You’ve no doubt heard the phrase “go heavy or go home.” If you’re new to the weight room or just getting back after taking an extended break, a study recently published in the journal Medicina dello Sport suggest this might not be the best advice for beginners.
Researchers had 28 men with no weight lifting experience perform 4 sets of leg presses using 60%, 80% or 100% of their one rep max (1RM). Each set was performed to failure. Ratings of perceived exertion were highest for the 100% 1RM workout, as you might expect. Subjects using this load also reported more muscle soreness 72 hours after training. Start out with a moderate load and work your way up to greater intensities.