Trent Stellingwerff, PhD / CSEP-CEP / FACSM / ChPC
@TStellingwerff
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Director of Performance Solutions / Applied Sport Research - Canadian Sport Institute - Pacific; Runner and lover of Olympic Sport!
Victoria, Canada
Joined April 2012
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This puts 2.40m high-jumping in perspective: Barshim jumps 2.43m compared to a basketball rim = incredible!
http://t.co/xqk2Qn14Jc
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ATHLETES LISTEN UP: When you train you have to adequately fuel. When you train more, you have to EAT MORE. Food=fuel. Fuel=adaptation. Adaptation=Performance. 3 new studies showing aspects of fueling related to bone health, injuries, over-reaching & performance. See below.
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A nice reminder about the top 20 cognitive biases to start our 2021...
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Just give us the times actual times!!! This time back graphic doesn't help!
@WorldAthletics
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For those that read sport science textbooks please read this (an email I just sent, now blinded) - as most times the content is developed off the backs of experts, who do it for free, and then give up copyright. The scientific publishing industry model has to change.
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Olympic Golds can move people. Here is Gjert Ingebrigtsen father of Jakob after his son won 1500m
@Tokyo2020
Olympic Gold
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Are you kidding me? Who gets into Science magazine (w/ insane impact factor) with a sports nutrition review?
@LouiseMBurke
&
@JohnAHawley
author an amazing review that will hit the masses of science. Great overview & required reading! OPEN ACCESS:
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Finally-a unified approach to classifying research participants performance caliber, where the terms world-class/elite/sedentary actually mean something! Great co-authors in
@MckayAlannah
@ella__smith_
@davidtmartin
@inigomujika_en
Dr. Goosey-Tolfrey,
@SheppardCoach
@LouiseMBurke
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For unfortunate reasons there is a lot of communication the last few days on body weight, body image, physical health, mental health & performance. Unfortunately, there have been a lot of misconceptions, and logical fallacies, about body weight & performance-some of my thoughts.
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For years "lactate" has been the devil. It's not! Correlations w/ fatigue aren't causative: if you read anything today, please read this: . (now associated acidosis (pH) is another story, and also controversial, but it's not lactate!).
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to any/all of football friends, Usain Bolt hasn't raced in nearly 2 years, 32 years old, and most recent tweets are about partying, runs 4.22 40 yard NFL Combine to tie fastest time ever.....in sweats and sneakers.....
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There are some publications you are just especially happy and proud of – a real team effort and finally published today: 42 world-class female runners training, injuries and performance outcomes before, during and post-pregnancy.
@MSSEonline
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This publication means a lot- authors are unreal! (
@runmarycain
@laurenfleshman
@karagoucher
@margomountjoy
@DrKateAckerman
@ElliottSale
. Editorial in
@BJSM_BMJ
on changes required for RED-S on health/performance. // see here:
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The onslaught of software facing the modern sport scientist (as collected by
@smartabase
). Interesting that I still do most of my athlete programming using a bespoke spreadsheet made live into Teams...
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Are there overlaps between overtraining and
#REDS
? Is much of overtraining just a product of under fueling, and should actually be diagnosed as
#REDS
? 30 pages & 265 references later, proud to present this new
@SportsMedicineJ
review:
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OPEN ACCESS! Must read if you work in sport. The Australian Institute of Sport (AIS) and National Eating Disorders Collaboration (NEDC) position statement on disordered eating in high performance sport - great work to this team:
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It's finally here, great authors for this 17 paper open access (FREE)
@iaaforg
Sports Nutrition Consensus in
@IJSNEMJournal
out today, special edited by
@LouiseMBurke
@PetePeeling
@TStellingwerff
Lindy Castell and Stephane Bermon //
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2:01:40....what did we just watch? Phenomenal - history made - 1:17 seconds on the old WR. This is out of sight. Given how long he ran alone, I think this is actually a better performance than the
#SUB2
race.
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Next time you think you have a tough road to the Olympics think of this: Kenya currently has 332 men under Olympic standard in the marathon
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FRUSTRATED....journal reviewers/editors, please consider my rant for the day....
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Do you know how hard it is to pace a marathon? It is so much harder in the heat.
@MalindiElmore
was 1:15:29 first half and 1:15:30 second half!!!
@tasha_wodak
basically the same! Both went in ranked over 50th, and came out 9th and 13th.
@AthleticsCanada
@TeamCanada
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Well that was pretty freakn amazing
@EvanDunfee
!
@AthleticsCanada
Bronze!
@IAAFDoha2019
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A monster lunch after a monster PB and Olympic finals qualifier for
@lalongen
. This is how world class endurance athletes fuel to recover!
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Wow - what a race and what a close for SILVER!
@Moh_Speed
and
@justyn_knight
- both outstanding races and outstanding humans!
@AthleticsCanada
@TeamCanada
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supercomputers really are just as powerless as humans at predicting injuries based on running form...maybe we [need] to stop arguing about footstrike and cadence and shank angle...and just agree to take a rest day every once in a while.
@sweatscience
#AMEN
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I love both Athletics (Track & Field) and professional cycling. Well, this year, at
@LeTour
we have a sub 4min miler turned pro-cyclist, and Canadian,
@rusty_woods
- best of both worlds! Great article (and photos) on Mike here:
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This graph always reminds and humbles me on the complexities of life and why having good senior mentors are a must!
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1/ I thought I would wait until Doha 2019 World Champs were over, before giving my thoughts on the hot weather – as having been here, working with athletes on the front line, gives me a unique perspective.
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a lot of athletes want to skip right to the "glamorous/exotic" training camps, but here is my ordered list of things to focus on first:
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A thread: In no particular order, 21 research papers that influenced me in 2021 (many more did as well, just no room :)). I'll try and capture some of the authors Twitter handles as well (but am missing many, sorry). Here is to a great 2022!!!
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again, the explosion of "technologies / gadgets" has outstripped our scientific ability (time to keep up) to validate. Exceptional paper here, showing less than 15% of technologies are actually validated. Know what you're measuring!:
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@EvanDunfee
@MySugarFreeJrny
@MarikaSboros
@sacrisis
@the_hough
@Pcyryl
@Gearoidmuar
@NoonesFirstNan
@bokkiedog
@davidjackson196
@OZmandia
@FatEmperor
@_eleanorina
@shashiiyengar
@erreyedoc
@GlenCAnderson
@kirbz83
@Healthspan_Diet
@BurpeesCure
@TuckerGoodrich
@AmandaZZ100
@KetoCarnivore
@L_R_T
@ProfTimNoakes
@IMWHorvitz
@chakm1
@IamBreastCancer
@Dreamskygirlsa
@feline_charm
@SamueleMarcora
@AlastairMcA30
@Slipp_Digby
@TroKalayjian
@DaveKeto
@lamelaspablo
@douglasritz
@HodkinsonAlice
@puddleg
@vmehling72
@thenntgroup
@stratman119
@DrAseemMalhotra
@garytaubes
@grantsnz
@bigfatsurprise
@drjasonfung
@MaryanneDemasi
@DietDoctor1
@CrossFit
@anahadoconnor
.my longer 2 cents on my current LCHF/Keto thoughts of someone who works with elite Olympic athletes and conducts research in sports nutrition.
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I'll say it again - this is the best Olympic village food I have ever had (and I've been to a few of these). So much selection with great food hygiene and such positive and happy servers. Kudos to
@Tokyo2020
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Must be some biochemist cycling fans, as just saw the ATP -> ADP + Pi hydrolysis reaction chalked on the road at
@Il_Lombardia
. Although they are missing the "Pi" that comes off with ADP.
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please take the time read this!!! We will also have data out soon showing 4.5X higher stress fractures in athletes who are under fueled, this article is well-research, well-written and spot on, thank you for sharing
@bobbsclay
!
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Get the basics right! Athletes sleeping >8h & reaching nutrition recco's reduced the odds of injury by 61% & 64%!:
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It's Canadian Thanksgiving. I am thankful for family, friends and a great job/life. But, I also got super sick this week with an infection (i'll be OK), and I'm so thankful for the Canadian Medical system. In 4 hours, 2 types of IV antibiotics, X-Ray, CAT scan, and zero bill.
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I have long used, and been a fan of, the session RPE scale with athletes. Here Foster et al. have a great review on the 25 year history of sRPE - with some great figures showing how effective it can be. Did I mention it is free to implement?! ;)
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1/ A thread: I've been asked a lot over the last few days about our heat adaptation protocols for Tokyo 2020 - the hottest Olympics ever. So a few thoughts...
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great
@StephenSeiler
paper - why longer intervals (~3-6min) are required for maximizing cardiac strain in training.
#VO2development
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STUDY: Long-term senior athlete sport success is facilitated by extensive childhood/adolescent multi-sport practice, relatively late start in the main sport, gradual initial progress, and only moderate childhood/adolescent specialized main-sport practice.
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Unpublished data!!! -
@LouiseMBurke
gives us a glimpse into elite racewalk study Supernova 2 - and shows High carb training resulted in a significant 4% improved 10km race, ketogenic group went -3% worse (significant) and periodized carb 2% improvement (non-significant).
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Check this out. Pretty much every single runner, except the winner
@EliudKipchoge
, basically had a distance to exhaustion approach in today's men's marathon. How do we best mimic this in research study designs? Time trials not always the best approach IMHO.
東京五輪男子マラソン ペース変動グラフ
#TOKYO2020
Men's
#Marathon
Pace Chart
#大迫傑 #中村匠吾 #服部勇馬
#eliudkipchoge
#東京2020オリンピック
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What really is periodized nutrition? First publication of 2019: Proud of this periodized nutrition framework review with
@LouiseMBurke
&
@JamesyMorton
-
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Aging gracefully is not that hard - exercise, eat well, don't smoke, limiting alcohol intake + lots of sleep. Great paper on the set-point theory of aging of masters athletes, open access:
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This about sums it up.
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my estimated weighted RPE based analysis of Eluid Kipchoge's training leading into the Berlin Marathon (August/Sept) via - some interesting analysis / insights.
#basics
#hardBUTsimple
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UNREAL....
@MalindiElmore
breaks CDN record by over 2' for a 2:24:50. Also sets CDN records for 25km, 30km, 35km and 40km en route. Un-freakn' believable Malindi!
@AthleticsCanada
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JUSTIN GATLIN 100M WORLD RECORD 9.45!!!!! (Wind Assisted) - I’m not sure how this is much different than what we saw earlier today...why not run down a mountain?
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This is Yuki Kawauchi 80th (yes you read that right) marathon since 2009...to a win at
#BostonMarathon
the "citizen's runner"
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Team Celebration at
@TeamCanada
Olympic house for
@AthleticsCanada
! Best result since 1932!
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Huge room cheering and crying see
@EvanDunfee
earn his bronze in the last few hundred meters! That is one tough race - to stay in it - right until the last 500m!!!! It has been challenging in Sapporo - congrats to the entire team!
@AthleticsCanada
@TeamCanada
@csipacific
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Been waiting a while for this knee surgery (meniscus arthroscopy) which I got today. I haven't been able to do something I love (run) for nearly a year. Apparently surgery went well - so fingers crossed I can rehab slowly to running again by this fall.
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Another example of outstanding performances by a mother of 2 and what most would call an older athlete- federations, selection committees- take note.
🇦🇺 Sinead Diver smashes the Australian marathon record with 2:21:34 in Valencia.
The Irish-born athlete turns 46 in February and her previous best was 2:24:11.
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So great to see these women re-defining public biases of age "norms" (based on old data). In the least year we've had a 41y old get top-10 at Worlds (
@lyndsay_tessier
) and a 38y old (
@tasha_wodak
) and 39y old mother of 2 (
@MalindiElmore
) break the CDN half and marathon records.
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STUDY: a short afternoon nap improves endurance performance in runners that obtain less than 7 h night-time sleep = naps help when tired, but get a good long sleep at night first and foremost:
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Really proud of this extensive (19 pgs!) contemporary altitude periodization review in Sports Med for elite endurance athletes. It took a few years, but it was worth the wait, w/ world-class co-authors
@inigomujika_en
@AvishSharma5
- free online access:
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It's days like today (hearing of Kiprop's positive) that I think back to 1500m final's such as 2008 Olympics in Beijing and how badly I feel for
@nickwillis
. First Ramzi positive and now this BS. Pictures tell it all - an important moment tainted for Nick.
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And we're off! The boys will be cheering for everyone, but maybe a little more for Corinne's mom (aka
@BishopMelissa
).
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Ovulation is the gold standard for menstrual status assessment – even better than menstruation on its own. This is an important facet of prevention of Relative Energy Deficiency in Sport (REDs). See infographic, full clinical protocol here:
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Final paper accepted in 2018: Successful mid-D pacing at World & Olympics. 800m & 1500m have pacing signature. "Pacing variability was high compared with WR's (CV: 5.2-9.1%), showing that athletes need to be able to vary pace and cope with surges."
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Aerobic high‐intensity intervals are superior to improve V̇O2max compared with sprint intervals in well‐trained men
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Twitter-help me out. I love reading endurance based books (running, cycling, triathlon, ultras, Everest etc.)- from sport science, to biographies to fiction. Any suggestions on great reads? (old or new or obscure, as I would have all the normal mainstream books already) - thanks!
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I've just realized I've hit 100 publications. I am truly humbled. It wouldn't be possible without amazing mentors & students. Biggest collaborators include
@LouiseMBurke
(19 papers);
@mackinprof
(13);
@JohnAHawley
(11);
@LSpriet
(11);
@Jeukendrup
(7) - sincerely thank-you!
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First Canadian women ever under 1:10 for the half marathon - new Canadian record for
@tasha_wodak
in 1:09:41!!!
@AthleticsCanada
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1) It's a shame when main-stream media tout the newest diet fad for elite athlete performance without any direct evidence to support it (beyond correlations, which are omnipresent in nutritional epidemiology).
@mackinprof
@EricRawsonPhD
@LouiseMBurke
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really proud of this new paper with
@IdaHeikura
@LouiseMBurke
et al.. in world class runners: amenorrheic and low testosterone runners have 4.5X more bone injuries and up to 10X more days lost training than controls!
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Wow - congrats
@gstafford13
- first Canadian ever to break 2min, 4min and 15min.
#range
@AthleticsCanada
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The concept of "expert" seems nearly lost, especially when it comes to nutrition. Everyone eats - but does that make everyone an expert on nutrition? Would you take cardiac surgery advice from someone who did not go to med school? Be weary of self-proclaimed nutrition "experts".
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Real world example of how Relative Energy Deficit in Sport (RED-S) limits performance. Amenorrheic athletes have 8.0% lower HBmass than eumenorrheic. Yet, many spend thousands of dollars to go to altitude for less of an HBmass increase. Adequate energy=more optimal blood health.
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Kudos to about half of our
@AthleticsCanada
sport medicine and science team. These folks work their tails off. 8 to 10h / day in the heat and finishing each day about midnight and starting again early! We also represent
@csipacific
and
@CSIONTARIO
.
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Wow, another study showing low carbohydrate availability (without an energy deficit) is more deleterious (at least short term), than low energy availability - this time on markers of bone turnover.
@NikitaFensham
@IdaHeikura
@LouiseMBurke
@DrKateAckerman
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Really proud of this case-study, 9 yrs in the making: Periodized body comp approach over 9 years in world-class female middle-distance runner- how to optimize health and performance:
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Yes - even Olympic trained athletes can get hit HARD with COVID19- if you need any evidence as to why you, as an athlete, do not want this, read. Be patient, be safe, have good protocols -
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Anyone that has every worked with me on any training monitoring/tracking will know how much I love ratings of perceived exertion (RPE) along with an external load metric - this huge data set-shows how great this simple approach can be!
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Outstanding RED-S / energy availability PDF infographic from our
@csipacific
@CSICalgary
@CSIONTARIO
& INS and Center RD'S. see: //
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Much recent discussions on elite female runners, pregnancy & performance. Data I've collected in 10 elites. 1 year of maternity leave is mythical, as (on avg w/ large error bars) significant injuries & decreased performance. Year 2 = completely different story & worth investment!
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threading the needle on statistics in world-class athletes...
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really proud of
@hstellingwerff
being named the new Program Leader / Head Coach of UVIC Track & XC
@trackthevikes
@uvicvikes
-
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ME: so I'm getting up int he middle of the night to watch the Berlin Marathon. FRIEND: Are you nuts? For a marathon? ME: Would you get up to watch the superbowl if in the middle of night? F: You bet! ME: This is our superbowl!
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there is a lot of mis-information about menstrual cycles & performance-lets stick with evidence. New meta-analysis (n=51 studies) on menstrual cycle status/phase and performance outcomes - too variable for strong outcomes = individualize! OPEN ACCESS!
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Cruising along at ~2:50/km pace.
@CamLevins
wins todays
@VictoriaMarathn
half marathon in a new course record of 61:18.
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parents - read and think about this one...(not sure where original came from, but outstanding).
http://t.co/fnBObuVBXZ
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The
@bostonmarathon
results are unique this year. But, after seeing this meticulous preparation by
@kristaduchene
& team, and background context, her third place finish might not be surprising. I'm proud to have worked w/ her,
@realdst
& entire
@Speedriver
group over the years.
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Did we just witness the greatest single day on the roads for Canadians in history? 5 women <1:12 in half marathon, 2 men <62:20 and a 2:24:50 marathon! 2 CDN Records.
@AthleticsCanada
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Serious selection of sauces, spices and condiments at the Olympic Village. Honestly, I would say thus far the food at the Tokyo Olympics has been the best of any Games I've been to.
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So Head Coach
@GlenroyGilbert
has just announced
@AthleticsCanada
3 team Captains. Absolutely outstanding athletes and outstanding humans...but also, all 3 are parents! Our team is in great hands. Congrats to
@MalindiElmore
@BishopMelissa
and
@KingsleySC
!!!
@TeamCanada
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Study: Nutrition professionals (RD's) demonstrate greater knowledge than Registered Exercise Professionals - with implications on scope of practice. Just like you wouldn't go to anyone for heart surgery, don't get nutrition advice from non-professionals:
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I've experienced this positive outcome many times...in athletes that are willing to take a risk (their words) and shift their relationship with food. Food = fuel and fuel = performance. Great article:
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Analysis of # of DQ's in M & W 400m events per
@iaaforg
World Indoor Champs over the last 12 editions - couple of outlier champs.
@letsrundotcom
@craig100m
@jon_brown_
@Statman_Jon
@sweatscience
@CanadianRunning
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Crisis of confidence averted: Impairment of exercise economy and performance in elite race walkers by ketogenic low carbohydrate, high fat (LCHF) diet is reproducible
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WOW! Another example of why Mother Nature knows best- even Ibuprofen has profound side effects-600mg/day of ibuprofen for 1.5 months induced conditional hypogonadism in men via a 23% decrease in free testosterone/LH ratio. Don’t pop pills indiscriminately!
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Outstanding
@ACSMNews
Wolffe Lecture by Prof Stuart Warden. Running is not that osteogenic, adapts very quickly within a single run and early specialization in running increases risk of BSIs. Multi direction sports, jumping and strength work all required.
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and this is why
@nickwillis
is a class act, and part of the many reasons he has survived and continues to flourish in our sport for many years - athletes, please try and find intrinsic reasons to do this sport, like Nick:
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OPEN ACCESS: I'm very proud of this study w/
@IdaHeikura
@LouiseMBurke
et al. n=59 VERY elite runners! Males & females w/ makers of low energy = 4.5X more bone injuries and 10-fold greater days missed due to injury. MUST reading for athletes & coaches!
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