New research indicates that overhead tricep extensions are significantly more effective at building muscle compared to cable pushdowns, with up to 40% greater muscle activation. This finding suggests that incorporating overhead tricep extensions into strength training routines can lead to superior muscle development in the triceps.
It seems they unpublished it: https://www.boxrox.com/overhead-tricep-extensions-cable-pushdowns-new-research-finds-one-builds-40-more-muscle-next-step-up/
Other sources :
https://www.strengthlog.com/overhead-cable-triceps-extension/
https://www.boxrox.com/triceps-exercises-ranked-worst-to-best-2-p82743327/
