Question

The staircase effect or ____ represents a warm up effect due to increasing intracellular calcium concentration?

1) stair-step effect
2) step-up effect
3) warm-up effect
4) calcium effect

Answer 1

The staircase effect, also known as Treppe, represents a warm-up effect due to increasing intracellular calcium concentration in muscle contraction. The correct answer is 3) warm-up effect.

Step-by-step explanation:

The staircase effect or Treppe represents a warm-up effect due to increasing intracellular calcium concentration.

When a skeletal muscle has been dormant for an extended period and then activated to contract, the initial contractions generate about one-half the force of later contractions.

The muscle tension increases in a graded manner that looks like a set of stairs. This tension increase is called treppe, also known as the "staircase effect".

Therefore, the correct answer is 3) warm-up effect.