What is hypotonia?
Hypotonia is the medical term for reduced muscle tone, which can occur in various medical conditions. It is expressed as decreased resistance to passive movement of the joints.
Hypotonia is usually a symptom rather than a condition itself. It can be caused by various health problems involving the brain, spinal cord, peripheral nerves, or muscles. One such example is cerebral palsy, where damage to the brain causes neurological problems that affect movement and coordination. In such cases, physiotherapy is very important for the child’s motor development as well as their quality of life.
However, there are also cases where hypotonia is not associated with a neuromuscular disorder, such as in prematurity. Premature babies (born before 37 weeks of pregnancy) may exhibit hypotonia because their muscle tone has not yet fully developed. Nevertheless, if there are no other underlying problems, the condition generally improves as the child develops and grows. Appropriate handling by parents, gentle exercises, and proper positioning of the baby in specific positions demonstrated by a specialized pediatric physiotherapist can provide significant support for the child.
Signs of hypotonia:
- Difficulty controlling the neck muscles, causing the baby’s head to “drop” or lag behind.
- Parents may feel that the baby is “heavy” when held and may feel as though the baby is going to slip out of their arms.
- Difficulty bearing weight through the shoulder girdle or legs.
- The arms and legs may hang loosely and remain extended rather than bending at the elbows, hips, and knees, which would give the child a more “flexed” or “tucked-in” posture.
- Difficulty with breastfeeding and swallowing.
- A weak or low-pitched cry in infants, or a soft/quiet voice in young children.
If you notice any of the signs mentioned above, it is advisable to contact your pediatrician promptly.