But actin and myosin are the same weight in all humans. As for water, the water that bodybuilders lose when they restrict Sodium before a show is subcutaneous. I think that the water that composes the muscle tissue cannot be removed because it's a structural part of the muscle, just like the contractile protein part. As for tendoms and ligaments, they're factored in with the rest of the structure and not the muscles per se. The point I'm making is that, if the raw materials that compose the muscles are the same and weight and the physiological configuration is also the same, then any increase in weight must occur concomitantly with an increase in area. The difference in fast-twitch fibers between the two is irrelevant, because I think most of the difference between the two types has to be with how the mitochondria synthesizes ATP, and the materials are the same. There are material that, due to their atomic configurations, can be "squeezed"in a smaller area and weight more than the same material in a given area. Two examples are rubber and water. Rubber has molecules that are naturally elastic, so you can squeeze more of it in the same surface ara. Likewise, when water is frozen, the molecules vecome closer to each other, hence a cube of ice weights more than the same size of water. Unless you can demonstrate that Dorian's and Ronnie's muscles are composed of different materials with different weights, then the point is mute. Like I said, actin and myosin weight the same in all humans and the water lost during the few last days leading to a show is mostly subcutaneous, so this is highly unlikely.
SUCKMYMUSCLE
No my friend, actin and myosin which make up the sarcomere which is the contractile portion of muscle cannot change. However, your post is wrong on two counts. First, you never only lose water subcutaneously. Trust me, bodybuilders are relatively intravascularly volume depleted when they compete. That is why they use diuretics; it causes sodium wasting in the renal tubular (trust me on this). Second, the water in muscle is easily moveable in and out of the muscle. That is why you cramp when you are dehydrated. The electrolytes like potassium and sodium are lost during exercise. Thus, water follows them out and a cramp occurs. The treatment is hydration with water and electrolytes. Also, fast twitch and slow twitch fibers differ in the amount of glycogen and water is held in them. It ma be minute, but it is present. Finallly, water is less dense in its solid form. If it were not so, an ice cube would floate. Check in the free link. Remember, also Sucky, a muscle also has fat amongst the myofibrils. If Dorian got rid of the same amount of fat and had less water (read any physiology text and you will see that dehydration, which these guys are essentially doing, encompasses the vascular and interstitial space), his muscles cubic inch by cubic inch would be denser. Better analysis, if I took a cubic inch of Rosanne Barr's thigh (it is the quadricep my friend), would here muscle be as dense as Dorian's? Hell no. It is not because of the actin/myosin component; I agree with you there. It is because of the increased water and fat. Link to proof and any google reference to show that frozen water is less dense than an equal amount of liquid water.
http://en.wikipedia.org/wiki/Water_(molecule)
