Question

which of the following best represents the causes of stiff muscles?
a stiff muscles only result from overwork
b stiff muscles only result from prolonged periods of inactivity.
c stiff muscles result from both over- and underworking them
d stiff muscles are mostly the result of painful injuries

please select the best answer from the choices provided.

a
b
c
d

Explanation:

• Option A: Stating stiff muscles only come from overwork is incorrect, as inactivity can also cause stiffness.
• Option B: Claiming only prolonged inactivity causes it is wrong, overwork is also a cause.
• Option C: Stiff muscles can result from overworking (e.g., intense exercise without proper recovery) and underworking (e.g., prolonged inactivity leading to muscle atrophy and stiffness), so this is correct.
• Option D: While injuries can cause stiffness, they are not the "mostly" common cause compared to over/underworking.

Answer:

C. Stiff muscles result from both over- and underworking them