Musculoskeletal Pain & Movement in Children

One week they're sleeping through the night without a complaint. The next, they're waking up rubbing their shins, insisting their legs "just hurt," with nothing you can point to that caused it. Around the same time, you notice the school backpack looks more like a small suitcase, and the hour of tablet time has quietly become two, shoulders rounded forward the whole time.

Kids' bodies are doing an enormous amount of work behind the scenes — bones lengthening, coordination developing, becoming stronger and learning new physical skills that can carry all the way into adulthood. Most of what shows up along the way is a completely normal part of growing. But knowing what's typical, what's worth keeping an eye on, and what's worth having checked can take a lot of the guesswork out of parenting through the growing years.

How Kids' Bodies Grow and Move Differently from Adults

Growing bones are different from adult bones. Children have growth plates — developing areas near the ends of certain bones that remain vulnerable until skeletal maturity. This is one reason injuries in children sometimes need to be assessed differently from the same injury in an adult.

Movement variety builds the foundation. Climbing, running, jumping, balancing, and rough-and-tumble play all contribute to coordination, strength, and body awareness in ways that a single repetitive activity doesn't. Varied movement in childhood is widely considered important for building a broad physical foundation.

Common Movement and Posture Patterns Worth Watching

Long periods of screen use. Screens themselves don't create a “bad spine,” and there is no single perfect posture children need to maintain. But long periods spent relatively still can contribute to discomfort in some children. Regular breaks, varied positions and plenty of physical activity are generally more useful than constantly telling a child to “sit up straight.”

Backpacks. A backpack should be comfortable and practical for the individual child. If carrying a bag consistently causes discomfort, it makes sense to review what is being carried, how long it is carried and whether the child can manage it comfortably.

Reduced unstructured play. Less time spent in free, varied movement (compared to structured, single-sport training) can mean fewer opportunities to build the broad coordination and strength that supports growing bodies.

Early sport specialisation. Focusing intensively on one sport from a young age, without variety or adequate rest, is increasingly linked to overuse injuries in young athletes.

Ordinary growing pains. Aches in the legs, particularly at night, with no swelling, redness, or limp, and a child who's otherwise well and active during the day, are common and generally not a cause for concern.

When a Child's Movement or Pain Is Worth Getting Checked

Most of what shows up in growing kids is a normal, temporary part of development. But certain signs are worth having assessed by a GP or paediatrician rather than waiting it out. Seek medical review for:

• A persistent limp, or reluctance to bear weight on a limb

• Pain that is one-sided, localised to a joint, or accompanied by swelling, redness, or warmth

• A noticeable curve or asymmetry in the spine, shoulders, or waistline

• Significant delay in reaching expected motor milestones for their age

• Any injury with suspected fracture, or pain following a significant fall or impact

Outside of these signs, everyday growing pains and posture-related tightness are generally very manageable.

How Chiropractic Care Fits In for Kids

Chiropractic care for children at Arc is focused on appropriate musculoskeletal complaints.

If a child presents with pain, a sports injury or difficulty returning comfortably to an activity, the first step is understanding the problem.

Any treatment considered appropriate is modified according to the child's age, development and presentation, and discussed with the parent or guardian before care begins.

Assessment may include the child's history, movement, strength, relevant joints and muscles, functional tasks and, where appropriate, neurological or orthopaedic examination.

If the presentation suggests that another healthcare professional is better placed to assess or manage the problem, we refer accordingly.

• Joint mobilisation using techniques and force suited to a developing body

• Soft tissue therapy for tight muscles related to posture, growth, or sport

• Activity modification to temporarily reduce or change movements that are aggravating symptoms while keeping the child appropriately active.

  Exercise and rehabilitation to rebuild strength, movement confidence and physical capacity where appropriate. The aim is simply to support healthy movement and comfortable posture through the growing years, working alongside — not instead of — your child's usual medical care.

• Return-to-sport guidance following an injury or overuse problem.

Everyday Habits That Support Healthy Growing Bodies

• Encourage varied active play — climbing, running, swimming, ball games and free play

• Keep backpacks practical

• Build in regular screen breaks and encourage an upright, supported posture during homework or tablet time

• Prioritise consistent sleep, which plays a significant role in both growth and recovery

• If your child plays one sport intensively, build in appropriate recovery and cross-training to reduce overuse risk

Common Myths, Busted

"Growing pains mean something is wrong." Despite the name, growing pains have not been shown to be caused by rapid growth. The term describes a common pattern of intermittent leg pain in otherwise healthy children, and the exact cause remains uncertain. Persistent, one-sided or localised pain, swelling, limping or systemic symptoms should not simply be labelled “growing pains.”

"Kids are too flexible to really get injured." Developing bodies move and respond to load differently from adult bodies, and growth-plate-related injuries are a genuine consideration in young, especially highly active, kids — flexibility doesn't fully protect against overuse or impact injuries.

“There is one correct posture children should maintain.”
There isn't. Children naturally sit, stand and move in many different ways, and variation is normal. Rather than trying to hold one ideal posture, encourage regular movement, physical activity and position changes. If a child has persistent pain or a structural concern such as a noticeable spinal curve, that deserves appropriate assessment.

The Takeaway

Children's bodies change considerably as they grow, and occasional aches or temporary changes in movement can occur along the way. But pain should not automatically be dismissed as “growing pains,” and there isn't one ideal posture or movement pattern every child needs to fit.

If your child has persistent or recurring pain, has sustained an injury, is avoiding activities they normally enjoy or is having difficulty returning to sport or everyday movement, an age-appropriate assessment can help determine what may be happening and what the next step should be.

Sometimes that may involve simple advice, movement or rehabilitation. At other times, further assessment by a GP, paediatrician or another healthcare professional may be more appropriate. The priority is understanding the problem first and choosing the right care for the child.