Billy Sperlich

Just like in sports: When all options have been explored, it’s time for a change. That’s exactly how I feel about X. Hoping that #BlueSky brings fresh momentum and a space for meaningful exchange, you can now find me there. 👉bsky.app/profile/billys…

Time to move on: We are ending our activities on X. Stay connected with us through our other channels. Zeit, neue Wege zu gehen: Wir beenden unsere Aktivitäten auf X. Bleiben Sie mit uns im Dialog – auf unseren anderen Kanälen. ▶️go.uniwue.de/exit ▶️idw-online.de/de/news845520

I still advocate open-access publishing. But we urgently need better regulation. Right now, the major beneficiaries are large publishers. In Germany alone, we are spending millions of taxpayer euros merely to “flip a Word file into a PDF” - and that’s not sustainable.

🏔️ Information Overload: As the study below illustrates, the sheer volume of publications has grown so large that even specialists or expert practitioners struggle to keep up. My original goal - making knowledge more accessible -has, in some ways, backfired.

Call to Action: Let’s control the open-access publishing madness! Read why 👇 journals.humankinetics.com/view/journals/…

Carbon monoxide inhalation for endurance gains? Minor benefits, but huge risks—hypoxia, organ damage, even death—and unknown long-term effects. A global team urges a ban to safeguard athletes & fairness. @NADADeutschland @wada #antidoping @DOSB

@jonisportsci @JPhysiol Sure! Send me a mail!

@BillySperlich @JPhysiol This looks great! Is there any chance to get the full PDF copy? Thank you so much!

🆕In @JPhysiol we challenge strict standardization in exercise physiology and promote a flexible, blended approach. Combining classical methods with modern tech like #AI and #wearables improves threshold assessments while balancing accuracy & practicality. physoc.onlinelibrary.wiley.com/doi/full/10.11…

@jem_arnold @ChZinner Hopefully soon… review is ongoing…. :)

@BillySperlich @ChZinner Thanks. Agreed, we use TT for the same reason. I'd love to see a similar experiment with change in magnitude & variability of repeated TT performance over time. Are you aware of data like that anywhere?

Classic figure from Lundby, Montero, & @DrMJoyner for time course of physiological adaptations toward enhanced VO2max What is your favourite figure for time course of *endurance performance* improvements? I'll start 👇

@jem_arnold @ChZinner In our experience, time trial performance is the most sensitive indicator when tracking changes in performance/physiology over time. All other variables can be quite "shaky".

oh here's an interesting one from @ChZinner @BillySperlich monitoring individuals performing 3 ramp tests /week for 9 wks, acting also as training sessions. That TTE figure increases pretty linearly over time! onlinelibrary.wiley.com/doi/10.1111/sm…

Do it!!! I really have great memories of the congress…

Mark your calendars for the 10th International Congress on Science and Skiing, coming to the beautiful Val di Fiemme, Italy in January-February 2025! #ICSS2025 @ICSS2025 #dolomites #skiing @fisalpine @FISCrossCountry #ski #snow #gastronomy

Honestly, this is getting crazy. #OpenAccess expands knowledge sharing, but the rising publication fees pose a significant barrier for many researchers, especially those without institutional funding. We must find a balance between access and affordability....

@WilleValkeaoja @HCHolmberg1 @PeterDuking @BorjaMunizP @DrMJoyner @japplphysiol Exactly! All athletes should have access; otherwise, it could be viewed as "technodoping"...

@PeterDuking and I jumped into the intriguing debate about "Technological advances in elite sport: If we draw a line, where would we stop?" sparked by @BorjaMunizP, Yannis Pitsiladis & @DrMJoyner in @japplphysiol Where would you stop? journals.physiology.org/doi/full/10.11…

@WilleValkeaoja @HCHolmberg1 @PeterDuking @BorjaMunizP @DrMJoyner @japplphysiol Both "supertechnological" & "supernatural" extremes represent outer edges of what is possible in sport. In my POV, innovations like supershoes or pacing assistance are within the bounds of acceptable athletic competition as long as all athletes have equal access to such tech.

@PeterDuking and I jumped into the intriguing debate about "Technological advances in elite sport: If we draw a line, where would we stop?" sparked by @BorjaMunizP, Yannis Pitsiladis & @DrMJoyner in @japplphysiol Where would you stop? journals.physiology.org/doi/full/10.11…

3/3 We suggest implementing additional running sessions and modifying small-sided games to better balance workloads and improve non-starters' physical preparedness. 🙏 @philipp__kunz @PeterDuking @Uni_WUE

2/3 Our data showed that non-starters consistently experienced lower workloads, particularly in high-intensity activities during matches and compensation training. #football

1/3 🆕 study in @PLOS We aimed to compare the weekly training and match loads between starting and non-starting professional #soccer players and to identify variations across training modalities. All ℹ️👇pubmed.ncbi.nlm.nih.gov/39197027/