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1 kg of muscles is not heavier than 1 kg of fat. By the way, professional body builders who go to the gym a couple times per week, increase their diet, optimiz

1 kg of muscles is not heavier than 1 kg of fat. By the way, professional body builders who go to the gym a couple times per week, increase their diet, optimize their diet, etc. are happy to gain 2,5kg of muscle a year. So no, muscle gain has nothing to do with weight gain/loss. Successful diets are a lot faster, and most exercise based programs fail in studies.

lottin 5y ago
An untrained individual who starts training with weights will gain much more than 2.5kg of muscle per year. As the individual accumulates muscle mass the rate of muscle gain will decrease gradually.
- bayesian_horse 5y ago
  Any concrete numbers or sources? I pretty much doubt that it is much more. Or even any more at all. No matter if you are trained or untrained, the number of muscle cells doesn't change. Only the amount of muscle fibers inside the cells changes.
  - lottin 5y ago
    Check this out: "The rate of strength increase differs considerably between untrained and trained individuals (148), as trained individuals have shown much slower rates of improvement (83,107,111,221). A review of the literature reveals that muscular strength increases approximately 40% in “untrained,” 20% in “moderately trained,” 16% in “trained,” 10% in “advanced,” and 2% in “elite” over periods ranging from 4 wk to 2 yr. [...] The difficulty in continuing gains in strength appears to occur even after several months of training. It is well documented that changes in muscular strength are most prevalent early in training (92,185). (Progression models in resistance training for healthy adults. Med Sci Sports Exerc. 2002;34(2):364-380.)
    - bayesian_horse 5y ago
      That only talks about strength, not muscle mass. Also there is a difference in what kinds of muscle fibers are added, and which are removed or replaced by others. Some are better for endurance, others more for peak strength. My main point is that it is impossible to gain muscle mass faster than you can loose body fat with a proper diet. A proper weight loss in my opinion starts at one kg a week. Extremely obese people should, with medical consultation, aim much higher, though. There is no way you can gain 52kg of muscle mass in a year. Also for shorter periods it doesn't add up.
Smithalicious 5y ago
I don't think this is a fair comparison. Body builders are at the very limit of how much muscle they can gain, someone who's out of shape can gain muscle a lot faster. That's not to say that you're going to gain muscle as fast as you lose fat, but the 2.5kg number is misleading.
sandworm101 5y ago
>> professional body builders who go to the gym a couple times per week I've never heard of a professional body builder, or any other athlete, who only went to the gym a couple times every week. The handful of semi-pro body builders I have known are more likely to be at the gym a couple times per day.
- xdfgh1112 5y ago
  And juicing most likely, so the 2.5kg figure doesn't really apply

lottin 5y ago

An untrained individual who starts training with weights will gain much more than 2.5kg of muscle per year. As the individual accumulates muscle mass the rate of muscle gain will decrease gradually.

bayesian_horse 5y ago
Any concrete numbers or sources? I pretty much doubt that it is much more. Or even any more at all. No matter if you are trained or untrained, the number of muscle cells doesn't change. Only the amount of muscle fibers inside the cells changes.
- lottin 5y ago
  Check this out: "The rate of strength increase differs considerably between untrained and trained individuals (148), as trained individuals have shown much slower rates of improvement (83,107,111,221). A review of the literature reveals that muscular strength increases approximately 40% in “untrained,” 20% in “moderately trained,” 16% in “trained,” 10% in “advanced,” and 2% in “elite” over periods ranging from 4 wk to 2 yr. [...] The difficulty in continuing gains in strength appears to occur even after several months of training. It is well documented that changes in muscular strength are most prevalent early in training (92,185). (Progression models in resistance training for healthy adults. Med Sci Sports Exerc. 2002;34(2):364-380.)
  - bayesian_horse 5y ago
    That only talks about strength, not muscle mass. Also there is a difference in what kinds of muscle fibers are added, and which are removed or replaced by others. Some are better for endurance, others more for peak strength. My main point is that it is impossible to gain muscle mass faster than you can loose body fat with a proper diet. A proper weight loss in my opinion starts at one kg a week. Extremely obese people should, with medical consultation, aim much higher, though. There is no way you can gain 52kg of muscle mass in a year. Also for shorter periods it doesn't add up.

Smithalicious 5y ago

I don't think this is a fair comparison. Body builders are at the very limit of how much muscle they can gain, someone who's out of shape can gain muscle a lot faster. That's not to say that you're going to gain muscle as fast as you lose fat, but the 2.5kg number is misleading.

sandworm101 5y ago

>> professional body builders who go to the gym a couple times per week I've never heard of a professional body builder, or any other athlete, who only went to the gym a couple times every week. The handful of semi-pro body builders I have known are more likely to be at the gym a couple times per day.

xdfgh1112 5y ago
And juicing most likely, so the 2.5kg figure doesn't really apply