But did Fadi not say otherwise? As I recall he said that no matter what the lifting speed, muscle fibers will still be recruited due to Size Principle?
If your 10 rm is 25 kg on db curl, how does lifting it faster change the recruitment of motor units?
Sorry but you need to get your terminology right.
Muscle fibres = All or Nothing Principle.
Motor Units = Size Principle.
Some people think they know what they're talking about but have a lot of holes in their post's.
Like eccentric strength! It's stronger by about 30% when compared to concentric strength and IS NOT more time efficient because it will take longer to fatigue. The point of a 4020 tempo, for example, is to make the movement inefficient thus using more energy and keeping the muscle under tension
longer causing more damage to the muscle.
Use any rep speed you want, it's all the same.
Or Motor Recruitment. Lifting an object faster does change motor unit recruitment due to the increase in muscular tension. Bazza was the only who has gotten this from the last few pages I've read!
Maximal effort is required to recruit the largest motor units, whether that be via pathways of maximal load, submaximal load with maximal force or submaximal load to/ or near to failure.
Just use the heaviest weight you can and lift as fast as you can under control.
Contradictory. Cannot move the heaviest weight you can as fast as you can, just as the opposite is true. Try throwing a table tennis ball at a window as hard as you can to see if you can break it.
Thank you Fadi, this will be a good read. I'm not sure if Kraemer always incorrectly inferred that Maximal Loads were the only way to recruit the HTMU's, his book with Zatsiorsky seems to follow the same lines as Carpinelli's paper regarding the Size Principle.
