The curl-up test is performed to measure abdominal strength and muscular strength.
Whereas, the arm hang test is performed to measure upper body strength and endurance.
What is curl-up and arm hang test?
In curl-up test, a person is required to perform as many as curl-up as possible followed by a set cadence.
It gives idea about person's strength of the back support and core stability.
In arm hang test, it is determined that how long a person can remain with the chin above a horizontal bar.
It measures grip strength of a parson.
Since both the tests are used to determine strength of different body parts, these tests can not be used interchangeably.
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