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Where Should I Stand on an Escalator? We Indians learn and adapt quickly, especially when someone explains the reasoning behind rules. With that in mind, we're starting a new series on basic etiquette in public space. Today, let’s talk about escalator etiquette. While you can technically stand anywhere—left, right,...

123,420 次观看 • 1 年前 •via X (Twitter)

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👀Connecting your coaching eye to your clinical reasoning! Observe the leg cycle of the leg closest to the camera on each drill. Can you see small medium then big elliptical on the right limb and very limited ones on the left? What does limb movement and synergies say about muscle properties and pelvic structure ? Does “technique” matter? Well only if you want to load specific tissues and create protective system tension. We had a really interesting 10.6 sprinter with repeated right side hamstring strains over the past year join our hamstring workshop. UPMC Sports Surgery Clinic 💪🏾Isokinetic tests have him really really strong on both limbs. 🔋Emg told a story of right side dominance and good lateral to medial hamstring balance whilst the left side was far more imbalanced with medial hamstrings dominating action that we assumed the lateral would. 🧐When we went on to the track, we saw similar things. 🚩Notably a reluctance to open up into late swing phase, avoiding long lever eccentric stress on the distal hamstrings…. ON THE LEFT LEG! Well this was noticed across a range of exercises velocities and complexities. 🏃🏾‍♀️ Drills with speed and locomotion, static fast drills as well as static slow drills. 🧐Movement illuminates structural qualities. 🧐Can you spot the difference in these two leg cycles? Could it be that the right side is repeatedly hurt due to the deficit in the left side. After all, if you can’t integrate late swing phase, then you will have poor negative foot speed. You will be able to accelerate…. But all the work will be on the right side the deeper you get into a sprint. Ed Mias Sportsmith

Jonas Dodoo

14,272 次观看 • 1 年前

Here's an excellent video from Florian (follow) that shows charged water on the left and neutral water in the right. This is a visual confirmation of two known effects; Electrostatic induction and dielectric relaxation time. Electrostatic induction is like when a hair-rubbed balloon sticks to the wall, despite the wall being neutral; the balloon causes charges in the wall to polarize so the wall side near the balloon turns negative and the other side of the wall is positive. That's electrostatic induction and that's why you have raindrops that stick to a car window for hours of wind and gravity, rain has a small negative charge. Wouldn't work with tap water. Now, if you remove the balloon, the wall doesn't return to a neutral state immediately. It'd happen quickly if we had a balloon on the other side of the wall, but by itself this can take seconds, minutes, hours or even days, depending on the material and thickness. Glass is quite slow, and you can see the electric forces holding each other will hold off gravity for some time; and that the water greatly prefers not to be broken off, water is like an uncountable number of those walls in series, and they all cling to each other in proportion to how many balloons we have, ie how many excess electrons we have. Furthermore, when the water is extremely charged, it will not even leave the thin remnant layer of water that trails behind, as the cohesive internal forces outweigh those by induced to outside neutral surfaces.

N'Golo⚡Wizard.Talk

22,198 次观看 • 1 个月前