10/09/2025
The first exercise is a great example of eccentric overload. The idea is to use both legs to create a higher demand on the eccentric phase of the movement (lowering) that is being performed with one leg. Naturally, you can create more force with two legs than you can with one leg, but you can use this principle to overload the single leg, lowering portion of the movement. That essentially is the definition of high level deceleration
The second exercise focuses on an overload principle but done so isometrically. The idea here is to pick a range of motion that the person either struggles with or needs to get stronger at and then we hold long periods of time with high levels of load as close to fatigue as we can get
So while one exercise is a deceleration emphasize movement and one exercise is an isometric. Both of them have principles that will make an athlete tolerate and improved performance in deceleration.