Hi, I’m Naoto from the R&D department at LEOMO. In this post, I’d like to introduce a case study that captures an athlete’s characteristics through MPI analysis using the FTP test.
We will look at the motion data of two athletes based on the general FTP test (20 minutes pedaling at full power) for athletes who are familiar with power training.
Athlete: Yokotsuka, LEOMO Bellmare Racing Team
- Power is unstable, with large up and down fluctuations after the middle stage. This occurred because he started at too high intensity.
- DSS decreases in the second half of the FTP test.
- As he enters the final stage, Foot AR and Q1 of the right foot become bigger, and the difference grows between the left and right feet. As riding becomes more difficult, he tries to maintain power using his dominant right leg.
- Pelvic Tilt becomes unstable.
There is a lot of posture adjustment; he cannot relax and the lower back becomes uncontrolled.
As pedaling becomes more difficult for Yokotsuka, his DSS decreases (it is smooth if focusing only on the movement of the feet), but the left-right difference of each range expands and the waist also starts to become very uncontrolled. The decrease in DSS is thought to be the result of compensatory motion such as unsettled movement of the lower back and the expanded left-right difference. Pelvic Tilt becomes unstable. There is a lot of posture adjustment; he cannot relax and the lower back becomes uncontrolled.
Athlete: Kouzai, Top amateur TT specialist
- This is an ideal FTP test, with power maintained until the end, and a boost at the finish.
- DSS increases as he enters the final stage.
- Differences grow between left and right in all ranges as he enters the final stage.
- Pelvic movement is stable until the end.
- Compared to Yokotsuka, the movement of the pelvis is stable even in the final stage, but fatigue causes both the left-right difference and DSS to increase. Kouzai can be said to be the type of athlete whose fatigue appears not in the lower back, but in the feet.
- Where fatigue appears, and in which MPI, depends on the athlete. The FTP test for setting the standard of power training is very effective by using the TYPE-R as a means to understanding the characteristics of the athlete.
- Of course, in bicycle road racing, movements are different in various situations (when climbing or on the flat, when seated, when standing, etc.), so athletes’ characteristics should be studied with reference to more workouts in addition to the FTP test.