Spinal muscular atrophy (SMA) is a genetic condition that causes worsening muscle weakness. There are five subtypes, which range in severity and age of onset. There’s no cure for SMA, …

Jan 8, 2024 · Spinal muscular atrophy (SMA) type 4 is the rarest and mildest form of the condition. Symptoms don’t start until adulthood and progress slowly, but experts still …

What are the symptoms leading to a diagnosis of type 4 SMA? People with type 4 SMA experience symptoms after they turn 30 years old. Symptoms are similar to type 3 SMA but …

Dec 18, 2024 · Type 4 is the mildest form of spinal muscular atrophy (SMA), a rare genetic disease that leads to muscle weakness and wasting. SMA is characterized by the progressive …

Spinal muscular atrophy (SMA) type 4 is the least severe form of SMA. 1 It usually only affects adults later in life and is characterized by muscle weakness, especially in the legs. Patients …

May 26, 2021 · Spinal muscular atrophy (SMA) is a rare genetic neuromuscular disorder that causes low muscle tone (hypotonia) and progressive muscle weakness and wasting (atrophy). …

Proximal spinal muscular atrophy type 4 (SMA4) is the adult-onset form of proximal spinal muscular atrophy characterized by muscle weakness and hypotonia resulting from the …

Jan 24, 2022 · Adult-onset spinal muscular atrophy (SMA 4) can cause fatigue, muscle weakness, trouble breathing and more. Learn about causes and symptoms.

Spinal muscular atrophy type IV is rare and often begins in early adulthood. Affected individuals usually experience mild to moderate muscle weakness, tremors, and mild breathing problems. …

Type 4 is a mild form of SMA and therefore lifespan remains normal. Patients are able to achieve motor milestones and maintain their mobility throughout life. For more about the differences …