Use a ruler to flatten your lower abs

Use a ruler to flatten your lower abs

How to use a ruler to flatten your lower abs This exercise forces you to contract your lower abs so your lower back will stay flat against the floor and...This exercise builds up the lower and upper abs. Key point: make sure your lower back stays flat against the floor the whole time.

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How to use a ruler to flatten your lower abs

FitnessBody Sculpting

This exercise forces you to contract your lower abs so your lower back will stay flat against the floor and...This exercise builds up the lower and upper abs.
Key point: make sure your lower back stays flat against the floor the whole time.

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Average Grade B-
Length 3:15
Views 279
Format Flash
Curated 5 months ago by 5min
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