🚨 We are hiring a PhD and a Post-doctoral assistant at the Ghent Muscle Lab (Ghent University, Belgium) with strong interest in muscle & exercise physiology, bioinformatics, metabolomics or molecular biology. Apply by June 30. jobs.ugent.be/job/Ghent-Post… ugent.be/en/work/scientific/…

It was a privilege to present Dr Mark Febbraio with the IBEC Honour Award 2026 and introduce him for the Jacques Poortmans lecture

Tim, with respect, several of these don't hold up. Going through them. 1/ The "no RCT longer than 4 weeks" criterion is convenient but doesn't dissolve the contrary evidence. Burke's Supernova series (J Physiol 2017, J Physiol 2021, MSSE 2021) consistently showed impaired economy and race performance in elite athletes at 3 to 3.5 weeks. Your reply is that longer adaptation would reverse this. That is itself an unproven hypothesis. You are requiring receding goalposts, which is exactly the move you accuse the field of making. 2/ "Only elite athletes" cuts both ways. Your foundational RCTs are in recreational athletes doing capacity tests. The 5 to 7% ATP-yield-per-litre-O2 deficit (Krogh and Lindhard 1920, which you cite) shows up only at intensities that recreational athletes cannot sustain. Dismissing elite data while resting your case on recreational time-to-exhaustion is the double standard, not the rule against it. 3/ The SGP/LGP framing is a useful lens. The 16 lines of evidence include real contributions. They also include retrospective reinterpretations of studies whose original authors drew the opposite conclusion, rat models you criticize when others lean on them, and the "88%" claim that arithmetically gives 84% in your own Table 8 (105/125). I went through the Zenodo file line by line. The pattern is real, the framing is generous. 4/ The "cake problem" is not a strawman. Volek, Noakes and Phinney 2015 (Eur J Sport Sci) argued fat adaptation eliminates CHO dependence. If 10 to 20 g/h carbs during exercise is now required, that founding claim has collapsed. Ketones do not rescue it: Whitfield et al 2021 (MSSE 53:776-784) showed acute ketone ester plus LCHF impaired race walk performance. 5/ The biochemistry. Less ATP per litre O2 from fat is settled. At the oxidative ceiling that determines elite endurance pace, that deficit shows up as lost speed. None of the 16 lines of evidence engage with this directly. They route around it. 6/ On agenda. You were a high-CHO advocate for 35 years before reversing. The same charge of motivated reasoning applies symmetrically. I have no books to sell, no nutrition company shares, and no foundation downstream of the conclusion. 7/ "Bottom line" is a summary, not a fixed verdict. Carbs yield more ATP per litre O2. Fat oxidation tops out around 2 g/min even after weeks of keto adaptation. Elite marathon pace demands more energy per minute than fat can supply. Every elite marathoner, Kipchoge included, ingests 80 to 100 g/h of carbs during competition. When the evidence changes I will update. Until then, carbs win at the top end. That is a conclusion, not an advertisement. Mechanistic mechanisms for the glycogen-fatigue link that have nothing to do with rigor are well documented and you know this: SR Ca2 release (Ørtenblad et al 2011, J Physiol 589:711; Gejl et al 2014, MSSE 46:496), subcellular pool depletion (Jensen et al 2020, J Physiol 598:4271), and downregulated PDH and glycogenolysis after fat adaptation (Stellingwerff et al 2006, AJP-EM 290:E380). The TAT you keep dismantling is not the position the field holds. Honestly, thanks for your diatribe. But it's just more of the same.

This misrepresents the PA guidelines. The MINIMUM recs are for 150-300/75-150 mins MVPA/VPA additional strength training on 2 days per week. It provides a “strong recommendation” for achieving more. A bigger issue is the public don’t know what MVPA is! pmc.ncbi.nlm.nih.gov/article…

Now recruiting an experienced Post‑Doc in Skeletal Muscle Molecular Physiology @nih_sognsvann Oslo, Norway Join our multi‑omics EMMA project on mitochondrial epigenetic memory in human muscle aging. 4‑year position Start May 2026 Apply via Jobbnorge: jobbnorge.no/en/available-jo…

Sigerson Cup Final RESULT @ul_gaa : 0-17 (17) @ucc_gaa : 1-11 (14) Brian Mc is going up them steps! SIGERSON CUP CHAMPIONS FOR THE FIRST TIME 🏆 @HigherEdGAA #ULGAA #BelongToThePack 🐺

The Newgrange Winter Solstice livestream link is now available on Heritageireland.ie No matter where you are in the world, you can be a part of this extraordinary event by tuning in at 8.40am on 21 December by visiting heritageireland.ie/visit/new… I hope you find time to watch

👨‍🔬👩‍🔬 CALL: YOUNG INVESTIGATOR AWARD 👨‍🔬👩‍🔬 Application deadline January 25, 2026. Winner will deliver the John Holloszy lecture at #IBEC2026!! Details in link! fbri.vtc.vt.edu/research/res…

Abstracts and conference registration will open January 1! Time to start thinking about your submission! Reminder: only abstracts submitted during the early registration (January 1- March 1) will be considered for speaking opportunities!

My recent Editorial Focus on the work from the @GeorgeABrooks3 lab relating to adaptation in mito form & capacity with aging. Thank you to @AJPEndoMetab for the opportunity @PessLimerick @HRI_UL @EHSFacultyAtUL @PAfH_UL @SportHumanPerf @LDCRC_UL journals.physiology.org/doi/…

2 Fully funded PhD positions available here @EsportsSRL @AToth_88 Get in touch if interested @LeroCentre @LogitechG @IrishResearch

🚨 3-year Post-doc opportunity at the Centre for Nutrition, Exercise and Metabolism, @CNEM_Bath @UniofBath Opportunity to lead on an RCT involving symbiotic supplementation and ketogenic diets bath.ac.uk/jobs/Vacancy.aspx… Building in our prior work pubmed.ncbi.nlm.nih.gov/3910…

🚨🚨 New PhD alert 🚨🚨with me, @orla_flannery, @tiagopecanha and Dr Damian Rivett, funded by HTC Health. Excellent opportunity with a level of autonomy given to the student to explore different nutritional interventions to attenuate age-related declines in health.

Definitely an opportunity I would be taking advantage of if I was looking for a postdoc at the moment!

🚨PhD alert 🚨 looking for interested candidates to apply for a fully funded PhD in Physical Activity, Sedentary Behaviour & Metabolic Health of new parents. For enquiries DM or brian.carson[at]ul.ie & include CV. Must be willing to work on app over next 3 weeks

RT @AbigailMackey1: Our 2026 @MUSKOS_PhD course is now open for registration🤩 Copenhagen, 5-7 October 2026 Musculoskeletal tissue regener…

A pleasure to write this perspective on AT energetics. Many thanks to @JPhysiol . There is a real need to uncover more within this tissue with advancement in treatments of obesity. doi.org/10.1113/JP288746 @PessLimerick @EHSFacultyAtUL @HRI_UL @PAfH_UL @SportHumanPerf

Wow! A huge loss to the obesity field.

🚨Pls Retweet/Share! 🚨15-month postdoc position available with me to investigate the dysregulation of anabolic and autophagic skeletal muscle cell signaling in obesity! Funded by @acmedsci and in collaboration with @Metabolcenter. See link for details manmetjobs.mmu.ac.uk/jobs/va…

🚨 🚨 “Protein Nutrition for Endurance Athletes: A Metabolic Focus on Promoting Recovery and Training Adaptation”. New review in Sports Med. Pleasure working with these two chaps (@OllyWitard @Hearris) on this one. Lots of heavy lifting from @OllyWitard 👏 link.springer.com/article/10…