How long should a workout be?

How long should a workout be?

Most productive strength sessions last 45 to 75 minutes of actual training. That does not count the walk to the gym or the wait for a free rack. Under 30 minutes, you are usually short on hard sets. Over 90, you are usually short on focus.

Treat the length as a result, not a target. 2 things decide it: how many hard sets you do and how long you rest between them.

How do you work out a session's length?

A working set takes 30 to 60 seconds. Rest takes one to 3 minutes. So each set costs about 2 to 4 minutes in total.

That table is the whole argument. A long session means many sets, long rest, or both, and both can be right. A strength day of heavy sets of 5 needs 3 minutes between sets. Cutting that rest to save time makes the session worse, not shorter.

What should go into a session?

A typical muscle-building session looks like this:

• Warm-up, 5 to 10 minutes: a few minutes of general movement, then 2 or 3 sets of your first lift with rising weight. Warm-up sets do not count as hard sets.
• Main lifts: one or 2 compound lifts, 3 to 4 sets each, with full rest.
• Accessories: 2 to 4 smaller exercises, 2 to 3 sets each, with shorter rest.
• Nothing added at the end because you felt guilty.

That comes to 14 to 18 hard sets, which takes most people 50 to 70 minutes.

Does a longer session build more muscle?

Not by itself. What matters is hard sets per muscle per week, and you can arrange them in several ways. 20 sets in one 2-hour session is worse than the same 20 split across 2 sessions. The last sets of a long session are done tired and do less than the first ones.

Rest is the exception. A session that runs long because you rest properly on heavy compound lifts is a good long session. A session that runs long because of phone time between sets is not training at all.

What if you only have 30 minutes?

A short session you actually do beats a long one you skip. Cut in this order:

1. Cut rest, but only on isolation work. Keep 2 to 3 minutes on the heavy compound lifts. Take curls and lateral raises down to 45 to 60 seconds.
2. Cut accessory sets from 3 to 2.
3. Cut whole accessory exercises, starting from the last one on the list.
4. Never cut the main lift. If something has to go, it is not the squat.

2 sessions of 35 minutes in a week you would otherwise skip are worth more than one perfect 80-minute session.

How Trackist fits the plan to your time

Session length is one of the 14 questions Trackist asks before it writes your plan, from 30 to 90 minutes. The plan fits the time you have, not the time an ideal week would give you.

During the session, the rest countdown starts from the rest time on the exercise card. It floats above the tab bar on any screen and keeps running as a Live Activity when you lock the phone, with a notification at zero. Last session's numbers sit under each cell, so you do not scroll through history to remember what you lifted.

If sessions keep overrunning, change the session length on your training profile, and the coach can rebuild the rest of the plan around the new answer. You can also cut sets or remove an exercise in the plan editor, and the change applies from today. For more on the biggest variable in session length, read about rest between sets.