Kris Gethin 8 Week Muscle Builder Challenge
Overview
Who it's for
Muscle engagement
| # | Exercise | Sets | Reps |
|---|---|---|---|
| 1 | Underhand Lat Pulldown | 3 | 16–18 reps |
| 2 | Pullover (Dumbbell) | 3 | 10–12 reps |
| 3 | T-Bar Row | 3 | 16–18 reps |
| 4 | Bent Over Row (Barbell) | 3 | 16–18 reps |
| 5 | Shrug (Dumbbell) | 3 | 20 reps |
| 6 | Seated Calf Raise | 3 | 30 reps |
| # | Exercise | Sets | Reps |
|---|---|---|---|
| 1 | Decline Bench Press (Barbell) | 3 | 20 reps |
| 2 | Chest Fly (Dumbbell) | 3 | 20 reps |
| 3 | Incline Chest Press (Machine) | 3 | 20 reps |
| 4 | Pec Deck (Machine) | 3 | 20 reps |
| 5 | Hanging Leg Raise | 3 | AMRAP |
| # | Exercise | Sets | Reps |
|---|---|---|---|
| 1 | Lying Leg Curl | 3 | 20 reps |
| 2 | Stiff Leg Deadlift | 3 | 20 reps |
| 3 | Hack Squat | 3 | 20 reps |
| 4 | Leg Press (45 Degrees) | 3 | 20 reps |
| 5 | Squat (Smith Machine) | 3 | 20 reps |
| # | Exercise | Sets | Reps |
|---|---|---|---|
| 1 | Tricep Pushdown (Cable) | 3 | 20 reps |
| 2 | Dip (Bodyweight) | 3 | AMRAP |
| 3 | Seated Overhead Press (Barbell) | 3 | 20 reps |
| 4 | Preacher Curl (Barbell) | 3 | 20 reps |
| 5 | Alternating Dumbbell Curl | 3 | 16–18 reps |
| 6 | Bicep Curl (EZ Bar) | 3 | 27 reps |
| 7 | Standing Calf Raise | 3 | 20 reps |
| # | Exercise | Sets | Reps |
|---|---|---|---|
| 1 | Lying Rear Lateral Raise | 3 | 20 reps |
| 2 | Rear Delt Row | 3 | 20 reps |
| 3 | Single Arm Shoulder Press | 3 | 20 reps |
| 4 | Front Raise | 3 | 20 reps |
| 5 | Lateral Raise (Dumbbell) | 3 | 20 reps |
| 6 | Sit Up | 3 | AMRAP |
Weeks 2–8 are in the app
Download Boostcamp to follow the full program with auto-progression and built-in coaching notes.
Common questions
Yes, Kris Gethin 8 Week Muscle Builder Challenge is completely free to follow on Boostcamp. Download the app on iOS or Android, find the program, and start your first workout immediately. All 8 weeks are fully unlocked.
This program is built around a full gym. Make sure you have consistent access before starting, since the progression model assumes you can perform the same movements week over week.
Each session typically takes around 60 minutes to complete. That estimate covers your working sets but doesn't account for warm-up or rest between sets, so budget a little extra time when you're first learning the movements.
Kris Gethin 8 Week Muscle Builder Challenge is structured around 5 training days per week, with rest days built in to allow for recovery. The Boostcamp app lets you reschedule sessions if your week doesn't go to plan.
The program runs for 8 weeks. The structure is designed so that each week builds on the last, with weights, volume, or intensity progressively increasing as you go.
Kris Gethin 8 Week Muscle Builder Challenge is available inside the Boostcamp app, free on iOS and Android. Once you download the app, you can search for the program by name. The app tracks all your sets and weights automatically, so you always know exactly what to do next session.
Get started
