Exercise guide
Weighted Full Can Exercise
- Intermediate
- Isolation
- Rep-based
- Shoulders
- Upper arms
The Weighted Full Can targets the supraspinatus and deltoids while minimizing shoulder impingement risk by using a 'thumbs-up' position. It is highly effective for building shoulder stability and strengthening the rotator cuff within the scapular plane.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Stand with feet shoulder-width apart and a slight bend in the knees for stability.
- Hold a light weight plate in each hand by the edges with your palms facing each other and thumbs pointing upward.
- Position your arms at your sides with a very slight bend in the elbows and your chest up.
How to do it
- Raise both arms simultaneously at a 30 to 45-degree angle in front of your body, following the natural line of your shoulder blades.
- Exhale as you lift the plates until they reach shoulder height, ensuring your thumbs remain pointed toward the ceiling.
- Inhale as you slowly lower the plates back to the starting position using a controlled 2-second eccentric phase.
- Maintain a slight pause at the top of the movement to emphasize the peak contraction of the deltoids.
Form checklist
- Keep your thumbs pointing up throughout the entire range of motion.
- Avoid shrugging your shoulders toward your ears; keep your shoulder blades pulled down.
- Maintain a neutral spine and avoid leaning your torso backward to create momentum.
- Stop the upward movement once your hands reach shoulder level.
Pro tips
- Focus on reaching your hands toward the corners of the room rather than just lifting them up to maximize lateral deltoid tension.
- Visualize the movement occurring in the 'scapular plane'—this is the safest and most biomechanically efficient path for the shoulder joint.
Make it harder
- Incorporate a 3-second isometric hold at the top of each repetition to increase time under tension.
- Perform the exercise while standing on one leg to add a significant core stability and balance challenge.
Frequently asked
- What muscles does the weighted full can exercise work?
- The weighted full can exercise primarily targets the deltoids, and also works the biceps, forearms, and triceps as secondary muscles.
- What equipment do you need for the weighted full can exercise?
- The weighted full can exercise uses dumbbell.
- Is the weighted full can exercise good for beginners?
- The weighted full can exercise is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.