Overuse Injuries in Young Athletes: What Every Parent Should Know
Spring sports season is one of the best times of year for young athletes. The weather turns, the competitive calendar fills up, and kids who have been cooped up all winter finally get to do what they love. It's also, reliably, one of the busiest times of year for youth sports injuries.
If your middle schooler has come home from practice limping, complained of a knee or heel that "just started hurting," or powered through soreness you weren't sure whether to worry about — you're not alone. And the reason it's happening probably isn't bad luck or a single incident. It's almost always the result of accumulated load on a body that's still growing, in a sports culture that increasingly asks young athletes to do more, earlier, and with less rest.
Understanding why this happens is the first step toward actually preventing it.
Why Middle School Is a Particularly Vulnerable Window
Middle school athletes occupy a unique and often underappreciated risk category. They're old enough to train seriously, compete at a high level, and feel real pressure to perform, but their bodies are still in the midst of significant growth and development.
During periods of rapid growth, the bones lengthen faster than the surrounding muscles and tendons can keep up with. This creates a window where the soft tissue structures around major joints — the knee, the heel, the hip — are under higher tension than usual, even at rest. Add repetitive sport-specific loading on top of that, and the conditions for overuse injury are well established.
This is why injuries like Osgood-Schlatter disease (pain at the front of the knee just below the kneecap) and Sever's disease (heel pain at the growth plate) are almost exclusive to this age group. They aren't signs that something has gone seriously wrong; they're predictable responses to load in a growing body. But left unmanaged, they can sideline an athlete for weeks or months and, in some cases, affect long-term development.
The Role of Early Sport Specialization
One of the most significant and underreported risk factors for overuse injury in middle school athletes is early sport specialization (committing to a single sport year-round before the body has developed the movement variety and load tolerance that comes from playing multiple sports).
The research on this is consistent: young athletes who specialize in one sport before high school are meaningfully more likely to develop overuse injuries than their multi-sport peers. They're also more likely to experience burnout and drop out of sport altogether before reaching their athletic potential.
A young athlete who played fall soccer, moved directly into winter basketball or indoor track, and is now starting spring lacrosse or baseball has been under near-continuous sport-specific load for seven or eight months. There has been no meaningful recovery period, no variation in movement patterns, and no opportunity for the tissues being repeatedly stressed to fully adapt.
The cumulative effect of that loading is what produces the injury.
The Most Common Overuse Injuries in Middle School Athletes
Osgood-Schlatter Disease Pain and swelling just below the kneecap, at the point where the patellar tendon attaches to the tibia. Common in running and jumping sports. Often described as a bump that's tender to touch. Typically flares with activity and settles with rest.
Sever's Disease Heel pain at the growth plate of the calcaneus, most common in athletes 8–14. Aggravated by running and cutting sports. Often worse first thing in the morning or after sitting. Frequently mistaken for plantar fasciitis by parents and coaches.
Stress Reactions and Stress Fractures Particularly in the shin (tibia) and foot. More common in sports with high repetitive ground contact, such as track, cross country, and soccer. Pain that builds gradually over weeks rather than appearing suddenly after a specific incident is a hallmark sign.
Little League Elbow / Shoulder Overuse injuries to the growth plates of the throwing arm, almost exclusively from repetitive overhead throwing. Baseball and softball pitchers are the highest-risk group. Pitch count guidelines exist specifically to address this and they matter.
Hip and Groin Strain Often overlooked in favor of more visible knee and ankle injuries. Common in sports requiring repeated cutting, kicking, and lateral movement. Can become chronic if not addressed early.
What to Watch For as a Parent
Young athletes are not always reliable reporters of pain. Some kids minimize symptoms because they don't want to sit out. Others have been implicitly or explicitly taught to push through discomfort as a sign of toughness. Neither instinct serves them well here.
As a parent, the signals worth paying attention to include:
Pain that shows up consistently with activity. A one-time tweak is different from something that hurts every practice. Consistent, activity-related pain, even if it's mild, is worth taking seriously.
Morning stiffness or pain. If your athlete wakes up stiff or sore in a joint or tendon on a regular basis, that's a sign the tissue isn't recovering fully between sessions.
Changes in movement or gait. Limping, favoring one side, or moving differently than usual is often the body's way of protecting a painful area. By the time compensation patterns show up, the underlying issue has usually been there for a while.
Pain that requires anti-inflammatories to get through practice. If your athlete is regularly taking ibuprofen before games or practice to manage discomfort, that's a problem being masked.
Reluctance to participate. Kids who love their sport and suddenly seem disengaged or are finding reasons to skip practice are sometimes dealing with pain they haven't been able to articulate.
What Actually Reduces Risk
Planned rest from sport. The American Academy of Pediatrics recommends at least one to two days off per week from organized sport, and at least two to three months off per year from any single sport. This is a structural requirement for healthy development. For middle schoolers currently playing spring sports after a full fall and winter season, a genuine off-season this summer is worth prioritizing.
Multi-sport participation. Playing different sports through middle school isn't a distraction from athletic development — it is athletic development. Varied movement patterns build broader physical literacy, reduce repetitive stress on any single set of tissues, and are consistently associated with better long-term outcomes, including in athletes who eventually specialize.
Strength and movement quality. Sport-specific fitness is not the same as general athletic preparation. Middle school athletes who have exposure to basic strength training, movement mechanics, and body awareness are better equipped to handle sport load than those whose only physical activity is their sport itself.
Load monitoring. Sudden increases in training volume are a common trigger for overuse injury. If your athlete's training load has increased significantly this spring, that context matters when evaluating any new pain or discomfort.
When to Get It Evaluated
Most overuse injuries in young athletes respond well to early intervention — load modification, targeted strengthening, and a clear return-to-sport plan. The longer they go unaddressed, the longer the recovery.
It's worth getting a formal evaluation when:
Pain has persisted for more than a week or two despite rest
Symptoms are getting progressively worse rather than settling
Your athlete is compensating visibly in how they move
There is any swelling, visible deformity, or pain significant enough to stop activity mid-practice
A physical therapist with sports experience can assess what's driving the injury, rule out anything that needs imaging, and build a plan that gets your athlete back on the field without just waiting for it to resolve on its own.
A Note on Playing Through Pain
The culture around youth sports often treats pain as something to be managed around rather than listened to. For middle school athletes in particular, that approach carries real risk. Growth plate injuries that are repeatedly loaded without intervention can affect bone development. Compensation patterns developed early tend to persist. And athletes who are repeatedly pushed through pain learn to ignore signals that exist for a reason.
None of this means pulling your athlete out of every practice at the first sign of discomfort. It means taking persistent, activity-related pain seriously and getting a clear answer about what's causing it before assuming it will sort itself out.
The Bottom Line
Most of the injuries that show up in middle school athletes this time of year are predictable and preventable. The factors that drive them — accumulated load, insufficient rest, early specialization, and rapid growth — are well understood. So are the interventions that reduce risk.
Live4 in Acton, MA specializes in exactly this: one-on-one sports physical therapy for young athletes, with a focus on getting to the root of what's driving an injury rather than just managing symptoms. If your athlete has been dealing with something that hasn't resolved, or you want a movement screen before the season gets any longer, we're here.
Sarah Sherman is a Doctor of Physical Therapy, Certified Athletic Trainer, and Board Certified Sports Clinical Specialist at Live4 - a sports physical therapy & wellness company in Acton, MA. Live4 offers one-on-one, doctoral-level physical therapy for athletes and active adults of all ages.