[quote]Chris Aus wrote:
okay i wasnt clear
someone stated a slower cadence recruits more fibres than a faster cadence…
This is not true.
The number of muscle fibres and force are related…
Now a slower cadence given the same weight is a result of less force being produced and therefore less muscle fibres being recruited. By definition if more muscle fibres were being recruited you would move faster…
The slow eccentric will use some more muscle fibres than a fast unresisted eccentric for the first half BUT during the slowing down transition and concentric phases the muscle recruitment will be MUCH higher as the forces will be MUCH higher and overall motor unit involement will also be much higher.
The point is you still have to catch it at the bottom Because The faster it’s moving and the less time you have to decellerate it the greater the force required.
Think about what happens when you step on some scales slowly vs when you jump on them…
lower a weight to the floor slowly
drop the same weight onto the floor.
which hit the floor with more force???
As for lifting as fast as you can, it is a way of recruiting musculature(?), not the most effective.
it is the most effective. YOu later talk about using more weight and that causing slower movements ofcourse that is true but to increase recruitment you should be trying to move the weight whatever intensity that may be as fast as you can.
put it this way, for any given weight the faster you move it the more units you will recruit.[/quote]
Will: what is C.A.T.?
Chris, let me discuss this point by point, if I may. Some of my thoughts/opinions will certainly make me unpopular on this site, but at least notorious.
1)Slower cadence does recruit more fibre per set, whereas, explosive/ ballistic training (EBT) will certainly give more force for the first few exercises, up to 40-45% more;
2)With EBT, the athlete will be using lighter weights, thereby utilizing more speed. With a slower cadence, the athlete is encouraged to utilize heavier weights, therefore, slower speeds are necessary.
3)At the bottom of the EBT cycle, more muscle fibres are recruited than when momentum is in play. This is obvious. I would suggest, however, that for the fraction of a second that these fibres are employed, the muscle is NOT utilizing as many fibres as during the 4+ seconds of eccentric. Further, at the bottom end of the cycle, when the muscles exert maximum force, the tissues are at their weakest point. Probability for injury goes way up at this point. Also, is this force due to muscular energy or stored force? Most likely, stored force;
4)The faster you move, the more units you recruit. Only at the beginning and end of the movement.
Bottom line, when you use the same weight, there is little, if any, difference in total force produced between slower cadences and EBT.
For me, and the athletes that I train, a slower cadence is utilized for safety purposes. And yes, we see some serious development in strength and size.
Tyler.