Walking into a gym for the first time can be intimidating. There are dozens of machines, each with different levers, cables and adjustments, and no one tells you where to start. This guide walks through the machines you find in a typical gym in Portugal, explains what they are for, which muscles they work and how to use each one without hurting yourself.
If you have never picked up a free weight, the machines are the right starting point. The movement is guided, the risk of bad technique is lower, and you can start training with confidence in a few minutes. Once the foundation is there, you can mix machines with barbells and dumbbells. A well-used gym combines both.
The leg press is probably the most popular leg machine, and for good reason. It lets you work the quadriceps, glutes and hamstrings with heavy loads without having to balance a bar at the same time, which makes the learning curve far gentler than the free squat. The 45 degree version is the most common in Portuguese gyms and the best choice for beginners; the horizontal one gives a greater range of motion and activates more glute; the vertical one (hack squat) channels all the effort into the quadriceps and is reserved for those with solid technique. Adjust the seat so you have a comfortable knee bend and never lock the knees at the top of the movement, because that is where the joint takes the peak load.
2. Leg Extension
The leg extension is the isolation machine par excellence for the quadriceps. You sit down, hook your feet under the padded roller and straighten your legs against resistance. There is no other significant activation, which makes it useful for finishing a leg session, for guided knee rehabilitation, or to pre-fatigue the quads before a set on the leg press. The catch is the weight: with excessive loads the knee joint becomes exposed, especially at the end of the extension. It is better to do more reps with moderate weight than to push heavy sets.
3. Leg Curl
The leg curl is the opposite of the extension: it works the back of the thigh, that is, the hamstrings. You will find three variations in the gym. The lying version (face down) has the greatest range and isolates the muscle the most, although some people find the position uncomfortable for the lower back. The seated version is more comfortable and more common in newer gyms. The standing, single-leg version is useful for correcting imbalances between the two legs. In all three, the focus is on controlling the eccentric phase, that is, the slow descent of the weight, which is where the muscle grows most.
4. Adductors and Abductors
There are usually two machines side by side, one for the adductors (inner thigh) and one for the abductors (outer thigh and gluteus medius). They do not build a lot of muscle mass, but they are useful for localised toning and to reinforce stability of the knee and hip, especially for runners or athletes who change direction often. Used as a complement to leg training, they fit into a balanced routine; used on their own as a "spot fat loss" exercise, they do not work, because fat loss is systemic and not localised.
5. Glute Machine / Hip Thrust Machine
This is a relatively recent machine in Portuguese gyms and one of the most sought-after by anyone wanting to build the glutes. It mimics the hip thrust movement in a guided way, fixing the torso and pushing the weight with the hips. It is the safest alternative to the barbell hip thrust and produces very solid results when done with progressive loads, working the gluteus maximus and gluteus medius at the same time.
6. Calf Raise
The calf raise machine builds the calf muscles. The standing version, with the weight on the shoulders, targets the gastrocnemius (the large, visible muscle). The seated one, with the weight pressing on the knees, targets the soleus (the deeper muscle that supports posture). The calves respond well to long sets and heavy loads, because they are already used to bearing the body's weight every day.
Upper Body Machines
7. Chest Press
The chest press is the guided version of the bench press with a barbell or dumbbells, and is the best way to start chest training without needing a partner to spot you. It works the pectoralis major, the anterior deltoid and the triceps together. Decent gyms offer three angles: horizontal (zero degrees), which loads the mid pec; incline (between 30 and 45 degrees), which shifts the emphasis to the upper pec; and decline, less common, which isolates the lower pec. Before loading weight, adjust the seat so the handles line up with chest height; if they sit too high or too low, you move the shoulder instead of the chest.
8. Pec Deck / Fly Machine
The pec deck mimics the "hugging a tree" movement and isolates the pectoralis major better than any press. It is a finisher machine, designed to come in after the compounds (chest press or free bench press) in a chest session. Moderate loads with slow time under tension produce far better results than maximum weight in short sets.
9. Lat Pulldown
If you cannot yet do pull-ups on the fixed bar, the lat pulldown is the machine that gets you there. It mimics the same movement, but is adjustable by load, which lets you progress gradually. It works the latissimus dorsi, the rhomboids and the biceps. The wide pronated grip (palms forward) pulls for back width; the close neutral grip (palms facing each other) works thickness; the supinated grip (palms facing you) activates more biceps. In any variation, the most common mistake is pulling the bar behind the neck: it looks "more serious", but forces the shoulder into a vulnerable position and is one of the fastest shortcuts to an injury. Always pull to the chest.
10. Seated Row
The seated row is the other half of the "back" pair (the first being the lat pulldown). Instead of width, it works thickness: the latissimus dorsi, the rhomboids, the middle trapezius and the biceps. You sit, brace your feet against the support bar and pull the cable to your abdomen, keeping the shoulder blades drawing together at the back. It is an excellent exercise for correcting posture, especially for anyone who spends the day at a computer.
11. Shoulder Press
The shoulder press machine pushes the weight up overhead and mainly works the anterior and middle deltoids, with the triceps assisting. Newer versions allow unilateral work, that is, one arm at a time, which helps correct imbalances between the sides. Anyone with limited shoulder mobility should adjust the angle (some machines offer a slightly forward path rather than strictly vertical) to reduce stress on the joint.
12. Lateral Raise Machine
The machine lateral raise isolates the lateral deltoid, the muscle that gives width to the shoulders. Broad shoulders come mostly from here. It is a pure isolation exercise: moderate loads, long sets and a focus on feeling the muscle work give better results than heavy weights swung through the movement.
13. Rear Delt Machine / Reverse Fly
The back of the shoulder is perhaps the most neglected area of the body, and the rear delt machine fixes that. It works the posterior deltoid and the rhomboids, contributes to muscular balance of the shoulder, and helps prevent the "shoulders dropping forward" injuries typical of a sedentary posture. It should appear at least once a week in any routine.
Core and Abdominal Machines
14. Abdominal Crunch Machine
You sit, brace yourself with the legs and flex the torso against resistance to work the rectus abdominis. It is an optional machine. Planks, dead bugs and floor crunches produce equivalent results without taking up a machine, but if you prefer the loaded version for measurable progression, it is a valid alternative.
15. Rotary Torso / Twist Machine
This machine rotates the torso against resistance and should work the obliques, but the cost-benefit ratio is poor. The lumbar spine was not designed to handle rotation under load, and the cumulative impact on the intervertebral discs is the kind of thing that shows up years later. If you want strong obliques, the side plank, the dead bug and the band pallof press are safer and equally effective alternatives.
The Most Versatile Machine: Cable Machine
The gym cable machine deserves a special mention. It is the most versatile machine that exists, and with it you can train literally every muscle in the body. It comes in four main configurations: the high pulley, with the cable coming from above, ideal for triceps and back; the low pulley, with the cable coming from below, for biceps and shoulders; the adjustable pulley, on which you set the cable height, useful for almost anything; and the double pulley (cable crossover), with two towers facing each other, perfect for chest exercises and functional movements with rotation.
The real advantage of the cable machine is constant tension. With dumbbells or barbells, resistance varies with the joint angle; with the cable, it always pulls in the same direction, and the muscle is always under load. The most-used exercises are the cable crossover for the chest, the triceps pushdown, the cable curl, the face pull for the rear shoulders, the cable row for the back, the wood chop for the core, and the cable kickback for the glutes. If you could only use one machine in the gym, it should be this one.
Cardio Machines
16. Treadmill
The treadmill is the most popular cardio machine and the most flexible: you can walk, run, do intervals or steep climbs at a 15 degree incline. In an hour you can burn between 400 and 800 calories, depending on the intensity. The preset programmes cover steady-state cardio for base endurance, fast/slow intervals for fat burn, and incline work for more glute and hamstring engagement. The classic mistake is holding the side bars while running, because it destroys the natural biomechanics of the movement and removes most of the benefit; use them only to step on and off. If the incline is so high that you need to hold on, the incline is too high.
17. Elliptical
The elliptical mimics the running motion without the joint impact, which makes it the first choice for anyone with knee problems, recovering from an injury, or who simply prefers something gentler. The feet never leave the pedals, the torso stays relatively upright, and the moving handles activate the upper body in parallel. In an hour you can burn between 450 and 650 calories. It is also the ideal machine for active recovery sessions on the days between heavy leg workouts.
18. Stationary Bike
The gym bike comes in four distinct configurations. The upright, on which you sit straight, is the most classic and serves traditional training. The recumbent, on which you lean back into a larger seat, is more comfortable and suited to anyone with lower back issues. The spinning bike, leaned forward more and with stiffer pedals, is the version used in high-intensity group classes. And the air bike, on which you pedal and push the handles at the same time, is the most demanding: it works arms and legs together and is one of the best HIIT machines around. In any version, you can expect between 400 and 600 calories an hour.
19. Rowing Machine
The rowing machine is probably the best cardio machine if you can only pick one: it works the whole body, has low impact and burns between 500 and 700 calories an hour. Back, legs, arms and core all come into the movement. Technique is what separates people who get the most out of the machine from those who just get tired with nothing to show: the correct sequence is legs (you push with the heels), then back (you lean the torso back), and only at the end arms (you pull the handle to the abdomen). Then reverse in the same order. The most common mistake is pulling first with the arms, which overloads the biceps and throws away 80% of the work of the bigger muscles.
20. Stairmaster / Stairs
The stairmaster simulates continuous stair climbing and is one of the most demanding cardio machines you will find. Five minutes on the stairmaster feel like an hour on the bike to many people. It burns between 500 and 700 calories an hour, intensely tones the glutes and hamstrings, and is a fantastic alternative for anyone who wants cardio without the impact of running.
Functional and Multi-Use Machines
21. Smith Machine
The Smith machine is a fixed bar on vertical rails that lets you do squats, bench presses, lunges and shoulder presses without the risk of the bar tipping. The advantage is safety: the bar hooks into the supports every few centimetres, and you can drop it without injuring yourself. The drawback is the fixed path: because the bar only moves vertically, the stabiliser muscles work far less than with free weights, and the transfer to everyday movements is lower. It is a good machine for beginners or for training alone with heavy loads; those who already have technique benefit more from the free barbell.
22. Cable Crossover
The cable crossover is the setup of two high pulleys facing each other that allows the classic chest crossovers, but also many other functional exercises with rotation or pulls from different angles. It is essentially the double cable machine.
23. Functional Trainer
The functional trainer is similar to the cable crossover, but the two pulleys are height-adjustable, which multiplies the possible exercises. In gyms with limited space, this is often the most versatile piece of kit available and can replace several single-purpose machines.
24. TRX / Suspension Trainer
The TRX is not technically a machine, but it is present in almost every modern gym. They are straps suspended from the ceiling or a frame, with handles for hands and feet, in which your body weight creates the resistance. It is excellent for core, stability and functional training, and you adjust the difficulty simply by changing the body angle.
How to Adjust Any Machine
Whatever the machine, there are four things to check before loading weight. First, the seat height, so the feet sit well and the machine's axis of rotation lines up with the joint you are going to work; move the pin and adjust before the first rep. Second, the backrest, set so the spine stays neutral and supported throughout the movement. Third, the range of motion: many machines have stoppers that prevent the movement going beyond what your mobility can handle, and it is worth using them, especially on the shoulders. And fourth, the weight: always start with less than you think you need, because it is easier to go up on the next set than to spend two weeks at home because of a badly judged effort.
Machines vs Free Weights
This is one of the oldest debates in any gym. Machines offer high safety, low technical demand and excellent muscle isolation, but they work the stabilisers less and have limited transfer to functional movement. Free weights demand technique, reward you with activation of every stabiliser muscle, and build strength that applies outside the gym, but they have a slower learning curve and more risk when form fails.
The practical recommendation is simple: use both. Machines to train safely in the first few weeks, isolate specific muscles, finish sessions and train with heavy loads in isolation. Free weights for the core compound movements, like the squat, deadlift and bench press, which produce the most hypertrophy and strength per unit of time.
Which Machine Is Best for You?
For beginners in the first six months of training, the safest routine focuses on the leg press for the legs, chest press for the chest, lat pulldown for the back, shoulder press for the shoulders, leg curl for the hamstrings, and treadmill or elliptical for cardio. These six machines cover the whole body with very low injury risk and give the neuromuscular system time to learn what it means to pull and push a load. For a structured plan for the first few weeks, read our guide to the benefits of private training, which explains how to set up sessions without a contract or monthly fee.
For anyone looking to lose weight, the combination that works best is cardio (treadmill, elliptical or rower for 30 to 45 minutes) with a circuit of basic strength machines (leg press, chest press, lat pulldown, shoulder press). Strength work preserves muscle mass during the calorie deficit, which is what makes weight loss sustainable and prevents the body from simply becoming smaller.
For hypertrophy (muscle gain), machines have three main roles: pre-fatigue before free weights (a set of leg extensions before the squat, for example), isolation after the compounds (rear delt machine at the end of a shoulder session), and drop sets, in which you change the weight quickly between sets to push the muscle to failure. Almost all the most solid hypertrophy plans mix machines with barbells and dumbbells for these reasons.
Statistics and Data
According to data from the fitness sector in Portugal, around 89% of gyms have at least 15 strength machines, and the leg press leads as the most-used machine, present in 98% of facilities. Even so, 62% of users admit they do not know how to adjust the machines correctly, which explains a large share of the shoulder and knee injuries that show up in physiotherapy clinics. Studies show that training with machines reduces the risk of injury by around 35% compared with free weights in beginners, and that users who combine the two methods get 28% better results than those who stick to just one side. Portugal Activo, the association of gyms and health clubs, reports more than 700,000 Portuguese members in gyms.
Frequently Asked Questions
The essentials are: leg press (legs), cable machine (versatile), lat pulldown (back), chest press (chest), leg curl/extension (legs). With these 5 you can train your whole body.
Both have a place in training. Machines are safer for beginners and let you isolate muscles. Free weights work more stabiliser muscles. The ideal is to combine both.
Start with a weight that lets you do 12 to 15 repetitions with correct technique. The last 2 to 3 reps should be challenging but doable. Increase gradually once you feel comfortable.
Yes, as long as you know how to adjust and use it correctly. If in doubt, ask an instructor for help. Most machines have visual instructions stuck on them.
It depends on the goal. For a full-body session: 6 to 8 machines. For a muscle-group split: 3 to 5 machines. Quality matters more than quantity.
Yes. Cardio machines (treadmill, elliptical, bike) burn calories directly. Weight machines build muscle mass, which speeds up the metabolism in the long term.
Start with compound exercises (leg press, chest press, lat pulldown) and finish with isolation moves (leg curl, biceps curl). For cardio, you can do it before (warm-up) or after (fat burn).
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TLDR: Key Points
There are 3 main categories: strength, cardio and functional
Guided machines are safer for beginners than free weights
The cable machine is the most versatile machine in the gym
Always adjust the seats and supports before starting each exercise
Combine machines with free weights for complete results
Tomás Jorge
