A major contributor to back pain is ____, which causes back ...

[littleanan]

A major contributor to back pain is ____, which causes back muscles to shorten, stiffen, and become weaker.
 A) too much walking
  B) excessive sitting
  C) low body weight
  D) physical activity
  E) excessive stretching

Question 2

You are demonstrating alternating bent-leg sit-ups to your client. You warn him that this exercise could strain the ____.
 A) neck disks
  B) bent knee
  C) lower back
  D) shoulders
  E) intervertebral disks

[mbcrismon]

Answer to Question 1

B

Answer to Question 2

C

[littleanan]

Gracias!

[AmberC1996]

Excellent