2015 Running Thread Part Two

[Tiredemma]

.... apologies for lack of original title

4 miles tonight

1378.35

Yes I have read them and like Suzanne no.chance of me getting up to 7mph, I plod along at 10mph!

That looks fabtired I have some practically brand new running.tights that don't fit me, will see how to send them to them :)

?
It's probably bollocks / bad science, I am not going to change my running plans on the strength of it!

10mph, wow 5madthings!!

I just think it's a hell of a study to figure that optimum for everyone is max 3x per week at 5mph with 1-2.4hrs total. Nice to see everyone needs the same to stay healthy

Cinnamon yep, I read that this morning. I find it really hard to run at 5mph, they recommend 8 in the article. Around 6.7mph is where I'm most comfortable running for pleasure, but apparently that is too fast.
5madthings 10mph isn't exactly plodding, that means you can run a marathon in 2H36m
9 from me and the club session tonight. Knee still hurting but once warmed up it is better and I managed 4200m of intervals, just not as fast as normal.
Hoping to see an osteo/physio/sports doctor soon.
206.24

Lol I meant a mile in ten mins! Which is slow but a pace I can maintain. God imagine running ten miles in an hour!

Ha, madthings I read your post and thought ' wow, she must be really fast at 10mph.. I can barely do 10 kph....!'

this article discusses the issue in more depth www.ncbi.nlm.nih.gov/pmc/articles/PMC3538475/

'long-term excessive endurance exercise may induce pathologic structural remodeling of the heart and large arteries.

Emerging data suggest that chronic training for and competing in extreme endurance events such as marathons, ultramarathons, ironman distance triathlons, and very long distance bicycle races, can cause transient acute volume overload of the atria and right ventricle, with transient reductions in right ventricular ejection fraction and elevations of cardiac biomarkers, all of which return to normal within 1 week.

Over months to years of repetitive injury, this process, in some individuals, may lead to patchy myocardial fibrosis, particularly in the atria, interventricular septum, and right ventricle, creating a substrate for atrial and ventricular arrhythmias.
Additionally, long-term excessive sustained exercise may be associated with coronary artery calcification, diastolic dysfunction, and large-artery wall stiffening. However, this concept is still hypothetical and there is some inconsistency in the reported findings'

4 miles tonight on the treadmill so 210.24

Thanks for the link Tiredemma I work in a large team many of whom run and I suspect a lot will donate running kit when I share the page.

... and I nearly ran away from the thread when I thought you were all running at 10mph

Thanks for the website Suzanne, I'll check it out. I love my current trainers doesn't some equally comfy.

're bras I have shock. Absorbers, I'm a 32/34 f/g and generally wear the same size. Different styles fit differently though so i had to try lots on and jump up and down in the changing room...highly amusing but I don't want wobbling boobs when I run.

Feeling really annoyed with myself. Eaten well all day, went to a gym class then ate a wedge of Christmas cake. Its nowonder m y weight isnt decreasing since restarted running and joined the gym when i keep eating Christmas cake!!

So I make 10mph a 6 minute mile?

I know a few young whippersnappers who do a 5, pushing 10k at that speed but they are not representative of the running community I am part of!

And the conclusion seemed to be that if I could maintain that speed that makes me as likely to die of running as someone who doesn't run at all .

So the choice is run fast (if you can) and die?
Or don't run and die?

4.5 riverside miles under a full moon.

Not at 10mph

214.74

So the choice is run fast (if you can) and die? Or don't run and die?

No I don't think so, scientific studies are routinely misinterpreted by the media who are just looking for headlines and dont question the validity of the study.
There is no consensus about what is optimal in terms of exercise and a little googling will bring up studies to support or contest any theory that you'd like to come up with.

Here's a blog post about the study
www.forbes.com/sites/larryhusten/2015/02/03/no-too-much-jogging-probably-wont-kill-you/

and here are the actual number of participants
www.cardioexchange.org/wp-content/uploads/2015/02/jacc_ci_021015_schnohr.jpg

the strenuous jogger group comprised only 40 people of whom 2 died, hardly a statistically significant sample size!!

It is something which concerns me because I find prolonged endurance exercise very addictive and I am aware that there is evidence that, beyond a certain level it can put too much stress on the cardiac muscle.

Thats one reason I use a heart rate monitor while running, so I can keep my heart rate down in the (hopefully) safer zone.

I think it is misleading to give 7mph as a cut off point, for someone like me that speed would correlate with a very high heart rate but for a good runner it could be a cruising speed which has the heart rate in a lower zone.

Then again even slowish jogging leads to a cardiac output way higher than resting rate so it may be that running excessive mileage can be harmful even at slower speeds

Excuse my paranoid ramblings

Thank you so much for finding the links re the 'jogging will kill you' thing. Interesting, reassuring, and means I will have something to say when I get the inevitable comments from the in-laws and my generally lovely but weird about exercise neighbour.

ooh shall I ask more or less to do a bit on the research findings and reporting then? especially as I do run while listening to their podcast

do you have the ear of some one who works on 'more or less'?

then again wouldn't it be more of a Ben Goldacre subject?

I don't I'm afraid, but I am a big fan. I would be overexcited to be in touch with them. I might leave it to someone more sensible.

Do it still!

Forgot to post my Monday night run (v late after loads of marking) in the cold (had to wer gloves) did 3.5m so 218.24

Oh dear- I'm dead then. My 1 hr treadmill pace is 7.5mph, although I obviously get nowhere near that on the trails - more like 5-6mph due to rocks, roots, scrambles and huge porcupines (not many porcupines, but I do like it when I see one). I dont use a HR monitor but the fact that I sustain 7.5mph for 8 miles makes me thnk my HR cant be that high [fishes for reasons not to expect premature death].

I love Ben Goldacre- I know some people think he's a smug bastard, but at least he's even handed in dishing it out (woo mongers and big pharma, for example) and it does make me think about cause and effect vs. correlation a lot more.

Actually I guess it depends what the 2 people died of as well. If they were in a car wreck or skiied off a cliff, it's not really significant, is it?

?A sample size of 40 people isn't statistically significant so what they died of is neither here nor there.

Even so it remains the case that excessive endurance exercise may do more harm than good, question is at what point should it be deemed excessive and why.

Most folks don't exercise, very few do the amount that a dedicated runner would so we just don't have data on a large enough sample of people to come to any meaningful conclusions.

(there is an article in Runners World on the news story) ?