Thursday, 7 April 2016

Exercise : Sit Up

Sit up
is an abdominal endurance
training exercise performed
to strengthen 
tone the abdominal muscles

It begins with lying
with the back on the floor,
arms across chest
or hand behind head
and knees bent 
to reduce stress
on back muscle and spine

**Full sit ups
may cause back pain
and arching
of the lower back,
increasing the risk
of back injury

**Don't overdo it

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