- Weekly volume and effort matter more than how you divide the body up.
- Two or three training days suit full body sessions best.
- Four or more days make splits easier to organise and recover from.
- Training each muscle at least twice a week tends to beat once a week.
The short answer from the research
Over the past decade, a number of studies have compared training a muscle once, twice or three times a week while keeping the total weekly work the same. The overall picture is that frequency on its own makes little difference to muscle growth once volume is equal. What frequency changes is how that volume is spread out.
There is a practical catch. If you try to do 15 hard sets for your legs in one session, the last few sets are usually poor quality because you are exhausted. Spreading those sets across two or three sessions keeps every set productive. That is why training each muscle at least twice a week is a sensible default for most people.
For strength, there is a slightly stronger case for practising the main lifts more often, because lifting is partly a skill. Squatting two or three times a week, even with moderate loads, tends to build more reliable technique than one heavy squat day.
What a full body routine looks like
A full body session trains every major movement pattern: a squat or lunge, a hinge, a push, a pull, and usually a carry or core exercise. You repeat that two or three times a week, often with different exercises or rep ranges each day.
- Monday: goblet or back squat, push-up or bench press, dumbbell row, farmers carry.
- Wednesday: trap bar deadlift, overhead press, lat pulldown, dead bug.
- Friday: reverse lunge, incline dumbbell press, chin-up or assisted chin-up, hip thrust.
Each session covers the whole body with three or four sets of each exercise, so no single day is overwhelming, and missing one session still leaves every muscle trained twice that week. Full body training is especially good for beginners, because each lift gets practised often, and for anyone whose schedule is unpredictable.
The trade-off is session length and variety. Covering everything means fewer sets per exercise each day, and if you like hitting a muscle from lots of angles, full body sessions can feel limiting. Keeping each session to five or six exercises and rotating variations across the week solves most of that.
What split routines look like
Split routines divide the body across days. The common versions are:
- Upper/lower: four days, each muscle twice a week. Covered in detail in our upper/lower split guide.
- Push/pull/legs: three days if run once through each week, six days if run twice.
- Body part split: chest day, back day, leg day and so on, with each muscle trained once a week.
The traditional body part split is the least efficient option for most people. Training each muscle once a week leaves a long gap between sessions and tends to encourage an enormous amount of volume in one go. It can work for experienced lifters who train five or six days, but it is rarely the best starting point.
How to choose: start with your diary
The most useful question is not which approach is optimal but how many days you can train in your worst normal week. If a busy month means two sessions, a full body plan still covers everything. If a split relies on four days and you manage two, some muscles simply go untrained.
- Two days a week: full body, every time.
- Three days: full body, or an upper/lower rotation across two weeks.
- Four days: upper/lower, or two full body days plus two conditioning days.
- Five or six days: push/pull/legs, upper/lower with extras, or a hybrid of strength and conditioning.
If you are new and unsure where to start, our guide to how often a beginner should train sets out a realistic starting point. If time is your biggest constraint, see strength training on a busy schedule.
Consistency beats structure every time. Someone who does three full body sessions every week for a year will end up far stronger than someone who starts a six-day split in January and quits by March.
Recovery, fatigue and other training
Full body sessions spread fatigue evenly, which suits people who also run or do conditioning, because no single day hammers the legs quite as hard. On the other hand, full body days can drag if you try to include too much, and heavy squats and heavy deadlifts in the same session are a lot for most people.
Splits concentrate fatigue in one region, which lets you train on back-to-back days but can leave your legs wrecked for a day or two after a big lower session. If you are preparing for a race or training as a hybrid athlete, look at where your hardest runs or engine sessions fall and place your heaviest leg work well away from them.
Age plays a part too. Many lifters over 40 find that three moderate full body sessions leave them fresher than two brutal leg days, simply because each session asks less of the joints. It is also why beginners often feel less wrecked on full body plans: soreness is spread thinly rather than concentrated in one place.
Where group classes fit
Group strength classes often follow a split structure because it lets a coach focus a whole session on a few movement patterns and teach them properly. Combining two lower and two upper classes a week gives you something very close to a classic upper/lower split without writing your own programme. Lycan Strength runs both styles: Full Body classes on Mondays, then Upper on Tuesday and Wednesday and Lower on Thursday, and every class is scaled to the individual.
Whatever you pick, stick with it for eight to twelve weeks and track your main lifts. If they are going up and you are recovering well, the structure is working. If you are constantly sore and stalling, reduce the volume before you change the split.
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Questions
Is full body training better for beginners?
Usually, yes. Practising each lift two or three times a week helps technique improve quickly, and missing one session costs less.
Can you build muscle with full body workouts?
Yes. With enough hard sets per muscle across the week and steady progression, full body routines build muscle as well as splits do.
Is training each muscle once a week enough?
It can maintain muscle and build some, but most people progress better by spreading the same work across two or more sessions.
General guidance for healthy adults. If you have a medical condition, injury or are pregnant, check with a health professional before changing your training or diet.
