Answer:
This scenario is an example of an experimental study design in biomechanics research. Specifically, it is an example of a controlled laboratory experiment where researchers manipulate the independent variable (different shoes) and measure its effects on the dependent variable (knee biomechanics) while controlling other variables such as treadmill speed (5.0, 6.0, and 7.0 miles per hour) to observe consistent effects.
Explanation:
The researchers are interested in understanding how wearing different types of shoes affects knee biomechanics during treadmill running at various speeds. By controlling the treadmill speeds, they can isolate the impact of the shoes on knee biomechanics across different running intensities. This type of study design allows researchers to draw conclusions about the specific influence of different shoes on knee biomechanics under controlled conditions.
