11 ms·

Back crunches are very much a real thing, and one of the core exercises in 5BX (https://csclub.uwaterloo.ca/~rfburger/5bx-plan.pdf https://csclub.uwaterloo.ca/~

• RobertRoberts 9y ago
  That's an awesome booklet, thank you, the cartoons are wacky fun. :) It looks like it's Exercise 3 though, the labels are on the bottom. What I was actually doing is Chart 3 Exercise 3, but they look similar.
  • cableshaft 9y ago
    Just be careful before doing these. "Please Note: Many exercise physiologists consider the sit-up in the higher levels to be capable of causing spinal injury, and therefore unsuitable for an unsupervised program. As always, please consult your physician before attempting any exercise program." Source: https://untotheone.com/public/health/excercise-programs/ https://untotheone.com/public/health/excercise-programs/
    • RobertRoberts 9y ago
      I pay pretty close attention now days, but your warning is a good reminder. I stopped doing situps a long time ago, and stick with crunches, as situps were just uncomfortable. I think a general "pay attention to your body's warning signs" is a good common sense rule.