18 articles
That stabbing pain under the ribs is not the liver and not a spleen that cannot keep up. A Sports Medicine review collected every hypothesis and showed that irritation of the peritoneum fits the features of ETAP best. Plus the data on who is at risk and what stops an attack.
372 runners, six months of follow-up, shoes that looked identical: the motion-control pair cut injury risk by 45%, and by 66% in runners with pronated feet. Why that still isn't a reason to trust the video analysis at the shop.
The peptide ultrarunners inject to avoid surgery. A 2025 systematic review found 35 animal studies and a single retrospective case series of 12 patients. Here is what is actually known and what it puts at risk.
In cyclists with knee flexion greater than 40°, pain scored 4.4 on a ten-point scale; in the rest, 0.9. After the saddle was set to 25–30°, pain fell to 1.4 within two weeks. A look at the study and at what to do with the formulas.
A new guide, co-designed with 503 runners, proposes four stages and progression by symptoms rather than by the calendar. We unpack what has changed in the recommendations and which signals mean “see a clinician, not go for a run.”
Runners who alternated between several pairs got injured noticeably less often. But there is only one study, it is more than ten years old, and it is observational. We unpack what you can take from it and what has been read into it.
ACWR has become a standard metric in sports watches, but the meta-analysis is built on football, the confidence interval for the safe zone is enormous, and planning a season around ACWR did not reduce injuries at all.
In endurance athletes, airway narrowing during exercise is many times more common than in the general population, and diagnosis “by feel” barely works. Here is who it affects and why an objective test is needed.
Almost everyone takes a painkiller before the start, yet it does nothing for performance. Here is what the research says about kidneys, sodium and recovery — and what to do about pain instead of reaching for a pill.
Two thirds of college athletes are short on vitamin D, and every 5 ng/mL drop raises the odds of injury by 13%. Here is who is at risk and what runners and triathletes should do about it.
A cuff partially restricts blood flow, and loads of just 20–30% of your max deliver an effect close to heavy lifting. We break down where this genuinely helps a runner and why “cinching your leg with a belt” is a bad idea.
Collagen hydrolysate with vitamin C before a strength session may help a runner's tendons — but only paired with loading. We break down a fresh 2026 review and the JUMPFOOD protocol, without the “drank it and it's gone” myth.
A fresh 2025 review: low cadence is linked to lower-leg injuries, while too long a stride loads the knees. We break down how to measure your step rate and raise it safely by 5–10%.
A chronic calorie shortfall hits hormones and bones and raises the risk of stress fractures. We break down the latest 2026 studies and the signs of RED-S that are important not to miss.
A new study of trail runners found that those who regularly run downhill repeats damage their muscles less and better preserve their squat strength. We break down what this means for your training.
A fresh 2026 network meta-analysis and the protocol of a new study suggest that heavy slow work and isometrics make the Achilles stiffer and thicker, while rest and stretching through pain are almost useless. Here’s how to load the tendon the right way.
The electrolyte theory of cramps sounds convincing, but the evidence tells a different story. Let's unpack what actually cramps your muscles and what to do right there on the course.
New research shows: 3 sets of a simple foot exercise significantly improve dynamic stability. We break down the science and proper technique.