At what point after an activity has been initiated does the body ...

[Ebrown]

At what point after an activity has been initiated does the body switch energy sources from the immediate energy system to the anaerobic energy system?
 
  A) 10 seconds B) 1 minute C) 30 seconds D) 5 seconds

Question 2

Misalignment of the spine leading to lower-back pain can be caused by
 
  A) strong abdominal muscles. B) muscular imbalances.
  C) proper body mechanics. D) loose hip flexors.

[Awesome]

Answer to Question 1

C

Answer to Question 2

B

[Ebrown]

TYSM

[nothere]

Thanks for the timely response, appreciate it