Discover and read the best of Twitter Threads about #aclr

Most recents (7)

Vertical jump testing at the time to #RTS after #ACLR.
Which tests?
How?
Which metrics?
Normative data

bjsm.bmj.com/content/early/…

Check this thread! 👇 Image
🚨 Hot off the press! 📰🔥
#ACLR #RTS
#VerticalJumpTests #RehabResearch
bit.ly/3WHWlch Image
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Read 25 tweets
Which performance metrics DON’T normalize at #RTS after #ACLR?
Spoiler: jump height and Reactive Strength Index during a single leg drop jump

What are we missing?

#OpenAccess🔓#OnlineFirst

🔗bjsm.bmj.com/content/early/…

Check this thread! 👇
Why vertical jumps?

In our previous work, we found that vertical jump performance (height) is a more representative metric for knee function than horizontal hop performance (distance) in healthy individuals.

bit.ly/3wRgDCJ
What is going on with athletes after #ACLR at the time they are cleared to #RTS? So, we studied their biomechanical status during a single leg vertical jump and the reactive phase of a single leg drop jump
Read 10 tweets
Triple hop for distance as a decision to #RTS after #ACLR.
Symmetry in distance masks asymmetry in knee function! doi.org/10.1177/036354…

@AJSM_SportsMed @RodWhiteley @Aspetar
@RoaldBahr @KorakakisV @IJonkers

#onlineFirst Check this thread! 👇
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Why triple hop?
During many sports, it is unusual for an athlete to be required to make a single movement such as an isolated jump or hop.
Triple hop provides additional information about the patient’s ability to absorb and release energy during consecutive plyometric loading. Image
Read 10 tweets
Are you using hop distance as decision to #RTS after #ACLR?

Symmetry in distance hides asymmetry in knee function!

dx.doi.org/10.1136/bjspor…

Check this! 👇
We measured athletes after #ACLR during propulsion & landing of a single leg hop for distance after they have been cleared to #RTS

During propulsion symmetry in work done by the knee is only 69% & during landing it’s 81%, despite achieving 97% of hop distance
The relatively large between-leg knee work difference is easy to miss as the knee joint contributes little (12%) to propulsion in a single hop for distance.
Read 13 tweets
Hop testing after #ACLR – horizontal (distance) is easier to measure than vertical (height) but are they the same?
(Spoiler: not even close)
Thread 👇 Image
During a vertical hop, the hip, knee, and ankle contribute almost equally, during push-off (height achieved) and landing (force absorption). Image
Horizontal hop is very different.
Work during propulsion (=distance achieved): knee contributes only 13% but the landing phase (absorption) is done 2/3 by the knee. Image
Read 5 tweets
#ACL injuries in professional football (aka Soccer for the Americans in the crowd - anyone else challenged when they hear this lol) with @MarkusWalden

My note thread to follow....

#Sportsfisio2020
@MarkusWalden "ACL injuries in men's professional football: a 15-year prospective study on time trends and return-to-play rates reveals only 65% of players still play at the top level 3 years after ACL rupture" bjsm.bmj.com/content/50/12/…

FREE to download
@MarkusWalden In their database:
- Few career-ending injuries (1.8%)
- Approx 7% retear rate w/in 1 yr post #ACLR

Are these re-injuries failures? Or a deliberate high-risk decision? Interesting question.
Read 6 tweets

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