I have not done any core in over 2 weeks, and making the then/now picture reminded me of why I should get back on the horse. It was late, I was tired but managed to get on the bar.
The workout went as follows:
20 Chinups with my legs straight forward
65 Knee lifts.
Knees are hurting a bit so, I will probably take it easy an not run, but I think I will hit the weights.