What are the main problems with this Russian Twist exercise? “The first issue is compression. Staying in that half sit-up position requires a massive contraction of the abdominals and hip flexors, which in turn produces excessive compression of the lumbar spine . “The second issue is flexion.29 Eki 2020
Why are Russian twists so hard?
What are the main problems with this Russian Twist exercise? “The first issue is compression. Staying in that half sit-up position requires a massive contraction of the abdominals and hip flexors, which in turn produces excessive compression of the lumbar spine . “The second issue is flexion.29 Eki 2020