Heart rate
5 lurkers |
300 watchers
Mar 2023
9:14pm, 30 Mar 2023
2,748 posts
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Flatlander
Thank you Canute You have inadvertently given me another answer - about why my blood circulation has deteriorated a bit over the last few years (slow healing and feeling the cold). The good news is that the statin I am taking to reduce the risk of CAD has benefited my Raynaud's, with fewer and less severe attacks. As I am sure you will know, statins lead to increased production and bioavailability of nitric oxide which is a vasodilator and allows better blood flow. I agree with you that keeping fit is a good defence against serious problems. When I was diagnosed, Rheumatology said that I was already doing the things (keeping fit and mobile) which would delay/reduce the impact of the effects of the AID. |
Apr 2023
11:33am, 1 Apr 2023
23,753 posts
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Dave A
Question on fuelling. Long run today. 3 hours. Decided for the first time whilst HR training to carry a race vest to practice fuelling on the go. Tailwind (which I’ve used before to drink) and a natural bar, nuts, fruit in it but nothing processed. Took the bar after two hours, struggled to keep my hr down in zone 2 without shuffling afterwards. Energy levels fine. Anyone else had this can of thing happen whilst fuelling? I know fatigue can play a part but on my last long run without fuelling I didn’t get any increase like this towards the end. |
Apr 2023
1:35pm, 1 Apr 2023
20,754 posts
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larkim
HR for me is always elevated if I run after eating a full meal, which I think is well understood - digestion raises heart rate. I guess may be the same for a high energy fuel being added too? As an un-scientific thought I'd wondered whether fuelling was one of the reasons that race day HR is often higher too. Can't help more than that though as I don't fuel on training runs. |
Apr 2023
1:55pm, 1 Apr 2023
1,038 posts
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Shades
My HR is higher too if I run straight after eating. DaveA - nuts aren't easily digested and maybe your fuelling coincided with cardiac drift kicking in so increase in HR was more noticeable. |
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Apr 2023
4:43pm, 1 Apr 2023
23,754 posts
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Dave A
My thought it was the digestion pushing it up. I’ve done uptown about 2 hrs 30 without fuelling before and not had that drift before. I knew I was going to be out for 3, need to make sure what I carry works, so are something.
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Apr 2023
4:54pm, 1 Apr 2023
1,039 posts
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Shades
Sports drink, gels or sweets would probably not affect your HR so much.
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Apr 2023
5:14pm, 26 Apr 2023
46,506 posts
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HappyG(rrr)
Hello. Is this the right thread to ask for an explanation about the current studies into the effect on the heart of marathon and longer distance training and racing? Specifically is the risk of calcification or any other inherent heart detriment greater or worse than the benefit of activity on the heart generally? My simplistic summaries are: * Moderate vigorous but not extreme activity (e.g. up to half marathon distance, more easy running, less racing etc.) unequivocally beneficial. * Greater than this (jury is out as to where, but say marathons and beyond, multiple races, lots of high intensity and long duration training), then calcification is known to increase. But does this outweigh the benefit of an otherwise generally healthier heart? I suppose I'm looking for a conclusion as to *net* benefit or detriment. Looking forward to being educated. Love,  G
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Apr 2023
5:15pm, 26 Apr 2023
46,507 posts
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HappyG(rrr)
Sent by Chrisull Chris and hoping Canute Canute will jump in. I have read most of the posts and articles, I think, but so has Chris and he differs in his conclusions and interpretations. I may be being very thick! G
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Apr 2023
9:12am, 27 Apr 2023
2,661 posts
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Canute
Observational studies show that life expectancy increases with increased life-time aerobic training, but the rate of increase in benefit decreases and eventually ceases to increase after many years of high volume of running. A few studies report a decrease in life expectancy at very large life-time volume of exercise, but those reports are strongly debated because of small number of individual and the possibility of bias in selection of data. Many studies report an increase in atrial fibrillation (AF) in males after several decades of exercise. AF predisposes to stroke, but whether or not the other health benefits of running outweigh this risk is unknown. Multiple studies show increased calcification and atheroma in coronary arteries after many years of marathon training. Until recently it was believed that the atheroma in athletes were more likely to be stable and hence less likely to disintegrate and block the blood flow downstream, but a recent study reported increase of both stable and unstable types of atheroma in males with a high training volume compared with sedentary individuals. My personal conclusion, based on understanding of the mechanisms of likely damage: if you want to do heavy training for many years, ensure that you include adequate rest and recovery in your programme. I will do a blog post on this soon. |
Apr 2023
11:16am, 27 Apr 2023
14,772 posts
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jda
Looking at his RBR record, it looks like the recent London fatality used to be a 3-marathon-per-year runner, recently returning after a long pandemic hiatus. Based also on his times (sub 2:40 at best) I'd guess probably training at a bit higher commitment than most of us but not massively different. However I'm not feeling bad about my habit of doing about one marathon per year with a handful of shorter races and a largely fallow summer season (cycling, but that's generally lower intensity). |
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