how many minutes of plank
Also, a recent study on 168 college students found that your average college-aged female has a plank time of about 1 minute, 30 seconds, while an average college-aged male has a plank time of about 1 minute, 46 seconds (2).
If you can hold a plank for more than two minutes with ease, you can move on to these tougher variations. Lift one leg up. By simply raising one leg in the air, you dramatically increase the demand on your core to fight your body's natural urge to rotate. Lift one arm up. Again, your body will want to fall to one side.