Running News Daily

Numerous studies have shown that, contrary to what your sedentary friends may sometimes argue, running does not cause arthritis. New research shows, in fact, that running may actually help strengthen your joints against future wear and tear, says Jean-Francois Esculier, leader of research and development for The Running Clinic (headquartered near Montreal, Canada) and a medical professor at the University of British Columbia. 

In a Sept. 3 paper in Sports Medicine, Esculier’s team examined 43 studies that had used MRI to measure the effect of running on cartilage. 

One major finding of these studies, he says, was that the impact from running squeezes water out of cartilage and into the underlying bone. That means that an MRI taken immediately after running will show a decrease in cartilage thickness. 

So, Esculier says, “If you want to say running is bad, you can show a study that shows it reduces the thickness of the cartilage.”

But the effect is transient and harmless, he says, because the moment you finish your run, the cartilage begins to reabsorb water and expand back to normal. “It only takes an hour,” he says. 

In fact, he says, running may actually be beneficial. 

Historically, Esculier says, doctors, researchers, and runners were taught that cartilage simply is what it is, and won’t respond to training. 

“But we now know that cartilage can adapt,” he says. “Even with novice runners, after only 10 weeks, you see changes in cartilage so that it can actually tolerate more load.”

What’s happening, he says, is a side-effect of having fluid squeezed out of the cartilage into the underlying bone. When it comes back, he says, it brings with it nutrients that feed the cartilage and make it stronger. 

“So not only is running not bad for your joints, it’s actually good for your joints,” he says.

It isn’t just beginners whose joints can strengthen with use. Studies of more experienced runners, he says, suggest that they have developed cartilage that is more resistant to the type of impacts seen in running than that of non-runners.

One of the more dramatic studies looked at competitors in the TransEurope FootRace, a 4,486-kilometer mountain run (2,787 miles) that went from Sicily to northern Scandinavia in 64 days. A team of scientists followed the runners, using a portable MRI to assess them every 900 kilometers or so. Amazingly, Esculier says, they found not only that the competitors didn’t have cartilage damage, but that their cartilage adapted during the race. 

“So, even with highly experienced trail runners and lots of volume, we shouldn’t be scared, because the body can adapt very well,” he says.

Cartilage Strengthening Caveats

There are, of course, caveats for those whose joints are already damaged, whether by traumatic injury or bad genetics.

The biggest caveat is that there is very little research on what people with existing arthritis should or shouldn’t do. “Our group is the only group so far that has conducted a study in people with arthritis,” Esculier says. And even that research is only preliminary, with final results not expected for several years. 

Meanwhile, his preliminary work has examined women runners in their mid-fifties, some with arthritic knees and some without, using MRI to see how their cartilage reacts and recovers. The main finding so far Esculier says, is that you need to listen to your body. If it hurts, adjust your recovery time accordingly. 

What do “if it hurts” and “adjust your recovery time accordingly” mean? Unfortunately, there’s no easy answer. Physical therapist Jay Dicharry says that you can run if pain stays between a 1 to 3 on a 10-point scale, and you have zero increase in swelling, and no limp. “You can try that for a few weeks and then bump up slightly,” he says “And then maybe add in some speed or hills run and see how it does.” But you still need to be aware of situations that will put undue stress on your joints. Dicharry says, for example, “I’d for sure limit downhill running in someone with advanced or even moderate osteoarthritis until they earn the joint control needed to ensure the loads on the knee are inside the healthy range.”

Laura Matesen Ko, an orthopedic surgeon and triathlete from Seattle, Washington, says that she has often seen runners, cyclists, “and even stair-climbing champions” who have managed not just to keep going, but to slow the progression of their arthritis enough to retard what would normally be the need for a hip or knee replacement.  She too tells them to listen to their bodies, vague as that recommendation might seem. If your body says “maybe not today,” you really need to listen to it.

Supporting Strength

Matsen Ko adds that it’s also important to work on strengthening the muscles supporting your knee (or any other arthritic joint). Dicharry is adamant on this point as a prerequisite for creating the conditions for cartilage rebuilding.

“You need to find out what type of pain-free range exists, and then work to use your pain-free range as a way to compress/decompress/glide your surfaces,” he says. “That may be through targeted exercises. It may be through more advanced exercises. And once a joint can tolerate the positions it will see with running, you need to increase the speed of loading to ensure the fast loading times seen in running are ok. And then, yes…..you can compress/decompress/glide joints through running.”

Matsen Ko adds, it might help to prioritize your running to emphasize quality, rather than quantity. “Do the track and tempo work,” she says, “but perhaps do the ‘junk miles’ on an elliptical or in the pool, instead of in running shoes.”

To help the strengthening process work, Esculier adds, you should also go sparingly on ibuprofen or other anti-inflammatory medications. The inflammation that causes pain is part of what signals the body to repair, rebuild, and (hopefully) strengthen, so shutting it off prematurely also shuts down the strengthening process.

Not that any of this is a guarantee of an outcome like Seibel’s. Esculier’s larger follow-up study won’t be finished for another 3-4 years. 

But, he told me, “If you ask me clinically what I would do with patients like you, I’d tell them they have two choices.” One is to do as my orthopedist suggested and limit running as much as possible. The other is to cautiously see what you can do, in the hope of not only having a bit of running fun, but making the remaining cartilage stronger.

Most Olympic marathoners spend their youth focused on running. They join track clubs, compete in national championships, and pursue the sport from an early age.

Julia Mayer’s journey was very different.

Today, Mayer is Austria’s marathon record holder, a multiple national record holder on the roads, and an Olympian. Yet for much of her athletic life, running was not her primary sport.

For 16 years, she played soccer.

Then she discovered something that would change her life.

“I noticed that I was really fast in the fun runs and that it was really, really fun,” Mayer said when reflecting on her transition from soccer to distance running.

What began as curiosity quickly became a passion. She eventually made the bold decision to leave soccer behind and focus entirely on running. It was a move that surprised many people around her, but Mayer believed she had found her true athletic calling.

The decision proved to be the right one.

Within a few years, Mayer developed into one of Europe’s top marathon runners. Her steady improvement carried her from local races to the international stage, where she began rewriting Austria’s record books.

She now holds Austrian records in the marathon, half marathon, and road 10K. Her marathon best of 2:26:08 established her as the fastest female marathoner in Austrian history. Her performances in the half marathon and 10K have further cemented her place among the country’s all-time great distance runners.

Her rise culminated with qualification for the 2024 Olympic Games in Paris.

Competing in the Olympic marathon represented the realization of a dream. On one of the most challenging marathon courses ever used for the Olympics, Mayer ran courageously against the strongest field in the world and finished 55th in her Olympic debut.

Behind the scenes, success has come through extraordinary dedication. During marathon preparation, Mayer trains twice a day and covers approximately 200 kilometers, or 124 miles, each week. The workload demands discipline, patience, and a deep commitment to continuous improvement. 

What makes her story especially inspiring is not simply the records or the Olympic appearance.

It is the fact that she found her greatest talent later than many elite runners.

In a sport where athletes are often identified at a young age, Mayer’s journey serves as a reminder that potential does not always reveal itself early. Sometimes it takes years of experience, a willingness to try something new, and the courage to follow a different path. 

The former soccer player who once chased a ball across a field is now chasing history on the roads of Europe.

And according to those closest to her, her best performances may still be ahead.

For runners of every age and ability, Julia Mayer’s story delivers a powerful lesson: it is never too late to discover what you are capable of.

From soccer player to Olympian, her journey proves that remarkable achievements can begin when least expected.

Megan Keith produced the performance of her career in Oslo on Thursday night, shattering one of Scotland’s longest-standing distance running records and cementing her place among Britain’s greatest female 3000m runners.

The 24-year-old clocked a sensational 8:28.35 over 3000m, breaking the Scottish outdoor record that had stood for nearly four decades. In doing so, Keith eclipsed the previous mark of 8:29.02, set by Scottish legend Yvonne Murray back in 1988, ending a record reign that had lasted 38 years.

Keith’s breakthrough run was more than just a national record. The performance also propelled her to third on the UK outdoor all-time list, placing her behind only two of Britain’s most celebrated distance runners — Paula Radcliffe, who leads the rankings with 8:22.20, and Laura Weightman, whose 8:26.07 remains the second-fastest outdoor mark by a British woman.

The significance of Keith’s achievement is amplified by the calibre of athletes she now joins in the record books. For decades, Murray’s mark stood as one of Scottish athletics’ most untouchable records, surviving generations of elite competitors. Keith has now succeeded where many outstanding runners have fallen short, announcing herself as one of the leading distance talents in British athletics.

Her time also compares favourably with the best performances produced indoors. Olympic medallist Laura Muir ran 8:26.41 indoors in Karlsruhe in 2017, underlining just how exceptional Keith’s outdoor effort in Oslo truly was.

The run continues a remarkable rise for the Scottish star, whose progression over recent seasons has transformed her from a promising prospect into a genuine force on the international stage. Running with confidence and composure against elite competition, Keith demonstrated both the speed and endurance required to challenge the very best in Europe and beyond.

With the World Championship season gathering momentum, Keith’s record-breaking display sends a powerful message. Not only has she etched her name into Scottish athletics history, but she has also established herself as a serious contender in one of the sport’s most competitive events.

In Oslo, Megan Keith did far more than break a record. She ended a 38-year wait, climbed into the upper echelon of British distance running, and delivered a performance that may prove to be a defining moment in her career.

British middle-distance talent Phoebe Gill took another significant step forward in her return to top form, producing a determined victory over 800 metres at the Meeting de Marseille in France on Wednesday.

Competing in challenging, wind-affected conditions, the 19-year-old demonstrated both resilience and composure as she held off a late charge from Switzerland's Veronica Vancardo to secure the win in 2:00.81. Vancardo finished just three hundredths of a second behind in 2:00.84, underlining the fiercely contested nature of the race.

While the margin of victory was narrow, the result represented another encouraging milestone for Gill as she continues to rebuild momentum following her injury setback. The young Briton showed impressive race awareness and strength in the closing stages, maintaining her advantage despite the difficult conditions that made fast running a challenge throughout the evening.

The Marseille triumph adds to a growing body of evidence that Gill is steadily progressing toward her best form. Earlier in her comeback campaign, she clocked 2:01.50 for 800m in Bydgoszcz before demonstrating her versatility with a strong 4:05.53 performance over 1500 metres at the BMC Grand Prix meeting in Trafford.

Those performances have highlighted not only her improving fitness but also her ability to compete across multiple distances as she carefully builds her season. The Marseille victory now provides further confirmation that the European junior star is moving in the right direction.

Gill emerged as one of Britain's most exciting middle-distance prospects through a series of breakthrough performances as a teenager, earning widespread recognition for her fearless racing style and remarkable maturity. Injury temporarily interrupted that upward trajectory, but her recent results suggest she is steadily rediscovering the form that made her one of the sport's brightest young talents.

With each race, the signs of progress become increasingly evident. Winning in difficult conditions and under pressure from a quality field is often a stronger indicator than a fast time alone, and Gill's latest success demonstrated exactly those qualities.

As the summer season gathers pace, the Marseille victory offers another confidence boost for the British teenager, whose return continues to gain momentum. If her recent progression is any indication, Gill could soon find herself back among the leading names on the European middle-distance circuit. 

The NCAA Track and Field Championships delivered a moment few could have predicted as Ja’Kobe Tharp produced one of the most astonishing performances in the history of sprint hurdling, rewriting the record books in spectacular fashion.

Competing in the opening round of the men’s 110-meter hurdles, the Auburn star stunned the athletics world by clocking an incredible 12.75 seconds, becoming the first athlete ever to break the 12.80-second barrier. In doing so, he eclipsed the long-standing world record of 12.80 set by Aries Merritt in 2012, a mark that had stood as one of the sport’s most revered achievements for more than a decade.

What makes Tharp’s breakthrough even more remarkable is the scale of his improvement. Entering the championships, the defending NCAA and U.S. champion had recorded a season-best of 13.05 seconds. Yet under the brightest spotlight, he unleashed a performance that exceeded every expectation, slicing an extraordinary 0.26 seconds from his personal best in a race that instantly became one of the greatest ever run.

The achievement sent shockwaves throughout the track and field community. While Tharp arrived in Eugene as one of the leading contenders for the NCAA title, few envisioned a performance capable of redefining the limits of the event. Instead, the American hurdler delivered a race for the ages, combining flawless technique, explosive speed, and impeccable rhythm from the first hurdle to the finish line.

The historic run not only secured his place in athletics history but also transformed the outlook of the championship. With the world record now in his possession, Tharp advances to the final as the overwhelming favorite, carrying momentum that could make an already unforgettable weekend even more extraordinary.

For years, the 12.80 barrier appeared untouchable. On a stunning day at the NCAA Championships, Ja’Kobe Tharp proved otherwise, producing the kind of performance that reminds fans why sport remains so unpredictable. In a matter of seconds, he turned a routine qualifying round into a landmark moment that will be remembered for generations.

The world record no one saw coming is now a reality—and Ja’Kobe Tharp is the man who changed history.

A new chapter in middle-distance running may have begun in Oslo after American teenager Cooper Lutkenhaus produced one of the most remarkable performances of the season, narrowly defeating reigning Olympic champion Emmanuel Wanyonyi in a thrilling men's 800m contest at the Diamond League meeting.

The 17-year-old sensation shocked a world-class field by crossing the finish line first in a race that came down to the smallest of margins. After an intense battle over the final metres, Lutkenhaus held off Wanyonyi by just one hundredth of a second, producing a dramatic finish that left the packed stadium in disbelief.

From the opening lap, the pace was relentless as the leading contenders positioned themselves for a fierce showdown. As the athletes entered the home straight, Wanyonyi appeared poised to unleash his trademark finishing kick. However, Lutkenhaus refused to be intimidated, matching the Olympic champion stride for stride before producing a perfectly timed lean at the line to secure a historic victory.

The result marks a breakthrough moment for the young American, who continues to establish himself as one of the brightest talents in global athletics. Defeating an Olympic champion at a Diamond League event is a feat many athletes spend entire careers pursuing, yet Lutkenhaus achieved it before reaching adulthood.

For Wanyonyi, the narrow defeat does little to diminish his status as one of the world's premier 800m runners. The Kenyan once again demonstrated his exceptional class and competitiveness, pushing the race to a world-class standard and forcing his young rival to deliver the performance of a lifetime.

Beyond the result itself, the race offered a glimpse into what could become one of the sport's most exciting rivalries in the years ahead. With established stars and emerging talents now pushing each other to new heights, the men's 800m continues to evolve into one of athletics' most captivating events.

On a memorable night in Oslo, the spotlight belonged to Cooper Lutkenhaus. At just 17 years old, he stood toe-to-toe with an Olympic champion and emerged victorious, announcing himself to the athletics world in spectacular fashion.