Jason Avedesian, PhD @JasonAvedesian Twitter profile

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Jason Avedesian, PhD

@JasonAvedesian

2 years

When an athlete hits the ground, current data tells us the ACL will tear within the first 60 milliseconds. That’s why I’ve completely reframed my thinking of ACL injury as a sensorimotor integration issue, not a strength/biomechanical issue. 🧵

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Jason Avedesian, PhD

@JasonAvedesian

2 years

ACL injury = disruption in the nervous system Here's a really good read on how to challenge the nervous system during ACL rehabilitation

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Jason Avedesian, PhD

@JasonAvedesian

2 years

4 recent ACL papers all coming to a very similar conclusion. Measures of dynamic knee valgus during common jump-landing assessments are poor indicators for future ACL injury.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Reminder… It takes approximately 3 hours/week of consistent weight room training to reduce the risk of ACL injury by 50-60% in the youth female athlete

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Jason Avedesian, PhD

@JasonAvedesian

1 year

Is ACL injury really a biomechanics issue? Or perhaps "risky biomechanics" are really a downstream product of neurocognitive errors🤔 Note all 4 papers are from the past 3 years. Beginning to see a much needed paradigm shift in ACL injury risk...

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Jason Avedesian, PhD

@JasonAvedesian

1 year

Neuromuscular training programs reduce the risk of non-contact ACL injury by 64% in youth female athletes. Main components: - Strength and plyometric training - 2-3x per week - Training completed at pre-season AND in-season

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Jason Avedesian, PhD

@JasonAvedesian

2 years

ACL injury risk reduction.. 🚫 Monster walks and hopping off boxes ✅ Heavy single-leg training and exposure to intense decelerations under conditions which stress visual attention, decision-making, and working memory Spot the differences?

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Failure to provide female athletes with appropriate and consistent training opportunities is the biggest risk factor for ACL injury.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Further evidence supporting visual performance to be a risk factor for ACL injury. Low visual fusion range (the ability to merge images from each eye into a single image) was the strongest internal ACL risk factor. Non-contact ACL injuries = sensorimotor integration deficits.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Recent evidence indicates the primary biomechanical mechanism of non-contact ACL injury is axial compression (provokes tibial translation) Knee valgus may be a secondary MOI, perhaps even occurring AFTER the ACL has already ruptured. Major implications for risk reduction…🤔

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Jason Avedesian, PhD

@JasonAvedesian

1 year

Early aerobic activity post-concussion continues to be the strongest intervention for enhancing recovery trajectories in athletes, even when compared to usual care. Figure from Hutchison (2022)

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Watch enough video & you’ll come across a common theme in non-contact ACL injuries… Athletes are visually distracted. Their attentional focus is on the stimulus in front / to the side of them (eg, opponent). ACL injury = sensorimotor integration issue

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Jason Avedesian, PhD

@JasonAvedesian

2 years

The best summary for this paper is likely... "A comprehensive warm-up performed multiple times per week is associated with a 60% reduction in ACL injury risk in adolescents" Comprehensive = increase tissue temp + dynamic stretching + plyometrics + jump-landings / decelerations

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Jason Avedesian, PhD

@JasonAvedesian

2 years

This 2005 paper is perhaps the most cited ACL injury prediction research to date. I figured it was past time to perform a deep analysis on this paper, especially given the information we’ve learned over the past 17 years. Let’s kick this off… 🧵

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Highly recommended read for practitioners working with athletes during ACL injury return-to-performance. Really enjoyed how the authors considered multiple areas: - Energy system reacquisition - Objective load monitoring - Sensorimotor/perceptual challenges - Athlete-feedback

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Jason Avedesian, PhD

@JasonAvedesian

2 years

What is decision-making in team sports? This article does a fantastic job overviewing a few different perspectives of decision-making. A heavy read, but worth it for those interested in sensorimotor performance. Everything comes back to manipulating time & space!

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Jason Avedesian, PhD

@JasonAvedesian

7 months

Any "ACL screening" test must incorporate a neurocognitive component to have any sort of utility. Otherwise, it's a large waste of time and resources. Non-contact ACL injuries occur because of time and space constraints...

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Jason Avedesian, PhD

@JasonAvedesian

2 years

This 2016 paper has been a major influence on our Olympic sports science team. If you want to get your athletes faster I would highly recommend giving this one multiple reads!!

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Jason Avedesian, PhD

@JasonAvedesian

2 years

I found this passage about the ACL to be very interesting (Duthon, 2006). An ACL tears 40-60 ms after landing / cutting, way before an athlete consciously processes what occurred. Those "bad biomechanics" you see = an athlete not having enough time & space. 🧵incoming...

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Jason Avedesian, PhD

@JasonAvedesian

2 years

20 year trends in ACL injury rates suggest continued exponential growth (Maniar, 2022). Perhaps time to move away from laboratory-based research and allow clinicians / practitioners to lead ecologically valid investigations?

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Jason Avedesian, PhD

@JasonAvedesian

9 months

An updated list of the macro-level risk factors believed to be associated with ACL injury. There are 34 listed here. Highly likely this list is missing some with further research. This should give you an idea of the true complexity of ACL injury...

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Jason Avedesian, PhD

@JasonAvedesian

2 years

I was told a symbiotic relationship between academics & athletics was a pipe dream at the D1 university level. “Too many silos” Well, at the month 1 checkpoint we’re now providing a platform for our STEM students to engage in sports science initiatives. Stay tuned… 🐅

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Jason Avedesian, PhD

@JasonAvedesian

2 years

How do ACL injuries occur? To develop effective risk reduction strategies, we need to reverse engineer ACL injury. Common ACL injury components include... - Primarily non-contact - Single-leg deceleration - 40 - 80 milliseconds after ground contact - Unanticipated conditions

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Jason Avedesian, PhD

@JasonAvedesian

2 years

To my knowledge, there are 24 papers that have examined the relationship between concussion and subsequent lower extremity injury. 96% of those papers have demonstrated a greater risk for lower extremity injury post-concussion. This is across a wide variety of populations.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

When researching a new topic, I always start with a literature summary table. Best thing I ever did in grad school. Super simple and effective way to accumulate relevant literature. Also makes writing literature reviews and manuscripts super easy. Highly recommend!

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Jason Avedesian, PhD

@JasonAvedesian

1 year

Interesting findings here... Athlete attention was on the ball or the opponent in nearly 75% of these second ACL injury events. Movement screenings without cognitive load or external attentional focus have little utility for determining ACL injury risk.

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Jason Avedesian, PhD

@JasonAvedesian

1 year

A few ACL nuggets… - Injury occurrence is estimated at ~60ms after ground contact, likely before valgus - Approx. 50% of non-contact ACLs don’t present knee valgus - Overwhelming majority of prospective studies have not found knee biomechanics predictive of future ACL injury

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Jason Avedesian, PhD

@JasonAvedesian

2 years

An extended knee / flat foot landing posture presents a high ACL injury risk scenario for a few reasons. 1) Minimal force attenuation by the calf & quad musculature (dorsiflexed ankle / flexed knee increases loading time) 2) Rapid anterior tibial translation = rapid ACL loading

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Updated graphic (Oct '22) on the relationship between sports-related concussion and lower extremity injury. 90% of published studies have indicated a greater risk for LE injury after SRC.

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Jason Avedesian, PhD

@JasonAvedesian

10 months

Millions of research dollars have been spent targeting ACL injury reduction over the last 15 years. Data from Koy (2023) indicate ACL injury incidence has increased over this time period.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

ACL injury is a sensorimotor integration error. Most common non-contact ACL injury scenario you see? The athlete’s attentional focus is fixated toward external environmental stressors. The error comes in judging when and how much muscular force is required to decelerate.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

The bilateral drop vertical jump test has dominated the ACL injury risk screening literature for 20 years. And yet, most data indicates this test is not associated with ACL injury. Here’s a few of my thoughts as to why that is, as well as opportunities to advance ACL screening.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

93% of published studies have demonstrated an increased risk for lower extremity injury post-concussion in athletes and military populations. Practitioners should consider monitoring sensorimotor and psychological behavior beyond return-to-performance after concussion.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

The more I read/study about ACL injury, the more I question my own knowledge about it. Once you depart from thinking of ACL injury as a pure biomechanical injury, you gain a true appreciation for its unbelievable complexity.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Primary mechanisms of ACL injury - 70-80% non-contact/indirect contact - Single-leg deceleration across multiple movement planes (eg, jump-cut) - Divided attention/external focus (eg, fixation on defender) - Flat foot/extended knee position, valgus present in ~50% of cases

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Jason Avedesian, PhD

@JasonAvedesian

2 years

To be successful in sports science you must understand that relationships matter more than data

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Jason Avedesian, PhD

@JasonAvedesian

2 years

New ACL paper... very interesting findings 👀 - Differences in knee valgus between injured & non-injured athletes detected 67 msec after ground contact, beyond estimated time injury occurs (17-50 msec) - Knee valgus occurred in ~50% of injured athletes

Mechanism of non-contact ACL injury: OREF Clinical Research Award 2021 - PubMed

Anterior cruciate ligament (ACL) ruptures significantly impact athletes in terms of return to play and loss of long-term quality of life. Before the onset of this study, understanding the mechanism...

pubmed.ncbi.nlm.nih.gov

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Jason Avedesian, PhD

@JasonAvedesian

2 years

New paper alert! 🚨 Sneak peek into recent data indicating visual-spatial attention identifies lower extremity injury risk in 400+ adolescent athletes. Every 10ms ⬆️ in reaction time = 15% ⬆️ risk for injury. These findings were independent of any biomechanical testing 🤔👀🧠

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Full look into the very first Clemson Olympic Sports Science intern curriculum! Mentorship is a big rock for our sports science program. Very 🔥'd up for this semester!! 🐅

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Jason Avedesian, PhD

@JasonAvedesian

7 months

Sports science can be generally thought of in two ways: 1) Research sports science 2) Applied sports science Having been on both sides, here are the differences between the two…

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Consider a few findings about the ACL... 1) Non-contact ACL injury occurs approx. 40-60ms after ground contact 2) Neuromuscular "ACL reflex" occurs approx. 110ms after ACL loading ACL injury is a sensorimotor integration issue. Must consider the neurocognitive aspects🧠

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Jason Avedesian, PhD

@JasonAvedesian

1 year

Thoroughly enjoyed this article about incorporating cognitive load into ACL return-to-sport testing. A largely untapped area that has tons of potential to better gauge athlete readiness throughout the rehab process. Train the brain! 🧠

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Important point for the next wave of sports scientists… While GPS and other load monitoring devices provide valuable insights, the richest data comes from you actually attending training and competitions.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Important paper when considering ACL injury risk profiling and return-to-performance. 1) Reaction time, anticipation, and decision making heavily influence lower extremity biomechanics 2) Isolated movement tasks largely fail to elicit biomechanical deficiencies 🧠

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Creating research summary tables were the best thing I did during graduate school. Super effective way to stay organized and actually recall the most important aspects of the literature. Highly recommend for sports scientists.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Force-velocity and load-velocity sprint profiling are major points of emphasis for our Olympic sports science and S&C teams. Pairing with high-speed video provides even greater insight. Shoutout to @BVNiznansky for the awesome work on this! 🏃‍♂️🏃‍♀️💨

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Jason Avedesian, PhD

@JasonAvedesian

2 years

The first iteration of the Clemson Olympic Sports Science playbook is complete!!! 200 pages of technology and sports science goodies for our interns and staff. I anticipate this playbook will grow and evolve with our program.🐾

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Findings from 7 different recent studies have come to a similar conclusion... Knee biomechanical measures during laboratory-based jump-landing tasks have poor association with future ACL injury risk.

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Jason Avedesian, PhD

@JasonAvedesian

1 year

Seeing more evidence for single-leg RSI measures being great indicators of neuromuscular readiness post-ACL injury. This recent study demonstrates RSI to be sensitive to residual deficits even though all athletes cleared LSI hop and gross strength tests.

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Jason Avedesian, PhD

@JasonAvedesian

1 year

6 years of grad school + post-doc, pinching pennies and living on Papa John’s pizza. 🏡

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Jason Avedesian, PhD

@JasonAvedesian

6 months

The CMJ is one of the most common assessments in sports science. Based off McHugh (2020), I'm starting to examine movement efficiency during the CMJ (done easily with @HawkinDynamics ). Example of a biomechanically efficient (left) and inefficient (right) CMJ.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Data on approx. 600 patients indicate anterior tibial translation is the primary biomechanical mechanism for ACL injury. Max knee valgus likely occurs after the ACL tear. These findings should make you re-consider your risk reduction strategies...🤔

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Updated infographic on the current state of ACL injury. There are quite a few opportunities to improve risk identification and injury management.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Each week I'll share a few slides / discussion points from our Clemson Olympic Sports Science internship program. Week 1: What is sports science? Why are sports scientists needed?

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Jason Avedesian, PhD

@JasonAvedesian

1 year

“Researchers are exploring how the brain helps prevent knee injuries” 🧠 Very interesting article. Definitely has my stamp of approval 😉

Researchers are exploring how the brain helps prevent knee injuries

During a competitive game, the brain might not be able to correct a faulty knee or ankle position in the milliseconds it takes to tear a ligament.

www.washingtonpost.com

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Jason Avedesian, PhD

@JasonAvedesian

8 months

There’s really not too many secrets in sports science. Everyone is jumping on a force plate, collecting GPS data, etc. It comes down to who can best contextualize the data and better inform the decision-making process. This where sports science groups separate themselves.

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Jason Avedesian, PhD

@JasonAvedesian

6 months

It's likely you're looking at too many GPS metrics to quantify external demands. 96% of the variance in Total Player Load is explained by total distance! Data from ~1700 data points in WSOC.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Updated collection of research on the relationship between concussion and lower extremity injury. 96% of studies have demonstrated an increased risk for lower extremity injury post-concussion. This relationship is often demonstrated well beyond clinical clearance.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

There appears to be a relationship between visuomotor reaction time and non-contact lower extremity injury. Below is a brief infographic on the topic. Targeted visuomotor training may have substantial effects in athletes 👀 🧠

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Jason Avedesian, PhD

@JasonAvedesian

10 months

The Fall 2023 Clemson Olympic Sports Science playbook is here! 🐾🐅 418 pages (!) of sports science information and resources for our staff and students, including... - Technology overviews - Data dictionary - Intern curriculum - Research articles ...and much more

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Jason Avedesian, PhD

@JasonAvedesian

2 years

A lot of previous research attempts to "predict" ACL injury based upon an isolated risk factor. The issue? It's much more complex than any single factor. Here's 34 different variables I've come across that have demonstrated an association to ACL injury. Likely, there are more.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Very interesting findings in a fairly large athlete cohort at post-ACL injury. - Passing thresholds of self-reported symptoms / knee function and psychological readiness = 3-4x more likely to return-to-sport - Hop and strength tests = no association to return-to-sport

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Jason Avedesian, PhD

@JasonAvedesian

10 months

If often concluded that “bad biomechanics” = ACL injury risk Example: peak ACL strain occurs within the first 30 degrees of knee flexion, so athletes have to avoid “stiff landings” But we have to consider the unanticipatory nature of which ACL injuries occur… 🧵

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Jason Avedesian, PhD

@JasonAvedesian

10 months

ACL injury ✅ More emphasis on… - Reverse engineering sport demands - Athlete-specific needs analysis - Sensorimotor training - Deceleration ❌ Less emphasis on… - “Perfect” biomechanics - Generic strength modalities - Isolating risk factors

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Jason Avedesian, PhD

@JasonAvedesian

8 months

Awesome paper on early-stage rehab considerations post-ACLR. One of the better 2023 ACL reads for me so far...

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Jason Avedesian, PhD

@JasonAvedesian

2 years

GPS data provides an accurate representation of sport- and position-specific demands (velocity, acceleration, mileage). It's a valuable tool for progressing an athlete through various stages of return-to-performance. @BVNiznansky has done a great job visualizing our GPS KPIs!

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Jason Avedesian, PhD

@JasonAvedesian

9 months

How does a sports scientist function within a collegiate setting? Here’s a real-time look into a typical day. 6:15am… - Breakfast - Daily 2min HRV/subjective wellness measures and planned training load - Checking all comms (email, slack, AMS, DevOps)

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Jason Avedesian, PhD

@JasonAvedesian

2 years

A little sneak peak of our very first Clemson Sports Science curriculum!!! More to come...🐅👀 #sportsscience

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Jason Avedesian, PhD

@JasonAvedesian

2 years

The drop-vertical jump (DVJ) is arguably the most researched assessment for ACL injury risk. Brand new paper demonstrating knee kinematics and kinetics are influenced by a secondary cognitive task during the DVJ! Think about the 🧠...

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Jason Avedesian, PhD

@JasonAvedesian

2 years

FWIW, this is all coming from someone trained in mechanical engineering with a masters and PhD in lower extremity biomechanics. And I don’t believe ACL injury is a primary biomechanics issue. 🎤

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Jason Avedesian, PhD

@JasonAvedesian

1 year

While velocity and acceleration are valuable attributes in any field-based sport, I’d argue that deceleration is more important. Elite deceleration ability is a performance enhancer and injury risk mitigator. Some of the most elite-level athletes are elite-level decelerators.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Over the last few weeks I’ve seen more and more collegiate-level sports science positions become available. The question becomes… “What does a collegiate sports scientist do?” Here’s a little deeper insight into this new and exciting position 🧵

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Jason Avedesian, PhD

@JasonAvedesian

1 year

Neurocognitive components relevant to performance and injury risk include... - Visual attention - Impulse control - Self-monitoring - Processing speed - Working memory - Dual-tasking

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Jason Avedesian, PhD

@JasonAvedesian

5 months

As a sports scientist you'll likely read quite a bit of research. I highly recommend creating personalized literature summary tables for each article you read. This saved me tons of time throughout grad school and allowed me to aggregate similar research in a single location.

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Jason Avedesian, PhD

@JasonAvedesian

10 months

ACL injury risk + motor learning 🧠 Although the sample size was small, preliminary results indicate traditional linear learning methods (practice to achieve the "ideal" movement) was the least effective. Manipulating task constraints can enhance athlete robustness.

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Jason Avedesian, PhD

@JasonAvedesian

1 year

FYI: There isn’t strong evidence to suggest female athletes are at greater risk for ACL injury due to anatomical and/or hormonal factors compared to males. Those are cop out rationalizations not addressing the real issue in exposure to similar long-term training opportunities.

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Jason Avedesian, PhD

@JasonAvedesian

1 year

Interesting study examining how indirect contact influence ACL loading. Upper body contact was the most influential to ACL biomechanics. Individuals landed 30-40 ms earlier on the contralateral limb after upper body contact, the initial time we think ACL injury actually occurs.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

When examining biomechanical parameters related to non-contact ACL injury, it's likely best to start at the trunk/hip. Excessive posterior and lateral shifts of the trunk/hip can heavily influence knee joint loading. Brilliant figures from Sipprell (2012) and Powers (2010).

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Jason Avedesian, PhD

@JasonAvedesian

10 months

There is no strong evidence that dynamic knee valgus is predictive of future ACL injury. Consider - approx. 50% of injured athletes do not demonstrate valgus during the first 60 ms of ground contact, the time in which we believe ACL injury occurs (Boden, 2021).

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Neuropsychological readiness post-ACL injury should be a major component of return-to-performance. - Fear of re-injury - Anxiety - Rumination Often these measures outperform objective tests (eg, hop distance) in terms of having a greater association with subsequent injury.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Question I ask during every interview… “How would you describe the role of a sports scientist?” Answer I got this morning… “A liaison to all staffs to help make the pieces fit together and tell the right story” Best response I’ve gotten from a student!!

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Jason Avedesian, PhD

@JasonAvedesian

8 months

Want to be a better ACL injury practitioner? Put down the same old drop-landing biomechanics paper that’s been published thousands of times. Pick up some neuroscience research and learn more about the underlying sensorimotor processes that facilitate human movement.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

🚨 Brand new paper 🚨 More evidence to suggest that sensorimotor performance (particularly visual-spatial attention) is associated with non-contact lower extremity injury in football and soccer athletes.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Ask your athletes to perform cuts under anticipated & unanticipated conditions. Film it. You’ll likely see biomechanical changes at the trunk & knee. What happened? Did the hamstring & glute med suddenly become weaker? No - you’ve just introduced the 🧠 into the equation.

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Jason Avedesian, PhD

@JasonAvedesian

1 year

In non-sports science news… I just purchased my first home!!! LFG!!! 🏡 🐾 🐅

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Athletes post-ACL injury are up to a 15x greater risk for re-injury (Paterno, 2012). During return-to-performance, it’s important to consider the psychological & sensorimotor aspects of ACL injury. Consider - Anxiety/confidence - Attentional focus - Environment (drill design)

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Jason Avedesian, PhD

@JasonAvedesian

1 year

The secret of sports science is that it’s actually not driven by the field itself. Sports science is driven by intuitive practitioners (S&C, sports med, nutrition, coaches) with questions and observations that are then answered by sports science.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

This week our sports science team is examining GPS! GPS is a powerful tool for many purposes - training & game model description - worst-case scenarios - return-to-performance - benchmarking Below is a must read paper for practitioners and researchers utilizing GPS 📡🏃‍♀️

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Millions of dollars have poured into ACL research, grants, and technology over the last 25 years. Yet, ACL injury rates continue to climb. This is demonstrated across all sporting populations, but particularly in adolescents.

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Jason Avedesian, PhD

@JasonAvedesian

8 months

ACL injury risk mitigation… ❌ “Perfect” biomechanics (doesn’t exist btw) ✅ Training environments that progressively expose athletes to variable loads and external stressors

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Jason Avedesian, PhD

@JasonAvedesian

10 months

The CMJ is likely the most frequent assessment in sports science. - Preparedness - Fatigue profiling - Return-to-performance We examined every CMJ in our 6 year @HawkinDynamics database to explore team normative values across a variety of metrics!

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Read a lot of research in 2021 attempting to better understand my three main areas of interest (sensorimotor performance, ACL injury, and concussion). A little 🧵 on some of my favorite reads on the year...

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Jason Avedesian, PhD

@JasonAvedesian

1 year

Sports science is a unique field that can be pursued by those with a diverse range of backgrounds and skill sets. Below is a list of disciplines that may fall under the umbrella of sports science.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

My own research (along with others’ awesome work) suggests vision, attention, anticipation, pattern recognition, & overall perception directly influence movement related to ACL injury. The reason biomechanical studies fail to “predict” ACL injury? The above isn’t accounted for.

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Jason Avedesian, PhD

@JasonAvedesian

1 year

Vision is a hot topic in high-performance. Here are a few reads I've found particulary enlightening. Elite-athletes certainly demonstrate outlier visual abilities. The question becomes... how trainable are these qualities in the context of the sport environment?

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Jason Avedesian, PhD

@JasonAvedesian

11 months

Getting youth and adolescent athletes frequent exposure to strength training is the most beneficial thing that can be accomplished to reduce ACL injury risk. We have 20 years of data to support this. Everything else is secondary during those crucial developmental years.

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Jason Avedesian, PhD

@JasonAvedesian

10 months

If you're in the business of collecting sports science and performance data, I'd recommend a data dictionary. Helpful for onboarding /educating staff and students. Our data dictionary describes macro-level metrics commonly communicated with each Olympic sports team.

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Jason Avedesian, PhD

@JasonAvedesian

2 years

Beginning to wonder if many non-contact ACLs stem from an athlete not being able to properly initiate a horizontal deceleration… 🤔 Visual stimulus overload (perception-action mismatch) 👀 ⬇️ Delayed limb stiffness 🦵 ⬇️ Rapid ligament loading 🩼

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Jason Avedesian, PhD

@JasonAvedesian

2 years

A real-world sports science feedback loop 📡 Data collection - Daily readiness - GPS - CMJ, RSI 📈 Data analysis - Positional work rates - Longitudinal trends - Historic benchmarks 🗣 Data dissemination - Informed decision-making - Load/training adjustments ✅ Implementation

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Jason Avedesian, PhD

@JasonAvedesian

1 year

This article was a culmination of about 6 years of intense ACL research. Greater understanding of how neurocognition & sensorimotor performance affects non-contact ACL injury will be the biggest leap forward of the past 25 years of ACL work.

SimpliFaster

@SimpliFaster

1 year

My current research has led me to believe that perhaps we are somewhat ignoring another important contributor to ACL injury—the brain, says @JasonAvedesian . via @SimpliFaster

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