Assuming 50% efficiency, 150 kcals of chemical energy would result in of kinetic energy. a. 50 kcals b. 75 kcals c. 100 kcals d. 150 kcals

Which of the following processes does the body not use protein to perform? a. repairing muscles b. producing hormones c. making hemoglobin d. creating amino acids

Which of the following is also referred to as "swayback"? a. kyphosis b. scoliosis c. lordosis d. none of the above

If something is painful during exercise, what should you do? a. back off the exercise. b. modify the exercise. c. consult a physician if the pain persists. d. all of the above