Trent Stellingwerff, PhD / CSEP-CEP / FACSM / ChPC

New research: 24 hours of low energy availability affects sleep and recovery differently depending on whether it's caused by diet or exercise. Great paper by @ella__smith_ , @TStellingwerff, @LouiseMBurke, @MckayAlannah, and team. #HumanPerformance #HRV #LEA #Sleep

Yes. Writing is not a second thing that happens after thinking. The act of writing is an act of thinking. Writing *is* thinking. Students, academics, and anyone else who outsources their writing to LLMs will find their screens full of words and their minds emptied of thought.

How much running is too much? Identifying high-risk running sessions in a 5200-person cohort study. Single big sessions matter! bjsm.bmj.com/content/early/…

The marathon world record holder provisionally suspended. This is a big fish.

The NCAA has gone from developmental place to the one and only organized professional running league. The days of athletes like myself that are underdeveloped in high school no longer have a place at top programs!

Co-ingesting whey protein with carbohydrates enhances post-exercise amino acid availability without compromising liver glycogen resynthesis Great work @sophie_hannon65 @Hearris @JamesyMorton @nathanhodson5 Read on for why this needed to be done... doi.org/10.1113/JP2884…

Neil Stephens (Aussie pro cyclist & TdF stage winner) told me 25 years ago that babies conceived during the road cycling season were almost always girls! He was apparently correct! pubmed.ncbi.nlm.nih.gov/40595831/

Another publication from this mega study! 20 athletes (10M, 10F): five 24h periods of altered EA in a Latin Square design. Exercise-induced LEA increased total sleep time and diet-induced LEA lowered overnight HR. Responses did not differ between sexes. pubmed.ncbi.nlm.nih.gov/40523229/#:~:t…

Yet another study showing no hypertrophic differences from heavier (10RM) vs lighter (20RM) loads. Evidence on the topic is now overwhelming. This study showed higher reps promoted better oxygen utilization; perhaps benefit to combining rep ranges? jsams.org/article/S1440-…

Heikura et al. feature in our July 2025 issue discussing how valid the use of RMR is in screening athletes for REDs using the validated CAT2 traffic light system🚦 🔗doi.org/10.1123/ijsnem…

Recruiting female runners wanted! See attached.

Been geeking out on the 6 Day race data 🤓👟! Up to 200K steps/day 111 hrs moving time/33hrs stop time 560+ mi = 11:53/mi moving pace Slept ~1.5 hrs/day 😵‍💫 If I cut stop time in ½ = +66 mi → 627 mi 🤔. This is 3.6% off the men’s WR (645 mi). How much can you suffer?

If you thought you had a great time listening to our keynote from #ASPDA2025, take a look at what he had to say about his experience! Thank you @TStellingwerff!

We were treated to some fabulous results from the FURTHER study of female ultra runners

Incredible efforts, runners and researchers! (But I’ll stick to marathons)

But despite large energy intakes, runners are in energy deficit

Incredible energy expenditure involved in breaking multiple world records in ultra running (guess who? @runcamille)

Hmm I wonder who 🤔🤓?! Thank you for the tag @LouiseMBurke - I heard from @TStellingwerff my expenditure was far out there. I was definitely enjoying lots of tacos, cheese, and donuts the last few days of FURTHER 🦸‍♀️🚀! Excited to see all the data 🏃‍♀️🏃‍♀️🏃‍♀️.

NEW EPISODE 🚨 With summer weather on its way, Dr. Trent Stellingwerff (@TStellingwerff) shares his expertise from a career working with 🇨🇦 Olympians to help you use the hot months like a pro ☀ runningmagazine.ca/shakeout-podca…

So pleased to be at the announcement of a new resource for female athletes. Thanks to the wonderful ⁦@DrKateAckerman⁩, Clara Wu ⁦@WuTsaiAlliance⁩ and Jane&David Ott for their foresight and generosity