development is more useful for analyzing muscle damage. I recommend you to read: translating fatigue to human performance - Enoka 2016 - Rate of force development as a measure of muscle damage - Peñailillo 2015 and Fatigue and recovery measured with dynamic properties versus isometric force: effects of exercise intensity - Krugger 2019
Pablo Merino-Muñoz Thank you for sharing. I am reading the work from Enoka 2016 and it's very interesting. In addition, I probably found a feasible protocol between its references.