How many days between training the same muscle? Yield keeps track for you

In mid-September, a lifter testing Yield noticed that three of his sessions in a row had come out as nearly the same four exercises. A few muscles were doing all the work, and most of the others weren't being trained at all. Each session was planned as if it were the first one.

The problem: apps plan today without looking at your week

Most workout apps and AI coaches plan one session at a time. They don't know that your legs took a beating yesterday, or that you haven't trained your back in eight days. So you get two hard leg days in a row, or a week where the same few muscles do all the work and the rest do nothing.

Both cost you. Train a muscle hard again too soon and you start the session with it still tired. Leave a muscle out for a week and it misses out: a review of ten training studies found that working each muscle group twice a week built more muscle than once a week when the total work was the same. (Schoenfeld et al., Sports Medicine, 2016)

What Yield tracks for every muscle group

Before the coach plans anything, Yield looks at your logged sets and works out when each muscle group last worked hard and whether it's ready to train again.

How the coach uses it

The coach sees this picture before it plans, and it tells you why it chose today's session in one plain sentence, like "your chest and triceps went hard on Monday, so today leads with back and biceps."

How often you train is your call. If you lift five days a week, you'll come back to a muscle sooner than someone who lifts twice, and the coach spreads the work thinner per session instead of telling you a day is off limits.

A warning on the plan card

If a plan works a muscle hard again too soon, the plan card says so before you start:

"Your chest went hard yesterday, and this plan works it hard again. Accept it if that's what you want."

It's a warning, not a block. You might have a good reason to train chest again. The point is that you decide knowing the facts, rather than finding out halfway through your first set.

More on how the coach plans

The coach also asks how recovered you feel before you start. Read does a readiness check stop you from working out?

Yield Strength is in beta on TestFlight. Read what makes it different, or join the waitlist to try it.