Are Hamstring and ACL Injuries Always “Acute”? What You Need to Know About Overuse Injuries 🏃♂️💥
- Julian Simpson
- Dec 17
- 3 min read
Are Hamstring and ACL Injuries Always “Acute”? What You Need to Know About Overuse Injuries 🏃♂️💥
Sports injuries are often thought of as sudden, traumatic events—a sprained ankle, a torn ACL, or a pulled hamstring. But what if these injuries aren’t always “acute” or caused by one single incident? Emerging research suggests that many common sports injuries may actually be overuse injuries in disguise.
Acute vs. Overuse Injuries: What’s the Difference?
Acute injuries happen when a tissue is overloaded beyond its limit in one event, like a fall or collision.
Overuse injuries develop gradually. Repetitive stress on muscles, ligaments, and tendons can weaken them over time, eventually leading to injury—even during seemingly normal movements.
Interestingly, overuse injuries can sometimes appear suddenly, which is why they are often misclassified as acute injuries.
Hamstring Injuries: More Than Just a Sprint Gone Wrong
Hamstring strains are common in sports like football and soccer, often occurring during high-speed running or accelerations. While they look like sudden injuries, research shows that:
Muscle fibers may accumulate tiny, microscopic damage over multiple training sessions.
The actual “injury moment” may occur during a normal stride, without any unusual stress.
Repeated submaximal stress—like sprinting or jumping—can slowly weaken the hamstring until it finally “gives way.”
This perspective explains why hamstring injuries can sometimes happen even at moderate speeds or after periods of increased training workload.
ACL Injuries: The Hidden Role of Repetitive Stress
ACL tears are often thought of as traumatic, sudden events during a pivot, landing, or abrupt stop. However, studies suggest that:
Repetitive loading of the ACL over weeks or months can create microdamage.
This accumulated damage may reduce the ligament’s ability to handle normal loads, making a “normal” movement the tipping point.
Signs of stress and remodeling can even be observed in athletes’ ACLs before an injury occurs.
In other words, some ACL injuries may be partially caused by overuse fatigue, not just one unlucky twist or landing.
Why This Matters for You
Understanding that hamstring and ACL injuries can result from overuse rather than just a single accident changes the way we approach:
Prevention: Monitoring training load, recovery, and tissue stress can help prevent injuries.
Recovery: Early assessment and treatment of overuse injuries may reduce downtime and promote healing.
Performance: Proper care ensures your muscles, tendons, and ligaments stay resilient under repetitive stress.
How Chiropractic Care Can Help
At Health Wise Chiropractic, we specialise in:
Assessing and managing sports injuries, including hamstring and ACL issues.
Using targeted chiropractic adjustments, massage, dry needling, and rehabilitation exercises to reduce pain and accelerate recovery.
Creating personalised injury prevention strategies to keep you performing at your best.
If you’ve experienced recurring muscle strains, knee pain, or unexplained soreness, it might be time to check if an overuse injury is at play. Early intervention can make all the difference in returning to your sport safely and efficiently.
📞 Book your appointment today with Health Wise Chiropractic in Sunbury or Melton and protect your muscles, ligaments, and joints before small issues become bigger injuries.
For more information about how we can help YOU with your muscle pain and improve your underlying dysfunction so the problem doesn’t come back . Please call Health Wise Chiropractic 03 9467 7889 or book online to see one of our Chiropractors in Sunbury or Melton/Strathtulloh Today!
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Van Hooren B. Rethinking Acute Sports Injuries: Evidence for an Overuse Mechanism in Hamstring and ACL Injuries. Scand J Med Sci Sports. 2025 Oct;35(10):e70146. doi: 10.1111/sms.70146. PMID: 41078273; PMCID: PMC12516801.
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