Plenty of workout routines have days per week devoted to focusing on particular muscle groups ("leg day" etc), the study seems aimed at looking at their effecti

Plenty of workout routines have days per week devoted to focusing on particular muscle groups ("leg day" etc), the study seems aimed at looking at their effectiveness. Its a study where they controlled variables to learn how the body responds to different types of stimulus, not a workout plan. It can inform the design of a workout plan but someone just naievely adopting this study design is