In DragonBallz Goku and Vegeta train in gravity chambers.Chambers that in the room gravity can be hundred of times greater then it is in earth. I was just wondering if someone could make a chamber where gravity was greater then earth’s could this be something beneficial for athletes,bodybuilders,ect to train in or would it produce to much wear and tear on the body.Could a chamber with less gravity then normal be good for rehabilitation from workouts?any questions.
only in sci-fi dude.
Aside from those nifty g-force machines that pilots and astonauts are trained in, this isn’t going to happen anytime soon.
A quick lesson.
Basically gravity is the pull of a sufficently dense and heavy object.
Now consider the whole planet earth under your feet makes you weigh however much you weigh.
going a little light on the specifics here, but basically, if you wanted a room that made your body only twice as heavy, you’d need to create a local space under your feet that had all the matter in the earth contained in it, but 1/2 the size.
Dragon Ball Z RULES!
T: It is a lot easier than that. Gravity can be artically created using centrifical (sp?) force.
How bout using a weighted vest? Pretty darn close.
centrifugal force
um…weight training is the same thing as an increased gravity chamber.
v2 explain? how is weight training the same as a gravity chamber?wouldn’t in a gravity chamber it would be different from weight training because it would be like your whole body was up against resistance the whole time you would be in there and you would have complete range of motion, it would probally be most equivalent to wearing a weighted suit.
Our experience with gravity is as acceleration. For example, have you ever noticed that when an elevator starts going up you feel as though gravity has increased? That’s because the elevator is accelerating up, or conversely, you are accelerating down against the elevator. If the elevator goes down, you have the experience of lessened gravity.
This being said, people can barely withstand more than a few Gs. We just aren’t built for it, structurally. And if you did too much jumping at 3Gs, you’d snap your legs like twigs, most likely.
There is actually no such thing as centrifugal force, it is just the body in motions tendency to keep going in a straight line. (Newton anyone?) In the movie industry, when they film a space scene where the astranauts are weightless, they build a set in a large cargo plane. The take it up in the higher atmosphere and begin a steep dive. The acceleration towards the earth is equal to that of the acceleration of gravity and thus you become “weightless.” You could reverse this process and accelerate away from the earth. This would be quite a rediculous way to train!
A lot of the astronaut training is done under water for the effect of lessening gravity. The only way to simulate increased gravity (in any sustained manner) is through the use of centrifugal force. Unfortunately, it’s far too impractical to do on a large scale. You could simulate it (looseny) by doing a full-body distribution of weights similar to a weight vest (you’d have to include your arms, legs, and head (which I wouldn’t recommend).
Jeff is on the money, there is no such thing as centrifugal force. However there is a centripetal, or center-seeking, force. There are carinval rides where you stand in a hollow cylinder and the thing spins around like mad and you feel that you are being stuck to the wall of the cylinder. In theory, if you turned the whole horizontal, it would work. In fact, I believe astronauts do this to imitate gravity while in space. However, on earth, it sounds excessivly expensive and as little dangerous. Beside, they can fly in Dragon Ball Z, they need extra gravity to train.
weight training is simply increasing “gravity” on a specific limb or muscle group. Yes it isn’t going to be a static load on the entire body like a “gravity chamber”. A gravity chamber would turn you into a slug and compress your joints and vertebrae, not something that would be beneficial. It makes for better reading than for practice.
There is indeed such a thing as centrifugal force. While it is due to the tendency you described, there is still force (massxacceleration). The object is accelerated towards the center of the circular motion.
Centrifugal force: a force that apears to cause a body that is traeling around a center to fly outward and off it’s circular path.
It's just the term used to describe the action.
Some ancient martial arts used mud or clay training. The trainer would get in to the mud and then preform his exercises against the resistance of the mud. The form of training got a brief flash here in the US by none other than our favorite natilus author.
Some martial arts practice in water so that the water provides resistance. There are many training tools on the market today for water training.
Arg. Correction, I saw centrifugal and thought centripetal. Apologies. Centrifugal force would mean a force directed away from the center, which is inaccurate, the acceleration (and hence force) is directed at the center.
While we’re at it you can just magically fly to the nearest neutron star and train there. A spoonful of a neutron stars material would outweigh a mountain. (no joke about it outweighing a mountain)
Flash Gordon’s gym. Individual rooms, electromagnetic resistance generated from walls, ceiling, and floor. You have metallic bands around your wrists, ankles, wherever. You dial in the amount of resistance for a specific exercise, then perform the movement against the EM. Would have both concentric and eccentric. Would probably be most effective for linear movements.
In a case like a spinning top, what causes the force to the outside is actually angular momentum. At any given point, the object “at the end of the string” is trying to move away from the center of rotation. It is actually trying to move in a straight line, not in a circle. This why when you spin something on the end of a string, you feel a pull – not in the direction of rotation, but away from the rotational center. You are “pulling” the object back towards the center thousands of times per rotation. It is easier to understand if you picture it as mutliple lines exiting the surface of the spinning object every few degrees in a direction away from the center. As for whether acceleration / angular momentum can simulate gravity, the answer is exactly. One of the results of Einstien’s general relativity is the “Postulate of Equivalence” which shows that there is no difference between gravitational acceleration and acceleration provided by one object or force acting on a second object. A large wheel like a giant hamster wheel could be used to produce artificial gravity of whatever strength would be desired. You could get inside and max out on 10 lb squats. Unfortunately, it would not work because of the deliterious efeects of multiple G forces on circulation and the joints. Also, to compensate for the earth’s gravity, you would have to both rotate and precess the wheel around its axis, much like a gyroscope. In other words, you would have to spin it in 2 axis’.