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Living with Autosomal recessive spastic paraplegia type 70

A rare inherited condition with delayed crawling and walking and leg stiffness, starting in infancy.

Understanding Autosomal recessive spastic paraplegia type 70

Autosomal recessive spastic paraplegia type 70 is a rare complex hereditary spastic paraplegia that begins in infancy with delayed motor skills.

Children are slow to crawl and walk. They have leg stiffness, overactive reflexes, reduced vibration sense at the ankles, muscle wasting, and borderline intellectual disability. Tight Achilles tendons, scoliosis, and cerebellar differences can also occur.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Stiffness in the legs (spasticity)
  • Global developmental delay
  • Mild intellectual disability
  • Hand tremor
  • Nerve damage (peripheral neuropathy)
  • Lung tissue differences

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include brain and nervous system specialists and genetic specialists.

  3. Consider genetic testing

    Changes in MARS1 are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

  4. Connect with expert centers

    Spastic Paraplegia Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Genetic specialists (geneticists)
Expert care
Expert lists: Spastic Paraplegia Foundation
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with Spastic Paraplegia Foundation
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Can genetic testing for the MARS1 gene confirm the diagnosis?
Should my child's lungs and kidneys be checked?
Which therapies can help with walking and tight tendons?

Quick facts

Symptoms usually startInfant
InheritanceAutosomal Recessive
GenesMARS1

It is caused by changes in the MARS1 gene. It is autosomal recessive, so a child inherits a changed copy of the gene from each parent.

GeneticNeurological

Also known as: spastic paraplegia 70, autosomal recessive; spg70

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Autosomal recessive spastic paraplegia type 70GARD ID 21700 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Autosomal recessive spastic paraplegia type 70.

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