Upper Arms Exercise · Dumbbell
Exercise Ball Supine Triceps Extension
Also known as: Exercise Ball Supine Tricep Extension
- Category
- Upper Arms
- Equipment
- Dumbbell
- Target
- Triceps
Biomechanical cues verified by the PlanWorkouts Science Review Board under CSCS editorial oversight; see our editorial standards.
The Exercise Ball Supine Triceps Extension is a targeted isolation upper arms movement designed to train the Triceps.
Single-joint elbow extension isolating the triceps brachii (lateral, medial, and long heads). Keep upper arm fixed to prevent shoulder momentum. Executing this with strict form maximizes muscle fiber recruitment while protecting joint structures.
Quick Exercise Facts
Target Muscle Activation
Lying back over the ball for a triceps extension adds a stretch through the chest and shoulders that a flat-bench version doesn't offer, since the torso arches slightly over the ball's curve. It also means more of the core has to work to stay balanced than a stable-bench extension requires.
How to Do the Exercise Ball Supine Triceps Extension
- Sit on an exercise ball with your feet flat on the floor and your knees bent to roughly 90 degrees.
- Grip a dumbbell with both hands and extend your arms straight up toward the ceiling.
- Lower the dumbbell behind your head slowly, keeping your elbows close to your ears.
- Hold briefly, then raise the dumbbell back up to the starting position.
- Execute the desired number of reps with smooth cadence and consistent focus on the triceps.
Recommended Sets & Reps by Training Goal
65–75% 1RM · 60s rest
50–60% 1RM · 30–45s rest
Controlled 3s eccentric · 60s rest
Biomechanical & Joint Load Cues
Single-joint elbow extension isolating the triceps brachii (lateral, medial, and long heads). Keep upper arm fixed to prevent shoulder momentum.
Common Mechanical Mistakes & Form Errors to Avoid
- Flaring Elbows Outward: Allowing elbows to wing outward during pushdowns or extensions shifts tension to the chest and shoulders while stressing elbow ligaments.
- Moving the Upper Arms: Swinging the humerus back and forth turns the movement into a lat pullover rather than isolated elbow extension.
- Incomplete Lockout Extension: Stopping short of full arm extension prevents full recruitment of the triceps medial and lateral heads.
Proper Breathing Patterns & Core Engagement
Inhale as elbow flexes to full stretch; exhale as forearm extends straight.
Add the Exercise Ball Supine Triceps Extension to Your Custom Workout Routine
Build a personalized, science-backed workout plan matching your training goals, equipment access, and schedule.
Injury Modification & Joint Safety
Individuals with triceps tendon irritation at the elbow should avoid excessive deep elbow flexion (>90°) on skull crushers and prefer cable pressdowns. If joint irritation persists, immediately stop and substitute this movement with another exercise from the Upper Arms exercises category.
Muscles Worked
The Exercise Ball Supine Triceps Extension primarily targets the Triceps, with Shoulders as the primary synergist muscle group.
More Upper Arms Exercises
Assisted Standing Triceps Extension (with Towel)
Assisted Triceps Dip (kneeling)
Band Alternating Biceps Curl
Band Close-Grip Push-Up
Band Concentration Curl
Band One Arm Overhead Biceps Curl
More Triceps Exercises
Band Side Triceps Extension
Barbell Close-Grip Bench Press
Barbell Decline Close Grip To Skull Press
Barbell Incline Close Grip Bench Press
Barbell Incline Reverse-Grip Press
Barbell Jm Bench Press
Equipment Alternatives
Don't have dumbbell? These target the same triceps with different equipment.
Bench Dip (knees Bent)
Band Side Triceps Extension
Barbell Close-Grip Bench Press
Cable Alternate Triceps Extension
FAQ
- What muscles does the Exercise Ball Supine Triceps Extension work?
- The Exercise Ball Supine Triceps Extension primarily targets the triceps as the primary agonist. The shoulders acts as the primary supporting muscle group during force transmission. Maintaining strict biomechanical alignment ensures maximal tension remains focused on the intended muscle fibers rather than shifting to surrounding stabilizer joints.
- What equipment do I need for the Exercise Ball Supine Triceps Extension?
- The Exercise Ball Supine Triceps Extension is performed using a dumbbell. Ensure all equipment is securely positioned with collars or safety pins locked before loading working sets. If you train in a home gym or minimal setup, explore our equipment-free and resistance band alternatives below.
- What is the most common form mistake on the Exercise Ball Supine Triceps Extension?
- The most frequent error is flaring elbows outward: Allowing elbows to wing outward during pushdowns or extensions shifts tension to the chest and shoulders while stressing elbow ligaments.. Controlling the 2 to 3-second eccentric lowering phase ensures maximal hypertrophic stimulus while shielding connective tissue.
- How many sets and reps should I perform on the Exercise Ball Supine Triceps Extension?
- For muscle growth and density, execute 3 to 4 working sets of 10 to 15 controlled repetitions with 60 seconds rest, emphasizing a deep stretch and deliberate peak contraction on every rep.
- What's a good alternative to the Exercise Ball Supine Triceps Extension?
- If you don't have access to a dumbbell, the Bench Dip (knees Bent) targets the same triceps using body weight instead. This alternative replicates the same joint angle and movement plane while allowing you to train effectively with different available gear. You can also substitute it seamlessly in our free Workout Plan Builder.