Why are Russian twists 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

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Is Russian twist effective?

The Russian twist is an effective way to build your core and shoulders . It’s a popular exercise among athletes since it helps with rotational movement, which happens often in sports. It may look like a simple movement, but it requires a lot of strength and support.

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