Mistakes to avoid when starting weight training
Everyone starts somewhere. And weight training, like any sport, has its pitfalls—classic mistakes that almost all beginners make, often without realizing it. The problem is that these errors slow down progress, increase the risk of injury, and, in the worst-case scenario, discourage people who could have made rapid progress with the right guidance.
At Society Sport Lonay, our fitness coaches in Morges see these mistakes every day in our weight training gym in Morges. In this article, they explain which ones to avoid—and, above all, how to correct them—so you can get off to a good start with weight training and see tangible results quickly.
Mistake #1 — Neglecting technique to lift heavier
This is the number one mistake beginners make at our gym in Lonay. The temptation to load as much weight as possible onto the bar is strong—especially when you see other members lifting impressive loads. But sacrificing technique just to impress others is a recipe for injury.
Poor technique during a squat, bench press, or deadlift fails to target the right muscles—and places enormous strain on your joints, tendons, and spine. Consequently, you risk an injury that could sideline you for weeks—causing you to lose all your gains.
The golden rule according to our certified coaches in Lonay: start light, master the technique, then gradually increase the weight. A perfect squat with 40 kg will yield far better results than a sloppy squat with 80 kg—and will keep you healthy in the long run.
Erreur n°2 — Ne pas avoir de programme structuré
Arriving at our gym in Lonay without a program is like setting off on a trip without a GPS. You’ll end up going in circles—the same exercises, the same weights, and the same stagnant results.
A structured strength training program precisely defines which muscles you work on a given day, the number of sets and repetitions you perform, how you increase the load week by week, and how you incorporate recovery periods. Without this structure, your progress will quickly stall—even if you regularly visit our fitness club in Lonay.
That is exactly why our fitness coaches in Morges offer a fitness assessment and a personalized program to every new member as part of our personal coaching service. This way, from your very first week at our gym in Morges, you have a clear plan—and every session brings you tangibly closer to your goal.
Mistake #3 — Trying to work on everything at once
Many beginners want arms, abs, shoulders, legs, and a V-shaped back—all at once. That’s understandable. But in bodybuilding, trying to work everything simultaneously often leads to not really working anything at all.
In fact, each muscle group needs 48 to 72 hours to recover after an intense workout. If you work the same muscles every day, they do not have time to rebuild—and do not progress. Furthermore, an overly demanding program quickly discourages beginners due to exhaustion and a lack of visible results.
Our certified coaches in Lonay recommend starting with a full-body program three times a week—exactly the format of our full-body class at our fitness center in Lonay. This format works the entire body in a balanced way, allows for sufficient recovery between sessions, and yields visible results quickly for beginners.
Mistake #4 — Ignoring recovery days
Following on from the previous mistake, many beginners think that the more they train, the faster they progress. That is incorrect—in fact, the exact opposite happens.
As we explain in our article on post-workout recovery, your muscles don’t grow during the workout itself—they grow during recovery. In other words, rest days aren’t wasted days; they are days when your body actively builds the muscle you stimulated at the gym in Lonay.
Our personal trainers in Morges recommend at least one rest day between intense strength training sessions, especially when just starting out. "Active recovery" days—such as a yoga or Pilates class at our gym in Lonay—are perfect for recovering without remaining inactive.
Mistake No. 5 — Neglecting the warm-up
Warm-ups are often viewed as a waste of time by beginners eager to start their workout at our gym in Lonay. It is a costly mistake.
A 10-minute warm-up is sufficient to raise muscle temperature, improve joint lubrication, activate the nervous system, and significantly reduce the risk of injury. Without a warm-up, your cold muscles and stiff joints are far more vulnerable to strains, tears, and sprains.
Our certified coaches in Lonay recommend a 5-minute general warm-up—on a stationary bike, treadmill, or rowing machine—followed by a specific warm-up involving light movements that mimic the exercises in the workout. This ensures your body is ready to perform from the very first repetition, allowing you to train more effectively throughout the entire session.
Mistake #6 — Not eating enough protein
As we saw in our article on sports nutrition, protein is the building block of your muscles. Without sufficient protein intake, your body simply cannot rebuild the muscle fibers damaged during workouts at our weight training gym in Morges.
Many beginners in weight training work out hard but consume little protein—and wonder why they aren't making progress. The answer is simple: you stimulated the muscle, but you didn't provide the material for it to rebuild itself stronger.
The general recommendation from our fitness coaches in Morges for strength training beginners is to aim for between 1.6 and 2 grams of protein per kilogram of body weight per day. According to the International Society of Sports Nutrition, this intake is sufficient to maximize protein synthesis and muscle mass gain for the vast majority of amateur athletes.
Good sources of protein to include in your diet:
- Chicken or turkey breast
- Whole eggs
- Fish — salmon, tuna, cod
- Greek yogurt
- Legumes — lentils, chickpeas
- Whey protein if necessary
Mistake #7 — Comparing your progress to that of others
At a gym in Lonay, it is tempting to compare yourself to other members—especially those lifting impressive weights or sporting a physique you admire. But such comparison is not only pointless; it is also discouraging and counterproductive.
Every body is different. Genetics, athletic history, diet, sleep, and dozens of other factors influence an individual's rate of progress. The person lifting 100 kg next to you might have been training for five years. Comparing your second week to their fifth year is a recipe for disappointment.
The only comparison that matters is you against yourself—last week, last month, last year. That is precisely why the certified coaches at our Lonay fitness club track your weights and progress from the very start—to show you exactly how much you are advancing, even when you don’t feel it.
Mistake #8 — Giving up too soon
This is arguably the biggest mistake of all. Strength training takes time—and the first visible results generally appear after 6 to 8 weeks of regular practice. Many beginners give up within the first 3 to 4 weeks, just before the results start to show.
In reality, even if you don’t yet see changes in the mirror, your body adapts from the very first session—your nervous system becomes more efficient, your tendons strengthen, and your muscles learn the movements. These invisible adaptations are the foundation for your future visible results.
Consistency is key. And that is exactly why the group classes at our Lonay gym are an excellent starting point for strength training beginners—they provide structure, a sense of community, and external motivation to help you get through those challenging first few weeks and achieve your initial results.
How to get off to a good start with weight training in Lonay
If you are just starting out with weight training and want to avoid all these mistakes right from the start, here is the most direct path:
Step 1: Take advantage of our free trial session at our gym in Morges — with no obligation.
Step 2: Have a fitness assessment with one of our certified coaches in Lonay—they will evaluate your fitness level, your goals, and any physical limitations.
Step 3: Get a personalized strength training program tailored to your level and goals as part of personal coaching.
Step 4: Combine your strength training program with our group classes—full-body, circuit training, or yoga for recovery.
Step 5: Be consistent—3 sessions a week for 8 weeks—and let the results speak for themselves.
Conclusion — Start smart, progress fast
Strength training is one of the most effective ways to transform your body, improve your health, and boost your confidence. However, like any discipline, it requires the right approach from the very start. Avoid these 8 common mistakes, and you will progress much faster than most beginners.
At our gym in Lonay, our fitness coaches in Morges are here to help you build the right habits from day one—covering technique, programming, nutrition, and recovery. There’s no need to reinvent the wheel—take advantage of their expertise.
Ready to get started with strength training on the right foot? Book your free trial session and meet your future coach this week.

