More efficient running style
183 watchers
Jan 2017
10:02pm, 30 Jan 2017
1,796 posts
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Canute
Thanks for posting the runscribe output. Does your statement about adding or taking the various measurements out of the graph mean that you can display the variation of each of these measured variables continuously (averaged over a selected short time window, eg 5 sec) throughout the duration of the run? This could be very useful in monitoring progress with developing ability to resist fatigue during long runs. I presume the two blue lines show the variation of footstrike type throughout the run. What does the footstrike number mean? I was interested to see that braking Gs were very similar to impact Gs. I presume this reflects the fact that this was a long run with relatively low flight ration. I would expect impact Gs become higher and braking Gs lower as you increase flight ratio. |
Jan 2017
10:22am, 31 Jan 2017
23,483 posts
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SPR
Not sure whether the numbers actually correlate to a measurement but assume 0 would be the biggest heel strike while 16 would be up on toes. I found it interesting that my L R foot strike is different. You can indeed the variables as described. None of this is available while running though (which I think is a good thing), you upload after. Next time I do sprints I shall see how impact Gs compare to braking Gs. |
Feb 2017
6:17pm, 4 Feb 2017
3,858 posts
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Kieren
Interesting graph SPR. Have you tried it on something flat like a track, ie without cambers and bumps and if so, were results different?
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Feb 2017
6:55pm, 4 Feb 2017
23,496 posts
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SPR
Only got it recently so no.
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Feb 2017
7:00pm, 4 Feb 2017
3,859 posts
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Kieren
Certainly looks interesting. I wonder if they could estimate power when tied to the GPS data. Enjoy the new product
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Feb 2017
10:58pm, 6 Feb 2017
23,502 posts
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SPR
runningunraveled.com Found this interesting. Cadence slightly lower but GCT lower and flight time high for the same pace. |
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Jul 2017
7:38pm, 16 Jul 2017
1,800 posts
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Canute
Sorry, I have not been on Fetch for many months: as explained on my blog, I have a puzzling illness. I had not seen SPR’s link to the ‘runningunravelled’ site until today. It is very interesting. It is no surprise that elites have short contact time and high flight ratio, but the interesting thing is the statement that their impact and braking Gs in the same range as us mortals, 11 to 12 Gs despite the shorter ground contact. One might expect higher impact and lower braking forces with shorter contact. Perhaps apart of the answer is the relatively low cadence at these ‘easy’ training paces. This implies longer stride achieved with forces similar to those exerted by non-elites. However, evidence indicates that recreational runners often benefit by increasing cadence, so it would be unwise to try to emulate an elite simply by increasing stride length SPR, what has been your experience with runscribe since Feb? |
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Jul 2017
7:35pm, 18 Jul 2017
24,476 posts
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SPR
Canute - Hope the illness clears up soon. I did two races with it in March/ April and it was interesting to see that I landed more rearfoot then than at easy paces in training. Over the last few months my left foot now lands more forefoot than it did in the screen shot I posted. Interestingly run I posted the screenshot from was a couple of days before I had an achilles injury so the further back landing may have been a sign that it was coming. I injured my right foot recently (midfoot sprain, not 100% sure how as it came on suddenly and not while exercising but I think from jumping exercises as they were the only recent addition to my training) and I'm landing more towards the rear of my foot as I come back (not consciously) even though it's still midfoot. I generally get lower leg injuries and I wonder if the high pronation coupled with high speed of pronation is a factor (as shown in the screenshot. Not looking to actively change this but as part of my foot rehab, I'm using a rocker board exercise to work on strength and control in the foot/ ankle on both sides |
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Jul 2017
10:32pm, 18 Jul 2017
1,801 posts
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Canute
SPR thanks for the update on runscribe, and sorry to hear about your foot injury. The rocker board exercise sounds sensible It is interesting that you observed a shift towards rear-foot landing shortly before the Achilles injury. As you say, this is likely to have been a pre-emptive but unsuccessful unconscious attempt to reduce the loading of the Achilles. It is consistent with the evidence that overt injuries arise from continued stress on a tissues that is beginning to fail, and raises the possibility that regular quantitative monitoring of gait with runscribe might be a useful way of detecting impending injury. Is it practical to record foot dynamics as a regular routine during training? |
Nov 2017
12:49pm, 24 Nov 2017
14,061 posts
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Fenners
While out running long I thought I'd share my thoughts gathered over the last twelve years with respect to running efficiently. NB. this is for endurance athletes not sprinters. 1. Land with a bent knee 2. Try to activate your glutes (a large majority of runners don't) 3. Elbows back Everything else doesn't matter or is a product of getting the above correct e.g. cadence |
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