I am 22, 5'10'', weigh 90 kilograms (198 pounds) and I am constrained to exercise before 9:00 and after 20:00.
I therefore exercise twice a day indoors (geek's life) . And it's mostly squats (with variations), pushups, russian twists (that exercises obliques as well as the abs) and burpees.
I have to limit the reps of the squats and burpees as the lower back aches shortly after starting the squats. I cant exert much before the ache kicks in. And no, my back never bothers me when I am not exercising, and I am flexible enough to touch my toes.
What factors are putting the strain on my back? I tried taking these apart individually, but I cant pinpoint anything.
- Inadequate warm up
- going to the shower just minutes after the burpees
- bad form with the burpees
- exercising twice a day