what is the purpose
of the exercise?
does it accomplish its purpose?
does it violate
any principles of good mechanics?
what are the chief joint and muscle actions
involved in it?
what are its intensity
- beginner, experienced, or advanced performer
- are there elements of danger, injury or strain against which precautions should be taken?
is it likely to call forth any undersirable or harmful responses
against which the performer should be on guard?