Planks 4:31 seconds personal best on planks

[Agnostic007]

55 years old, started a different regime other than the traditional Back Biceps, Chest Triceps, Legs shoulders routine. Ny current workout is the Planet fitness circuit room and a particular body part one day, then stretching and abs with HIIT cardio the next day. I'd like to build up to 7 min ab plank but wonder if its worth it 

[chaos]

Is it worth it? That's for you to decide. If you've set some kind of goal and you reach it, that makes it worth it. IMO

[Yev33]

Like Chaos said it really depends on your goal. If your goal is to hold a plank for maximum time then it's worth it. If your goal is to use the plank as a measure of abdominal strength then it's a bit more complex. Obviously you need some abdominal strength to hold a plank for a period of time. But after a certain point it becomes less of a test of abdominal strength and more of a how long can you hold a plank. Does that happen at 3 minutes, 5 minutes, 10 minutes, I don't know. I have never done planks before but the one time I tried it I held for 2 minutes fairly easy.

[Agnostic007]

Not worth it.... lower back is killing me today. Only thing new is the long plank time so I'll do something else.