Sprint Science

In-depth analysis on speed and human performance. Motion Analysis and sports technology consulting since 2006. Shares don’t imply endorsement.

[Sprint Science @spikesonly]

Strike Point > Step Length

A good head position helps a sprinter keep their pelvis square. Often, arching creates an optical illusion of good posture.

Fix this with a strong neck, not cueing, and you will see this trickle downstream over time. Root causes are better targets.

[Sprint Science @spikesonly]

Help us understand this @DrChrisBishop ...

[Journal of Sports Sciences @JSportsSci]

🆕 Determining jump and change of direction inter-limb asymmetries over pre-season in basketball players: An individualised approach

https://t.co/mjUbVygMGQ

[Sprint Science @spikesonly]

Reality...

[The Football Physio @TheFootballPhys]

⚽📊Physical preparation and return to sport of the football player with a tibia-fibula fracture: applying the 'control-chaos continuum'

🔗https://t.co/jSyOx6P7LE

[Coach Wayland | Performance Expert | Craftsman @WSWayland]

RDL is a favourite travel movement, it doesn’t require the same neural demands as a conventional deadlift.

Easier to recover from than heavy conventional deadlifts for many athletes, especially when travel + competition stress is high. This was me in uae 🇦🇪 working 10 days in a row.

The RDL isn’t just another posterior chain exercise it’s a movement pattern that teaches athletes how to hinge safely and powerfully under load. That pattern shows up in almost everything athletic.

https://t.co/VacPYqCedT

[Sprint Science @spikesonly]

@CoachAlanBishop A lot of dudes like the lifting, but the off-feet conditioning is something we must value. Alan, thanks for showing the oxygen side of things.

[Sprint Science @spikesonly]

@SprintsUp17478 @Track_Thad It is simple but hardly easy to do. Just showing how finite it is to get faster when someone is nearing the peak of their career. Not saying it's going to be a walk in the park!

[Sprint Science @spikesonly]

Hit 8.73 m/s of backswing velocity....if he can add 4 cm of step length and reduce 2 ms of GCT, he can be 9.7X in the 100m.

[Sam Blaskowski @samblaskowski]

9.89 🙏🏼 They call me BLAST-KOWSKI for a reason! New PB in the 100m. Breaking 10 wasn't just the goal it became an obsession. Years of sacrifice, hard work, discipline & belief all came together on the track. Thank you all for the support, just getting this career started. ♾️

[Sprint Science @spikesonly]

@DrMikemacmillan @Scott_Damman @movefactorx A high torque system can do this, motorized systems can and are doing this now. As for commercial products like Tonal, I doubt they want to spend resources on this with such a small market unless they want to grow their brand with the credibility of working with pros.

[Sprint Science @spikesonly]

@Scott_Damman @DrMikemacmillan @movefactorx That's the problem. If you don't have a turnkey solution and focus on measurement without holistic outcomes, it's the same as building without a true purpose, which leads to feature creep and other misdirected tools.

[Sprint Science @spikesonly]

@Scott_Damman @DrMikemacmillan @movefactorx @tonal Tonal already offers an eccentric component; the question is supramaximal eccentric, and that is not happening soon. While companies may have it available, this isn't going to be done with more than 2-3% of the time.

[Sprint Science @spikesonly]

@Scott_Damman @DrMikemacmillan @movefactorx How can it be wider? More accessible doesn't mean appropriate. For example, take a soccer program, which is doing supramaximal work during the year? What teams can do this? AEL has value, but it's extremely rare to have access to an athlete in an environment that makes sense.

[Sprint Science @spikesonly]

@DrMikemacmillan @Scott_Damman @movefactorx Weight releasers provide the accentuated load on the eccentric portion of the lift.

[Kevin Cronin @Cronin90Kevin]

🔥 New Publication🔥

Delighted to share our recent research on hamstring T-junction injuries in professional football players ⚽️

The key finding from this study:

👉 Recent history of T-junction hamstring injury impairs Biceps Femoris long head muscle thickness.

[coach mdd @Coachmdd]

@jb_morin This is really great work.

But it is missing the same important detail as seen in preceding work. It is not truly “Curve running” analysis. Like others it’s correct title is that it’s a Radial running analysis.

All radials are curves.
Most curved running is not radial.

[Sprint Science @spikesonly]

Notice the @UnderArmour IMU on the chest of the athlete. It's nice to get such information; the law of diminishing returns rings true with added data that may not move the needle. Measurement is important, but having an undeniable argument of how it drives change is vital.

[Scott Damman @Scott_Damman]

11 years and holding @TeamEXOS

Broad Jump evaluates explosive power involving vertical & horizontal performance

Measured by distance

RAW power test, why it exists

It's blind spot?

Technical excellence and body proportions influence the distance result...

over RAW power?

[Sprint Science @spikesonly]

@lqstrengthcoach True. Sometimes, though, good companies don't make it or grow fast enough, and we stay in a dark age. Very little progress has been made over the last few years.

[Sprint Science @spikesonly]

A lot of sports technology companies have joined the graveyard of failed businesses due to "founder's syndrome" and blame the customer for their current state.

Companies that are on life support lean into marketing and sales simply because the product doesn't deliver.

[Tucker Seay @coachseay_cscs]

Love seeing more NFL teams posting their training.

Love seeing the snatch too.

@CoachRGarner and I have been about them!

[Sprint Science @spikesonly]

@Coachmdd @Scott_Damman True. The key, though, is what is being measured and how we use it day to day. Instruction is very kinematic with an understanding of kinetics. Motion is 3D, so we need 3D biofeedback.

[Sprint Science @spikesonly]

@Coachmdd @Scott_Damman Back to bar and body, IMU's provide the opportunity to trace the mounted item. Without tracing, we are missing vital data that allows better motion reporting. Without 3D data, the story is incomplete. It's fine to get velocity or accelerometer data that is not 3D.

[Sprint Science @spikesonly]

@Scott_Damman What are your 3D metrics again?