[LVB]

My dream. Over my entire Army career, I went between failing and barely passing the sit-up test. I did just fine on the run and push-ups and was always doing a ton of additional sit-up exercises, but it was always a major stressor whether I'd pass that damn test on any given morning.

[CapricornNoble]

I knew a short stocky SNCO who just struggled with crunches, no matter how much effort he put into them. I found crunches easy because I have long arms and a short torso, so the distance I had to travel to do a technically-correct crunch was minimal. But I've always struggled with pull-ups....because those same long arms make the pull-up distance feel like I'm free climbing the Dawn Wall.

I also think doing sit-ups in the Army on stupidly-hard surfaces (parking lots, etc...) before I switched to the Corps is one of the main sources of my lower back pain.