The purpose of this study was to clarify the coordination between the trunk and lower limb muscles during sidestep and to compare this coordination before and after fatigue intervention. The intervention was lateral jump until exhaustion. Nonnegative matrix factorization (NMF) was used to extract muscle synergies from electromyography. https://www.nacrack.com/quick-find-PrimaLuna-EVO-400-Tube-Preamplifier-super-choice/