Context
Force-speed profiling is a method used to assess an individual’s neuromuscular characteristics, in particular their ability to produce force and generate speed. It can be carried out using specific tests such as the counter-movement jump (CMJ), squat jump, long jump, or isometric tests such as the maximum isometric strength test.
The main aim of strength-speed profiling is to identify an athlete’s individual strength and speed profiles. Some athletes may be faster but less strong, while others may be stronger but slower. Based on these profiles, specific training programmers can be designed to improve weaknesses and optimize sporting performance.
Explanation of data :
The data displayed at the top of the speed force profile are not measured values but calculated theoretical values.
You can see the measurement points on the blue graph on the left, and a linear regression of the points is then drawn (in dotted blue).
This curve is then extrapolated to the right, on the blue curve. In this way, we can estimate the force at zero speed (F0) and the speed at zero force (V0), while the power is calculated by multiplying the two.
Interpreting the data :
The aim is to have the most linear Force/Speed curve possible (maximise R2).
Secondly, to get as close as possible to the optimal profile in green.
The sporting performance of "explosive" efforts is determined by power, which is the product of force and speed.
Two athletes with the same power can have two fundamentally different profiles.
References :
We based this test on the work of Dr Jean Benoît Morin.
Feel free to consult his work for more information.
Here is an explanatory YouTube video that may be useful to you (French only).