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Duchenne and Becker Muscular Dystrophies
Educational only: videos on MedicalVideos.com are for general information and are not medical advice. Always consult your own doctor about your health.
This patient's age, speech delay, bilateral lower-extremity weakness, apparent increase in calf diameter, and history of a wheelchair-bound uncle are typical of Duchenne muscular dystrophy (DMD). DMD is the most common muscular dystrophy of childhood that affects boys who have inherited a defective dystrophin gene on X-chromosome p21. Weakness begins in the proximal lower-extremity muscles and manifests as difficulty walking, running, jumping, and climbing stairs. Boys may push their arms on their thighs (Gower sign) to transition from sitting to standing.
This video in 30 seconds
This video presents a case typical of Duchenne muscular dystrophy (DMD). It describes the patient's age, speech delay, bilateral lower-extremity weakness, apparent increase in calf diameter, and a wheelchair-bound uncle, and explains that DMD is the most common muscular dystrophy of childhood, affecting boys who inherited a defective dystrophin gene on X-chromosome p21, with weakness beginning in the proximal lower-extremity muscles and the Gower sign used to rise from sitting to standing.
Key points
- Describes case features including lower-extremity weakness and increased calf diameter
- Defines DMD as the most common muscular dystrophy of childhood from a defective dystrophin gene
- Covers proximal lower-extremity weakness affecting walking, running, jumping, and stairs
- Covers the Gower sign for rising from sitting to standing
Video Overview
This video presents “Duchenne and Becker Muscular Dystrophies” — This patient's age, speech delay, bilateral lower-extremity weakness, apparent increase in calf diameter, and history of a wheelchair-bound uncle are typical of Duchenne muscular dystrophy (DMD). DMD is the most common muscular dystrophy. Whether you are preparing for a procedure, studying the technique, or learning how a condition is assessed, the recording shows the process as it is performed in practice.
From our Pediatrics collection: Pediatric videos: child health, newborn care, common childhood illnesses and pediatric procedures explained for parents, students and clinicians. Browse all Pediatrics videos →
Educational content only — not a substitute for professional medical advice.
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