20-Minute Workout: An Effective Training Plan for When Time Is Short

For the training stimulus, what matters most is how close the muscles are brought to their current limit, less the pure duration of training. Short, intensive sessions with few exercises and short rests can therefore achieve a similar effect to longer programmes, as long as the intensity is high enough. On stressful days in particular, a short but demanding workout is often the more realistic option than a long programme that ends up not happening at all.

From a cardiovascular point of view too, short circuit-style training has advantages: the quick switching between exercises without long rests keeps the heart rate raised throughout, which creates a noticeable endurance stimulus alongside the strength component, one that is usually smaller in classic strength training with long rests between sets. For people with little training experience, this double load of strength and endurance can be very demanding at first, which is why a slow start with fewer rounds is recommended.

It is important to choose your exercises deliberately: basic exercises that challenge several large muscle groups at once, such as squats, push-ups or rows, deliver more training stimulus in a short time than isolation exercises for individual small muscles.

A short, clearly limited workout also has a mental advantage: the prospect of an end after twenty minutes lowers the threshold to start at all for many people, compared with a longer, open-ended workout with no fixed end point.

Another advantage of short, regular sessions is how well they fit into daily life: a workout that actually happens brings more in the long run than a perfectly planned programme that is often skipped. Anyone who firmly blocks out twenty minutes in the calendar is often more likely to stick with it than with a vague intention to train "for an hour at some point".

To keep a 20-minute workout effective, rests should really be kept short; if in doubt, it is better to reduce the number of repetitions than to lengthen the rest. Prepare your mat, clothing and any equipment beforehand so that no time is lost searching. A timer or a simple clock helps to keep rests consistent instead of letting them drift.

A fixed slot in the calendar or a set time, such as straight after getting up or during the lunch break, increases the likelihood that the session actually takes place. Because the total training time is short, it is also worth deliberately putting away distractions such as your smartphone during the active rounds, so that the full time really goes to movement. A quick look at the exercise order before you start also saves time that would otherwise go on thinking during the short rests. Once you have internalised the routine, you can run the session more smoothly and without interruptions over time, which further increases the effectively used training time within the twenty minutes.

If you have pre-existing conditions, are pregnant, have had a longer break from training or have complaints, you should have the intensity checked by a doctor beforehand and start the circuit with fewer rounds and longer rests. Technique always comes before speed, even in short, fast sessions.