Afternoon! Sorry to hear about the hip flexor, hopefully it's on the mend!
I'm sore from CrossFit yesterday but decided to do an easy 2 mile run. When I finished I did 50 sit-ups on the stability ball and held a plank position 5x30seconds. I have absolutely no core muscles/upper body strength and need to fix that...I'd love to be able to do a real pushup some day.
Tiara Classic 5k 5/13/12: 37:19
Marion Village 5k 6/23/12 32:55
Rochester Road Race 5k 8/11 29:58
Acushnet Road Race 4 mile 9/3 41:07
Spooky Spooner 5k 10/28 PR 28:05