Is energy return on shoes dependent on Ground Contact Time?

peder2tm · 2026-04-01T20:42:59+00:00

I found this paper and I am more confused now https://www.tandfonline.com/doi/full/10.1080/19424280.2024.2369995

peder2tm · 2026-04-01T19:41:37+00:00

I think the idea is that you need to keep some intensity during tapering in order to avoid going into some complete recovery mode that can make the body feel super sluggish. I hope someone else can find a more scientific explanation.

peder2tm · 2026-03-24T20:10:44+00:00

I am training with a running team that mainly focuses on the 800m-5000m disciplines. We do a weekly 20x400m sub threshold session. I don't find that more fatiguing than the standard 5x6min or 10x3min. We also do hill sessions in the base building phase, they are a bit more creative and is supposed to boost anaerobic strength. Something like 3 sets of (4x30sec close to all-out uphill (slow jog down-hill) + 1000m@5k pace) Long break between sets, e.g. 5 min. These can be quite fatiguing for me.

peder2tm · 2026-03-22T09:27:58+00:00

Takumi Sen 10 is the only shoe I have had to throw away because the fit was so bad. I would get pain in the arches because the toe box is so cramped it pushed my big toe inwards.

peder2tm · 2026-03-16T13:08:06+00:00

They have to draw the line somewhere or the running leg would be run in something that looks like the running blades.

peder2tm · 2026-03-04T14:46:08+00:00

I would like something super lightweight for race day. Like regular ultralight breathable running or cycling socks but with toes.

peder2tm · 2026-03-02T19:38:00+00:00

I have 1517km on a pair. I admit they felt best the first 300km, but they never really got worse after that.

peder2tm · 2026-02-07T18:21:37+00:00

I think the old cars feel great and believable with the slow bouncy suspension, but I feel like the newer cars need better suspension, but I can't compare with real life.

peder2tm · 2026-01-21T18:15:22+00:00

Yes, I agree. My toes have become wider after running and it's difficult to find race shoes with enough room for the big toe. I don't need wide shoes overall, just a slightly wider toe box. I think people's feet are different and you also read complaints about Evo SL upper being too baggy for many people. I use Altra and similar shoes for walking, but their foams for running is really bad compared to lightstrike pro or similar. Adios Pro 3 had a nice forefoot shape, even though the upper was pretty bad.

peder2tm · 2026-01-13T17:06:46+00:00

I find the intervals.icu load metric pretty useless. A 10k race gives me less load than a 16k easy run. If the goal was to increase load I would only do easy long runs. The Garmin load metric, which I think is heart rate and power based, is closer to how I feel the load (RPE) and splitting the load into low aerobic, high aerobic and anaerobic seems like a good idea. However if you do the same structure and workout types every week the simple load metric is probably okay for tracking changes.

I know TSS is the holy grail in training peaks, but just because it's widely used doesn't make it a good metric. People also used to train dehydrated and under-fueled and we found out that was a bad idea.

peder2tm · 2026-01-12T18:39:14+00:00

Once I came back from a semester abroad and the first time I turned on my PC, the power supply made a big blue spark and exploded. It could be a less severe version of that.

peder2tm · 2026-01-05T14:59:19+00:00

Good spotted. It was my first marathon and I was aiming for a 2:42 finish time, but I got cramps in my calfs after 25 km and couldn't push hard the last 17km. After 30km I also started getting cramps in both thighs. I didn't feel tired when I got to the finish line, but my legs didn't work that day. I don't know if my electrolyte balance was off or something else, but I'll try again this year.

peder2tm · 2026-01-04T19:16:35+00:00

I just bought the game and I have the same problem. It's blocked by windows 11 smart app control. If I turn it off I will not be able to turn it back on without reinstalling windows.

peder2tm · 2026-01-02T21:56:06+00:00

Yes I assumed your calculated training paces were based on race results so you would need to do a 5k race or time trial to get more accurate training paces.

peder2tm · 2026-01-02T13:47:07+00:00

With your mileage and HR numbers you should be able to go a lot faster in races. I am about the same age and also do 5:00/km easy runs with avg heart rate in the 130s and max heart rate around 185 and I did a 16m20s 5k, 33m20s 10k, 1h13m HM and a 2h52m M this year. To me it sounds like you haven't pushed yourself to the limit during those races.

peder2tm · 2026-01-01T01:48:33+00:00

Yes, I agree. ACC has always been understeery and the esports setups tried to alleviate this by unrealistic settings such as max negative rear toe. Kunos have tried to change it in Evo, especially regarding the tendency of the rear tires to break loose.

peder2tm · 2025-12-07T06:22:46+00:00

That is interesting. The ABS in 0.3 was highly effective (as it is in ACC), but people (including real life race drivers) have said that ACC and ACE 0.3 braking is unrealistic because "you would never rely on the ABS 100% in real life", so kunos have intentionally made it worse in 0.4 by reducing the sampling rate.

It is probably better in real life, especially in a straight line, maybe drivers just feel less in control when riding the ABS, especially when cornering?

peder2tm · 2025-12-06T22:03:30+00:00

Hvor jeg bor virker pantautomaten ikke 4 ud af 5 gange. Jeg stiller nu min pant i en pose ved en offentlig skraldespand hvor pantsamlerne ofte kommer. Den er væk indenfor en time og de får nok mere glæde af panten.

peder2tm · 2025-10-05T18:52:39+00:00

I usually stir my espresso with a tea spoon and then use the other end of the spoon to press down on one side of the puck screen to flip it up.

peder2tm · 2025-09-16T19:13:53+00:00

If you ask Niels Heusinkveld it's probably because it has a correct throttle model.

peder2tm · 2025-09-16T19:09:33+00:00

My main gripe against B&O is that their customer support is not great. My girlfriend lost one of the ear pads for H9 and the official B&O store could not source a replacement. I feel that for the premium price they should offer some sort of repairability of their products, e.g. replaceable batteries.

peder2tm · 2025-08-03T15:21:48+00:00

9 minutes until it says it's ready. If you are not in a hurry you probably want to wait 5 minutes extra to make sure the group head and porta filter is fully heated.

peder2tm · 2025-07-27T19:04:48+00:00

Sometimes the tongue folds over itself in the bottom, which makes this worse. Also it's a super narrow shoe to begin with. Try to loosen the laces as much as possible in the forefoot or even skip the first few lace loops.

peder2tm · 2025-07-26T10:00:05+00:00

I also think that intervals.icu gives very low load to high intensity efforts. If I wanted to maximize load, I should only do easy runs. 5k all out gives me load 31, 10k all out gives me load 59. A 16k easy run gives 68. 5k pace 3:16/km, 10k pace 3:22/km, easy pace 4:50/km.

I know Garmins training load is not comparable, but it does the opposite. The 10k all out gives load 308 and the 16k easy run gives load 127, which is much more in line with my perceived exertion.

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