I decided to take on the plank a day challenge for 30 days. I have never held the plank position for more than 90 seconds at one time so I am wondering if I will really be able to hold it longer than that as time wears on.
(2.9) Day 24 – 3:30 sec: After swimming, a short run, and then an hour of mountain biking, I was still able to hold the plank for 3:30, but did not have the umph within me to push 10 more seconds.
Recap:



