Kids can safely lift adult-size weights, as long as the weight is light enough. In most cases, one or two sets of 12 to 15 repetitions is all it takes. The resistance doesn't have to come from weights, either. Resistance tubing and body-weight exercises, such as pushups, are other effective options.

“Growing children should not lift weights with the goal of lifting as much as they can. ... Studies have suggested that weight training might harm a child's growth, lead to injuries or not increase muscle strength. But Dr. Nepple says parents should not worry. Lifting weights can help kids as young as 7 years old.

this is from online.

They put an age limit on everything these days. My kids four wheeler says age 16, but yet it's made for kiddos. I'm sure growth plates are still forming at these younger ages, but under supervision and add alil common sense, I dont see why they cldnt. My 9yr does pushups, situps, lunges, and scissor kicks everyday, Usually cause hes in trouble (beats timeouts and ass woopins). My 13yr I'll bring to the gym w me. Light weights and he thinks hes a man. Lol

My opinion is avoid over the head weights, anything that connects 2 joints like a bar when you bench press or your feet connected with floor(squats dead lift...) , extreme low weight( just enough to make them think they are doing something)

He should be using light weights and preferably concentrate more on using body weight, pushups, pullups etc. Heavy lifting is not recommended until formation of bone tissue is properly formed. Smart approach that's all.

IS THERE AN AGE LIMIT FOR CHILDREN TO START WEIGHT LIFTING?

They start on day one. First it's to get them to lift their head, then roll over, get up on their knees, etc.

Believe it or not, in a time not so long ago, in a land not so far away, kids went straight from diapers to lifting hay bales.

Grandma is rolling over in her grave in a fit of laughter right now, "What a hoot!"

I was under the impression that weight training before your teenage years can inhibit bone growth due to the tightening of the muscles ligaments tendons etc..I'm no doctor nor do I know for sure if this is true but my father always was a lifter and wouldn't let me use weights until I was 12 or 13...cardio body weight exercises like calisthenics and sports were always ok though..

Light weights at any age refine. Make sure they are light for him. If he lifts too much it could cause ligament; joint or muscle damage. Caution is the word.

Once I heard that starting to weight lifting at an early age might cause dwarfism. I don't know whether it is a myth or fact. Is there anyone has knowledge about that. Thanx...

I heard that when I was young, not sure how true it is but an awful lot of bodybuilders are very short.

But you know body weight exercises cant hurt , push ups , pull ups, dips, core and ab exercises.

I’m not sure but since I can remember I’ve been lifting my dad had a awesome home gym

https://www.mayoclinic.org/healthy-lifestyle/tween-and-teen-health/in-de...

Just so you keep the weights light he will be fine. I agree with the calisthenics.
I think it’s good for there self esteem.
In America there’s many folks with mental health issues. I think the body and mind go hand in hand.
It’s a proven fact that kids involved in sports do better in school.

Let me preface this with saying I don’t have kids and don’t plan on having them ever. I do have nephews tho.

At 6 id just have him do push-ups/pull-ups/lunges/squats. The classic bodyweight stuff. He could probably do pull-ups if you help him on the assisted pull-up machine and he was standing up (maybe?)

If I did have kids I’d probably wait til they were closer to puberty to start real weight training just for safety reasons, but bodyweight stuff, jumping, etc I don’t see a downside.

My dad was a bodybuilder when I was young, and he got me these plastic dumbbells filled with water when I was your sons age. They were 5lbs. If he complains about only doing bodyweight stuff, you could get him something like that so he feels like he’s working out like you too, but I’d focus mainly on bodyweight and let him do super light dumbbells.

side note. My weight plates are rubber coated and have handles. Last time I had my nephews (3 & 5 years old) over for the night, I had them see who could deadlift the biggest plate. There wasn’t a huge range of motion cuz they’re so short, so standing the plate on its side and having them grab the handle in pull a few inches was fun for them and pretty safe cuz I was right there. They started with the 10’s for a double, then did singles. The 3 year old pulled 25 and the 5 year old got the 45. They were really proud of themselves lol

Their dad bought them 2.5 & 5lb dumbbells and lets them do curls and rows lunges and shoulder press when he’s working out. It’s pretty adorable.