>>9433
>is there any difference between number 2 and number 5? Either this feature exists or not there is no point in numerical value.

It's true that those simple numbers don't mean much, but there's a way to make the numbers more meaningful. Instead of using poorly defined numbers, we can break the character's body down into parts and quantify them, so instead of having a number that only represents strength, we can have a number which represents the mass of his/her muscles, perhaps measured in pounds. That way we represent both the strength, the weight, and the appearance of the character with a single far more meaningful number.

There are four major components to a person's weight:
1) the vital parts that everyone has, like intestines, lungs, liver, and brain. These weigh roughly 20 lbs and this weight must be included in every living person.
2) the weight of bones, skin, and other tissue that depend on how tall the person is. This is roughly 6 lbs per foot, or 0.5 lbs per inch. Let's say that this mass plus the vital mass is the base mass of the person, before muscle and fat.
3) the weight of muscle that gives a person her strength. The normal healthy amount of muscle depends on a person's size. Minimum normal muscle for a female would be 0.5 x base mass, and minimum normal muscle for a male would be 0.8 x base mass. This is what we'd expect for someone who doesn't especially exercise, and any lower would start to be called frail. Muscle mass can go up to about 4 x base mass, at which point we have a hugely bulky person like a champion weight lifter or a body builder like Ronnie Coleman.
4) the weight of the person's fat. Even very slender people will tend to have at least 0.1 x base mass in fat, just to prevent bones from showing through skin, and females usually have at least 0.25 x base mass just to look normal. Any less than this isn't just slender; it's obviously unhealthy. On the other end, men start to look obese at 1 x base mass, and women at 1.5 x base mass. For women their fat load includes their breasts, with a total of about 0.5 lbs per cup size, with AA = 0 lbs, A = 0.5 lbs, B = 1 lbs and so on.

The maximum fat mass is determined by how much the person can lift and carry. A person's fat is counted with the weight of her weapons, armor, and other equipment, since it is all part of the load that must be carried. A person can lift about 3 times the weight of her own muscles, but only with great effort. If the weight of her fat exceeds this, then she'd be immobilized by her own weight. A person can walk around with a load about equal to the weight of her muscles, but this would make for a slow, exhausting march, so this is the practical limit of a character's load. A person can carry half the weight of her muscles quite comfortably, so an agile character should carry near this weight or less.

In reality muscle mass doesn't directly correspond to an equal amount of lifting strength, but it's close enough to not be worth complicating these numbers.