How to Do Smith Machine Behind the Back Shrug
Start and end of one clean rep of Smith Machine Behind the Back Shrug.
Quick facts
| Primary muscle | Back |
|---|---|
| Secondary muscles | Shoulders |
| Equipment | Machine |
| Category | Strength |
How to perform Smith Machine Behind the Back Shrug
- With the bar at thigh level, load an appropriate weight.
- Stand with the bar behind you, taking a shoulder-width, pronated grip on the bar and unhook the weight. You should be standing up straight with your head and chest up and your arms extended. This will be your starting position.
- Initiate the movement by shrugging your shoulders straight up. Do not flex the arms or wrist during the movement.
- After a brief pause return the weight to the starting position.
- Repeat for the desired number of repetitions before engaging the hooks to rack the weight.
Muscles worked
- Back (primary): pulls the arms down and toward the torso and keeps the spine stable.
- Shoulders (secondary): raises and rotates the arms and drives everything overhead.
Sets & reps by goal
| Goal | Sets × reps | Load | Rest |
|---|---|---|---|
| Strength | 3–5 × 3–5 | Heavy (~85%+) | 2–3 min |
| Hypertrophy | 3–4 × 8–12 | Moderate (~65–75%) | 60–90 s |
| Endurance | 2–3 × 15–20 | Lighter (~50–60%) | 30–45 s |
Pick the row that matches your goal. If you're newer, anchor in the hypertrophy range while you groove the form.
Form tips
- Start each rep by pulling the shoulder blades in first, then drive with the elbows — think of pulling with the elbows, not the hands.
- Set the seat and pads so the machine's pivot lines up with the joint you're training before your first rep.
- Treat every rep the same — a repeatable setup and bar path is what lets you add weight safely over time.
- Breathe out on the effort and in on the return, keeping one steady rhythm across the set.
Common mistakes
- Yanking with the arms and forgetting the back, so the biceps give out before the target muscle does.
- Leaving the seat or range on a setting that forces the joint into an awkward angle.
- Chasing weight jumps before the current load feels solid on every rep.
Frequently asked questions
What muscles does Smith Machine Behind the Back Shrug work?
Smith Machine Behind the Back Shrug mainly works the back, with the shoulders helping as secondary movers.
What equipment do I need for Smith Machine Behind the Back Shrug?
Smith Machine Behind the Back Shrug needs the corresponding weight-stack or plate-loaded machine.
How many sets and reps should I do for Smith Machine Behind the Back Shrug?
It depends on your goal: about 3–5 sets of 3–5 heavy reps for strength, 3–4 sets of 8–12 for muscle growth, or 2–3 sets of 15–20 for endurance. Pick the row that matches your goal. If you're newer, anchor in the hypertrophy range while you groove the form.
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