What do Swiss ball exercises do?

With the right stability ball exercises, you can work just about every major muscle in your body. Yes, working out with a stability ball is great for your core, but it can also help you improve all-over flexibility, balance, and coordination . It even does your posture a solid.

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Why is Russian twist 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.

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