Does one biopsy cut it? Short answer: no. Find out the longer answer below 🧵👇 This thread is based on our new @japplphysiol paper, where we investigated human muscle fiber type composition variability by analyzing repeated biopsies. Lots of them.

RT @japplphysiol: From @ugent @karolinskainst @uni_copenhagen @CasteeleFreek et al.: Does one biopsy cut it? Revisiting human muscle fiber…

RT @WannesSwinnen: Inter‐Individual Variability in Muscle Fiber–Type Distribution Affects Running Economy but Not Running Gait at Submaxima…

RT @AnjaBee6: 🦶🚩 Publication alert: Our new paper links talus size & shape to talocrural joint kinematics during hopping.

RT @MVFranchi: -Does one biopsy cut it? Revisiting human muscle fiber type composition variability using repeated biopsies in the vastus la…

@DebevecTadej @japplphysiol Most interventional applied studies (e.g. training study) are short-term and likely have no or a small effect on MFTC. To investigate the intervention effect properly we need to reduce the variability of the MFTC measurement, or increase sample size, and ideally both. (2/2)

@GarrettHester2 @TeamDerave @eline_lievens @ThibauxV @MobergPhD @WiApro @HorwathOscar @RuudVanThienen Thanks, Garrett! Microbiopsies cause less discomfort, but they also extract a smaller number of fibers. If you're using them, I would collect multiple biopsies and aim for at least 200 fibers per biopsy. The needles could be inserted at the same spot but oriented differently

RT @DrAndyGalpin: Glad this stuff keeps coming out. The variability in 'fiber type' from each biopsy is quite large, so results should be…

It was a pleasure working on this with @TeamDerave, @eline_lievens, @ThibauxV, our Swedish 🇸🇪 collaborators @MobergPhD, @WiApro, @HorwathOscar, and biopsy master @RuudVanThienen. Many thanks to all of you🙏