In Muscle Gaining Secrets Jason says that a gym session should last 30-40 minutes. How is this possible following his advice from the book:
- 10 minutes of warmup
- good stretching
- warmup sets: 5 sets per exercise (first with empty bar then 30%, 50%, 70% and 90% of the weight)
- resting 2-3 minutes per set
- 8-12 sets / workout (6 exercises x 2 sets per exercise)
Only the rest between the sets (5 warmup sets * 6 exercises + 10 workout sets) would go over 30 minutes easily.