Stair climbing is an efficient aerobic exercise if sustained for ...

[yoroshambo]

Stair climbing is an efficient aerobic exercise if sustained for at least ____ minutes.
 a. 10
  b. 15
  c. 20
  d. 25
  e. 30

Question 2

Monica participates in a fitness class in which she does pushups off the handlebars while riding a stationary bicycle. What type of fitness program is this?
 a. elliptical training
 b. cross-training
 c. plyometric training
  d. interval training
 e. circuit training

[Briannahope]

Answer to Question 1

c

Answer to Question 2

b