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Fran Silver Profile
Fran Silver

@MrFranSilver

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Sports scientist / S&C coach - Keen to continue learning.

St Albans
Joined August 2010
Don't wanna be here? Send us removal request.
@MrFranSilver
Fran Silver
7 months
The growth in women’s football is amazing. When I started I never would’ve thought I’d witness such a scene. Kudos to the players, supporters and staff who’ve made it all possible.
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@MrFranSilver
Fran Silver
2 years
A ‘useful’ guide for linear running distances (from 5 m to 125 m give or take 1-2 m) on a standard (105 x 68 m) football pitch. Or just keep it simple and use a trundle-wheel 😐
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@MrFranSilver
Fran Silver
4 years
I'm really keen to learn more about isometrics & use them in my programming more often. I've tried to summarise my recent reading in this table - you may find it helpful or you may want to critique🤷🏼‍♂️‍ Lots of influence from @alex_natera here, especially in categorising iso types
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@MrFranSilver
Fran Silver
3 years
I spent a good while looking at the data presented in the UEFA Women's Champions League Physical Analysis Report. Here are some thoughts I had. Some are perhaps obvious, but I feel all are worth sharing…
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@MrFranSilver
Fran Silver
1 year
This was a season of incredible highs and lows. It ends having made some fantastic memories and experienced some brilliant learning opportunities! Now time for a bit of rest before nailing a Summer of important rehab!
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@MrFranSilver
Fran Silver
4 years
Planning intervals using MAS and/or MAXV. Some rough guidelines and things to consider. Different athletic profiles may require different strategies (as the two graphics show). Do you plan from MAXV down, or from MAS up? Loads to discuss and critique here!
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@MrFranSilver
Fran Silver
4 years
Nothing new or novel here but thought I’d share. Here’s my visual of a matrix by which we can classify plyometric/ballistic exercises. It should be noted that position in the matrix isn’t static based on the various variables you can play with (eg. Loading)
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@MrFranSilver
Fran Silver
4 years
Another visual that helps clarify my thinking. When planning pitch-based rehab, what are the considerations for individual elements & potential paths of progression It's not exhaustive, nor is the order presented static - different injuries/athletes may have different priorities
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@MrFranSilver
Fran Silver
4 years
Peak forces for different muscles during running and the ramifications for rehab program design. Some factors that would be affected: Timeline for return to running Drill design Strength markers in gym Key exercises in gym Data from this paper:
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@MrFranSilver
Fran Silver
3 years
3 things GPS data in ⚽️ does/doesn’t tell you: DOES The total distance run The total distance above various speed-based intensities How tactics used (for & against) can affect output DOESN’T How effective a player was How hard they found it How much effort they put in
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@MrFranSilver
Fran Silver
2 years
This is a great read on curved running by @AlbertoFilter on @SportsmithHQ Given it's usefulness in⚽conditioning, it's worth knowing the lengths of curves on⚽pitches. The D is 17 m. The centre circle is 62.8 m (half of it is 31.4 m) cont...
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@MrFranSilver
Fran Silver
4 years
A useful guide (note: durations can be affected by A LOT!) for planning return to play/train programs. How long will healing take and what qualities will be lost (or can be maintained) in this time? Some thoughts...
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@MrFranSilver
Fran Silver
4 years
If you're lucky enough to have access to a pool during rehab, this may be useful. Water offloads bodyweight - the depth affects the amount that is offloaded. Body comp & activity used in the pool also affect forces experienced by the athlete, so these numbers are a guide only.
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@MrFranSilver
Fran Silver
4 years
Plotting reactive strength (index or ratio) as its component measures makes planning an intervention a little easier to visualise/rationalise. Interested to know others' thoughts. I also found this paper really interesting: @RobinHealy
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@MrFranSilver
Fran Silver
1 year
As a practitioner in team sports, converting athletics world records into average m/s really puts the speeds into perspective: 400 m 9.3 m/s for 43 secs 😮 800 m 7.9 m/s for 100 secs 😮 1500 m 7.3 m/s for 206 secs 😮 10000 m 6.4 m/s for 26 mins! Marathon 5.8 m/s for 2 hours!!
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@MrFranSilver
Fran Silver
4 years
Visualising internal v external training load with 'The 4Fs quadrant' Plotting players' distance output Zscore against their RPE Zscore gives a snapshot of a specific training session. An anomalous score can be a good conversation starter or a reason to investigate data further
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@MrFranSilver
Fran Silver
7 months
🏆 🏆 🏆
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@MrFranSilver
Fran Silver
4 years
If Nordics are assumed to mitigate hamstring injury risk via architectural changes in fascicle length, can the same be assumed for supramaximal eccentric protocols for other muscle groups (eg quads/calves)? Increase fascicle length, improve force prod capacity, reduce inj risk?
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@MrFranSilver
Fran Silver
4 years
During RTT/RTP some systems will need OFFLOADING. This can be done in a way that PRESERVES other systems via intelligent manipulation of gym/pitch-based variables. Different injury/athlete profiles would require different combos of manipulation. Here are some potential options.
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@MrFranSilver
Fran Silver
2 years
What is sports science to you? To me, it’s not just trying to work out the answers to performance-related questions, it’s also trying to work out what the best questions to ask are. So deep.
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@MrFranSilver
Fran Silver
4 years
There are many ways to measure training load and the response to that load (I have likely missed lots here!). I would suggest that a combo of internal, external, subjective and objective measures of both load and response would give you broad insight into your athletes' status.
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@MrFranSilver
Fran Silver
2 years
3 assumptions from team sports: 1. Comp may not expose all athletes to max sprinting 2. A max SPR has the potential to require a max decel 3. Max DEC may also be lacking in comp for some Therefore, max efforts SPR/DEC may be needed in training Cont…
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@MrFranSilver
Fran Silver
6 years
Pre-season #conditioning in 3 easy steps (🏎 car analogy) ▪️build an engine ▪️fiddle with the gear box to enhance top end power and low end economy ▪️adjust steering, suspension and brakes to suit the circuit Then hope the driver has some skills
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@MrFranSilver
Fran Silver
4 years
2 very useful papers for practitioners working with female athletes, analysing PERFORMANCE and PERCEPTION relating to the menstrual cycle: PERFORMANCE: PERCEPTION: Hard to draw exact conclusions, but nonetheless lots to learn...
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@MrFranSilver
Fran Silver
3 years
Teams cover more distance when out of possession (page 24, table 2.1) So, keep the ball and make the other team work harder!
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@MrFranSilver
Fran Silver
3 years
There plenty of other great take-home messages so I recommend to anyone interested to read the full report. . Thanks to the authors for putting such a comprehensive piece together @DawnScott06 @JoClubbSportSci @Shaun_McLaren1 @mdportas
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@MrFranSilver
Fran Silver
2 years
Just finished reading Force by @dr_jump_uk . Highly recommended! Although it's a text book, it tells a story using a clever narrative; guiding you through complex, often misunderstood topics in an easy-to-read+digest way. Anyway, I'm not on Amazon, so here are my main takeaways:
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@MrFranSilver
Fran Silver
4 years
If you work with female athletes I assume this will be a useful resource.
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@MrFranSilver
Fran Silver
4 years
Quick and easy way to visualise single leg testing data. Set your zones wherever you feel is appropriate for the test and population (this example could be Nordic hamstring curl on the NordBoard). Athletes intuitively know they need to aim for the green zone.
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@MrFranSilver
Fran Silver
3 years
Transitions drive a higher proportion of higher-speed running when compared to organised tactical states (page 35, figure 2.8) So, be aware of the physical cost of transitional football and ensure players’ speed preparation has this context
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@MrFranSilver
Fran Silver
2 years
Highlighting the need for consistent data sets in sports science….a quick post...
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@MrFranSilver
Fran Silver
3 years
Half of all low-speed (< 7 km/hr) distance happens when the ball is out of play (page 26, figure 2.8) So, more ‘football context’ is required when drills drive higher speed demands. This has big implications for how sprint exposure & high-speed top-ups are typically programmed
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@MrFranSilver
Fran Silver
3 years
High-speed in possession appears to be linked with success (page 27, figure 2.2b)(I've added possession stat plus green or red for loss of team with highest in-possession high-speed outout) So, high-speed work must be linked with technical/tactical football actions
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@MrFranSilver
Fran Silver
4 years
▪️Context before content ▪️Individual before athlete ▪️Principles before methods ▪️Why before what ❓What other simple rules help the coaching/programming process?
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@MrFranSilver
Fran Silver
2 years
3. Physical output ≠ success However, it’s important to know that distance DOES NOT equal success, or at least it didn’t in this World Cup:
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@MrFranSilver
Fran Silver
2 years
1 of 2: It can be nice to interpret data with subjective visualisation - is there balance, is there flow, is there a logical tempo to the loading? I created a mountain vista to visualise daily/weekly/chronic loading. It reminded me of some ancient English proverbs I once heard:
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@MrFranSilver
Fran Silver
3 years
It was a great (and very nerve wracking) experience talking on a podcast for the first time. Thanks for having me on and thanks for being gentle with me @LBPerformance2
@LBPerformance2
LB Performance Podcast
3 years
Episode 4 with @ArsenalWFC S&C Coach @MrFranSilver is now live!📳 - Good Vs Poor Research - Applying Research into Training - Return to Fitness Post- Lockdown - Listeners Questions - Special Announcement #arsenal #podcast #IrishSC
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@MrFranSilver
Fran Silver
3 years
High-speed demands (> 19 km/hr) are contextually different between positions (p 32, fig 2.10). So, positional specific drill design should cater for this, especially when there are HSR targets.
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@MrFranSilver
Fran Silver
3 years
Peak efforts in terms of total metres and high-speed metres in any given minute become increasingly concentrated at the end of the match. So, be prepared…high-intensity outputs will happen when fatigue is highest.
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@MrFranSilver
Fran Silver
2 years
5. Cause or effect? Playing styles and technical prowess certainly affect outputs in some cases. External load can be the effect of technical success rather than the cause of it. These data for 5 of the world’s top forwards tell a great story, albeit with a million caveats:
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@MrFranSilver
Fran Silver
2 years
1. Be ready to run! FIFA defined 3 pos (DF, MF, FW) so a context is lost with regards to wide players. On average, players ran 10 km with 800 m high-speed & 200 m sprint. These could be as high as 13.7 km, 1800 m high-speed and 950 m spr, or more (16.6 km) if you factor in ET!
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@MrFranSilver
Fran Silver
1 year
While using RAMP for warm up structure is fine, I prefer to use a load of Rs: Raise/Readiness Rhythm/Relax Rehearse/Repeat React/Race/Realise I structure the majority of my pitch-based warm ups with progressions based on these themes. …
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@MrFranSilver
Fran Silver
1 year
@DrChrisBishop @DocLachJames @resolveperf @m_buckthorpe @DrDanCoughlan @NSCASCJonline Look forward to that. I have recently questioned the use of IMTP as a marker of peak force within DSI given that other isometric tests can produce more force. In fact, I’ve seen similar peak forces from an isometric single leg squat. More questions than answers at the moment!!
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@MrFranSilver
Fran Silver
2 years
Interested to hear others’ thoughts re individualised velocity bandwidths with GPS. Work down from max v, or up from critical speed or MAS? Or combo of both? In a rehab setting it makes sense to describe velocities metabolically and mechanically. Any other thoughts out there?
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@MrFranSilver
Fran Silver
1 year
Does any one use ecc peak velocity to 'legitimise' CMJs when testing? If so, what's your threshold? Using 1.2 m/s suggested here a number of metrics' reliability (CV% for 600 jumps) improved, which was enlightening/interesting/maybe expected
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@MrFranSilver
Fran Silver
12 years
@HealthHabits Our subconscious behaviour defines us. We are literally physical manifestations of our numerous habits
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@MrFranSilver
Fran Silver
4 years
Same data, different context - the mean lines here represent the group mean for the individual session. They all did approx. the same distance but rated it differently. When analysing training response should we compare athletes to themselves or each other (or both)? 🤷‍♂️
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@MrFranSilver
Fran Silver
2 years
Can anyone recommend any podcasts covering sports science / S&C? Other than @SportsmithHQ , @informpod , @David_synapse , @FootballFitFed , @JustFlySports , @RobbieBourke , @thesportsperfo3 , As I’m already subscribed to them.
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@MrFranSilver
Fran Silver
4 years
If anyone wants the template to produce a similar graphic for their athletes...(I've hidden the formula tab)
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@MrFranSilver
Fran Silver
4 years
Fantastic paper that is a must read (and reread!). Lots to take from it: use of force platforms to guide decisions, field based progressions from control to chaos, long term periodisation, criteria based rehab...the list goes on. It’s a plethora of practical information.
@MattTaberner
Matt Taberner
4 years
Physical preparation and return to performance of an elite female football player following ACL reconstruction: a journey to the FIFA Women’s World Cup @BMJOpenSEM Open Access 🔓 ➕ video content and online supplementary appendix
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@MrFranSilver
Fran Silver
7 years
Finally completed my @UKSCA accreditation & more importantly, got a certificate! Now to hang onto it with continued professional development
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@MrFranSilver
Fran Silver
6 years
Thanks @UKSCA , @ChrisBishop_UK and @anthonyturneruk for a great seminar - plenty to think about!! (Plus, never heard ‘rascal’ used so much in an S&C event 😂👍🏼)
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@MrFranSilver
Fran Silver
2 years
🐔 or 🥚 in ⚽️ Do higher physical outputs/capacities drive better technical outcomes Or Does better technique allow for (and demand) higher physical outputs?
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@MrFranSilver
Fran Silver
2 years
If you’re interested in working for Arsenal Women within our academy set up, check out these positions currently being advertised.
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@MrFranSilver
Fran Silver
2 years
'Box-to-boxes' curving around pitch based landmarks are shown in the picture. To calculate lengths of other curves, see table (note, formula is based on the curve being part of a perfect circle, hence the cut off when midpoint distance equals half the straight line distance)
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@MrFranSilver
Fran Silver
2 years
I had fun doing the last tweet, so here are some more insights on the Qatar World Cup data
@MrFranSilver
Fran Silver
2 years
FIFA have published a lot of match data form the World Cup Here are 5 insights I thought worthy of sharing:
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@MrFranSilver
Fran Silver
2 years
1/8 As i'm looking at the 21-22 @uwcl data currently I thought I'd share some insight into the different positional demands from this year's knockout stages (excluding PSG v Bayern that went to extra time and Barcelona v Lyon that used different velocity bands)...
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@MrFranSilver
Fran Silver
2 years
@mart1buch Thanks for sharing my work! Would love it if fifa had provided a tactical overlay to the physical outputs (uefa did it previously with UWCL data and it was very interesting).
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@MrFranSilver
Fran Silver
2 years
@Shaun_McLaren1 Couldn’t agree more. Given the highest WCS for 1 min is usually ~ 200m/min (12 km/hr), it isn’t physiology that prevents higher outputs; it’s tact/tech constraints. For me, SSGs are the best of both (physical+tact/tech) worlds but not optimal when overloading either in isolation.
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@MrFranSilver
Fran Silver
1 year
@DHMov @WIMU_Sports @statsports @catapultsports @GPSportsSystems @Hudl @PlayerData @ThePowerTracker Currently toying with: Speed test to 30 m, decel as hard as poss beyond 30. High-speed film decel zone in sagittal plane. Calculate decel value from footage and see how well it correlates to GPS reading. In-season, ensure a % of that figure is regularly reached.
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@MrFranSilver
Fran Silver
2 years
Quantifying game intensity or ‘worst-case scenarios’ as m/min across 1-10 minute time frames doesn’t make sense to me, especially when you see what those worst-case moments actually look like in the game. Plus, they don’t seem to link with physiological capacities.
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@MrFranSilver
Fran Silver
1 year
This is incredible.
@ArsenalWFC
Arsenal Women
1 year
For the first time in our history... EMIRATES STADIUM. SOLD OUT. ❤️
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@MrFranSilver
Fran Silver
4 years
A fantastic place to work alongside some fantastic practitioners.
@DeasunO
Des Ryan
4 years
Arsenal FC will be advertising for an Academy S&C coach tomorrow. Great opportunity to work as part of a top class team. It’s an 18 month fixed term contract working with u12 to u16 players in our Hale End centre.
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@MrFranSilver
Fran Silver
4 years
Great presentation from @SJBPhysio_sport on hamstring injuries. With the demarcation line between physio and S&C input becoming more and more blurred this kind of information in invaluable if you work in a MDT dealing with injured athletes!
@ajoakley
Aiden Oakley
4 years
Sam Blanchard - Using research in rehab: Hamstrings Thank you to @SJBPhysio_sport for making this available #RehabInSport Please consider donating to @PSPAssociation for Sam's @Trisleofwight fundraising
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@MrFranSilver
Fran Silver
3 years
When a measure becomes a target, it ceases to be a good measure (Goodhart’s Law). I think this could sometimes apply to GPS and high-speed running. Managing your data’s narrative is just as important as managing the data itself.
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@MrFranSilver
Fran Silver
2 years
I loved this article. “Research will not yield a good answer until you ask a good question” ‘Good’ question being key. “What’s their training load?” doesn’t cut it for me. Better Qs: How does their training load compare to last week? What % was high intensity? More context
@SportsmithHQ
Sportsmith
2 years
"Much to some practitioners’ disappointment, GPS data does not hold all the answers to sport’s mysteries." @JasonAWeber
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@MrFranSilver
Fran Silver
5 years
Thanks @EoinClarkin for the nomination Nominate four coaches and post a picture of yourself coaching @EdRyanMoore @PhysioRose @wesley_fox10 @HillN92
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@MrFranSilver
Fran Silver
5 years
@mullane90 @FootballFitFed @UKSCA @NSCA @basesuk I’d recommend this paper as a good starting point
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@MrFranSilver
Fran Silver
2 years
@BenSayers97 No doubt there’s a physical capacity required to play at the top level. But when everyone has it, the differentiators become something else. In other words; hard work may earn you your ticket to the ball, but when you get there you had better be ready to dance 🕺
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@MrFranSilver
Fran Silver
2 years
Typically, fitness (in terms of physiological capacities) is the not the reason teams win/lose matches. How well tactical and technical actions are executed at various sub-maximal intensities is where real 'football fitness' lies. Just my opinion, with a million caveats...
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@MrFranSilver
Fran Silver
2 years
3. Running ≠ success, BUT... Winning teams tended to outrun their opponents by a mean of 397 m, 221 m and 119 m (total, HSR, SPR). Although less than half of all games were won by the team running more (total, HSR or SPR, 44%, 44% and 48% respectively).
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@MrFranSilver
Fran Silver
2 years
1. Simply stop at end of run. Set a braking zone (smaller=harder) and cue athletes to stop hard. Make competitive by using %maxV in smaller distances with a stop (eg who hits highest % while still braking on 10, 15, 20m etc) This may be useful (cred @DHMov )
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@MrFranSilver
Fran Silver
4 years
Looking forward to reading this. For those that don’t know, Paul is a master of giving the mountain of available data in football some much needed context. I’d always recommend his work to those involved in deciphering it!
@ContextIsKing9
Paul S Bradley
4 years
NEW BOOK: 10+ yrs of R&D in football, blending the Art & the Science has resulted in this resource. Some extremely unique football science work in various chapters. If you are interested. 👇
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@MrFranSilver
Fran Silver
2 years
@SportsmithHQ @SharkeyStories @JackGrealish @JohnTerry26 @drlittletom @davecarolan @c_nev1 @Chrisbarnes60 @DeasunO @coach_roche_ @mart1buch @MarkArmitage85 Enjoyed this…thanks @SportsmithHQ and @SharkeyStories . It’s nicely considered. In a world where it’s fashionable to create a dichotomy and force practitioners to choose their allegiance to a particular method, it’s refreshing to read pros/cons for all options
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@MrFranSilver
Fran Silver
2 years
If you found this insightful, please share/retweet. If there are any questions you'd like the data to try and answer let me know!
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@MrFranSilver
Fran Silver
4 years
Big inspiration/influence from @PaulBLaursen @mart1buch @hiitscience
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@MrFranSilver
Fran Silver
1 year
Have any force plate / CMJ gurus out there figured out a way to evaluate jump strategy (ie hip, knee, ankle dominant/off loading) from the force trace alone? @ProfJLake @ForcePlateCoach
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@MrFranSilver
Fran Silver
10 months
@Stillmanator Great review. I’d echo so many of your thoughts, so I’m glad someone has put them into words so eloquently!
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@MrFranSilver
Fran Silver
4 years
Does anyone have reliable data for velocities at one rep max for trap-bar deadlift and/or split squats?
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@MrFranSilver
Fran Silver
1 year
@timkettenring @carmenbott 100%. In attack, make space, exploit space with speed. I’m defence, take space, restrict potential speed. Speed is only a ‘weapon’ if it’s given the opportunity. Setting up (or closing down) those opportunities is the first step.
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@MrFranSilver
Fran Silver
2 years
None of this is rocket science or even that innovative, but thought it’s worth sharing For more nuanced discussion be sure to follow & engage with @DHMov , @RICH_AgilityLab @leetaft to name a few!
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@MrFranSilver
Fran Silver
2 years
2. Team work! Team totals (exc GK) give an idea of the outputs needed in the world’s biggest comp. On average these are higher than club comps
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@MrFranSilver
Fran Silver
2 years
Never been more excited for a non-fiction book 😂 If it’s as good as the 1st Force book it’s a must-have - and seeing the price reduced today makes it a no-brainier to buy without hesitation!
@dr_jump_uk
Dan Cleather
2 years
Please retweet 🙏 It's finally out! 🔥🔥🔥 I'm so excited to hear what people think. This is a book for anyone who wants to take a deep dive into what makes us run fast. And I got to write it with one of my best friends @Jonnie_Mechanic Get it here:
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@MrFranSilver
Fran Silver
1 year
What is likely part of every S&C coach’s origin story? I don’t think these can be beaten!
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@MrFranSilver
Fran Silver
6 years
For anyone looking at Masters courses, I’d highly recommend this degree. A deeper understanding of research methods, statistical analysis and the historical/philosophical foundations of science can underpin any future sports science endeavour
@MarkWaldron13
Dr Mark Waldron
6 years
2 weeks left to apply for a place on our Masters by Research programme. A range of topics & supervisors to follow:
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@MrFranSilver
Fran Silver
6 years
A ‘must-read’ for anyone using GPS. Practitioners must understand the tools they are using in order to intelligently interpret the data they produce. Thanks @AaronJCoutts @JamesMalone5 @ric_lovell @MatthewCVarley for such a comprehensive paper.
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@MrFranSilver
Fran Silver
9 months
I was a right smartarse at school and regularly questioned the maths teacher as to when I’d ever use trigonometry in adult life. Well, it’s happened! I’m sorry Mr Baxter, you were right. (Turns out it was a complete waste of time, but still!)
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@MrFranSilver
Fran Silver
2 years
Ever wondered how high you'd jump if you weighed 5 kg less? Well, wonder no more (assuming your force production capabilities don't change!). If you're lucky enough to use force plates, take your concentric impulse and see jump height at different body masses using this table.
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@MrFranSilver
Fran Silver
6 years
A must-read for anyone monitoring athlete loads- understand the principles before you get bogged down in the methods
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@MrFranSilver
Fran Silver
1 year
This is a great opportunity to be part of an amazing project.
@ElliottSale
Kirsty Sale
1 year
I’m so excited to share this amazing PhD studentship with us @McrInstSport in collaboration with @ArsenalWFC @ArsenalEvolve Check it out! ⬇️ Please RT & share widely as we are looking for an excellent student to come & work with us
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@MrFranSilver
Fran Silver
1 year
@SimonBrundish @DeasunO @statsports @ben_rosenblatt @darrenburgess25 @kevinpaxton10k @struds1972 @DrChrisBishop Probably just ease of application Simon. Mean game HSR is likely 200-500 m. Box2box (consistently known distance) in 12-15 secs is 5-6 m/s, fast enough for HSR but not sprint distance. 6-8 would give 300-400 m hsr, with a 1:2 work:rest ratio. All logical.
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@MrFranSilver
Fran Silver
5 years
Looks like Excel can no longer manage all of our athletes’ training loads and we’ll have to rely on good coaching and intuition again 👀
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@MrFranSilver
Fran Silver
3 years
And yeah, I missed out ‘are’ (there are plenty…) in the last tweet 🤦🏼‍♂️after all that effort I fell at the final hurdle.
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