When lifting weights, what's more effective: 4 sets of 5 reps or 2

You Can See Muscle Gains by Lifting Twice a Week: Trainer Advice

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Has anyone on Quora had success with the Michael Matthews' Bigger, Leaner, Stronger program? - Quora

Should You Increase Weight After Each Set When Lifting?

When lifting weights, what's more effective: 4 sets of 5 reps or 2 sets of 10 reps? - Quora

Has anyone on Quora had success with the Michael Matthews' Bigger, Leaner, Stronger program? - Quora

When lifting weights, what's more effective: 4 sets of 5 reps or 2 sets of 10 reps? - Quora

Reps and Sets: How Many Reps Should You Do?