Symmetrical Tonic Neck Reflex
The symmetrical tonic neck reflex is present in normal development from circa eight to eleven months of post-natal life. It can affect the ability to crawl on hands and knees. If it remains present in an older child, it can affect:
- Integration of upper and lower portions of the body, for example when swimming
- Sitting posture – a tendency to slump when sitting at a desk or table
- Poorly developed muscle tone
- Poor hand-eye coordination
- Ability to sit still and concentrate
