It's very interesting what he is saying. I've been trying like a son of a gun to track down the origins of this idea. Because almost always the data is being used incorrectly when you find these gems. The idea that endurance training may not benefit 'twitch' isn't new, and my experience tends to support that, sort of, but the notion that it's actually bad from a training standpoint? That I need to look deeper for. Certainly fatigue issues will be apparent after an endurance workout, but a lingering negative effect??
The closest I've come is work done by him showing benefits of strength training for endurance athletes, and that resistence training should be done in place of some endurance and not as a supplement to it or because of fatigue you may negate the gains or even get a negative net. but I've got to wonder if this research hasn't been turned on its head to produce an unintended conclusion. And certainly with Haff's background you'd have to imagine he's done extensive work in the area of 'twitch'. so you'd think a more direct study would be out there.
But this original research done by Haff has eluded my google searches. If you find it let me know, I want to read it.
TY
