Triceps exercises in 3D
Triceps brachii (long, lateral and medial heads): what they do, and 7 exercises that train them — animated position by position.
Muscle Workout 3D › Triceps
The triceps: Triceps brachii (long, lateral and medial heads)
The three-headed muscle on the back of the upper arm, making up about two-thirds of its size. The long head starts on the shoulder blade and crosses the shoulder; the lateral and medial heads start on the upper arm bone. All three share one tendon onto the point of the elbow.
What the triceps do
- Straightens the elbow — every press and push-up
- Pulls the arm down and back (long head only)
The 7 best triceps exercises
Each one is shown on the 3D figure above, position by position, with the triceps lit red. Tap one to watch it.
Chest dip
Advanced · Bodyweight · works chest and triceps, with help from the front shoulders and chest. Typical: 3 × 8–12. Watch it in 3D
- Grip the parallel bars and jump or step up until your arms are straight.
- Lean your chest slightly forward and bend your knees to keep your feet off the floor.
- Bend your elbows and lower yourself until your shoulders are just below your elbows.
- Press back up to straight arms.
Keep in mind: Lean forward for chest, stay upright for triceps; Shoulders down, away from the ears; Controlled depth. Avoid: dropping too deep and straining the shoulders; swinging the legs; shrugging at the bottom.
Overhead triceps extension
Beginner · Dumbbells · works triceps, with help from the abs. Typical: 3 × 8–12. Watch it in 3D
- Hold one dumbbell with both hands under its top end and press it overhead.
- Keeping your upper arms close to your head, bend your elbows and lower it behind your head.
- Go as low as is comfortable, then straighten your arms.
Keep in mind: Elbows point to the ceiling and stay close; Ribs down — no arching; Big stretch at the bottom. Avoid: elbows flaring wide; arching the lower back; rushing the bottom.
Lying triceps extension (skull crusher)
Intermediate · Barbell, Bench · works triceps. Typical: 3 × 8–12. Watch it in 3D
- Lie on a bench holding a bar or EZ-bar over your shoulders with a narrow overhand grip.
- Tilt your arms slightly back toward your head.
- Bend only at the elbows to lower the bar toward your forehead.
- Straighten your arms to return.
Keep in mind: Upper arms stay still; Elbows point to the ceiling; Control near the face. Avoid: flaring the elbows out; moving the upper arms like a pullover; going too heavy.
Cable triceps pushdown
Beginner · Cable machine · works triceps, with help from the forearms. Typical: 3 × 8–12. Watch it in 3D
- Attach a rope or straight bar to a high pulley and grip it with your elbows at your sides.
- Lean forward slightly and keep your upper arms still.
- Push down until your arms are straight, splitting the rope ends apart at the bottom.
- Let your forearms rise back to about chest height.
Keep in mind: Elbows locked to the ribs; Only the forearms move; Squeeze at the bottom. Avoid: leaning over the handle and pushing with the body; elbows drifting forward; going too heavy.
Close-grip bench press
Intermediate · Barbell, Bench · works triceps, with help from the chest and front shoulders. Typical: 3 × 8–12. Watch it in 3D
- Lie on a bench and grip the bar about shoulder-width apart.
- Lower it to your lower chest with your elbows tucked close to your sides.
- Press back up to straight arms.
Keep in mind: Elbows close to the body; Wrists straight; Hands no narrower than shoulder-width. Avoid: gripping too narrow and straining the wrists; flaring the elbows; bouncing.
Diamond push-up
Intermediate · Bodyweight · works triceps, with help from the chest, front shoulders and abs. Typical: 3 × 8–12. Watch it in 3D
- Get into a push-up position with your hands together under your chest, making a diamond with your thumbs and index fingers.
- Lower your chest toward your hands, keeping your elbows close to your sides.
- Push back up to straight arms.
Keep in mind: Elbows brush the ribs; Body straight; Full lockout. Avoid: flaring the elbows; hips sagging; half reps.
Bench dip
Beginner · Bodyweight, Bench · works triceps, with help from the chest and front shoulders. Typical: 3 × 8–12. Watch it in 3D
- Sit on the edge of a bench, hands beside your hips, fingers forward.
- Walk your feet out and slide your hips off the bench, arms straight.
- Bend your elbows straight back to lower your hips until your elbows reach about 90°.
- Press back up.
Keep in mind: Hips stay close to the bench; Elbows point straight back; Shoulders down. Avoid: dropping too deep; elbows flaring out; shrugging.
Exercises where the triceps help
These train other muscles first, but the triceps work alongside them:
- Push-up (bodyweight)
- Incline push-up (bodyweight, bench)
- Barbell bench press (barbell, bench)
- Dumbbell bench press (dumbbells, bench)
- Incline dumbbell press (dumbbells, bench)
- Overhead press (barbell)
- Seated dumbbell shoulder press (dumbbells, bench)
- Pike push-up (bodyweight)
- Straight-arm pulldown (cable machine)
- Dumbbell pullover (dumbbells, bench)
- Mountain climber (bodyweight)
How to train the triceps
- Close-grip pressing, dips and push-ups build strength; extensions isolate it.
- Overhead extensions stretch the long head, which only lengthens fully with the arm raised.
- Lock the elbow out fully but under control, and keep the elbows from flaring.
| Goal | Sets × reps | Rest |
|---|---|---|
| Build muscle | 3 × 8–12 | 75 s |
| Get stronger | 4 × 4–6 | 3–3 min |
| Endurance & tone | 3 × 15–20 | 45 s |
| Holds (plank, wall sit) | 3 × 20–60 s | 60 s |
Questions
What are the best exercises for the triceps?
Good choices are chest dip, overhead triceps extension, lying triceps extension (skull crusher) and cable triceps pushdown. Close-grip pressing, dips and push-ups build strength; extensions isolate it.
Can I train the triceps at home without equipment?
Yes. Chest dip and Diamond push-up need no gym equipment.
How many sets and reps should I do for the triceps?
As a general start, 2–4 hard sets per exercise and about 10–20 sets a week for a muscle you want to grow: 8–12 reps to build muscle, 4–6 heavier reps for strength, 15–20 for endurance. Leave a rep or two in reserve and keep good form.
What does the triceps do?
Straightens the elbow — every press and push-up. Pulls the arm down and back (long head only).
Other muscles: Biceps · Forearms · All muscles
General fitness information for healthy adults, not medical advice.