Lately, my core routine has felt staler than week-old sourdough bread. Sure, classic moves like crunches, Russian twists, and planks are great (and effective!), but in order to reap the gains of ...

Exercises like dead bugs help lengthen and strengthen the hip flexors in a controlled position, which improves form and can help offset the effects of sitting too much, adds Dickinson. Lie faceup, ...