A weakened core could be to blame. This study showed a significant reduction in lower back pain after just two weeks of core stabilization exercises (whoa). It even found core work to be more ...
A weakened core could be to blame ... Step 4: Complete 10 reps on each leg (20 total). Rest and repeat. Muscles Worked: A side plank is a workout in and of itself, but to take it up a notch ...