The rectus abdominis receives all the credit for a well-developed midsection. But there's an underrated star beneath it that can pull your stomach in and enhance your six-pack even more!
The rectus abdominis receives all the credit for a well-developed midsection. But there's an underrated star beneath it that can pull your stomach in and enhance your six-pack even more!
The rectus abdominis receives all the credit for a well-developed midsection. But there's an underrated star beneath it that can pull your stomach in and enhance your six-pack even more!