Spragg Performance

Really happy to see our latest work published in @MSSEonline Myself, @peter__leo and @JeroenSwart look at the relationship between physiological characteristics and durability in male professional cyclists journals.lww.com/acsm-msse/Abst…

@Captain7bag @DrPhilipSkiba @peter__leo @jem_arnold @Alex_Welburn @AartGoossens ever since doing my PhD I have started to think more and more about performance as the 'shape' and 'shift' of the PD curve rather than individual markers (CP, W', LT1 etc)

@Captain7bag @DrPhilipSkiba @peter__leo @jem_arnold @Alex_Welburn @AartGoossens at least 2 of these factors VO2max (MAP associated) and LT1 are predictive of durability (CP not so much), so it seems that shifting FPC1 would not only increase power across the entire PD curve (minus the sprint bit) but may also increase durability

Getting coded up for a big durability study, anyone want in on it? @DrPhilipSkiba @peter__leo @Spragg_Perform @jem_arnold @Alex_Welburn @AartGoossens etc

If you’re a WorldTour or ProTeam rider and still out of contract for 2026 please DM me and I’ll add you to my next feature.

FPCA paper finally out: journals.humankinetics.com/view/journals/…

@GDellaMattia Tbh I just hope I can understand it 🙈

@Spragg_Perform All feedback, good or bad, adds up

We demonstrate that TSS can be transformed into a tensor. Here, we share open-source mathematics for testing, and we welcome contributions from anyone interested in further developing the concept. Open-source white paper: drive.google.com/file/d/182vOHB… GIT : github.com/enydog/PLT.git

@Captain7bag @GDellaMattia @peter__leo Need to give this a read when I have some clear time and headspace 😅

@GDellaMattia sequence aware modeling cc @Spragg_Perform @peter__leo

@SophieRHerzog @Scienceofsport An opportunity was missed by her fellow colleagues and competitors to highlight how Prévot has done things the correct way.... instead they chose a very different path

A very good and nuanced discussion on this topic can be found as well on @Scienceofsport 👇 podcasts.apple.com/ch/podcast/the… End/

The weight debate in cycling is back.
Yes, it’s an important topic. But I wonder: in Men’s cycling, would we debate so much about how someone looks, instead of celebrating an incredible win? 👇🧵

@MrMoelmen Always good to see more studies into training adaptations, but, 'moderate exercise' has a very specific meaning in exercise physiology - the exercise done here was not 'moderate' in nature, it was 'heavy'. Let's all please get on the same page with the terminology we use!

1/4 🚴‍♂️ New study from @UInnlandet and #LabRønnestad in Med Sci Sports Exerc! A 7-day block of moderate-intensity intervals (MIT), followed by 6 days of active recovery, led to greater endurance adaptations than regular training in well-trained cyclists. 🔗 journals.lww.com/acsm-msse/abst…

A small thread on the data we presented at the cycling science conference ‘The Effect of Rate of W′ Utilisation and Acute Fatigue on W′ Reconstitution’ happy to share the presentation if anyone wants a copy as well, the abstract paper will be out later and the full paper too.

@arjona_manu understand at an individual level the performance capacity at that point in time, and start to predict differences in performance between individuals

@arjona_manu Where I agree is that 'relative durability' might not reflect real world performance. The inter-individual differences in the PD relationship at a given point of fatigue does however. If we know the starting point (fresh PD) and the work accumualted then we can

Why don’t scientific studies on durability find clear relationships between physiological variables and durability, or identify which training types improve it? Because they mostly focus on measuring relative (internal) durability.

@NTSAcademia @arjona_manu probably somwehere but I can also happily share it - just DM me

@Spragg_Perform @arjona_manu @Spragg_Perform , James, is your doctoral thesis publicly available?

Durability is just an expression of endurance. And this is why, simply, athletes with better aerobic capacity, ability to tolerate RPE, thermoregulation, etc., have greater durability. And this has been shown in how the results of a 20m and a 6h stages are similar...

@arjona_manu to complicate things, over time we see a drop in all physiological thresholds. My PhD mainly focused on CP and W' (as these are the race-winning efforts) but LT1 also decreases over time - likely this is correlated better to 'fresh' CP/LT1 values, but I don't have this data

@arjona_manu yes exactly, we see the race-winning efforts in cycling are >CP - so a mix of 'anaeorbic' and 'aerobic pathways (sic). The determinants of these >CP efforts are not the same as longer duration efforts at or <CP

@arjona_manu Therefore, with fatigue, we can see a decrease in the ability to produce these race-winning efforts >CP while still being able to produce good power at or <CP. Thus we see correlation between longer power outputs and CP but not necessarily the ability to produce >CP efforts