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