I have always been confused whether to use % of HRmax or % of HRR with training plans based on HR. The lower base zones Z1 and Z2 are quite different for me for the 2 different methods of calculation. This AeT test has convinced me that my real AeT (top of Z2) as ascertained during this test is much closer/almost identical to the result I get when using % of HRR calculation. I think I will apply this method of Zone calculation to my training in future
Same for me here. My HRR Calculation was nearly exact to The AeT test. BUT::!! exactly in the middle of the Zone. My Zone 2 from HRR calculation is between 135 and 149bpm, so the middle is 142bpm. And 142 bpm ist exactly in the 5% range from the AaT test...
I usually do an aerobic run of 60-75' once a week where I keep my HR to a steady bpm and check aerobic decoupling with TP afterwards. This has worked much better for me than going out at a steady pace and checking HR drift, especially in warmer temperatures (>35°C now) or when I'm fatigued and cannot keep up with my usual aerobic pace without spiking my HR. That said, I have two questions: *During a 15k run close to/at LT pace my decoupling was under 5% (2.54%) as well, which I find weird. *You write that a run close to AeT (zone2) feels moderate for someone with a high AeT. My AeT is around 152bpm, and runs with that HR are definitely not feeling easy anymore. Is a high AeT a sign of a well-developed or underdeveloped aerobic base (from reason I'd say the former)? Thanks for all the information on your side, I definitely appreciated your "Why we stopped relying on HRV..." piece. It really reflected well what I experienced over the years using HRV as a steering tool for training.
I observed something similar to you: I went on a run at a HR between AeT and LT (as determined by a lactate test) and had a decoupling of only 2 %, which got me confused, whether I just reevaluate my zones (lab test is only 3 months old)
Thankyou for a clear explanation. In a hot climate, the heart is not only pumping to support muscles and pace - it is pumping hard to get rid of heat. My question therefore is: does the method you recommend work for those of us training in say 32 C, where HR drift is likely much greater than for an identical run at say 10C. (Alternatively, what were the ambient temperatures in the sample runs in your excellent explainer?)
Yeah, the method still works. As you noticed, you'll probably have less drift in the cooler months than hotter ones. So you could probably afford to bump your starting HR up a few bpm during the cold months, provided the drift hovers around 3.5-5%.
Hopefully a quick question...I performed a 15 minute warmup and 60 minutes of work. 30 minutes into the work I measured lactate at 1.3 and a ratio of 1.57%. After the final 30 minutes I measured 1.7 and 0.06%. Given negative drift but elevated lactate I'm thinking mid/fast twitch fibers took over and skewed the ratio, have you run into this with athletes before? When I slow the treadmill .2 mph I typically measure .9 lactate so would it be best to slow down or retest and look for the suggested amount of drift? Thanks much for all your content/info.
"if at 3-5% use the starting HR as the new Aerobic Threshold". This sounds like it applies to the outdoor test, not the indoor test. If I follow this protocol on the indoor test I would start at say 9km/h and my splits are 116/116 HR suggesting to me that I can go a little faster and my aerobic threshold be slightly higher than this. If I run at 10km/h I get 120/129 (7.5% drift). I'll test again at 9.5km/h and expect it will be something like 118/123 and I would expect that 118 be my aerobic threshold? Given the whole point is sustainability though, running at a heart rate you know drifts by 5% over just 30mins doesn't sound sensible for something like an ultra over several hours? Isn't the whole point of determining aerobic threshold that you should be able to run forever at that pace?
Hi Scott, I’ve done this test on the treadmill, but I’m confused on what my Zone 2 limit/AeT is. Is it the HR I was “targeting” at the beginning of the test, or is it the average HR from the first 30 minutes? The HR I was targeting was 145, my average HR for the first 30mins was 149, and 156 for the second 30mins. That gives me a 4.5% delta. Is my AeT/top of Zone 2 149 or 145? Thanks!
Brett, I use the Coros Vertix because the cold-weather battery performance is much better than anything else. I also find that the knob is much easier to use than buttons. I only need one finger to move around in the watch with the knob that Coros has. With the buttons I have to get a thumb on the other side of the watch and if it's tucked under a layer this is hard to do. I switched 2 years ago and am very happy with the Coros. I do use a Wahoo brand HR strap ($50) as Coros doesn't make a HR strap. As an aside I"ve used their wrist-top pulse oximeter to record this data on people who might be borderline on moving up in altitude. This gives me data for a whole night on their O2 sats and that is much better than an instant read fingertip reading which can easily been modified if the climber holds their breath or hyperventilates a little bit. -Steve House
You want a watch with a barometric altimeter in it. I use a Garmin 935 because it is smaller and lighter than the Fenix models. Coros has some great watches.
Can you tell if a sweat have an impact on readings from HR straps? What apps do you recommend for HR readouts during following hours of activity, since I've read numerous reports about connectivity issues on lots of them. Best regards
Bartek- Sweat definitely has an impact on HR straps, a positive impact. Dry skin often won't provide any reading, let alone an active reading. In fact an old trick is to moisten your HR strap with a little water or saliva at the start of a workout. We recommend using the app that runs your HR/GPS Watch. And remember this must all be done with a chest-strap. Wrist-worn HR monitors are not accurate enough (at least not yet). We do not put a lot of stock in HRV apps. Here is an article explaining why: www.uphillathlete.com/why-we-stopped-relying-on-hrv-apps/
This was very informative video. Can i ask if performing on a treadmill can i not use the lap function on my garmin. So hit lap after 10-15mins and the again at about the half way mark? I have done more than 12mths of maff running and a good idea of holding slow pace. Thanks
@@UphillAthlete thanks. I guess i dont have the premium version. Also as I mostly do road running do I still set treadmill to 3%. Is it just keeping things consistant or simulating mountain climbing. Thanks again.
@@dazamad The 3% is something we find makes it easier to stay consistent pace/effort wise, more so than for simulating climbing. When we have mountaineers do this we sometimes have them set the treadmill as steep as it will go. I don't know of free tools that will do what premium trainingpeaks will do; if you find one please let us know.
@@UphillAthlete could you use the lap button when you are outside? Strava/Garmin gives you the average heart rate in that lap. So if I set my watch up as 15 minute warmup and then 30 minutes later, I set another lap, I believe strava/Garmin will give the average pace/hr for that lap. Correct me if I’m wrong
@@Kunal636 If you wish to schedule a phone consult to go through these questions, please do so. You can review the relevant articles on our website in detail as well. We can't provide accurate consulting in comments. Thanks for your understanding.
Yes, in our first book we went with the 5 zone system but then realized that we were only using 4 zones in application of training. In TrainingPeaks you can create your own zones however you like, I'm not sure if you can customize zones in garmin.
Leon- This only works if you have a chest strap for monitoring HR (heart rate) and a watch that records the HR data and allows you to import that data into a training-specific app such as TrainingPeaks.
In the first example case, the starting heart rate for both sample tests was around 126bpm. It is odd that the first sample had a 10% increase, but the second sample was much lower. Can your heart rate be the same at different paces - considering both had a warm-up period. How is it possible for the second sample to indicate a 126bpm AeT, but the first sample fails to indicate that? Probably overthinking, but much appreciated.
Chris; Recall that several weeks of aerobic base training elapsed between the fist and second tests. The kind of adaptation is not unusual. The pace chosen for the first test was clearly too fast and resulted in the 10% upward HR drift. While we don't know the pace he chose for test#2 we do know it resulted in a smaller drift. Short answer is that YES the Hr can be the same for different paces, especially when they are conducted weeks apart. I Hope that helps.
@@901scott1 Hi Scott, one thing I'm confused about is: starting HR for this test that was successful gives aerobic threshold/top of zone 2. So for zone 2 training I would maintain my HR below that? Then later you say that this pace would be good for his zone 2 training, however his HR clearly went above that. So my question is, for Zone 2 training, do I start with my HR (after warmup) at that, or is that the maximum and i should not go above that HR any zone 2 workout
I plan on coaching beginners (people who can’t run for an hour straight) would this test be good too much for them or would a lactate analyzer be better?
Have you guys ever seen negative Pa:Hr, I just completed the test and it is giving me -0.65%, I'm not sure if the negative has any meaning or not, any thoughts? I felt like I did the test at the maximum bpm I was able to breath with nose only, a few bpm more and I would've had a hard time doing that. Any recommendation whether I should repeat the test targeting higher bpm or something different?
Breathing strictly through the nose isn't necessarily a great indicator for aerobic capacity. The heart rate drift test outlined here will give you a better picture of what your aerobic capacity looks like. I'd redo the test with mouth breathing and increase your starting HR by 5-6 bpm.
I also came back with negative drift, did you ever figure this out? I took lactate and it popped slightly from the 30 and 60 minute mark, this makes me think mid/fast twitch fibers turned on and skewed the results.
Is Training Peaks really necessary for this? Couldn't I just do this test on a treadmill and, once warmed up, take note of my bpm at beginning, middle, and end?
Joe-Good question. That probably wouldn't work as you need to know the running average and the trend of that average. You can use the free premium trial on TrainingPeaks. It's also possible that some of the apps from suunto or Coros may do what TP does, I just don't know.
@@UphillAthlete Garmin's Connect app does have the ability to display HR data from recorded activities in chart form and it allows you to highlight sections to get the average HR for the given time period so you could use it in the same manner as displayed with TrainingPeaks for an indoor AeT test. While Garmin's app does provide a pace chart, I'm not aware of a way to overlay it with the HR chart so I don't believe you could use it for an outdoor AeT test unless I'm missing something.
It does not matter if your test is 1:20, 1:14 or :52 minutes as long as you have a good long period where you are concentrated on producing the same pace (or power) over a prolonged period. With coached athletes we often can figure their AeT out from just a few zone 2 workout attempts. If you're not sure, just start with your low estimate and start working your way up into it.
@@UphillAthlete thanks a lot !, i managed to do exactly 1 hour test with roller skiing trying to be stable at 128 bpm: I recorded the time of the 1st and the 2nd half; 2nd half was slower by about 2,5%, so I will do the test again next week by adding 5 bpm to the heart rate and see it how it goes, is that correct ?
Hi Scott or Steve. I have performed the test today and took 150 bpm as my starting HR after 15 minutes of warm up. After 1 hour at a steady 6:00/km (9:66/mile) pace my HR drifted only by 1.31% after analyzing the run using TP premium. This seems very little to me, since the pace seemed quite fast to me. I was breathing nose in, mouth out, since I couldn't breathe only trough the nose. I used wahoo chest strap that I also use for my bike. Should I start at even higher bpm? And roughly how high would that bpm be? FYI I'm 24 years old and I haven't done any structured training, but I would say that I'm active (3x climbing training in the gym during the week and cycling/mountaineering/climbing during the weekends).
I know this reply is 10 months late, which means you have probably improved since your question. However to answer it, I would increase your starting HR by 5 beats to 155 bpm and see how that goes for you. If your drift is under 3.5%, you have aerobic capacity reserve.
Sure. As Scott mentions in another reply, execute the test like you do the bulk of your training runs. If you run normally with water, execute the test with water.
Do you guys ever deal with irregular heartbeats in some of your athletes? When I train for multiple days in a row (4 to 6 I want to say), I'll sometimes start getting double heart beats when I'm at rest. Irregular beats is apparently a thing in a percentage of endurance athletes as they age too, so I'm curious to know if you've seen any of this type of thing. Thanks for the vid!
Nicholas: I do know that many aging endurance athletes seem to get atrial flutter and atrial fib but I am not familiar with the double heart beat. But I'm not a cardiologist and it might be worth speaking to a doctor about this.
I occasionally get this weird heartbeat feeling at rest. Heart beat is regular then will suddenly do thump or double beat type of thing. I've had a few occasions of supra-ventricular tachycardia (SVT) from training since my teenage years training for swimming. I saw cardiologist and got given Tambucor to take if I had a SVT attack. Definitely best to see the cardiologist and get a stress test etc.
I used to have those kind of strange heartbearts. I began to suplement with magnesium and never noticed them again. It could be some kind of mineral deficiency.
Scott,
Thank you, really enjoyed this and feel it cleared up some questions I had from the subject in the books.
I have always been confused whether to use % of HRmax or % of HRR with training plans based on HR. The lower base zones Z1 and Z2 are quite different for me for the 2 different methods of calculation. This AeT test has convinced me that my real AeT (top of Z2) as ascertained during this test is much closer/almost identical to the result I get when using % of HRR calculation. I think I will apply this method of Zone calculation to my training in future
Same for me here. My HRR Calculation was nearly exact to The AeT test. BUT::!! exactly in the middle of the Zone.
My Zone 2 from HRR calculation is between 135 and 149bpm, so the middle is 142bpm. And 142 bpm ist exactly in the 5% range from the AaT test...
I usually do an aerobic run of 60-75' once a week where I keep my HR to a steady bpm and check aerobic decoupling with TP afterwards. This has worked much better for me than going out at a steady pace and checking HR drift, especially in warmer temperatures (>35°C now) or when I'm fatigued and cannot keep up with my usual aerobic pace without spiking my HR.
That said, I have two questions:
*During a 15k run close to/at LT pace my decoupling was under 5% (2.54%) as well, which I find weird.
*You write that a run close to AeT (zone2) feels moderate for someone with a high AeT. My AeT is around 152bpm, and runs with that HR are definitely not feeling easy anymore. Is a high AeT a sign of a well-developed or underdeveloped aerobic base (from reason I'd say the former)?
Thanks for all the information on your side, I definitely appreciated your "Why we stopped relying on HRV..." piece. It really reflected well what I experienced over the years using HRV as a steering tool for training.
I observed something similar to you: I went on a run at a HR between AeT and LT (as determined by a lactate test) and had a decoupling of only 2 %, which got me confused, whether I just reevaluate my zones (lab test is only 3 months old)
The first subject was walking in his zone 2 😀 12:00min/km at 133-138 ❤ rate
Thankyou for a clear explanation. In a hot climate, the heart is not only pumping to support muscles and pace - it is pumping hard to get rid of heat. My question therefore is: does the method you recommend work for those of us training in say 32 C, where HR drift is likely much greater than for an identical run at say 10C. (Alternatively, what were the ambient temperatures in the sample runs in your excellent explainer?)
Yeah, the method still works. As you noticed, you'll probably have less drift in the cooler months than hotter ones. So you could probably afford to bump your starting HR up a few bpm during the cold months, provided the drift hovers around 3.5-5%.
Hopefully a quick question...I performed a 15 minute warmup and 60 minutes of work. 30 minutes into the work I measured lactate at 1.3 and a ratio of 1.57%. After the final 30 minutes I measured 1.7 and 0.06%. Given negative drift but elevated lactate I'm thinking mid/fast twitch fibers took over and skewed the ratio, have you run into this with athletes before? When I slow the treadmill .2 mph I typically measure .9 lactate so would it be best to slow down or retest and look for the suggested amount of drift? Thanks much for all your content/info.
1.7 is still under 2.0 which is the marker used for AeT so you're probably right on the money with that power/hr being your top of Z2
@@UphillAthlete I’ve been focused lately on trying to overcome my ADS…appreciate your input. :)
"if at 3-5% use the starting HR as the new Aerobic Threshold". This sounds like it applies to the outdoor test, not the indoor test. If I follow this protocol on the indoor test I would start at say 9km/h and my splits are 116/116 HR suggesting to me that I can go a little faster and my aerobic threshold be slightly higher than this. If I run at 10km/h I get 120/129 (7.5% drift). I'll test again at 9.5km/h and expect it will be something like 118/123 and I would expect that 118 be my aerobic threshold? Given the whole point is sustainability though, running at a heart rate you know drifts by 5% over just 30mins doesn't sound sensible for something like an ultra over several hours? Isn't the whole point of determining aerobic threshold that you should be able to run forever at that pace?
Hi Scott, I’ve done this test on the treadmill, but I’m confused on what my Zone 2 limit/AeT is. Is it the HR I was “targeting” at the beginning of the test, or is it the average HR from the first 30 minutes? The HR I was targeting was 145, my average HR for the first 30mins was 149, and 156 for the second 30mins. That gives me a 4.5% delta. Is my AeT/top of Zone 2 149 or 145? Thanks!
Hi Samantha, it's the starting heart rate for the test, which would be your 145 measurement.
@@brianlang3947 I think that may be true outside but not on a treadmill test
what 2-3 watches do you recommend for training for alpinism?
Brett, I use the Coros Vertix because the cold-weather battery performance is much better than anything else. I also find that the knob is much easier to use than buttons. I only need one finger to move around in the watch with the knob that Coros has. With the buttons I have to get a thumb on the other side of the watch and if it's tucked under a layer this is hard to do. I switched 2 years ago and am very happy with the Coros. I do use a Wahoo brand HR strap ($50) as Coros doesn't make a HR strap. As an aside I"ve used their wrist-top pulse oximeter to record this data on people who might be borderline on moving up in altitude. This gives me data for a whole night on their O2 sats and that is much better than an instant read fingertip reading which can easily been modified if the climber holds their breath or hyperventilates a little bit. -Steve House
You want a watch with a barometric altimeter in it. I use a Garmin 935 because it is smaller and lighter than the Fenix models. Coros has some great watches.
Can you tell if a sweat have an impact on readings from HR straps? What apps do you recommend for HR readouts during following hours of activity, since I've read numerous reports about connectivity issues on lots of them.
Best regards
Bartek- Sweat definitely has an impact on HR straps, a positive impact. Dry skin often won't provide any reading, let alone an active reading. In fact an old trick is to moisten your HR strap with a little water or saliva at the start of a workout. We recommend using the app that runs your HR/GPS Watch. And remember this must all be done with a chest-strap. Wrist-worn HR monitors are not accurate enough (at least not yet). We do not put a lot of stock in HRV apps. Here is an article explaining why: www.uphillathlete.com/why-we-stopped-relying-on-hrv-apps/
@@UphillAthlete Chest strap it is then, thank you for the answer and the link.
Hey Scott, just wondering if it matters whether this test is done fasted or not? I’ve done it both ways and it seems to make a difference.
Do the test in the state in which you plan to do the bulk of your training.
This was very informative video. Can i ask if performing on a treadmill can i not use the lap function on my garmin. So hit lap after 10-15mins and the again at about the half way mark? I have done more than 12mths of maff running and a good idea of holding slow pace. Thanks
Darren, You could use the lap function, but it isn't really necessary if you use TrainingPeaks to analyze the data.
@@UphillAthlete thanks. I guess i dont have the premium version.
Also as I mostly do road running do I still set treadmill to 3%. Is it just keeping things consistant or simulating mountain climbing. Thanks again.
@@dazamad The 3% is something we find makes it easier to stay consistent pace/effort wise, more so than for simulating climbing. When we have mountaineers do this we sometimes have them set the treadmill as steep as it will go. I don't know of free tools that will do what premium trainingpeaks will do; if you find one please let us know.
@@UphillAthlete could you use the lap button when you are outside? Strava/Garmin gives you the average heart rate in that lap. So if I set my watch up as 15 minute warmup and then 30 minutes later, I set another lap, I believe strava/Garmin will give the average pace/hr for that lap. Correct me if I’m wrong
@@Kunal636 If you wish to schedule a phone consult to go through these questions, please do so. You can review the relevant articles on our website in detail as well. We can't provide accurate consulting in comments. Thanks for your understanding.
Hi does your 4 Zone system mess with Garmins 5 Zone system calcs for health stats etc … I like your 4 system better
Yes, in our first book we went with the 5 zone system but then realized that we were only using 4 zones in application of training. In TrainingPeaks you can create your own zones however you like, I'm not sure if you can customize zones in garmin.
I'm very confused on all this. I want to select a training but I don't know how to do this test I don't have a machine or a watch to measure this
Leon- This only works if you have a chest strap for monitoring HR (heart rate) and a watch that records the HR data and allows you to import that data into a training-specific app such as TrainingPeaks.
@@UphillAthlete thank you I did the test my question is what number do you take into training peaks
@@Leon-qh9br That should be explained in this video: uphillathlete.com/how-to-set-up-your-training-intensity-zones/
In the first example case, the starting heart rate for both sample tests was around 126bpm. It is odd that the first sample had a 10% increase, but the second sample was much lower. Can your heart rate be the same at different paces - considering both had a warm-up period. How is it possible for the second sample to indicate a 126bpm AeT, but the first sample fails to indicate that? Probably overthinking, but much appreciated.
Chris; Recall that several weeks of aerobic base training elapsed between the fist and second tests. The kind of adaptation is not unusual. The pace chosen for the first test was clearly too fast and resulted in the 10% upward HR drift. While we don't know the pace he chose for test#2 we do know it resulted in a smaller drift. Short answer is that YES the Hr can be the same for different paces, especially when they are conducted weeks apart. I Hope that helps.
@@901scott1 Hi Scott, one thing I'm confused about is: starting HR for this test that was successful gives aerobic threshold/top of zone 2. So for zone 2 training I would maintain my HR below that? Then later you say that this pace would be good for his zone 2 training, however his HR clearly went above that. So my question is, for Zone 2 training, do I start with my HR (after warmup) at that, or is that the maximum and i should not go above that HR any zone 2 workout
Basically I am wondering if I should use this for determining effective training pace or for effective max HR during aerobic training
I plan on coaching beginners (people who can’t run for an hour straight) would this test be good too much for them or would a lactate analyzer be better?
You can have them do it walking. Have them do it walking around a track or field that is flat but use the other principles in the video.
@@UphillAthlete thanks. Treadmill would work as well right?
@@UphillAthlete by the way, I’ve been reading the uphill athlete book. It’s freaking amazing!
Yes. Treadmill works great.
Have you guys ever seen negative Pa:Hr, I just completed the test and it is giving me -0.65%, I'm not sure if the negative has any meaning or not, any thoughts? I felt like I did the test at the maximum bpm I was able to breath with nose only, a few bpm more and I would've had a hard time doing that. Any recommendation whether I should repeat the test targeting higher bpm or something different?
Breathing strictly through the nose isn't necessarily a great indicator for aerobic capacity. The heart rate drift test outlined here will give you a better picture of what your aerobic capacity looks like. I'd redo the test with mouth breathing and increase your starting HR by 5-6 bpm.
I also came back with negative drift, did you ever figure this out? I took lactate and it popped slightly from the 30 and 60 minute mark, this makes me think mid/fast twitch fibers turned on and skewed the results.
Is Training Peaks really necessary for this? Couldn't I just do this test on a treadmill and, once warmed up, take note of my bpm at beginning, middle, and end?
Joe-Good question. That probably wouldn't work as you need to know the running average and the trend of that average. You can use the free premium trial on TrainingPeaks. It's also possible that some of the apps from suunto or Coros may do what TP does, I just don't know.
@@UphillAthlete Thanks for your answer.
@@UphillAthlete Garmin's Connect app does have the ability to display HR data from recorded activities in chart form and it allows you to highlight sections to get the average HR for the given time period so you could use it in the same manner as displayed with TrainingPeaks for an indoor AeT test. While Garmin's app does provide a pace chart, I'm not aware of a way to overlay it with the HR chart so I don't believe you could use it for an outdoor AeT test unless I'm missing something.
Do you also get drift if you start with a higher pace, i.e. something that’s more closer to your zone three by chance
I just press the lap button on my Garmin after the warm up and then after 30 minutes. It shows you average heart rate per lap in Connect
What if the test last 1.20 h instead of 1 h ?
It does not matter if your test is 1:20, 1:14 or :52 minutes as long as you have a good long period where you are concentrated on producing the same pace (or power) over a prolonged period. With coached athletes we often can figure their AeT out from just a few zone 2 workout attempts. If you're not sure, just start with your low estimate and start working your way up into it.
@@UphillAthlete thanks a lot !, i managed to do exactly 1 hour test with roller skiing trying to be stable at 128 bpm: I recorded the time of the 1st and the 2nd half; 2nd half was slower by about 2,5%, so I will do the test again next week by adding 5 bpm to the heart rate and see it how it goes, is that correct ?
Hi Scott or Steve. I have performed the test today and took 150 bpm as my starting HR after 15 minutes of warm up. After 1 hour at a steady 6:00/km (9:66/mile) pace my HR drifted only by 1.31% after analyzing the run using TP premium. This seems very little to me, since the pace seemed quite fast to me. I was breathing nose in, mouth out, since I couldn't breathe only trough the nose. I used wahoo chest strap that I also use for my bike. Should I start at even higher bpm? And roughly how high would that bpm be? FYI I'm 24 years old and I haven't done any structured training, but I would say that I'm active (3x climbing training in the gym during the week and cycling/mountaineering/climbing during the weekends).
I know this reply is 10 months late, which means you have probably improved since your question. However to answer it, I would increase your starting HR by 5 beats to 155 bpm and see how that goes for you. If your drift is under 3.5%, you have aerobic capacity reserve.
@@AaronToponce is aerobic capacity reserve the same as ADS?
All my data is shown as PW:Hr not as Pa:HR
First thing to check is this: is the workout type a run or hike? It not change the workout type and you should see pa:hr
Can you drink water during the test?
Sure. As Scott mentions in another reply, execute the test like you do the bulk of your training runs. If you run normally with water, execute the test with water.
Do you guys ever deal with irregular heartbeats in some of your athletes? When I train for multiple days in a row (4 to 6 I want to say), I'll sometimes start getting double heart beats when I'm at rest. Irregular beats is apparently a thing in a percentage of endurance athletes as they age too, so I'm curious to know if you've seen any of this type of thing. Thanks for the vid!
Nicholas: I do know that many aging endurance athletes seem to get atrial flutter and atrial fib but I am not familiar with the double heart beat. But I'm not a cardiologist and it might be worth speaking to a doctor about this.
I occasionally get this weird heartbeat feeling at rest. Heart beat is regular then will suddenly do thump or double beat type of thing. I've had a few occasions of supra-ventricular tachycardia (SVT) from training since my teenage years training for swimming. I saw cardiologist and got given Tambucor to take if I had a SVT attack. Definitely best to see the cardiologist and get a stress test etc.
I used to have those kind of strange heartbearts. I began to suplement with magnesium and never noticed them again. It could be some kind of mineral deficiency.
@@luciusmodestuss It could also be a medical condition.