Two questions in one: days per week and sessions per muscle
"How often" can mean two different things. The first is how many days a week you go to the gym. The second is how many times a week a single muscle, say your quads or your biceps, gets hard sets. They are linked but not the same. Someone training 4 days a week on an upper lower split hits every muscle twice. Someone training 5 days on a classic bro split hits each muscle only once.
For muscle growth, the second number is the one to plan around. Your weekly schedule then follows from it: pick how many sessions per muscle you want, see how many days you have, and choose the split that fits both.
What the research broadly shows
A 2016 meta-analysis by Schoenfeld, Ogborn and Krieger in Sports Medicine found larger muscle growth with higher training frequencies than with lower ones, and the authors pointed to training each muscle at least twice a week. A later meta-analysis by Schoenfeld, Grgic and Krieger (2019, Journal of Sports Sciences) added an important detail: when total weekly volume was the same, frequency on its own made no meaningful difference to growth.
Put together, the takeaway is practical rather than magic. Training a muscle twice a week is not better because of the number two. It is better because it lets you do more total quality work. Ten hard sets for your chest in one session means the last five are done tired and sloppy. Split into two sessions of five, every set gets your full effort. If you want to know how many sets to aim for, read how many sets per week.
How often to train each muscle group
These are typical starting points for people training to build muscle and strength. Large muscles that take a beating from heavy lifts often need a little more time between sessions; small muscles recover faster and tolerate more frequent work.
| Muscle group | Sessions per week | Notes |
|---|---|---|
| Legs (quads, hamstrings) | 2 | Heavy squats and deadlifts are tiring; keep 48 to 72 hours between hard leg days |
| Glutes | 2 to 3 | Often trained alongside legs, plus one lighter glute session if they are a priority |
| Chest | 2 | Pressing also trains front delts and triceps, so count that overlap |
| Back | 2 | Split rows and pulldowns over the week; back tolerates volume well |
| Shoulders | 2 to 3 | Side and rear delts recover fast; front delts get work from pressing already |
| Biceps and triceps | 2 to 3 | Already worked by pulling and pushing; add 2 to 6 direct sets per session |
| Calves | 2 to 4 | Small and quick to recover; short, frequent sessions suit them |
| Core | 2 to 3 | Add 2 to 3 sets at the end of a workout; heavy compound lifts train it too |
| Forearms | 1 to 3 | Grip work from deadlifts and rows often covers it |
How often should I workout legs?
Twice a week is the sweet spot for most lifters. A typical setup is one squat-focused day and one hinge-focused day, for example squats and lunges early in the week, then Romanian deadlifts and leg curls later. Our leg workout page has both sessions ready to use. If your legs are still very sore when the second session comes around, cut a set or two rather than skipping the day.
How often should I workout my arms to get bigger?
Arms get indirect work every time you press or pull, so they rarely need their own day. Two or three short blocks of direct work per week, each 2 to 4 sets of curls and extensions, is a good target. The bicep workout guide shows how to fit those sets into a normal program.
How often should I workout my glutes, core and calves?
These three are the most forgiving. Glutes can handle two heavier sessions plus a lighter one. Core and calf exercises fit at the end of almost any session, which makes three short exposures a week easy to schedule.
How often should I workout a week?
The right number of gym days depends mostly on how much time you have and how long you have been lifting. More days are not automatically better; they are only better if you recover and keep progressing.
| Days per week | Good split | Times each muscle is trained |
|---|---|---|
| 2 | Full body twice | 2 |
| 3 | Full body workout or a 3 day split | 3 (full body) or 1 to 2 (split) |
| 4 | Upper lower | 2 |
| 5 | 5 day split or upper lower plus push pull legs | 1 to 2 |
| 6 | Push pull legs run twice | 2 |
Two days a week is enough to build real strength if both sessions are hard and you keep coming back. Three to four days is where most people get the best return for the time. Five or six days suits people who enjoy training and want shorter sessions, not people looking for a shortcut.
How often should I workout as a beginner?
Start with three full body sessions a week on non-consecutive days, for example Monday, Wednesday and Friday. Each session trains every major muscle with a few compound lifts, so you practice the movements often, which is exactly what a beginner needs. The beginner workout plan lays this out week by week.
Beginners usually recover faster than they expect, because they cannot yet lift heavy enough to tire themselves out much. What holds them back is consistency, not frequency. A plan you follow for six months beats a perfect plan you drop after three weeks.
Frequency when bulking, cutting or training at home
- When bulking: eating more improves recovery, so this is the best time to add a session or a few weekly sets. Keep each muscle at two sessions a week and let the extra food drive progress.
- When cutting: keep the frequency and the heavy weights, and trim a few sets if you feel flat. Holding on to strength is the goal.
- At home: lighter equipment usually means more reps per set and more total sets, so training a muscle 2 to 3 times a week in shorter sessions often works better than one long session. The chest workout at home shows a short home session for one muscle group.
- Older lifters or people coming back from a break: start at two sessions per muscle and leave a full rest day between hard sessions.
Signs you train a muscle too often, or not often enough
Your logbook tells you more than any table. Watch two things: the weights and reps on your main lifts, and how you feel when you walk into the gym.
- Too often: the same lift gets weaker for two or three sessions in a row, joints ache, sleep gets worse, or a muscle is still very sore at the next session. Muscle soreness alone is not a reliable signal; our guide to DOMS explains why.
- Not often enough: you feel fresh every session but a muscle is not growing, and you only train it once a week with a few sets. Add a second session with 3 to 5 sets.
- Just right: reps or weight creep up on most exercises over a few weeks, and a deload week every couple of months is enough to feel fresh again.
A weekly schedule that fits your life
Gripp builds your week around the days you have, for example 3 gym days and 1 run, logs every set and tells you what to lift next time. Not sure if you train a muscle often enough? Ask the AI coach, and approve any plan change it suggests. Gripp is coming soon to iPhone.
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