Childhood Years

Mild, varied issues with motor development and muscle weakness can become more apparent in this age range. You may notice some of the following signs and symptoms:

  • Scoliosis
  • Difficulties with physical activities
  • Progression of muscle weakness and muscle loss
  • Balance issues
  • Numbness and tingling or pain in hands and feet
  • Uneven weakness in proximal muscles (upper arms, shoulders, and upper legs) and distal muscles (forearms and below the knee)
  • Diminished or lack of deep tendon reflexes (areflexia)
  • Inability to sense the orientation of body parts and balance issues (proprioception)
  • Difficulties with balance and proprioception (inability to sense)
  • Decreased response to touch below the knee
  • Joint instability or joint contractures
  • Clumsy walking (gait), frequent tripping and clumsiness
  • High arches or flat feet