The term hypotonia is used to describe low or decreased muscle tone. It can be describe as a spectrum as some people have low muscle tone and some people have higher muscle tone.
So, what does low muscle tone mean? For a quick visual explanation, grab a rubber band.
Muscle tone gives us the ability to hold our bodies upright, to move with control, and our stamina when completing activities.
Children with low muscle tone often needs to put more effort to get their muscles moving optimally when carrying out activities, particularly upright activities. This is because their muscles are less tense when they start a movement or activity. Most of the time children with low muscle tone are seen with:
- Achieve major motor milestones late; e.g., sitting, crawling, standing, and walking but not always
- Achieve higher level motor skills late or have difficulty with activities such as jumping, hopping, skipping, going up and down stairs, climbing and playing on playground equipment
- Clumsiness; e.g., gets injured more frequently, falls more often
- Poor posture; e.g. w-sitting, leaning on walls, slump or lean on one hand during table task activities
- Flat feet
- Poor endurance; e.g. gets tired very quickly, wants to be carried more so than other kids their age
- Difficulty with handwriting and drawing; e.g. difficulty holding their pencil with a proper grasp, might push too hand or too lightly, gets tired quickly when writing/drawing
- Difficulties with their mouth and jaw; e.g. holding their mouth open and drooling especially when concentrating, poor clarity of their speech, difficulty progressing to chewy food