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5 Mistakes Beginners Make in the Gym And How to Fix Them Today

By Will Duru, BSc (Hons) Sport and Exercise Science, Award-winning Personal Trainer with over 10 years of experience in strength training and optimising recovery.

You walk into the gym. Rows of machines. Barbells. Dumbbells. Everyone is doing something different. It is easy to get lost. I have been training clients for over 10 years, and I see the same mistakes from beginners every single time. Here are the five I see most often.

5 Mistakes Beginners Make in the Gym And How to Fix Them Today

1. Changing Workouts Every Week

Many beginners jump from one routine to another. One week, it is push, pull, legs. Next week, it is something from Instagram or TikTok.
Your body needs repetition to improve. Pick 6 to 8 core exercises. Train them for several weeks. Track your weight, reps, and sets. If your bench press goes from 60 kg for 8 reps in week 1 to 70 kg for 8 reps in week 4, that is real progress. You cannot measure that if you change everything every week.

 

2. Using Too Much Weight
Beginners often sacrifice technique to lift heavy. The bar moves, but the muscles you want to train do not work properly.


Focus on control first. Choose a weight you can lift with good form for 8 to 12 reps. Stop 1 or 2 reps before failure. Your muscles grow from tension and consistency, not ego.

 

3. Skipping Compound Movements
Many beginners spend most of their time on bicep curls, tricep pushdowns, and cable flyes. Those have value, but they should not be the foundation of your training. 

Compound exercises like squats, deadlifts, bench press, pull-ups, rows, and overhead press train more muscle at once and build strength faster. Spend most of your gym time on these. The small stuff can come at the end.

 

4. Not Tracking Workouts
A lot of people rely on memory. They think they lifted 20 kg last week. Maybe it was 16 kg. Progress becomes random.Write down the weight and the reps after every set. If your incline dumbbell press goes from 18 kg for 10 reps to 22 kg for 10 reps in a month, you know the work is paying off. The 12REPS app makes this easy. Log your sets, and your progress is tracked for you.

 

5. Expecting Fast Results
Beginners often expect big changes in a few weeks. Muscle and strength take time. The people who succeed do something simple. They show up. They train consistently. They improve slowly.


After 4 weeks, your strength starts improving. After 12 weeks, you see visible muscle change. After 12 months you see a major transformation. Most people quit before they get there. Do not be one of them.

 

Download the 12reps app

 

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Will Duru

Level 4 Qualified Personal Training Coach Sports & Exercise Science BSc (Hons)

Disclaimer: The ideas in this blog post are not medical advice. They shouldn’t be used for diagnosing, treating, or preventing any health problems. Always check with your doctor before changing your diet, sleep habits, daily activities, or exercise. WILL POWER FITNESS isn’t responsible for any injuries or harm from the suggestions, opinions, or tips in this article.

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