Most beginners do "wandering training". They show up at the gym, use two machines that happen to be free, then leave. Without a plan there is no progression, and without progression there are no results; the beginner quits in three months convinced that "weight training doesn't work for me".
The problem isn't starting. Gyms are the second most common venue for physical activity in Portugal, ahead of schools and parks (). The problem is sticking with it: cancel their gym membership due to a lack of personalised guidance (). The difference between those who quit and those who reach six months usually comes down to following a plan with clear progression rules.
This guide delivers a complete 8-week programme. The first 4 weeks are full-body, three times a week, with a focus on technique. The following 4 weeks move to an A/B split (Push and Pull combined with Legs) to increase volume per muscle group now that the movements are grooved. Each session lists named exercises, sets x reps x rest, and a load progression rule. At the end, a table of the most common mistakes in the first 8 weeks so you can avoid what sinks 80% of beginners.
Before week one: 4 decisions
Four decisions before you walk into the gym on Monday:
Weekly frequency: three sessions for all 8 weeks. More is not better at this stage. Four or five sessions raise the risk of overuse injury without proportional gains; two slow motor learning. Three is the sweet spot that ACSM and Schoenfeld 2021 confirm for beginners.
Session length: 60 minutes maximum (45 productive plus 15 for warm-up and tidying up). Longer sessions usually mean overly long rest periods, not more work. Leave the gym at 60 minutes even if you feel like doing more; the next session will be better for it.
Minimum kit: trainers with a stable sole (not cushioned running shoes, which collapse under the squat), shorts with elastane, a water bottle, a small towel. If you don't yet have the basics, the men's gym shoes guide and the men's gym shorts guide cover the right choices for PT 2026.
Standard warm-up (5 to 7 minutes): 3 minutes on a bike or light elliptical, 2 minutes of hip and shoulder mobility, and 1 to 2 warm-up sets of the session's first compound lift at 50% of working weight. Without this, your first working set becomes a warm-up set and you lose the first productive set of the session.
Programme weeks 1 to 4: full-body 3x/week
The same session three times a week, with 48 hours of rest between each one. Standard example: Monday, Wednesday, Friday. If your work week doesn't allow it, switch to Tuesday, Thursday, Saturday.
Why full-body? Because it maximises frequency per muscle group (each muscle trained 3 times a week) and gives enough repetitions of the compound lifts for the nervous system to groove them. For beginners, 8 to 12 weekly sets per muscle group already drive efficient hypertrophy (Schoenfeld 2021), and full-body hits that volume without complexity. "Monday chest, Tuesday back" splits belong to people who already have 6 to 12 months of practice; beginners who jump straight to a split train each muscle group only once a week and stall.
The session has 6 exercises: 2 heavy compounds (squat, bench press), 2 pulls/presses (row, shoulder press) and 2 short isolations (curl, triceps extension).
Session A (repeat 3x per week, weeks 1 to 4)
Exercise
Sets x Reps
Rest
Notes
Barbell back squat (or Goblet squat)
3 x 8
90 s
empty bar (20 kg) or kettlebell in the first week
Barbell bench press (or Smith machine bench press)
3 x 8
90 s
shoulder-width grip, controlled descent
Barbell bent-over row (or low cable row)
3 x 10
60 s
keep a neutral spine, pull to the navel
Seated dumbbell shoulder press
3 x 10
60 s
bench at 90 degrees, control on the way down
Dumbbell biceps curl
2 x 12
45 s
no hip swing, elbow fixed
Triceps cable pushdown (rope or bar)
Total time per session: 50 to 55 minutes including warm-up. If you finish in 35 minutes, you are either resting too little or skipping sets; time your rests.
The progression rule is simple: add 2.5 kg on a compound for the next session when you complete the 3 sets of 8 reps with the final rep still controlled (no rounded back on the squat, no bouncing the bar off the chest on the bench). When you fail the last set, you repeat the same weight in the next session. On isolations (curl, extension), only add weight when 12 reps start to feel easy on every set.
How to tell you are doing it right
Three signs your week is going well:
Sign 1: the final rep of each compound set is hard but controlled. If you have 4 to 5 reps left in the tank, the weight is too light; if technique collapses on the 6th rep, it is too heavy.
Sign 2: in the 24 to 48 hours afterwards you feel the worked muscles (chest after bench, glutes after squat) but not soreness that stops you climbing stairs. Crippling soreness is a sign of excess, not quality.
Sign 3: by week 3 you can already add weight to the bar on at least one of the compounds without losing technique. If by week 4 you are still on an empty bar across every lift, either you have a real limitation (mobility, old injury) or you are resting too little between sessions.
Programme weeks 5 to 8: A/B split
From week 5 onwards, with stable technique, you can raise the volume per muscle group by splitting the body across two sessions. The 3 sessions per week stay, but A and B alternate: in week 5 you do ABA (Monday A, Wednesday B, Friday A), in week 6 BAB, and so on. Each muscle group is still trained 1.5 times a week on average; for beginners who still benefit from high frequency, this split beats any 4 or 5-day routine.
The logic of the split is simple: Session A trains pushes (chest, shoulders, triceps) plus quad-dominant legs; Session B trains pulls (back, biceps) plus hamstrings and glutes. Each session leaves the gym in 55 to 65 minutes with 4 sets per compound exercise.
Session A (Push plus quad-dominant Legs)
Exercise
Sets x Reps
Rest
Notes
Barbell back squat
4 x 6
120 s
week 5: 70% of max weight; week 8: 80%
Barbell bench press
4 x 6
120 s
technique before load, always
Incline dumbbell press
3 x 10
75 s
bench at 30 degrees, control on the way down
Machine leg extension
3 x 12
60 s
controlled descent (3 seconds), foot flexed
Seated shoulder press
3 x 10
75 s
dumbbells or machine, bench at 90 degrees
Triceps cable extension
3 x 12
Session B (Pull plus hamstring and glute-dominant Legs)
Training stimulates; recovery builds. Without proper recovery, the 8-week programme stumbles around week 3 or 4: you feel constantly tired, the bar feels heavier than it should, and you fail sets you ought to complete. Four things solve 90% of this.
Sleep: 7 to 9 hours a night, with a consistent schedule (same bed and wake-up time within a 60-minute tolerance, even at weekends). Most muscle protein synthesis and growth hormone release happen during deep sleep. Cutting back to 5 or 6 hours during the week and "catching up" on Saturday doesn't work; you miss the window. For beginners who train in the evening, avoiding screens 30 minutes before bed speeds up falling asleep.
Food on non-training days: a common mistake is eating less on rest days "because I'm not training". It is exactly the opposite: recovery happens on the off days, and that recovery needs protein (1.6 to 2.0 grams per kg of body weight per day, spread across 3 to 4 meals). For a 75 kg man, that means about 120 to 150 g of protein daily, the equivalent of a large chicken breast plus 3 eggs plus a yoghurt with milk, every day.
Hydration: 35 ml per kg of body weight per day as a baseline, plus 500 to 750 ml extra per hour of training. For 75 kg: roughly 2.6 litres baseline plus 0.5 to 0.75 litre on gym days. Rule of thumb: urine should be a pale straw yellow; dark yellow means a deficit. Coffee and tea count; sugary soft drinks don't.
Light activity on non-training days: 20 to 30 minutes of walking, gentle cycling or easy swimming on rest days speed up recovery by improving circulation and drainage, without adding fatigue. Don't confuse it with training; it is movement. Sitting for 10 hours after a leg session guarantees next-morning soreness that could have been avoided.
How to progress and when to switch plans
Load progression is the engine of the whole programme. Without it, the programme falls apart in three weeks. The rules:
The 2.5 kg rule: add 2.5 kg on a compound exercise when you complete all sets-reps with the final rep still controlled. On isolations, add 1 kg or move up a dumbbell only when 12 reps start to feel easy. There is no prize for jumping 5 kg at once; it is a recipe for failing the next session and getting demoralised.
Sign for a deload: two consecutive sessions with worse weight or fewer reps on the same exercise point to accumulated fatigue. Drop 10% of the weight for one week ("deload") rather than pushing on and risking injury. The deload week is not time wasted; it is recovery time that makes the next session land better.
When to switch programmes: at the end of the 8 weeks, if you completed at least 6 sessions out of 8 weeks and added weight on at least 3 of the 4 main compounds (squat, bench press, Romanian deadlift, row), you are ready for a Push/Pull/Legs at 4 or 5 times a week, or an upper/lower at 4 times. If you didn't hit those markers, repeating the A/B for another 4 weeks is the right call, not jumping to a more complex split.
Intermediate beginner (3 to 6 months): keep the A/B but add a 4th weekly session of light cardio (30 to 40 min on bike, treadmill or elliptical), preferably on a different day from the strength sessions. It contributes to cardiovascular health and body fat management without compromising muscle recovery.
Most common mistakes in the first 8 weeks
The difference between someone who reaches week 8 and someone who quits in week 3 almost always comes down to one of these five mistakes:
Mistake 1: starting too heavy. Ego says "if the bar is empty no one will take me seriously". The reality is the opposite: every set done with poor technique is a set that develops nothing and raises the risk of injury. Starting with an empty bar (20 kg) on every compound in week 1 is the rule, not the exception. Anyone judging you for that in the gym doesn't know how to lift either.
Mistake 2: skipping the warm-up. Without 3 minutes of light cardio plus 1 to 2 warm-up sets of the compound, the first working set turns into a warm-up set; you lose the first productive set of the session. 5 to 7 minutes feel like a lot when you're in a hurry; they are time invested with immediate return.
Mistake 3: mistaking "feeling wrecked" for "training well". Severe muscle soreness 48 hours later is a sign of excess, not quality. A well-executed workout leaves real tiredness but not immobility. If you leave the gym unable to climb the stairs, you trained badly, not well.
Mistake 4: changing exercises every week. "To shock the muscle" is a myth. In the first 8 weeks, the gains come from repeating the same movement until it is grooved in the nervous system (neural adaptation). Switching exercises stalls that process. The full 8 weeks with the same Session A is the path, not the problem.
Mistake 5: comparing visual results week by week. Muscle gains are slow: 1 to 2 kg of muscle in the first 3 months, under ideal conditions (consistent training plus adequate nutrition). Comparing Monday's photo with Friday's is a recipe for quitting convinced that "it isn't growing". Compare month to month, or better, every three months.
Frequently Asked Questions
Three days a week, with 48 hours of rest between sessions. More frequency increases injury risk without extra gains; less slows motor learning. The ACSM rule and the evidence from the Schoenfeld 2021 meta-analysis confirm this for beginners.
Neural adaptations (more strength without more visible muscle) happen in the first 4 weeks. Visible hypertrophy starts around weeks 8 to 12, and gains of 1 to 2 kg of muscle in the first 3 months are realistic. Compare photos month to month, not week to week.
After, and in a separate session if possible. Cardio beforehand burns the energy weight training needs for correct motor patterns and maximum loads. 10 to 15 minutes of light cardio at the end of the session (or on a separate day) is enough for beginners.
Empty barbell (20 kg) for squats and bench press in the first session, even if it feels light. Add 2.5 kg only when you complete the 3 sets of 8 reps with controlled technique. The focus is on grooving the motor pattern, not testing maxes.
It is not mandatory, but for the first 3 to 4 sessions a single session is worth the investment to check your squat, bench press and row technique. Errors in these three movements drag on for years if they are not corrected early. After that, the plan is doable on your own.
Before (1 to 2 hours prior): a meal with carbs (bread, rice, potato) and protein (egg, tuna, chicken). After (within 2 hours): protein (chicken, tuna, egg whites) with carbs. You don't need a commercial "pre-workout"; a cup of coffee 30 minutes before works just as well. Supplements only make sense once your diet is consistent.
Any gym with an Olympic barbell, squat rack, bench with dumbbells up to 20 kg, lat pulldown cable and leg extension machine is enough for the whole programme. If there is no Olympic barbell, swap the squat for leg press and the bench press for chest press. If there is no cable, do triceps extensions with a dumbbell.
Yes, and faster than someone who has never trained. The phenomenon is called "muscle memory": fibres previously hypertrophied recover volume quicker than fibres never trained. Anyone who trained between 18 and 25 can rebuild most of the mass in 8 to 12 weeks, even after a 5-year break.
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TLDR: Key Points
3 full-body sessions per week for the first 4 weeks, with 48 hours of rest between sessions. Focus on technique before load.
From week 5, transition to an A/B split (Push and Pull plus Legs) to increase volume per muscle group.
Each session starts with 2 compound exercises (squat, bench press, row, Romanian deadlift) before any isolation work.
Load progression: add 2.5 kg on a compound lift when you complete every set with the last rep still controlled; keep the weight when you fail.
Neural adaptation happens in the first 4 weeks (more strength without more visible muscle); visible hypertrophy from week 8 onwards.
Tomás Jorge
