Quick one to hit the Abs.
Choose 3 different Abs exsercises eg (crunchies, plank and ankle wrigglers)
Set the gym boss or timer to 20 seconds countdown and 10 secs rest.
Begin with the first exercise crunchies and complete 20 secs rest for 10 then repeat for a total of 3 sets.
Quickly move to set 2, plank, again hold a plank position for 20 secs and rest for 10 secs repeat 3 times .
Quickly move to the final set, ankle wrigglers and repeat this method once more, the abs should be turned on by now :))))))
Tried and tested