As children grow in size and develop muscle mass, they also develop increased strength. These strength improvements are independent of training. In other words, children grow bigger and stronger until full maturity.
For example, the average six-year-old boy can do five press-ups, a 12-year-old boy can do 15 press-ups and 18-year-olds can do 25 press-ups. In contrast, the average six-year-old girl can do five press-ups, a 12-year-old girl can do 12 press-ups and an 18-year-old girl can still only do 12 press-ups. This is the usual pattern of development for boys and girls; they are both similar as young children, but post-puberty the boys' strength development accelerates while the girls reach a plateau.
Again; Strength training can work.
Strength naturally increases with age because of body growth and development of the neuromuscular system, but can strength in children be increased through training? The majority of the existing research provides convincing evidence that it can. One of the most important studies investigating the strength-training potential of young children was completed by Ramsay et al in 1990. They studied the effects of a 20-week strength-training programme on 9-11-year-old boys - specifically, elbow-flexion and knee-extension strength. The training programme comprised sessions of three times a week, 3-5 sets per exercise, performed at 8-12 Repetition Maximum intensity. This refers to weights that can only be performed 8-12 times with good form. Therefore, the training programme these boys undertook involved sufficient duration, intensity, volume and frequency to ensure that it would be an effective training dose.
The only way you're going to get "bigger" is weights. Running and cardio is good for lean muscle, but if you want to bulk up you need to lift or some kind if resistance training. Also, protein or creatine really helps in the muscle gain. But remember, it all takes time.
Sorry .. But if you wanna be a boxer ... Sit ups ain't that necessary . But you must try Push ups as much as possible !
Just try to get better & better in that push ups .. You just have to be obsessed in that .
Sometimes try shadow boxing .. Once in Southpaw stance .. Next time Orthodox stance .. 20 punches .. Right left ..Right left ..
& running is important ..
But sit ups .. I don't think that much necessary ..
& muscle doesn't comes in 1 day ..You've to keep trying .. #NeverBackdown
Masturbate
Im 14 and have quite literally no muscle. Even the 10 year old kids have bigger guns when they flex (so pathetic). Its weird because i feel like im suppose to be a power puncher since my dad is short like me but muscular. Im really getting self conscious about it im 14, 5'0. and 103 lbs. Are there any supplements or vitamins, or workouts or exercising techniques nothing crazy but just simple things. Also idk if this helps but i can literally do only 10 pushups but my cardio, situps etc is fantastic. Oh and id like to stay away from weights if possible. Thanks