# Lying Single Arm Triceps Stretch

- Canonical: https://fitwill.app/exercise/10739/lying-single-arm-triceps-stretch/
- Media ID: 10739
- Primary muscle: Triceps
- Body part: Upper Arms
- Equipment: Body Weight
- Video: https://fitwill.app/videos/10739/lying-single-arm-triceps-stretch.mp4

## Description

The Lying Single Arm Triceps Stretch is a supine stretch that targets the triceps of one arm at a time. You lie on your back with your knees bent and feet flat, fold one arm so the elbow points up and the forearm folds back toward your head, then use your opposite hand to grip just above the working wrist and guide the arm gently into a deeper stretch. The reclined position removes the need to fight gravity or stabilize a standing torso, which makes it easier to isolate the sensation along the back of the upper arm.

This stretch is especially useful after pressing sessions. Bench presses, overhead presses, push-ups, dips, and close-grip pressing all load the triceps heavily, and the muscle can feel tight or shortened afterward. Because the triceps long head crosses both the shoulder and the elbow, it is placed under a meaningful stretch when the shoulder is flexed and the elbow is fully bent, which is exactly the position this exercise creates.

The setup matters more than it might seem. Lying down with bent knees flattens the lower back against the floor and keeps your trunk quiet, so the pull stays in the upper arm instead of drifting into the shoulder or neck. Resting the elbow on a small pad or folded towel can make the position comfortable enough to relax into, and relaxation is what allows the stretch to actually reach the muscle rather than just create tension in the joint.

To perform it well, focus on keeping the working elbow pointed toward the ceiling and stationary while the opposite hand applies slow, steady pressure on the wrist. The stretch should feel like a lengthening along the back of the upper arm, from just above the elbow toward the rear of the shoulder. If you feel pinching in the elbow or a sharp pull, back off the pressure immediately rather than pushing through it.

A common use case is as a cool-down movement after upper-body training, held for twenty to forty seconds per side. It is also popular among people who spend long hours at a desk, since a flexed elbow and a forward-hunched posture tend to leave the upper arms and shoulders feeling stiff. Lifters with limited elbow or shoulder mobility often use it as part of a warm-up before pressing days as well.

Because this is a one-side-at-a-time stretch, you can easily compare sides and spend extra time on the tighter arm. Keep every rep quiet and controlled: breathe slowly, ease into the end range over a few seconds, and never bounce. The goal is a comfortable, sustained stretch, not maximum pain tolerance.

## Instructions

1. Lie on your back on an exercise mat with your knees bent and your feet flat on the floor, roughly hip-width apart.
2. Bend one arm and raise the elbow so it points toward the ceiling, letting the forearm fold back so your hand hangs toward or slightly past your head.
3. Place a small pad or folded towel under the working elbow if the floor feels uncomfortable against the bone.
4. Reach your opposite hand across and grip just above the wrist of the working arm, keeping your hold firm but relaxed.
5. Brace lightly through your trunk and keep your lower back settled toward the floor so your torso does not twist as you pull.
6. Use the gripping hand to draw the wrist slowly back and slightly down, bending the working elbow further until you feel a clear stretch along the back of the upper arm.
7. Hold the end position for twenty to forty seconds, keeping the elbow pointing up and letting the shoulder stay relaxed.
8. Breathe slowly and steadily throughout the hold, exhaling as you ease a little deeper on each breath if the muscle allows.
9. Release the grip slowly and let the arm return to the folded resting position before switching sides.
10. Repeat the stretch on the other arm, and give the tighter side one additional hold if there is a noticeable difference.

## Tips & Tricks

- The most common mistake is dragging the elbow across the body or letting it flare outward while pulling the wrist. Anchor the elbow in place so the stretch lengthens the triceps instead of straining the shoulder capsule.
- Grip just above the wrist rather than the hand itself. Pulling on the hand tilts the wrist into extension and can create discomfort in the forearm before the triceps ever feels a stretch.
- If the back of your shoulder pinches instead of the upper arm stretching, reduce how far the forearm folds back. Less range with a clean triceps sensation beats more range with joint discomfort.
- Do not yank the wrist toward the floor in one fast pull. The lying setup lets you apply gradual pressure, and slow loading is what lets the triceps release.
- Keep your ribs from flaring up as you pull. If your chest lifts, reset your feet flat, exhale, and settle your lower back down before continuing.
- Let the working hand stay completely passive. Actively gripping or curling the hand back competes with the stretch and adds wrist strain.
- If you cannot reach your wrist comfortably because of tightness or larger arms, hold a small towel looped around the working wrist to extend your reach.
- Compare sides honestly. If one triceps is noticeably tighter, an extra hold on that side is more productive than stretching the loose side longer.
- Skip this stretch right after an elbow injury flare-up or if you feel sharp pain at the elbow joint itself. A gentle, pain-free range or a different arm position is the better choice.

## Frequently Asked Questions

### Which muscles does the Lying Single Arm Triceps Stretch target?

The primary target is the triceps brachii on the back of the working upper arm, including the long head, which crosses the shoulder joint. The rear of the shoulder also gets a secondary stretch because the arm is flexed overhead as the elbow bends.

### Why perform this stretch lying on your back instead of standing?

Lying down with bent knees supports your trunk and keeps the lower back flat, so you can relax fully and isolate the pull in the upper arm. In a standing version many people arch, twist, or shrug, which steals tension away from the triceps.

### Is the Lying Single Arm Triceps Stretch suitable for beginners?

Yes. The floor provides feedback and support, there is no equipment to coordinate, and you control the depth entirely with the pressure from your opposite hand. Beginners should simply start with light pressure and shorter holds.

### Where exactly should I grip the working arm?

Grip just above the wrist of the bent arm, not the hand or fingers. This lets you guide the elbow into deeper flexion without bending the wrist backward.

### How long should I hold the stretch?

Twenty to forty seconds per side works well after training. If you are using it to loosen chronic tightness, two to three gentle holds per side are more effective than one long, forced hold.

### Should I feel the stretch in my shoulder as well?

A mild pull at the rear of the shoulder is normal because the triceps long head crosses that joint. If you feel sharp or pinching pain in the shoulder, reduce how far the forearm folds back and keep the focus on the upper arm.

### When is the best time to use the Lying Single Arm Triceps Stretch?

It fits well as a cool-down after pressing workouts like bench press, overhead press, push-ups, or dips. It can also be used in a warm-up with shorter, gentler holds if your elbows feel stiff before training.

### My elbow hurts when I pull. What should I change?

Ease off the pressure immediately and check your grip, since pulling on the hand instead of above the wrist is a frequent cause of elbow discomfort. If pain persists even with light pressure, shorten the range or use an overhead towel stretch instead.

### Can I stretch both arms at the same time instead?

You can, but the single-arm version gives you better control of the pull and lets you address side-to-side differences. Doing one arm at a time also keeps your torso from twisting as you apply pressure.

### Do I need a pad under my elbow?

It is optional, but a small pad or folded towel makes the position much more comfortable when the elbow rests near the floor or against a hard surface. Comfort helps you relax, and relaxing is what deepens the stretch.