Russian Twist Tutorial (IMPROVE Your Posture & STRENGTHEN Your Core)
The Russian Twist is an ab exercise I know you’re going to love! As well as hitting your 6-pack ab muscles (Rectus Abdominis), … source
core workout for women
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6 Alternative Core Exercises (… That You’re NOT DOING!)
These are not your everyday core exercises, but they’re guaranteed to blast your belly. This mix of alternative ab exercises work … source