Not Your Average Doctor
A few years ago I was talking to Eric Serrano, my doctor and friend, about developing muscle hypertrophy. Serrano said something that caught my attention. According to some experiments he'd done with a select group of bodybuilders, he'd determined that maximum hypertrophy may take place when the muscle is under tension between thirty and forty-five seconds."
What may not seem like a big deal to most it got my brain spinning.
Most lifters who try to achieve that duration of tension will focus on the reps and how long each one should take - I wanted to look at it differently and just decided to go for time.
I created a four-week program with absolutely no repetition guidelines.
Before this program my average sets usually lasted like 10 seconds. I knew training solely on time as going to be brutal.
Extended Tension — The Program
This program consists of four workouts per week, with one day of rest between each workout. This is a typical bodybuilder split, and hit every muscle group twice per week.| The Split |
| Day 1 — Chest, Shoulders, Triceps |
| Day 2 — Off |
| Day 3 — Legs, Back, Biceps |
| Day 4 — Off |
| Day 5 — Chest, Shoulders, Triceps |
| Day 6 — Off |
| Day 7 — Legs, Back, Biceps |
| Day 8 — Off |
I selected only two exercises per muscle group per day, and made sure they were movements I could do without a spotter.
Day 1 — Chest, Shoulders, Triceps
| Exercise | Sets | Time Under Tension | Rest |
| Flat dumbbell bench press | 3 | 30 seconds | 90 seconds |
| Machine flye | 3 | 30 seconds | 90 seconds |
| Dumbbell shoulder press | 3 | 30 seconds | 90 seconds |
| Dumbbell lateral raise | 3 | 30 seconds | 90 seconds |
| Dumbbell triceps extension | 3 | 30 seconds | 90 seconds |
| Triceps pressdown | 3 | 30 seconds | 90 seconds |
Day 3 — Legs, Back, Biceps
| Exercise | Sets | Time Under Tension | Rest |
| Leg press | 3 | 30 seconds | 90 seconds |
| Stiff-legged deadlift | 3 | 30 seconds | 90 seconds |
| Chest-supported row | 3 | 30 seconds | 90 seconds |
| Wide-grip lat pulldown | 3 | 30 seconds | 90 seconds |
| Barbell curl | 3 | 30 second | 90 seconds |
| Hammer curl | 3 | 30 seconds | 90 seconds |
Day 5 — Chest, Shoulders, Triceps
Use different exercises from Day 1.





















































































