SCS Speed & Agility Development 2

Question 1

Which phase of the sprint acceleration curve typically lasts from 0–30 meters?

Accepted Answer

Drive phase

Answer

The drive phase covers roughly 0–30 m, where the athlete produces horizontal force at a forward lean to build speed.

Question 2

What does a reactive strength index (RSI) primarily measure?

Accepted Answer

Ground contact time relative to jump height

Answer

RSI = jump height ÷ ground contact time, reflecting the ability to rapidly absorb and redirect force.

Question 3

In agility training, a 'closed' drill differs from an 'open' drill in that it:

Accepted Answer

Follows a pre-planned movement pattern without a stimulus

Answer

Closed drills use fixed, pre-determined patterns, while open drills require the athlete to react to unpredictable cues.

Question 4

Which ground contact variable most directly limits top-end sprint speed?

Accepted Answer

Ground contact time

Answer

Elite sprinters achieve top speed partly by minimizing ground contact time while maintaining sufficient force application.

Question 5

A sport coach wants to develop 'change-of-direction speed' (CODS) without a reactive component. Which drill is MOST appropriate?

Accepted Answer

Pro-agility (5-10-5) shuttle on a set course

Answer

The pro-agility shuttle is a pre-planned CODS test/drill with no reactive stimulus, isolating mechanical COD ability.

(SCS) Sports Conditioning Specialist Certification Practice Test