Jamie Burr (@dr_burr) 's Twitter Profile
Jamie Burr

@dr_burr

Exercise Physiologist. Focus on Health and Human Performance. University of Guelph, Canada (he/him)
Bluesky: @HPLBurr

ID: 533630596

linkhttp://hplguelph.weebly.com calendar_today22-03-2012 23:27:11

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HHNS at UofG (@uofg_hhns) 's Twitter Profile Photo

📢Christian Cheung, PhD Candidate, Will Defend His Thesis! 🧠Cannabis Inhalation & Neuro-Cardiovascular Physiology 🏃Dynamic Exercise Consequences 🥼Dr Jamie Burr's Lab UofGResearch! 🔗Human Performance Lab: hplguelph.weebly.com 🗓️Jan 28 ⏰12:30pm 📌SSC 2315 College of Biological Science 🏛️#UofG

📢Christian Cheung, PhD Candidate, Will Defend His Thesis!
🧠Cannabis Inhalation & Neuro-Cardiovascular Physiology
🏃Dynamic Exercise Consequences
🥼Dr Jamie Burr's Lab <a href="/UofGResearch/">UofGResearch</a>!
🔗Human Performance Lab: hplguelph.weebly.com

🗓️Jan 28
⏰12:30pm
📌SSC 2315 <a href="/UofGCBS/">College of Biological Science</a>
🏛️#UofG
Max Planck Society (@maxplanckpress) 's Twitter Profile Photo

More than 40 percent of #postdocs leave academia. Those who landed a coveted faculty position were more likely to have had a highly cited paper, changed their research topic between their #PhD and postdoc, or moved abroad after receiving their doctorate. pnas.org/doi/10.1073/pn…

Jamie Burr (@dr_burr) 's Twitter Profile Photo

Looking forward to this next week! The culmination of a lot of hard work (with many interesting findings!) It all started with an undergrad volunteer in the lab with big ideas, many moons ago.

Looking forward to this next week! 

The culmination of a lot of hard work (with many interesting findings!) It all started with an undergrad volunteer in the lab with big ideas, many moons ago.
Tadej Debevec (@debevectadej) 's Twitter Profile Photo

Habitual preexercise caffeine supplementation prevents exercise training-induced attenuation of exercising systolic blood pressure and double product | ⁦Journal of Applied Physiology⁩ journals.physiology.org/doi/abs/10.115…

Jamie Burr (@dr_burr) 's Twitter Profile Photo

Huge congratulations to Dr. Christian Cheung on successfully defending his PhD! Your hard work and dedication have paid off, and we look forward to seeing the amazing contributions you'll continue to make to the field. Well done!"

Huge congratulations to Dr. Christian Cheung on successfully defending his PhD! 

Your hard work and dedication have paid off, and we look forward to seeing the amazing contributions you'll continue to make to the field. Well done!"
Jem Arnold (@jem_arnold) 's Twitter Profile Photo

Polarised🆚Pyramidal🆚Threshold Which training model is best?🏆 It might matter how trained you are🤔 Our new meta-analysis tries to answer which training intervention produces the greatest improvements in endurance performance in trained athletes Thread🧵 & 🔗links below👇

H-C Holmberg (@hcholmberg1) 's Twitter Profile Photo

🚴 UCI's new CO inhalation regulations for riders align with researcher recommendations, limiting use to medical settings for Hb mass measurement: shorturl.at/1f6r8 ➡️ See our previous Editorial in SJMSS on this 🔥 topic: shorturl.at/kqE29 #UCI #CO #Doping #sports

College of Biological Science (@uofgcbs) 's Twitter Profile Photo

How does cannabis impact the cardiovascular system?🩺 New study by Jamie Burr & recent PhD grad Christian Cheung HHNS at UofG shows that THC-predominant cannabis (but not CBD-predominant) can increase heart rate & blood pressure similar to cigarette inhalation. 🗞️ uoguelph.ca/cbs/news/2025/…

How does cannabis impact the cardiovascular system?🩺

New study by <a href="/Dr_Burr/">Jamie Burr</a> &amp; recent PhD grad <a href="/cp_cheung/">Christian Cheung</a> <a href="/UofG_HHNS/">HHNS at UofG</a> shows that THC-predominant cannabis (but not CBD-predominant) can increase heart rate &amp; blood pressure similar to cigarette inhalation.

🗞️ uoguelph.ca/cbs/news/2025/…
Eric Topol (@erictopol) 's Twitter Profile Photo

I wouldn't have anticipated this one! Preventing or treating hypertension through a gut microbiome intervention, in both mice and a pilot study in people cell.com/cell-metabolis… Cell Metabolism

I wouldn't have anticipated this one!
Preventing or treating hypertension through a gut microbiome intervention, in both mice and a pilot study in people
cell.com/cell-metabolis… <a href="/Cell_Metabolism/">Cell Metabolism</a>
Hilkka Kontro (@hilkkakontro) 's Twitter Profile Photo

Tom's Weekend Warrior study is out! Training either 4x (short) or 2x (long) weekly resulted in the same adaptations, when overall volume and content of training was fixed. Performance, thresholds, efficiency, Hbmass, and ox cap ↑ equally in both groups. Martin MacInnis

Tom's Weekend Warrior study is out! Training either 4x (short) or 2x (long) weekly resulted in the same adaptations, when overall volume and content of training was fixed.

Performance, thresholds, efficiency, Hbmass, and ox cap ↑ equally in both groups. 

<a href="/MartinMacInnis/">Martin MacInnis</a>
Tadej Debevec (@debevectadej) 's Twitter Profile Photo

New in AJP-Regulatory, Integrative Comparative Physiology No sex differences in performance and perceived fatigability during a self-paced endurance exercise performed under moderate hypoxia journals.physiology.org/doi/abs/10.115…

Jackson Fyfe (@jacksonfyfe) 's Twitter Profile Photo

Resistance training: the most potent tool for muscle growth. But do men and women benefit equally? Our new meta-analysis led by Martin Refalo found: ➡️ Men saw slightly greater absolute muscle growth ➡️ Relative gains were nearly identical between sexes ➡️ Type I muscle fibre

Resistance training: the most potent tool for muscle growth.

But do men and women benefit equally?

Our new meta-analysis led by <a href="/MartinRefalo/">Martin Refalo</a> found:

➡️ Men saw slightly greater absolute muscle growth
➡️ Relative gains were nearly identical between sexes
➡️ Type I muscle fibre
Alex Hutchinson (@sweatscience) 's Twitter Profile Photo

I love the idea that aerobic exercise boosts brain size/function and wards off cognitive decline... but the actual evidence is weaker than we sometimes assume. Two new studies bolster the claim with data linking VO2max with cognition, brain size, and age: outsideonline.com/health/trainin…

Jamie Burr (@dr_burr) 's Twitter Profile Photo

As a scientist, a Canadian, and a concerned global citizen, I can no longer support this app I’ll miss the science community, but I’m seeing many familiar faces moving to Bluesky, and it feels like science-Twitter used to. I encourage you to consider the move