Can trekking poles help people with one leg shorter than the other maintain balance?

Yes—trekking poles can significantly help people with a leg length discrepancy (LLD) maintain balance and improve gait stability. By creating a four‑point base of support, redistributing weight, and providing tactile feedback, poles compensate for the asymmetrical gait pattern that LLD often causes. However, they are an assistive tool, not a cure—they complement, rather than replace, the primary intervention of a heel lift (orthotic). This article explains the biomechanics, provides practical guidance, and discusses the role of poles in a comprehensive LLD management strategy.

Understanding leg length discrepancy and its effects

Leg length discrepancy (LLD) is a condition where one leg is structurally or functionally shorter than the other. It can be:

• Structural: A measurable difference in bone length.
• Functional: Caused by muscle imbalances, pelvic tilt, or joint issues, where the legs appear uneven.

LLD creates an asymmetrical gait. The longer leg tends to overstride, while the shorter leg bears more weight and takes a shorter step. This can lead to:

• Pelvic tilt: The pelvis drops on the side of the shorter leg, causing a limp.
• Lower back pain: The compensatory pelvic rotation stresses the lumbar spine.
• Hip and knee pain: The joints on the shorter leg bear excess load.
• Muscle imbalances: One side becomes overdeveloped or underactive.

How trekking poles help with LLD

1. They expand the base of support

A person with LLD has a naturally unstable gait. The pelvic drop and rotation create a lateral instability. Two trekking poles create a four‑point base of support (two feet + two poles), which dramatically increases stability. This wider base allows the walker to maintain balance even when the gait is asymmetrical.

2. They redistribute weight and reduce load on the shorter leg

The shorter leg often bears a disproportionate amount of body weight during walking. By transferring up to 30% of body weight to the upper body, poles reduce the load on the shorter leg's hip and knee. This can alleviate pain and reduce the risk of joint degeneration over time.

3. They improve proprioception

Proprioception—your body's sense of position in space—is often reduced in people with LLD due to the altered gait pattern. The tactile feedback through the poles gives the brain extra sensory information about the ground, helping you adjust your step and maintain balance.

4. They reduce pelvic tilt

By encouraging a more symmetrical push‑off and a smoother gait, poles can minimise the compensatory pelvic drop. A more level pelvis reduces the rotational torque on the lumbar spine, alleviating lower back pain.

Practical technique for LLD

1. Use two poles, not one

Symmetrical support is essential. One pole would exacerbate the asymmetrical loading.

2. Set poles to the correct height

The "elbow at 90°" rule is a starting point. However, for LLD, the shorter leg may require a slightly different length—your physiotherapist can help you adjust. The poles should be even, but you may need to compensate with a slight tilt.

3. Focus on a smooth, rhythmic gait

Plant the poles in a steady, even rhythm. This helps stabilise the pelvis and reduces the tendency to limp.

4. Use a longer push on the shorter leg side

On the shorter leg side, you may need to push down more firmly to offload weight and maintain balance. Some physiotherapists recommend a slightly longer push on that side.

5. Integrate with a heel lift

The primary intervention for LLD is a heel lift—a wedge placed inside the shoe to compensate for the length difference. Poles complement this by providing stability, but they do not replace it.

The role of the wrist strap

As with all pole use, the wrist strap is critical for LLD. A correctly adjusted strap allows you to push down without gripping, reducing upper body tension and allowing you to focus on the push—which is especially important for maintaining balance on the shorter leg side.

When poles are not a substitute

1. They do not correct the root cause

Poles cannot change the bone length or the muscle imbalance causing the LLD. They are a support tool, not a corrective device.

2. They require upper body strength

If you have limited shoulder or wrist strength, you may not be able to generate enough force to offload weight effectively. A physiotherapist can assess your strength and guide you on appropriate use.

3. They are not a substitute for a heel lift

A heel lift is the primary intervention for structural LLD. Poles complement this but cannot replace it. Always wear your prescribed orthotic when using poles.

Research evidence

There is limited direct research on trekking poles and LLD, but indirect evidence from studies on gait aids is relevant. A 2017 study in the Journal of Physical Therapy Science examined the effect of walking poles on stability in individuals with a history of falls. The study found that poles significantly improved balance and reduced postural sway, which is a key benefit for anyone with an asymmetrical gait. For LLD, the stability improvement is even more critical.

Professional guidance

1. See a physiotherapist

A physiotherapist can assess your LLD, measure the discrepancy, and prescribe a heel lift. They can also teach you the correct pole technique for your specific gait pattern.

2. Consider an orthotist

For significant structural discrepancies, an orthotist can create a custom‑fitted lift that integrates into your shoe. This is the most effective intervention.

3. Combine poles with strengthening exercises

The gluteus medius and the core muscles are often weak in people with LLD. Strengthening these muscles improves pelvic stability, which works synergistically with pole use.

The verdict

Trekking poles can significantly help people with one leg shorter than the other maintain balance and improve gait stability. They expand the base of support, redistribute weight, and provide tactile feedback, all of which compensate for the asymmetrical gait pattern. However, they are a support tool, not a cure. The primary intervention is a heel lift, and poles should be used in conjunction with this and with a physiotherapist‑guided programme of exercises. When used correctly, poles can transform a limping, painful gait into a more stable, comfortable, and confident stride. Happy—and balanced—walking!