Three Games a Week, All of a Sudden: Understanding Pickleball Calf Injury and How Physical Therapy Can Help

Lunging for a ball that was never quite reachable. Pushing off hard to change direction. Backpedaling for a lob. Stopping dead at the kitchen line. Then a sharp catch in the back of the lower leg, and the certainty that somebody behind you kicked it—except nobody is behind you.

That is the classic story of a calf muscle strain, and physical therapists hear it more often every year. Emergency department visits for pickleball injuries in the United States rose from an estimated 1,313 in 2014 to 24,461 in 2023, and the age group involved is not who most people picture. Players sixty-five and over account for most of those visits.

The good news? Pickleball calf injury recovery generally goes well: it rarely needs surgery and responds to a graded return to loading. Most people get back to what they were doing. The catch is that healing well and getting back are not the same finish line, they do not arrive together, and only one of them tends to get measured.

At Rooted Motion Physical Therapy, we believe the goal of rehabilitation is the activity you want back, not the score on a questionnaire. Let's explore what a pickleball calf injury really is, why it happens when it does, and how physical therapy can help you get back to doing what you love.

The lunge and the sudden stop are where the load lands—and it lands on the calf.

What Is a Pickleball Calf Injury?

Most of the time it is a strain where the calf muscle blends into its tendon, high in the back of the lower leg. The older name is tennis leg, coined long before pickleball existed, and it turns up most often in middle-aged, physically active people who are not competitive athletes—which describes a large share of the courts around Richmond.

It is not the same thing as Achilles tendinopathy, which sits lower down, builds gradually rather than arriving in one moment, and behaves differently. The two get conflated constantly.

A calf strain usually happens where the muscle becomes tendon. The Achilles is a separate structure, lower down.

Why Does It Happen in This Sport, at This Age?

The mechanism is the sport's signature movement. In an analysis of nearly fifty-four thousand emergency department cases, slips, trips, falls and dives accounted for the majority of pickleball injuries overall—but the pattern split by age. Older players were nearly three times as likely to fracture something and nearly three times as likely to be hurt by a fall. Younger players were more likely to sustain strains and sprains, from mechanisms the authors describe as sudden stops and lunging.

A separate analysis of the same national registry found players aged forty to fifty-nine had roughly double the odds of a lower-limb injury, while the sixty-to-seventy-nine group carried the higher odds of a fracture. So if you are in your fifties and something went in your calf, you are in the group the data would predict.

Three honest caveats. Those two analyses draw on the same registry over overlapping years, so they are not independent confirmations. The published age brackets are forty to fifty-nine and sixty to seventy-nine, so the line is not as clean as sixty-five. And higher odds are not higher numbers—older players still account for most injuries, because they are most of the players.

All of this also describes injuries that reached an emergency department, which over-counts fractures and under-counts the muscle and tendon problems a physical therapist treats. No study reports what proportion of pickleball injuries seen in outpatient therapy are calf strains. The nearest evidence is from another paddle sport: in a survey of recreational padel players, the lower leg and Achilles tendon were the most common injury location, ahead of the elbow.

Why Rest Alone Usually Does Not Work

“I rested it for six weeks and it felt fine, so I went back—and it went again.”

This is the most common history we take on this injury. Rest resolves the pain, because pain settles long before capacity returns. Calf muscle does not rebuild its tolerance for a hard push-off by being left alone; it rebuilds it by being loaded progressively.

How Long Does the Risk Stay Raised?

Longer than the soreness does, and this is the most useful number we have. In a study following more than three thousand muscle strains across twenty-three years of professional football, the risk of straining the same muscle again stayed elevated for about fifteen weeks after returning to play.

Two figures put that in proportion. Re-injury risk in any single outing back is low—around two percent for the calf, lower than hamstring or groin. But having strained that calf within the previous eight weeks raised the odds more than thirteenfold. Modest at any one moment, concentrated in the weeks after you return.

Age is an independent risk factor for calf strain specifically, and re-injuries tend to take longer to recover than the original.

The practical reading: passing the usual clearance checks—pain gone, strength back, movement restored—can happen before the tissue is ready. That gap is where the fifteen weeks live.

Why Does It Look Recovered When It Is Not?

Imagine a dimmer switch

Someone turns a dimmer down and never turns it back up. The lights still work. The room is just darker than it was, and after a while nobody notices, because nothing ever fails.

Two different bodies of research say two different things here, and both are true. In athletes, who are managed closely and measured on how fast they return, most are back within roughly two to eight weeks. In a follow-up study of seventy-eight people who were not athletes, tracked for about two years, the average symptom score was excellent and roughly three-quarters were rated as having an excellent outcome—yet activity levels had fallen significantly, and almost forty-five percent had not returned to what they were doing before.

Symptoms recovered. Activity often did not. These are two different questions.

Those are not contradictory findings. They are different people asked different questions—how quickly did you get back, versus where were you two years later. The second study is small and single-center, so read it as a signal. But it describes what a pain score never shows: the quiet decision to play doubles instead of singles, or twice a week instead of four.

The scan is worth being precise about. Injury severity on imaging does predict how long you will be out—the higher the grade, the longer the return, fairly consistently. What it does not appear to predict is how you end up functioning, or whether the injury happens again. So the scan can tell you roughly how long. It is not the thing that tells you how this ends.

What Does the Research Recommend?

For calf muscle strain specifically there is no guideline of the kind that exists for many other injuries. A recent review of return-to-play criteria found the evidence behind them, for the calf in particular, to be of low to very low certainty—so progression is guided by symptoms and by what the leg can tolerate, and anyone who gives you a precise threshold is going beyond what has been established.

If your problem turns out to be the tendon rather than the muscle, the pathway is far better mapped. The Academy of Orthopaedic Physical Therapy's 2024 guideline recommends loading the tendon, with loads as high as you can tolerate, as first-line treatment, at least three times a week. Notably it does not confine you to the eccentric heel-drop protocol many people are given: several loading styles work, and the number of sessions and length of care did not appear to change the outcome.

Studies report meaningful gains on the standard Achilles function score by twelve weeks, with some change inside two. The commonest downside is a temporary increase in symptoms. One limit: most of that research is in people whose pain had already lasted more than three months.

For a calf strain, a reasonable course moves through walking comfortably, then loading the calf with the knee both straight and bent, then adding speed, then adding the change of direction that caused the problem. The last step is the one people skip.

Everyday Tips That Can Help

• Warm up with movement rather than stretching—a few minutes of walking and gentle direction changes before the first game.

• Add court time gradually. Going from nothing to three or four sessions a week is the pattern that precedes these injuries.

• Do calf work with the knee straight and again bent. They load different muscles.

• Treat a sudden sharp catch in the calf as a reason to stop that day, not to finish the game.

• Get a sudden calf “pop” checked promptly. An Achilles tendon rupture can feel much the same, and in one series of middle-aged racquet-sport players it was the most common foot and ankle diagnosis. Sudden calf pain with swelling or significant bruising also needs prompt review.

• Name the thing you want back. “Four games without babying it” is a target. “Feeling better” is not.

The Rooted Motion Difference

We are a mobile concierge practice, so rehabilitation happens where you are—including, when the time comes, on the court or the driveway where the sport actually happens.

Here is what you can expect:

• A full one-on-one evaluation with a licensed physical therapist, never handed off to an aide.

• A clear distinction drawn between a muscle problem and a tendon problem, because they are managed differently.

• Objective strength and capacity testing, retested so progress is visible rather than assumed.

• A graded loading plan that ends with the movement that injured you, not one that stops short of it.

• Honest guidance on when returning to play is reasonable.

• Referral onward if anything suggests your symptoms are not a simple strain.

• Convenient concierge mobile physical therapy delivered where you are.

Because recovery is not just about healing a muscle—it is about helping you get back to living your life.

Ready to Get Back on the Court Properly?

If something went in the back of your leg during a game and you have been waiting it out, you do not have to navigate the return alone. The gap between a leg that feels fine and one that can take a hard push-off rarely closes on its own.

Evidence-based rehabilitation is not about resting until the pain stops. It is about rebuilding capacity until the lunge you avoid stops being something you think about.

Ready to move better and live rooted? Contact Rooted Motion Physical Therapy to schedule a one-on-one evaluation and begin a personalized graded return-to-court plan.

Research Used for This Article

1. Kilic KK, Yuncu M, Dogruoz F, Buyukarslan V, Ertan MB, Kose O. Correlation between MRI findings and functional outcomes in patients with calf muscle strain injuries: a retrospective study on 78 patients. BMC Musculoskeletal Disorders. 2024;25(1):1001. DOI

2. Kulkarni R, Morningstar J, Otten M, Baird H, Pullen WM, Slone H. Epidemiology of pickleball injuries by age group treated in emergency departments in the United States. The Physician and Sportsmedicine. 2025;53(6):435-440. DOI

3. McMillan P, Lake LP, Burkhart A, Reddy E, Hale IC, Grawe BM. The epidemiology of pickleball injuries presenting to US emergency departments. Sports Health. 2025;18(4):749-755. DOI

4. Orchard JW, Chaker Jomaa M, Orchard JJ, et al. Fifteen-week window for recurrent muscle strains in football: a prospective cohort of 3600 muscle strains over 23 years in professional Australian rules football. British Journal of Sports Medicine. 2020;54(18):1103-1107. DOI

5. Chimenti RL, Neville C, Houck J, Cuddeford T, Carreira D, Martin RL. Achilles pain, stiffness, and muscle power deficits: midportion Achilles tendinopathy revision - 2024. Journal of Orthopaedic & Sports Physical Therapy. 2024;54(12):CPG1-CPG32. DOI

Educational disclaimer: This article is for general education and is not a substitute for an individualized evaluation. Seek prompt medical care for a sudden pop in the calf or an inability to push off or rise onto the toes, which can indicate an Achilles tendon rupture; inability to bear weight; significant swelling or bruising; or calf pain with redness, warmth, or shortness of breath.