Men age 17-25 should complete 8 reverse planks in a 2 minute period and Men 25-35 should complete 7.2 reverse planks in 2 minutes. Women in the 17-21 age range, should complete 7.6 reverse planks in 2 minutes with Women 25-35 achieving 6.8.
Over 35s Men over 35 should complete 6.4 reverse planks in a 2 minute period and Women over 35 should complete 6.1 reverse planks in 2 minutes.
Over 60s Men over 60, should complete 5.6 reverse planks in 2 minutes with Women over 60 executing 5.3.
Safety It goes without saying, consult your doctor before starting reverse planks, especially as you get older, if you have health concerns or have not had a recent check up.