Is lifting weights safe for teenagers? Gym safety rules for beginners

Quick answer: Yes. Properly designed and supervised resistance training is considered safe for young people, and it hasn’t been shown to stunt growth. Most problems happen when people use equipment wrongly, lift more than they can control or mess about. Learn each exercise with a light weight first, never lift to impress anyone, stop if you feel sharp pain, and never take steroids or SARMs.

“Lifting weights will stunt your growth.” If you’re 16, there’s a good chance someone has told you this. Probably a relative, possibly at a family dinner.

It isn’t true. Properly designed and supervised resistance training is considered safe for young people and hasn’t been shown to stunt growth. Young people can gain strength with low injury rates when training is supervised and technique comes first.

Gym training can be very safe. Problems tend to happen when people use equipment wrongly, lift more than they can control or behave recklessly. Here’s how to avoid all three.

Learn before you load

Use these five steps every time you try something new:

1.        Learn the setup

2.        Practise the movement

3.        Use a light weight

4.        Get feedback if you can

5.        Add weight gradually

Good movement skills make it easier to safely progress to heavier weights later. Learn how to do an exercise before trying to make it hard. My beginner gym routine uses machines for exactly this reason.

What is ego lifting, and why does it matter?

Ego lifting is choosing a weight because you want to impress people, not because you can control it.

Use a weight that lets you:

•          Control the movement

•          Keep good technique

•          Finish the reps you planned

•          Stop the set safely

The number on a dumbbell doesn’t matter if the exercise is done badly. Training is about improving your body, not proving something to the person next to you. Most people in the gym are far more focused on their own training than on what you’re lifting.

How to use gym equipment properly

Before using a new machine or piece of kit:

•          Understand how it works

•          Adjust the seat correctly

•          Check pins and clips

•          Use safety catches where there are some

•          Keep the area around you clear

•          Ask for help if you’re unsure

Never mess about with gym equipment. Never push, distract or challenge someone while they’re lifting. Proper supervision, sensible progression and the right equipment all reduce the risk of resistance training for young people.

When do you need a spotter?

Some exercises can trap you under the weight if you fail a rep. The barbell bench press and barbell squat are the obvious two.

If you train these:

•          Learn how the safety equipment works

•          Set the safety arms correctly

•          Use a suitable spotter when you need one

•          Don’t attempt maximum lifts alone

If you don’t know how to safely fail an exercise, ask someone qualified before you use heavy weights.

Pain or normal effort? How to tell the difference

Training can feel uncomfortable. That’s different from something being wrong.

Normal: keep going

Not normal: stop

Muscles burning

Sudden sharp pain

Heavy breathing

Severe pain

Muscle fatigue

A joint giving way

Numbness or tingling

Significant swelling

If something feels suddenly wrong, stop. Don’t carry on because someone told you to “push through the pain”. Persistent or significant pain should be checked by a healthcare professional. Normal next-day muscle soreness is covered in rest days, sleep and sore muscles.

Steroids: why they’re NEVER a shortcut

Anabolic steroids are prescription-only medicines that some people misuse to build muscle and performance. They’re completely different from normal supplements like protein powder.

Misusing them can cause serious physical and psychological side effects. The NHS also warns that steroid misuse during adolescence can affect bone development and potentially restrict normal growth. They’re not a shortcut a young person should experiment with. Don’t ever take them.

SARMs: not a “safer” steroid

SARMs stands for Selective Androgen Receptor Modulators. You might see names like Ostarine, Ligandrol or RAD-140. They’re sometimes sold online as a “safer” alternative to steroids. They’re not.

UK Anti-Doping says no SARM has been approved for human use by a medicines regulator, and that they’re illegal to sell or advertise as food or dietary supplements in the UK. They’re also banned in competitive sport.

Don’t take them. Don’t buy anything labelled “research chemical”, “not for human consumption”, “legal steroid” or “SARM” because someone says it’ll build muscle faster.

If someone offers you something

Tablets, injections, unknown powders, “muscle builders”, SARMs, steroids: don’t take them. You don’t owe anyone an explanation.

If you’re not sure what something is, talk to a parent, guardian, qualified coach or healthcare professional.

Ten gym safety rules to remember

1.        Learn an exercise before making it heavy.

2.        Never lift to impress someone else.

3.        Use equipment properly.

4.        Ask for help when you don’t understand something.

5.        Use safety equipment and spotters when you need them.

6.        Don’t attempt risky maximum lifts alone.

7.        Don’t push through sudden or sharp pain.

8.        Never take unknown pills, powders or injections.

9.        Avoid anabolic steroids and SARMs.

10.    Nothing in the gym is more important than your long-term health.

FREQUENTLY ASKED QUESTIONS

Does lifting weights stunt growth?

No. Properly designed and supervised resistance training hasn’t been shown to stunt growth and is considered safe for young people.

At what age is it safe to start lifting weights?

Supervised resistance training with good technique is considered safe for young people, including younger teenagers. Gym age rules vary, and many UK gyms let you train on your own from 16. What matters most is learning technique before adding weight.

Is it safe for a 16 year old to bench press?

Yes, with good technique, a sensible weight and safety measures in place. Set the safety arms, use a spotter when you need one, and don’t attempt maximum lifts on your own.

Are SARMs legal in the UK?

UK Anti-Doping says no SARM has been approved for human use by a medicines regulator, and they’re illegal to sell or advertise as food or dietary supplements in the UK. They’re also banned in sport. DO NOT TAKE THEM EVER.

How do I know if gym pain is serious?

Burning muscles, heavy breathing and muscle fatigue are normal. Sudden sharp pain, severe pain, a joint giving way, numbness, tingling or significant swelling aren’t. Stop and get it checked.

Want someone checking your technique?

The safest way to start is with someone watching how you move. I coach 16 to 21 year olds in my private gym in Guildford and online, with technique videos for every exercise. See coaching for teens and young adults. If you’re a parent reading this, my first gym checklist includes a short section for you.