How many days/week should you work each muscle? And how many sets are needed in each workout? Shannon breaks down the current science on frequency and volume. She suggests a protocol that is both realistic and effective. 

0:00: Introduction 

1:40: Optimal volume for muscle growth 

6:15: How frequently should you work a muscle group? 

9:10: How many days per week should you strength train? 

11:15: The bottom line 

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