/vt/ - Virtual Youtubers

>>55478256
it's not about situps themselves hurting your back, it's about the overdevelopment of one part of your abdomen and then also focusing that overdevelopment in one specific facet of it which is not even the most important facet. the more i study biomechanics the clearer it is that the rectus abdominis being primarily treated as an anterior trunk flexor is just misguided and harmful.