on dynamic days...why the fast lowering

[t3c]

I forgot the difference between eccentric and concentric and its pretty early in the morning lol. But I train WSB and I was wondering why they lower the weights so fast while training. I tried a little experiment on speed bench last week. I lowered it slow and exerted as much force as i could on the way up. My form was alot better, i stayed tighter and I was faster.

whats the deal with this?


thanks in advance

 

[endpoint]

better use of the stretch shortening cycle?

kinetic energy?

waiting for other imput

 

[casualbb]

Good question. I know that concentrics and eccentrics differ with respect to their force velocity curves.

With concentrics, the faster the velocity of contraction the less force produced. With eccentrics it's the opposite. I figure both ways you're trying to get the muscle to produce force as quickly as possible, so hence both movements are fast.

That's just my guess though.

-casual

 

[coolcolj]

Good question. I know that concentrics and eccentrics differ with respect to their force velocity curves.

With concentrics, the faster the velocity of contraction the less force produced. With eccentrics it's the opposite. I figure both ways you're trying to get the muscle to produce force as quickly as possible, so hence both movements are fast.

That's just my guess though.

-casual

Nope your wrong

A faster eccentric does build up more stretch reflex, so you can generate more force on the concenc but if you drop it too fast then your muscles spend more time trying to reverse the weight, and energy too.

The faster you push the concentric the more force your generate and the more tension is exerted on the muscles, the greater the number of fiber recruited. You just don't blast it up and then coast you keep accelerating the weight up. Moving something at a constant rate means you are only exerting just enough force to keep it moving, but if your acclerate it, you are exerting the maximal amount of force your muscles are capable of generating witin reason - ie forces equal to or more than your 1RM. It's just like an engine moving a car. The faster the accleration the more torque and horsepower your using.

the best way is to lower it under control at a rate of 1 to 1.5 secs and as you near the the bottom 2-3 inches you free fall it to activate the stretch reflex and blast it up.

 

[b fold the truth]

I think that people get lost in the idea of 'faster is better'. Sure...you should take it down fast...but not at the speed of light!!!

B True

 

[JOKER47]

Take it down fast, but under control.

I get more from my speed work when I lower fast. My "theory" is that the same muscles use to push the weight up are the same ones used to stop the weight on the way down. Twice the benefit from the same movement.


.02,
Joker