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