What causes chronic strains?
a -- dehydration
b -- improper lifting
c -- sudden injury
d -- repetitive motion

Which of the following are examples of coordinate headings

What angle should your knees not bend past when squatting? a. 30 degrees b. 45 degrees c. 90 degrees d. 120 degrees

Which of the following defines scoliosis? a. a posture disorder characterized by the shoulders being rounded and the back hunched b. a posture disorder in which the spine curves up the back like a snake c. a posture disorder characterized by excessive curvature or arch in the lower back d. none of the above