The types of exercises that can improve the power of young tennis players included resisted training , mixed high-intensity intermittent running sessions and tennis-specific training sessions, tennis-specific drills , plyometric training , combined explosive strength and repeated sprint training , NWU training, DWU training , NMT , and HIIT vs ...
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8924058