In this video I talk about the pitfalls of being a quad dominant jumper. This means that the jumper wants to load disproportionally thought their front thighs when jumping. This can make for slower ground contacts and reactive forces and reduce the contribution the hips and the ankle joints make to sprinting and jumping, for example.
Now, it does not mean that the quad dominant jumper will be a poor jumper, in fact they may well be very good jumpers and in particular triple jumpers (from my experience). However, as indicated they may lack sprinting speed due to not having a quick-fire ground contact. Their coupling between the eccentric muscle stretch and the concentric muscle shortening plyometric actions may be longer. So, they need a little more time to express force.
I have also found that these types of jumpers are less able to rotate their legs quickly and they may also sit when they are running.
This is because they firstly, often have underdeveloped hip flexors and secondly, they are not running tall by extending through the ankle and hip. For them the knee is dominant in triple extension.
In the video I make comments about the hip muscles being crucial to sprinting (I tend to do this in many of my videos!). Everything being equal the hip muscles are the key sprinting and jumping muscles as they rotate the legs. Think of the hips as the pivot around which the legs spin - if there is insufficient power there to rotate the legs then sprint speed, for example, will be compromised. The quad dominant jumper is often underdeveloped specifically in the hips - for sprint speed.
In the video you will see examples of quad dominant jumpers and some suggestions as to what to do to try to get the ankles and the hips contributing more to jumping and sprinting.
If you have any specific questions on the specific content of this video or indeed any of my others then please leave them in the section below of through my other social media.
#quaddominace #longjump #track
JOIN THE JUMPS SQUAD BECOME A CHANNEL MEMBER
GET EXCLUSIVE CONTENT!!!
/ @johnshepherdtrackcoach
SPRING SHOP (FOR JUMPS SQUAD MERCH) / @johnshepherdtrackcoach
FREELAP TIMING SYSTEM
If you are interested in finding more about this highly portable and accurate to 2/1000th sec timing system including prices, then please contact me @ johnshepherdfitness@gmail.com
SEE ALSO • Freelap Timing System:... for a short video on the system.
SAVE ON THERAGUN SHIPPING - ALL DEVICES
theragun.xibx.net/c/2386212/6...
SPECIFIC PRODUCT DETAILS
THERAGIN MINI theragun.xibx.net/c/2386212/8...
THERAGUN ELITE: theragun.xibx.net/c/2386212/8...
-------------------------------
THE JUMPER
Digital jumps and sprints magazine. Checkout articles, videos and other interactive content which will help you improve as both athlete and coach.
LINK to issue 2 and 3
pub.lucidpress.com/The_Jumper...
pub.lucidpress.com/THE_JUMPER...
-------------------------------
NUROKOR BIOELECTRICITY machine discount
Aids recovery and boost performance
Nurokor Mi TOUCH
Coach Shepherd is able to offer a 10% DISCOUNT on the NuorKor MiTouch - use this link to access it 🇬🇧 U.K
nurokor.co.uk/?ref=JumpsCoach10
And if you are in the US 🇺🇸
nurokor-usa.com/discount/JUMP...
John Shepherd is an ex Team GB long jumper and now coach to top athletes of all ages... from English Schools Champions, to European junior Champions to senior internationals. He's coached for the England team
13 окт 2022
