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This is gold

thank you!

bit wouldnt normally the blood pressure increase when excercising , dilatation would lower bloop pressure

I've been a distance runner for49 years. Prior to age 52, I was still running sub 6 minute miles. Mostly 5:20. Around 52 I noticed that my times were slowing down but my perceived level of effort was still the same. VO2 Max decline. Now67 and still running. Yes, I'm now in the 9:20 range but I'm still running about 7 miles for 6 days a week. Informative video. Staying as fit as possible is my goal as I age.

this video is a bless

This is an underrated Video on Exercise physiology, great job! Sometimes, just one study can change our whole perspective. Thanks for the great Work !

very nice representation sir thank you

Awesome presentation. Thanks for breaking this down so clearly.

Lovely

Super helpful, Thank you <3

Прекрасни модели на науката представяте във вашите видеа.... Имам въпрос относно бегачите на 400 метра. В кой момент те изразходват своите резерви от фосфокреатин.... В началото или в края на бягонето....?!?

Very much appreciating your videos! If I may ask, what test might I ask of my Dr. to check my body's ability/capacity to dilate blood vessels? Thank you!

Great video. Is there any research on how to optimize training to increase stroke volume?

my v02 max 31 lol very poor

You're selling us old farts short. At 52, I, a recreational runner who has never engaged in serious sports, ran a flat 10K in under 39 minutes, averaging 6:14 a mile, or a little under 10 mph for nearly 40 minutes. But it's undeniably tougher as you age. At 42 my VO2max was 62. Today, at age 68, it's about 49 despite regular exercise (cycling), and I can no longer even dream of hitting, let alone maintaining, a pace of 8.5 mph on the treadmill.

i want just to know how it is recovred

Very interesting figures! Different vo2 correlates with 10 mph 6 mph etc. But for how long? 1 min? 10 min? Not giving a time scale, makes the numbers a little useless...

Great video - very informative! well presented. Thank you for the opportunity to learn.

Very informative & well presented - Thank you.

As a matter of interest I am 8o yes old have run continuously ll my life many marathons and ultras my marathon time was 2.52 my 21 klms 84 minutes. Fastest 8klms 30.12 . My current 10klms time is 1hr 8 min my objective is to get down to 1hr . My vo max has increased from 35 to 37 .I do 30 klms per week and have started weights in the last 3 weeks .aiming for a vo reading of 40 . Will increase my weekly training in the next few weeks😅😅

Thank you!

Sounds reasonable. But how to explain the need to train at zone2?

I have Orthostatic Intolerance with blood pooling in my arms and hands. I have been able to improve lower body circulation markedly with a spin bike, which is primarily a leg exercise. However I have been struggling to figure out how to improve venous return in my arms and hands. It has been my understanding that cyclical exercises such as cycling increase stroke volume and heart chamber size but that most arm focused exercises are more of a strength exercise that mostly only increases thickness of the heart such as bicep curls. What kinds of exercises, intensity, and duration do you think would most improve venous return in the arms and hands specifically? Do you think exercises that improve overall stroke volume are better or exercises more focused on your arms?

I have Orthostatic Intolerance with blood pooling in my arms and hands. I have been able to improve lower body circulation markedly with a spin bike but have been struggling to figure out how to improve venous return in my arms and hands. It has been my understanding that cyclical exercises such as cycling increase stroke volume and heart chamber size helping with venous return, but that most arm focused exercises are more of a strength exercise that only increases thickness of the heart such as bicep curls. What kinds of exercises, intensity, and duration do you think would most improve venous return in the arms and hands specifically? Do you think exercises that improve overall stroke volume are better or exercises more focused on your arms?

If someone with known plaques in their arteries were to exercise and increase their VO2 max, would it decrease their risk of heart attack and stroke?

Jayson, or anyone, I encountered the final graph in this presentation (show low, avg & elite VO2max by age) in Dr. Peter Attia's book "Outlive". It also has the example activities at each VO2max level (from sleep to running 10 MPH). I came to the internet to try to find the missing factor in the chart, but it was also missing in the presentation. The factor is how long a person would need to sustain the given activity to demonstrate the associated VO2max? I cannot afford a VO2max test, but would be interested to see where I am on the scale if I knew how long I would need to sustain the activity. Thanks! Gary

"Ageing is an athletic event" 🔥

Thank you Jayson! This explains how VO2Max helps my athletic performance. As someone who was sedentary 39 year old, my VO2Max (according to Apple watch) was about 40. I was getting out of shape and wanted to change that so I took up running. Now I'm over 41 and the VO2Max has creeped over 50 and I've never been so fit.

This is the best video on VO2 max I have seen on youtube. I can witness that to run 20km/h, your VO2 max needs to be around 65. I liked the linear regression between running speed and VO2 max. However, I am still curious what is the equation Running Speed = m VO2max + b (y = mx +b). Certainly, it is made using R2 coefficient and statistics stuff! ... so interesting and inspiring now I understand that some runner can hold more than one minute that you mentioned with lactate around 9 without fainting unlike Guidey in World XC hhhh!

Great presentation explaining why bother to push our limits. It would be very helpful to find realistic exercises for old people to increase the VO2Max. Most of the recommendations I found online make me hyperventilate just reading about them...

thank you for the explanation.

Thanks, very useful.

Keep the videos up, great content!

As someone who has been a distance runner for 55 years, I found this video interesting and informative. Obviously I know I'm slowing down with age, and feel the extra effort required to do ordinary physical work. But I never researched just how much VO2max declines with age, even if a high level of fitness is maintained.

PaCO2 decreases from rest to exercise. Wouldn’t that mean carotid chemoreceptors play no role evoking the ventilatory response to exercise? This would render Group III/IV afferents along with central command contributing almost entirely to the ventilatory response to exercise right?

Great video super helpful!

Very helpful 🤓

Just found this video. Great info. Question professor: any reason to skip the 88% - 105% (sweetspot to superthreshold) in the study (minute 31:00) ? I would like to know more on that region as well. From the line graph, is it really the least improvement intensity region to train or Should have more data points in this region?

Great 👏

Great 👏

Excellent

So much fantastic information in this presentation. Thank you so much for sharing!

Hi Jayson, great presentation. Thank you for posting.

Explained in simple words, as a non medical person who enjoys long cycling trips, I can safely say I understood most of what you said! Cheers!

Carbs twice as good as fats for energy during exercise. I have some okay running books and watch alot of online videos to learn this. This is consistent with what I learned, but they usually explain it without this much details, and tons of misinformation on the internet. BOoks do not have as much misinformation as videos. For example they tell you to not have any carbs with keto sometimes and it would totally hurt your health when you need it, especially for running. There are many intermediate theories or pseudo-science theories that screw people up.

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