Growth spurts and sports injuries are closely connected during adolescence. As young athletes experience rapid changes in height, strength, and body proportions, their developing musculoskeletal systems must adapt to new physical demands.
Although growth spurts do not automatically cause injuries, they can influence flexibility, coordination, and how developing bones respond to repetitive stress. Understanding these changes can help parents recognize potential problems and support healthy athletic development.
For parents, understanding these changes can help distinguish typical developmental challenges from injuries that deserve attention.
How Growth Spurts Contribute to Sports Injuries
During adolescence, bones can grow rapidly, while muscles and tendons adapt to changes in skeletal length. This can temporarily contribute to decreased flexibility and increased tension around certain joints.
For example, a young athlete who previously had excellent flexibility may suddenly experience tightness in the hamstrings or calf muscles during a growth spurt.
Growth also changes the body’s proportions and the way an athlete moves. As arms and legs become longer, previously familiar movements may require adjustments in coordination and muscle control.
A young basketball player may temporarily struggle with landing mechanics, while a soccer player may notice changes in running or cutting movements.
These changes don’t necessarily indicate an injury. However, they can become important when combined with repetitive training and increasing athletic demands.
Why Growing Athletes Experience Different Injuries Than Adults
One of the most important differences between children and adults is the presence of growth plates.
Growth plates are areas of developing cartilage near the ends of bones that contribute to skeletal growth. Growing athletes also have developing attachment sites, called apophyses, where muscles and tendons connect to bone.
These developing structures can be more vulnerable to certain types of stress than mature bone.
In adults, repetitive loading might contribute to tendon-related pain. In a growing athlete, similar forces may instead irritate a developing tendon attachment.
Two common examples include:
Osgood-Schlatter disease: Pain and tenderness near the bony prominence just below the kneecap, where the patellar tendon attaches to the tibia. It frequently affects growing athletes involved in running and jumping sports.
Sever’s disease: Pain near the heel associated with irritation of the developing calcaneal apophysis, often seen in active children who participate in running and jumping.
The American Academy of Orthopaedic Surgeons also provides information about overuse injuries in children and the unique vulnerabilities of developing bones.
These conditions illustrate why evaluating a young athlete requires an understanding of skeletal development—not simply applying the same approach used for adult injuries.
The Relationship Between Growth Spurts, Coordination, and Injury Risk
Athletic performance depends on more than muscle strength. It also requires coordination, balance, mobility, and the ability to control movement during demanding activities.
During rapid growth, changes in body proportions can temporarily influence these abilities.
An athlete may need time to adjust to longer limbs, changes in body mass, and new movement demands. Activities such as sprinting, jumping, landing, and changing direction may feel different than they did just a few months earlier.
This doesn’t mean that every athlete becomes uncoordinated during adolescence. However, noticeable changes in movement quality can provide useful information when evaluating an athlete who is experiencing pain.
For example, a physical therapist might examine how a young athlete controls the hip, knee, and ankle during a single-leg squat or landing task.
The goal is not to identify a single supposedly perfect movement pattern. Rather, it is to understand whether limitations in strength, mobility, or coordination may be contributing to the athlete’s symptoms or difficulty performing a particular activity.
Why Training Demands Matter During Growth
Growth-related changes do not occur in isolation.
Many young athletes are simultaneously experiencing increased practice intensity, longer seasons, greater competition, and more frequent participation in organized sports.
A developing musculoskeletal system must adapt not only to physical growth but also to these increasing training demands.
Problems can develop when repetitive loading exceeds the body’s current ability to recover and adapt.
For example, a young runner experiencing rapid growth may develop knee or heel pain after a substantial increase in running volume. A basketball player may develop symptoms after several consecutive days of jumping-intensive practices and games.
The combination of growth-related changes and training demands is often more important than either factor alone.
This is why training history is an essential component of evaluating sports injuries in young athletes.
How Parents Can Support Athletes During Growth Spurts
Parents and coaches can help growing athletes navigate these changes by paying attention to several important areas.
Monitor persistent or recurring pain. Pain that repeatedly occurs during sports, causes limping, or affects everyday activities should not automatically be dismissed as growing pains.
Recognize changes in movement and performance. Temporary changes in coordination or flexibility can occur during adolescence. These changes may warrant closer attention when accompanied by discomfort or difficulty participating.
Consider overall training demands. Multiple teams, year-round participation, and limited recovery time can increase the cumulative physical demands placed on a developing athlete.
Support appropriate strength and movement training. Well-supervised training can help young athletes develop strength, coordination, and the physical capacity needed for sports participation.
Avoid rushing the return to sport. When an injury occurs, return-to-sport decisions should consider symptoms, physical function, and the athlete’s ability to tolerate progressively increasing activity—not simply the number of days since the injury.
How Physical Therapy Can Help
Physical therapy for young athletes should account for both the injury and the athlete’s stage of physical development.
At Pinnacle Sports Rehabilitation & Performance, an evaluation may include assessment of strength, mobility, movement coordination, and sport-related activities
For example, an athlete with knee pain may demonstrate limited ankle mobility, reduced lower-extremity strength, or difficulty controlling movement during a jumping or landing task. These findings help guide an individualized rehabilitation program alongside appropriate management of the injured tissue and training demands.
Treatment may include targeted strengthening, mobility exercises, movement retraining, and a progressive return to athletic activities.
The objective is not simply to reduce pain, but to help the athlete return to sports with the physical capacity and confidence needed to participate.
Supporting Healthy Athletic Development
Growth spurts are a normal and important part of adolescence. Although they can introduce temporary changes in flexibility, coordination, and physical capacity, they do not have to prevent young athletes from enjoying sports.
Understanding the relationship between growth spurts and sports injuries can help parents recognize potential problems and support their young athletes during important stages of development.
Pinnacle Sports Rehabilitation & Performance provides sports and orthopedic physical therapy in Pasadena for athletes of all ages, including growing youth athletes.
If your young athlete is experiencing persistent pain or difficulty participating in sports, a physical therapy evaluation can help identify contributing factors and guide an appropriate path forward.
