Which phases are Eccentric & Concentric?

This article helps simplify the braking and concentric phases of each jump.

In the Hawkin Dynamics software, we do not name our phases "Eccentric" and "Concentric". Instead, we use braking and propulsive. The research article we use for this can be found here.

Hawkin Dynamics Stance:

• The answer to this is simply because during the braking phase (red), there are both eccentric and concentric muscles actions occurring to stop the downward movement of the athlete.
  • Other softwares and research papers commonly refer to the braking phase > "eccentric deceleration phase" or "eccentric phase". We do not support these terms.
  • If you are coming from the Sparta software, they have other names for metrics. Their reference to "Load" is braking rate of force development (i.e. Braking RFD)in our software. 
  • Braking phase begins once force has returned to system weight and ends at zero velocity, right before the start of the propulsive phase.
• On the contrary, the propulsive phase (green) is also expressed by both eccentric and concentric muscle actions.
  • Other softwares and research papers commonly refer to the propulsive phase > "concentric phase" or "propulsion phase".
  • If you are coming from the Sparta software, "Explode" is Average Propulsive Force in our system, and "Drive" is Propulsive Net Impulse. 
  
  

Need additional help?

Email: techsupport@hawkindyanmics.com