If you’re wondering, how long should a strength workout last?

The answer is: Probably shorter than you might think.

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Why might this be?

woman sweating in the gym

Since this study only lasted four weeks, its likely the gains seen were predominantly due to neural adaptations.

The more frequent sessions provide more frequent neural stimulations, with adequate rest, says Dr. Straub.

And when the brain receives a stimulus more often, changes occur more readily.

Woman walking on a treadmill at the gym.

So what should your weekly routine look like?

For the upper body, Dr. Straub suggests training the biceps, triceps, back, chest, shoulders.

On lower body days, she suggests focusing on the hamstrings, quadriceps, and glutes.

Full body female athlete in sportswear using rowing machine during fitness workout in gym.

The core could be incorporated on both days, or either day, she adds.

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Happy woman dancing and listening to music near a green empty wall outdoor in the city.

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For instance, performing very few reps at maximal eccentric strength is ideal for increasing muscular strength and size.

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Healthy female training in the gym, performing a hip thrust.

A young black woman doing post-run stretches in the park on the road amidst green grass and trees.