[quote]Bri Hildebrandt wrote:
You can’t compare relative strength sports to absolute strength sports. Relative strength sports require using your body as the main implement. Absolute strength sports requires you to impart force upon an outside object. Olympic lifts, powerlifting, shotput, discus, strongman, linemen in football, are all examples of absolute strength sports.
The most important equation here is F=ma, Newton’s 2nd law.
“The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.”
The greater the outside object’s mass, the greater your own mass comes in to play. If you can increase your own mass while diminishing the loss of acceleration you will have a net increase of force produced. That’s why linemen in football are so large, so it makes it easier to push the opposing team. That’s also why shotput, discus throwers, strongmen, weightlifters, powerlifters, etc… use extra fat to their advantage. Bench press would be less so due to there being less mass imposed against the bar(arms), but the extra fat and water in the joints do in fact produce more leverage allowing greater weights with less chance of injury.
Even though Rezaz produces less overall acceleration than Dimas he more than makes up for it in mass thus able to generate more force against the bar and ultimately greater lifts.
Relative strength sports like sprinting, jumps, gymnastics, etc… require the athlete to have less overall mass to try to maximize acceleration. Since you’re trying to escape the earths gravity(force) having less mass will be an advantage. a=F/m Looking at the equation you can see by reducing mass your accelation will naturally increase. That’s assuming your strength(F) doesn’t diminish too much when trying to lose weight. Since fat is mostly non-functional weight you can see how this will improve a relative strength athletes performance.
To reiterate, the main difference between relative and absolute strength sports is what object you are trying to move in space. Relative(yourself) vs absolute(something outside yourself).
Hopefully that made some sense. :)[/quote]
2 bodies colliding is different to weightlifting. In oly lifting the force is coming from the legs which have to lift all the upper body along with the bar, any extra fat will cause extra weight for the legs to work against. The more weight the legs have to work against the slower the bar will travel. The slower the bar is traveling the less chance you have of getting it to the chest and above the head.
F=MA
F comes from the legs mainly
M is the bar plus the extra fat
A is the speed of the bar
The mass is working against the legs so more mass will make it harder for the legs to move the bar. So if a 100kg man and a 150kg man c&j the same weight, whos legs have created more force?
Answer the 150kg man.
Take the same 2 men that c&jd the same weight to a leg press and their leg presses will differ because the only weight the legs have to push now is the weight on the bar, meaning the 150kg man will lift more.
In sports like football the whole body is carrying the force so the extra weight will be a complete advantage.
For example if 2 people were running at each other, person A weighed 100kg and was running at 10ms, person B was 200kg and running at 8ms.
Person B will be carrying more force so he will knock person A over.
There is evidence of this at my gym were a guy who weighes 22stone can only squat 220kg but he fills the leg press untill there is no room, compare this to me who is squating 180kg and leg presses 320kg (i weighed 13stone). So he only squated 40kg more than me yet his leg press was probably double (depending on what the leg press holds), “EXPLAIN”.
Hopefully that makes some sense. This is my last post im sick of trying to explain this.
