Top California Personal Trainer Accidentally Discovers A 23-Second Waist Shrinking Exercise After An EMERGENCY Trip To The Hospital!
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what is six pack??
Your six-pack is actually one sheet of muscle, called the rectus abdominis, which extends from your ribcage to your pubic bone. So any abs-specific
exercise will work the entire area, but your rectus abdominis is
supported by your external obliques, internal obliques and erector
spinae.