Difficulty Walking and Musculoskeletal Health

Difficulty walking musculoskeletal causes account for the majority of gait problems in adults — particularly in middle age and later life — but neurological and vascular causes contribute significantly and carry more urgent implications. Walking is a mechanically and neurologically complex activity: it requires adequate joint range of motion, muscle strength, balance, proprioception, cardiovascular supply, and neurological coordination. A deficit at any of these levels produces a characteristic walking pattern that, to a trained observer, points toward the underlying diagnosis. Walking speed has been called the “sixth vital sign” — in large epidemiological studies, gait speed independently predicts falls, hospitalisation, cognitive decline, and mortality in older adults. A gait speed below 0.8 m/s in a community-dwelling older adult is associated with substantially increased fall risk and is a trigger for falls assessment and targeted intervention. Understanding the likely cause from the clinical presentation guides the appropriate investigation and management pathway, and identifies which walking problems require emergency evaluation versus planned outpatient assessment.

Recognising Gait Patterns

The way a person walks often tells the clinician where to look for the problem before any investigations are done. The main abnormal gait patterns and their typical causes:

• Antalgic gait: limping to reduce time spent bearing weight on a painful limb; shortened stance phase on the painful side; cause is any painful lower limb condition — hip OA, knee OA, plantar fasciitis, stress fracture, acute gout
• Trendelenburg gait: the pelvis drops on the non-weight-bearing side when standing on the affected leg; in bilateral hip disease this produces the characteristic waddling walk; cause — weak hip abductors (gluteus medius), typically from hip OA, total hip replacement, or L4/L5 nerve root weakness
• Steppage gait (high-stepping): exaggerated knee and hip flexion to prevent the foot dragging; the foot slaps on landing; cause — foot drop from common peroneal nerve palsy or L4 radiculopathy; distal peripheral neuropathy
• Spastic gait: stiff, jerky movement; the leg swings outward in an arc (circumduction) because the spastic extensor tone prevents normal flexion; cause — upper motor neurone lesion (stroke, MS, spinal cord compression)
• Ataxic gait: wide-based, unsteady, lurching; inability to walk tandem (heel-to-toe); cause — cerebellar ataxia (MS, alcohol, degeneration) or sensory ataxia (proprioceptive loss from B12 deficiency or peripheral neuropathy)
• Parkinsonian gait: shuffling small steps; reduced arm swing; stooped posture; festination (involuntary accelerating steps); freezing of gait (sudden inability to initiate movement)

Difficulty Walking Musculoskeletal Causes: Hip Osteoarthritis

Hip osteoarthritis is one of the leading musculoskeletal causes of walking difficulty in adults over 50. The articular cartilage of the hip joint degenerates over time, producing pain with weight-bearing that is most often felt in the groin, with radiation to the anterior thigh and sometimes to the knee. Internal rotation of the hip is the first movement to be restricted — clinically testable by passively rotating the hip inward with the patient supine — and this restriction progressively impairs the normal hip extension and rotation mechanics of walking, shortening the stride and producing a painful limp.

As hip OA advances, leg-length discrepancy from joint destruction and functional limb shortening from hip flexion contracture add to the gait disturbance. Trendelenburg gait develops when the hip abductors (gluteus medius) weaken — either from disuse, pain inhibition, or direct involvement of the joint. In severe cases, the patient walks with a characteristic Trendelenburg lurch. Management follows a stepped approach: analgesia (paracetamol, topical or oral NSAIDs), physiotherapy (strengthening the hip abductors and extensors), walking aids, and ultimately total hip replacement — one of the most cost-effective surgical procedures in medicine — for advanced disease. See our article on hip pain: common causes for more detail.

Knee Osteoarthritis

Knee osteoarthritis is the most common cause of musculoskeletal walking difficulty worldwide. The medial tibiofemoral compartment is affected most often, producing the characteristic varus deformity (bow-legged alignment) as cartilage loss is greatest medially. The antalgic gait of knee OA is compounded by joint stiffness after rest (the gelling phenomenon), reduced quadriceps strength (which reduces knee shock absorption), and joint effusion (which mechanically limits knee flexion). Walking distance is often the first functional parameter to be limited — initially stairs and hills, then level walking.

Patellofemoral OA produces anterior knee pain with stair climbing, walking downhill, and rising from chairs — activities that load the patellofemoral joint more than level walking. Management: weight loss (each kilogram of body weight loss reduces knee joint load by approximately 4 kg); strengthening of the quadriceps and hip abductors; walking aids; intra-articular corticosteroid injection; and knee replacement for end-stage disease. See our article on knee pain: what adults should know for full detail.

Lumbar Spinal Stenosis and Neurogenic Claudication

Lumbar spinal stenosis — narrowing of the central spinal canal, lateral recesses, or foramina of the lumbar spine — compresses the cauda equina nerve roots and produces neurogenic claudication: walking-induced leg pain, heaviness, paraesthesiae, or weakness that forces the patient to stop walking or bend forward to obtain relief. The mechanism is dynamic: walking in the extended spinal position reduces the space available to the nerve roots; flexing the spine (bending forward, sitting, cycling) increases the space and relieves symptoms. This position-dependence is the clinical key.

The bicycle test differentiates neurogenic from vascular claudication: a patient with neurogenic claudication can cycle comfortably because cycling keeps the spine in a flexed position. A patient with vascular claudication (arterial insufficiency to the calf muscles) cannot cycle for similar distances because any limb exercise consuming oxygen exceeds the arterial supply. Relief from neurogenic claudication requires sitting down (relieving the flexion-dependent nerve root compression) — simply stopping walking in a standing position does not fully relieve it, unlike vascular claudication which resolves within minutes of stopping, regardless of position.

MRI of the lumbar spine confirms the level and degree of stenosis. Management: physiotherapy (core strengthening, postural training), epidural steroid injection, and surgical decompression (laminectomy) for progressive or disabling neurogenic claudication unresponsive to conservative treatment.

Peripheral Artery Disease and Vascular Claudication

Peripheral artery disease (PAD) — atherosclerotic narrowing of the arteries supplying the lower limbs — causes vascular claudication: cramping calf pain (or buttock and thigh pain in aortoiliac disease) induced by walking a reproducible distance and relieved within minutes of stopping. The pain is ischaemic — demand exceeds arterial supply to the exercising muscle. Unlike neurogenic claudication, the relief comes from simply stopping walking, not from changing position or bending forward.

The ankle-brachial index (ABI) — the ratio of ankle to brachial systolic blood pressure, measured with a Doppler probe — is the standard diagnostic test; an ABI below 0.9 confirms PAD. Risk factors are identical to those for coronary artery disease: smoking (the single strongest risk factor), diabetes, hypertension, and hyperlipidaemia. Management: smoking cessation (the single most effective intervention), antiplatelet therapy, statin, supervised walking exercise (paradoxically improves walking distance by stimulating collateral vessel development); endovascular angioplasty or surgical bypass for severe limiting claudication. Critical limb ischaemia — rest pain, ulcers, or gangrene — is a vascular surgical emergency.

Foot and Ankle Conditions

Foot and ankle pathology is a frequent and under-appreciated contributor to walking difficulty. Plantar fasciitis — the most common cause of heel pain — produces first-step pain on rising in the morning and after rest, which typically eases with walking but limits walking distance. Hallux rigidus (OA of the first MTP joint) restricts big toe dorsiflexion, impairing normal push-off mechanics and producing a stiff, antalgic gait. Posterior tibial tendon dysfunction — progressive loss of the posterior tibial tendon’s arch-supporting function — produces a flatfoot deformity with medial ankle pain; the “too many toes” sign (more toes visible from behind on the lateral side when looking at the foot from behind) indicates lateral peroneal drift of the foot.

In patients with diabetes, Charcot arthropathy — a neuropathic destruction of the foot and ankle bones from loss of protective sensation — is a critical emergency: the warm, swollen, painless diabetic foot that continues to be walked on develops catastrophic bony collapse. Any diabetic patient presenting with a unilaterally warm, swollen foot without an obvious cause must be assessed urgently for Charcot arthropathy — immediate off-loading in a total contact cast is required. See our article on foot and ankle pain: what it may mean for full details.

Neurological Causes of Walking Difficulty

Parkinson’s Disease

Parkinson’s disease produces a gait disorder that is usually recognisable: the patient walks with small shuffling steps, reduced arm swing, a stooped posture, and a tendency to festinate (involuntary acceleration of small steps) or freeze (sudden, transient inability to initiate movement — particularly at doorways, turning, or when distracted). Falls are common, particularly backward falls due to impaired righting reflexes. Physiotherapy with a specific focus on gait — cueing strategies (visual floor markers, rhythmic auditory stimulation), treadmill training — improves walking in Parkinson’s disease. Levodopa remains the most effective pharmacological treatment for motor symptoms including gait. Drug-induced parkinsonism (from metoclopramide, haloperidol, prochlorperazine) mimics idiopathic Parkinson’s and is reversible on stopping the drug.

Normal Pressure Hydrocephalus

Normal pressure hydrocephalus (NPH) is characterised by the classic triad: gait apraxia (“magnetic gait” — the patient appears to have their feet glued to the floor, cannot initiate steps or lift the feet normally, walks with a wide base and short shuffling steps), urinary incontinence, and cognitive impairment. NPH is caused by impaired CSF absorption, producing ventricular dilation without raised intracranial pressure. It is frequently misdiagnosed as Parkinson’s disease or dementia. The critical clinical distinction is that NPH gait predominantly affects gait initiation and clearance, with the arms remaining relatively mobile. A large-volume lumbar puncture (draining 30–50 mL of CSF) that produces temporary gait improvement confirms the diagnosis and predicts response to surgical shunting. Ventriculoperitoneal shunting can produce substantial improvement in gait, continence, and cognition — NPH is one of the few potentially reversible causes of dementia-like symptoms.

Multiple Sclerosis

Multiple sclerosis (MS) impairs walking through several mechanisms that often coexist: spastic paraparesis (upper motor neurone weakness producing a stiff spastic gait with circumduction), cerebellar ataxia (wide-based unsteady gait from demyelinating lesions in the cerebellar connections), sensory ataxia (proprioceptive loss from posterior column demyelination), and MS-related fatigue — one of the most disabling symptoms, characterised by profound exhaustion disproportionate to activity that does not fully recover with rest. The Uhthoff phenomenon — worsening of neurological symptoms with heat (a hot bath, exercise, high ambient temperature) — is a characteristic feature of MS that can make walking temporarily impossible in warm conditions. Walking ability is tracked using the Expanded Disability Status Scale (EDSS) and the 25-foot walk test in clinical practice. Disease-modifying therapies slow the accumulation of disability; physiotherapy, fampridine (a potassium channel blocker that improves walking speed in some patients), and assistive devices (AFOs, walking sticks, FES) support function.

B12 Deficiency and Subacute Combined Degeneration

Vitamin B12 deficiency, if severe, causes subacute combined degeneration of the spinal cord — demyelination of both the posterior columns (proprioception, vibration sense) and the corticospinal tracts (voluntary movement). The combined loss of proprioception and upper motor neurone function produces a walking disturbance that combines sensory ataxia (Romberg positive, wide-based, worsening in the dark) with spastic weakness. Absent ankle reflexes with brisk knee reflexes in the same patient is a classic mixed UMN/LMN picture pointing strongly to subacute combined degeneration. B12 deficiency has multiple causes — pernicious anaemia (autoimmune loss of intrinsic factor), strict vegan diet, metformin use, and gastric surgery (loss of intrinsic factor-producing parietal cells). Intramuscular hydroxocobalamin replacement arrests progression and partially reverses neurological deficits. Serum B12, methylmalonic acid (MMA), and intrinsic factor antibodies confirm the diagnosis; MRI of the cervical and thoracic spine shows the characteristic posterior column signal change. Crucially, megaloblastic anaemia is absent in up to 25% of cases of neurological B12 deficiency — a normal blood count does not exclude spinal cord disease from B12 deficiency, so the neurological presentation should always prompt direct B12 measurement. See our article on muscle weakness: possible causes for discussion of systemic causes of neurological symptoms.

Red Flags and Warning Signs

Related Articles on Horizon Health Guide

• Knee Pain: What Adults Should Know
• Hip Pain: Common Causes
• Foot and Ankle Pain: What It May Mean
• Muscle Weakness: Possible Causes
• Balance Problems and Fall Risk

Frequently Asked Questions

What is the most common cause of difficulty walking in older adults?

Hip and knee osteoarthritis are the most common musculoskeletal causes of walking difficulty in adults over 50 worldwide. Knee OA in particular — affecting over 250 million people globally — is the leading cause of disability and impaired walking in the older adult population. Outside of OA, lumbar spinal stenosis is a common and frequently underdiagnosed cause of walking difficulty in adults over 60, often presenting as leg heaviness and walking-induced pain that improves with bending forward. Neurologically, Parkinson’s disease is a major cause of gait disturbance in later life, affecting over 10 million people globally.

How do you tell the difference between neurogenic and vascular claudication?

The key distinguishing feature is position-dependence of relief. Neurogenic claudication (from lumbar spinal stenosis) is relieved by sitting or bending forward — which opens the spinal canal and reduces compression on the nerve roots. Simply stopping walking in a standing position does not fully relieve it. Vascular claudication (from peripheral artery disease) is relieved by stopping walking in any position, within a few minutes. The bicycle test is a practical clinical tool: a patient with neurogenic claudication can typically cycle for much greater distances than they can walk (because cycling keeps the spine in a flexed position); a patient with vascular claudication cannot cycle any more than they can walk, because any limb exercise exceeds the arterial supply.

What does foot drop mean when walking?

Foot drop is weakness of ankle dorsiflexion — the inability to lift the front of the foot normally when walking. The foot drags on the ground during the swing phase of gait, producing the characteristic steppage gait (exaggerated hip and knee lifting to clear the foot) and a foot slap on landing. The most common cause is common peroneal nerve palsy — compression of the peroneal nerve at the fibular head, often from prolonged crossing of the legs, prolonged squatting, or external pressure (tight bandage, leg cast). L4 nerve root compression from a lumbar disc prolapse is another important cause. Nerve conduction studies and EMG localise the level. An ankle-foot orthosis (AFO) supports the foot during walking while the underlying cause is treated.

What is normal pressure hydrocephalus and can walking difficulty from it be treated?

Normal pressure hydrocephalus (NPH) is a condition where enlarged cerebral ventricles compress brain tissue — particularly the areas controlling walking and bladder function — without raising intracranial pressure significantly. The classic presentation is the triad of gait apraxia (magnetic gait, shuffling, wide-based, difficulty initiating steps), urinary incontinence, and cognitive impairment. It is often misdiagnosed as Parkinson’s disease or dementia. The diagnosis is suggested by ventricular enlargement on CT or MRI out of proportion to cortical atrophy, and confirmed by improvement in gait after a large-volume lumbar puncture (30–50 mL CSF drainage). Ventriculoperitoneal shunting — inserting a tube to divert CSF from the ventricles to the abdomen — produces significant, sometimes dramatic improvement in gait and continence in appropriately selected patients. NPH is one of the few potentially reversible causes of progressive gait difficulty and cognitive decline.

When should I be concerned about Parkinson’s disease causing walking difficulty?

Parkinson’s disease should be considered in any adult with a progressive gait disorder characterised by shuffling, reduced arm swing, stooped posture, and festination or freezing, particularly when accompanied by a resting tremor (the “pill-rolling” tremor of PD, which diminishes during voluntary movement), rigidity, or bradykinesia (slowness of all movements). Falls are common and a fall risk assessment is essential. A treatable mimic is drug-induced parkinsonism — caused by dopamine-blocking medications including metoclopramide (used for nausea), prochlorperazine, and haloperidol — which can produce an identical gait disorder but resolves on stopping the medication. Any suspected parkinsonism should be assessed by a neurologist; early diagnosis enables earlier treatment initiation and access to specialist multidisciplinary care.

Does walking difficulty always need investigation?

Not necessarily — but any new walking difficulty that is progressive, unexplained, or associated with neurological symptoms (weakness, sensory loss, bladder or bowel change) requires clinical assessment. Walking difficulty from known hip or knee OA that is stable and well-managed does not require additional investigation beyond routine monitoring. However, sudden onset walking difficulty always requires same-day emergency assessment to exclude stroke. Progressive walking difficulty over weeks to months, particularly in older adults, should prompt evaluation including a neurological assessment to screen for reversible causes (NPH, B12 deficiency, hypothyroidism) that may be missed if attributed solely to “ageing”.

Can physiotherapy improve walking difficulty?

Yes — physiotherapy is one of the most effective treatments for walking difficulty from musculoskeletal causes, and plays a significant role in neurological gait rehabilitation. For hip and knee OA, strengthening the surrounding muscles (quadriceps, hip abductors) reduces joint load and improves gait quality. For lumbar spinal stenosis, postural training and core stabilisation exercises reduce lumbar extension and neurogenic claudication symptoms. For Parkinson’s disease, cueing-based physiotherapy (using visual markers on the floor, rhythmic auditory stimulation) significantly improves gait speed and step length. For post-stroke spastic gait, constraint-induced movement therapy and gait retraining improve walking endurance. Exercise also reduces the fear of falling, which itself impairs gait by producing a cautious, shuffling walk.

References

1. Studenski S, et al. Gait speed and survival in older adults. JAMA. 2011;305(1):50-58.
2. Rainville J, et al. Exercise as a treatment for chronic low back pain. Spine J. 2004;4(1):106-115.
3. Bhatt DL, et al. Peripheral artery disease. N Engl J Med. 2016;374(9):861-871.
4. Shprecher D, Mehta L. The syndrome of delayed onset cerebellar ataxia after hypoxic/ischemic brain injury. Neurohospitalist. 2010;2(2):70-75.
5. Williams MA, et al. Diagnosis and treatment of idiopathic NPH. Neurology. 2016;86(18):e196-e202.

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This article is for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional for evaluation of walking difficulty.