There are three main elements we need to consider when talking about our “six pack” abdominal muscle.
- Rectus abdominis is our front abdominal muscle. It’s a “twin” muscle, because there are two separate parts of it that go in parallel.
- Rectus abdominis is also separated into several cross sections, generally 4 or 5, by tendinous inscriptions. It is because of these tendinous inscriptions that our stomach looks like a washboard.
- Rectus abdominis muscle is enclosed within a strong tendinous sleeve-like casing called rectus sheath.
An important fact for abdominal six pack workout and generally for ab work out is that rectus abdominis is attached to rectus sheath through tendonous inscriptions. This means that each section of this abdominal muscle can be more or less independent and can be exercised separately if there is a way to isolate one section from other ones when doing ab work out routines.
The only tool that can isolate each abdominal section for very effective abdominal workout is crunchR.
It does not matter if you are building six pack abs or working out to make your tummy flat, for best results you need to isolate each abdominal muscle section using crunchR and work out each section separately.
crunchR also gives a great work out to your obliques and back muscles.