Is running good for gaining weight and building up muscles or does it burn more calories (fat) than you gain in muscle mass?

No, to loose weight. Running is used primarily to loose or maintain weight, it can be a useful exercise to incorporate into a training program, but it does burn calories and is definitely not used to gain weight or muscle mass.

Related Questions

Might heavy lifting burn fat while still building muscle mass?

Diet and exercise. Are the key. Watch your calories, increase your baseline metabolism by working out; this increases muscle mass and you'll burn more calories. And maintaining a positive nitrogen balance by eating enough protein is also important for building muscle mass. Don't expect miracles overnight, but set a reasonable goal to look better in a month and go from there. Read more...

Does sleeping in a cold room burn calories? Can it also make us lose muscle mass?

Yes/no. Simply sleeping in a cold room won't burn any more calories but shivering will. However, you probably won't be able to sleep if you're shivering all night and you could get sick. Muscle mass won't be affected by sleep alone. Read more...
Not much. Your body is constantly burning calories, that is the BMR, basal metabolic rate. Does the BMR increase in a cold room? If you are shivering, then certainly. There is a significant muscle building during sleep, not muscle loss. Read more...
Calories burned. You burn small amount of calories when you sleep. Less than when you exert yourself or are awake. Unless you are actively shivering you won't likely burn more calories in a cold room than in a regular room. You generally burn more calories in a warm environment. If you don't actively use your muscles you will lose muscle mass. Best way to burn calories and maintain muscle mass is exercise. Read more...

I want to lose weight quickly for martial arts. Is there any way I can burn fats and gain muscle mass very quickly?

Avoid shortcuts. Weight training will help build muscle and burn fat, but is only part of the answer. Your nutrition will play a bigger role in reaching your goals, and you also need to incorporated sufficient rest and recovery into your workout regimen. Read more...