Car Drivers
Car drivers has you hold a barbell at shoulder height, arms extended, and rotate it like a steering wheel, first one way and then the other. It looks almost playful next to a strict shoulder press, but the constant rotation keeps your front deltoids under tension the whole set instead of just at the top or bottom of a rep. It's a beginner-friendly way to build shoulder endurance and forearm control without needing any weight beyond an empty or lightly loaded bar.
Why it works
Holding a barbell out at arm's length already asks your shoulders to fight gravity, and turning it like a wheel adds a rotational demand your forearms and grip have to manage on top of that. Your shoulders stay under near-constant load because the bar never gets a rest position the way it would in a press, and your forearms work isometrically the entire time just to keep your grip from slipping as the bar rotates. Because there's no eccentric drop and reset like a normal raise, the muscles get time-under-tension instead of a distinct rep cadence, which is why a light bar can still leave your shoulders burning after a short set.
Set up
- Hold a barbell with both hands, palms facing down, hands set slightly wider than shoulder width.
- Raise the bar until your arms are fully extended, held level with your shoulders.
- Stand with a stable, hip-width stance so your legs aren't doing the work your shoulders should be doing.
How to do it
- Keeping your arms straight and the bar at shoulder height, rotate it clockwise like you're turning a steering wheel.
- Turn through a full circle, letting your wrists and forearms do the rotating while your shoulders hold the bar's height steady.
- Complete the target number of rotations in one direction.
- Reverse and rotate counterclockwise for the same number of turns.
- Lower the bar with control once both directions are done rather than dropping it.
Form cues
- Keep the bar at shoulder height the entire time, don't let it drift down.
- Turn from your wrists and forearms, not by swinging your whole arms.
- Keep your arms straight without locking your elbows hard.
- Breathe normally, don't hold your breath through the rotations.
Breathing: Breathe steadily through the rotations rather than holding your breath, since the set is about sustained tension, not a single maximal push.
Common mistakes
Letting the bar sag toward your waist as your shoulders fatigue.
Fix: Stop the set once you can't hold shoulder height anymore instead of finishing reps with a lower, easier bar position.
Turning the bar with big swings of the whole arm instead of the wrists and forearms.
Fix: Keep your upper arms still and let the rotation come from your forearms and wrists, the same way you'd actually turn a wheel.
Using too much weight, which turns a control exercise into a fight just to keep the bar up.
Fix: Start with an empty bar or a light one. The rotation and hold time create plenty of challenge on their own.
How to program it
- This is a light, isolated shoulder and forearm drill, so two or three short sessions a week fits well without interfering with heavier pressing work.
- Time or rotation counts work better than heavy loading here. Try 20 to 30 seconds of continuous rotation per direction rather than chasing a heavier bar.
- Use it as a finisher after shoulder or arm training, or as a warm-up for pressing days since it wakes up the front delts and forearms without any real fatigue cost.
Safety notes
- Stop the set as soon as the bar starts to drift down or your shoulders shake, rather than pushing through with poor position.
- Keep the load light. This exercise is about sustained control, and adding weight too fast tends to wreck your wrists first.
Exercise profile
- Force
- Push
- Mechanics
- Isolation
- Category
- Strength
Frequently asked questions
How many reps or how long should I do car drivers for?
Aim for 20 to 30 seconds of continuous rotation in each direction, for two or three sets. It's a time-under-tension move, so a stopwatch works better than counting reps.
Can I do car drivers without a barbell?
A light plate or even a broomstick works. The front-plate raise is also a solid substitute if you want a similar shoulder demand without the rotating grip.
Why do my forearms burn more than my shoulders during car drivers?
The constant rotation puts real isometric demand on your grip and forearms, which fatigue faster than your shoulders in most people. That's normal for this movement, not a sign you're doing it wrong.
What muscles does car drivers work?
Your front deltoids hold the bar's height throughout the set, while your forearms handle the rotation and keep the bar from slipping out of your hands.