As described by the American College of Sports Medicine, proper technique during the push-up test involves _____.
a timing the number of push-ups performed in two minutes
b. requiring both female and male subjects to use the toes as the pivotal point of movement
c. allowing a slight (20 degree) elbow flexion at the "top" of the movement
d. stopping the test when the subject strains forcibly
Answer: d. stopping the test when the subject strains forcibly