Running speed is the interaction of which two factors?

Running speed is the interaction of which two factors?

• A. Stride frequency and stride rate
• B. Stride length and stride rate
• C. Cadence and pace
• D. Velocity and acceleration

Answer: (A)

Speed in running comes from how far you travel in each stride and how often you take strides. In other words, you multiply the distance covered per stride (stride length) by how many strides you take per unit time (stride rate, also called cadence). That gives speed: distance per time. The other ideas mix concepts that don’t directly multiply to yield speed. Taking two frequencies (stride frequency and stride rate) describes how often you move but not how far you go per move. Cadence and pace are related but are not the distance-per-stride times strides-per-time form. Velocity and acceleration describe motion differently rather than the specific product that gives speed.

Speed in running comes from how far you travel in each stride and how often you take strides. In other words, you multiply the distance covered per stride (stride length) by how many strides you take per unit time (stride rate, also called cadence). That gives speed: distance per time.

The other ideas mix concepts that don’t directly multiply to yield speed. Taking two frequencies (stride frequency and stride rate) describes how often you move but not how far you go per move. Cadence and pace are related but are not the distance-per-stride times strides-per-time form. Velocity and acceleration describe motion differently rather than the specific product that gives speed.