Christopher Chapman

Sport Scientist @ Whoop. Strength Coach @ Freestyle Ski Canada (Slopestyle/Big Air). 🇨🇦. Lecturer. MSc Biomechancs. Opinions are my own.

[Christopher Chapman @ChappyStrength]

@Scott_Damman 100% Scott. Without you and DalCin I wouldn't have gone down what's been a 15-year journey into VBT. My goal was to build the product I wanted in the gym. In the end I could not fully achieve my goal due to things beyond my control. It's been a rather tough pill to swallow for me

[Christopher Chapman @ChappyStrength]

@Scott_Damman @EricRenaghan @JoeD_Strength @MuscleLabSystem This was instrumental in my progression of VBT/speed/power zones. It was the first time load-velocity-power profiling was automatically built into an end-user product, ahead of its time. We modeled PUSH Assist reco engine after this. Thankful for your influence in my early days!

[CBC Olympics @CBCOlympics]

Canada closed out the season at the top of the freestyle nations standings, winning the @FISfreestyle Nations Cup 🏆

What a season for @canfreestyleski 🇨🇦

[Christopher Chapman @ChappyStrength]

Just posted a photo @ Olympic Winter Games - Beijing 2022 https://t.co/MdfvRY9szw

[Steven Hirsch @_stevenhirsch]

Happy to have this paper published ahead of print in @JApplBiomech. Great work to the team on getting this over the line! @ChappyStrength @_Tyson_Beach

https://t.co/DQnIFASkHJ

[Steven Hirsch @_stevenhirsch]

This project started based on @ChappyStrength’s thesis work and we ran with it to explore an important methods-related question.

In summary, our data suggests normalizing:
🔵 sagittal knee NJM with mass*height or mass*leg length
🔵 frontal knee NJM with height or leg length

[Christopher Chapman @ChappyStrength]

@da_manning @trainwithPUSH Hey @da_manning, Real-time feedback is a setting in the band connection screen (band logo top right). One iPad is turned on, one is off. Likely hit by mistake since you can change on the fly for a single user in the app, but it is set for your whole team in the portal software.

[Trent Stellingwerff, PhD / CSEP-CEP / FACSM / ChPC @TStellingwerff]

So, we got Montreal Canadians crossing the border without quarantine, and having 2,500 INDOORS (https://t.co/BZIZVqD2je). Versus our Olympians racing in empty OUTDOOR stadiums. But COVID transmission is 18.7 times more likely indoors... https://t.co/FaQeRNVDZj Science what?

[Tyson Beach @_Tyson_Beach]

Making inferences about movement causes/consequences based *solely* on visual observation is questionable practice: https://t.co/Nxi46fd998

Winter's "support moment" concept even challenges notion that kinetics are inferable from kinematic *measurements*: https://t.co/3UCjZTRGPo

[Christopher Chapman @ChappyStrength]

@GregLehman @trainwithPUSH I know a guy who can roll up some CAD paperwork for you.

[Christopher Chapman @ChappyStrength]

@GregLehman @trainwithPUSH Now this might be the only Twitter debate I can get behind these days 😂. Woodbine, kew, balmy, silverbirch. All signs would point to plurality.

[Christopher Chapman @ChappyStrength]

@markhelme1 Congrats my dude!👏

[Catapult @catapultsports]

We're closing the gap between on- and off-field performance analysis by partnering with velocity-based training technology @trainwithPUSH.

PUSH works with hundreds of pro and Olympic sports teams quantifying performance in the weight room or remotely.
https://t.co/9h7JsOAKJp

[Christopher Chapman @ChappyStrength]

@McAuslanPerform @jbryanmann @jdcford There is a lot more research in visual perception of joint and body kinematics, most of the refs in those papers above will lead you down the path. Also some research in the visual perception of throwing speed in baseball/javelin.

[Christopher Chapman @ChappyStrength]

@McAuslanPerform @jbryanmann @jdcford That's why I laugh when people get so rattled about technology measurement minutia because nearly all of it far outperforms visual observation. We did some of this work at U Toronto biomech lab and it's pretty wild when you realize how much error occurs in visual interpretation.