How often a week should you train as a beginner?

Three times a week, and why that is enough

For someone starting out, three times a week is a good answer. It is often enough to give your body a stimulus every two to three days, and little enough to recover between those stimuli. Progress does not happen during the session but in the days after it, when your body repairs the damage and rebuilds slightly stronger. Skip those days and you skip the progress.

Three is also the number you keep up. A schedule of five days a week stops existing in the first busy work week; a schedule of three days fits even a busy week. And keeping it up is the whole task when starting: the gains of the first months come not from one good week but from twenty ordinary ones.

What you do on those three days matters less than you think. Half an hour easy, at a pace where you can talk, is a full stimulus at the start. Your heart and lungs adapt in weeks; your tendons, bones and joints need months. It is the latter that decide how fast you are allowed to go.

Consistency does more than volume

Two people train three hours a week. One does three sessions of an hour, the other one session of three hours. After six months they are not in the same place. The first has had seventy-six stimuli, the second twenty-six, and every stimulus of the second was so big that days of recovery followed it.

For a beginner, a simple rule therefore applies: rather often and short than rarely and long. Three times half an hour does more than one session of an hour and a half, and it loads your legs in a way they can get used to. The long work comes later, once the base is there.

Consistency has one more advantage that only becomes visible after a while: your body learns from it what it can handle. A week with three equal sessions is predictable; a week with one outlier is not. The damage of starting sits in the outlier, not in the ordinary week.

What a rest day does

A rest day is not a day on which you make no progress. It is the day on which the progress happens. During a session you break down a little, muscle fibres, glycogen, the lining of your tendons, and in the day or two after it your body rebuilds it slightly sturdier. Train again too soon and you build on something that is not ready yet.

Rest does not mean sitting still. Walking, cycling to work, an easy day in the garden: that does not disturb recovery and often helps. What sets a rest day apart is that you give your heart and your legs no training stimulus that day.

Sleep is the other half of recovery, and for beginners often the half that gets forgotten. Anyone who starts training while sleeping six hours recovers more slowly than someone doing the same on seven or eight. Your own sleep need is what you have needed on average in recent weeks, and that usually sits between six and nine hours.

How to build up without running yourself into the ground

Change one thing at a time. If you go more often, longer and faster in the same week, you will not know where the fatigue comes from. Start with three times half an hour, keep that up for three to four weeks, and then make one session a quarter of an hour longer. Another three weeks. Then the next.

A common rule of thumb is that your weekly volume grows no faster than a tenth per week, with a lighter week every three or four weeks. That rule is not sacred, but it keeps the ratio between what you do this week and what you did in the weeks before close to what your body can keep up with.

Four days a week only becomes a good idea once three days have felt ordinary for a number of months and you are fresh the day after every session. Five and more are for those who already have a base, and the answer to whether you are there yet is in your legs, not in your motivation.

What Trimetra does with this

Trimetra plans your week on the days you make available, and with a beginner’s history those are no more than three. The app takes what you have done in the past six weeks as your base and the last week as fatigue; if the base is small, the sessions are short and easy, and they grow in steps you have already proven yourself.

The app also looks at the ratio between what you do this week and what you did in the four weeks before. If that ratio shoots up, a big week after a few small ones, the app says so, with the reason attached. That is not an injury predictor; nobody can predict an injury from a number. It is a warning that you are growing faster than your own pattern.

If you come back after a break through illness, an injury or simply life, the app does not start where you left off but lower, and builds back in small steps. How long you were away determines how carefully that goes.

The app learns your sleep need from your own nights of the past four weeks, with a floor of six and a ceiling of nine hours. If you sleep less than that need, it weighs into the plan for the day.

Frequently asked questions

Trimetra plans your week on your own available days and builds up in steps you have already proven yourself. You can try everything for your first month; recording and collecting stay free after that.