Starting with a baseline test, athletes can track their progress, as their weight to strength ratio increases. (blog.bridgeathletic.com)
You are likely never going to increase your eccentric - to - concentric strength ratio by doing normal strength training (where the load is the same in both phases) because the force you exert to move the same load relative to your maximum capability is much lower in the eccentric phase, than in the concentric phase, mainly because of large strength differences between phases (Kelly et al. 2015; Duchateau & Enoka, 2016). (strengthandconditioningresearch.com)
Her physical strength ratio's against most of the bantamweight just didn't compare to the result she had at flyweight. (sbnation.com)