u/CormerLad

I'm doing some handstand shape transitions and when I go from tuck->straight->straddle I notice that my legs get considerable bend, especially when I go from an open straddle to a closed straddle position.

The thing is that I swear I was flexing my quads as much as I could to try to straighten my legs, but on filming I realised that wasn't the case!

Are there any cues or anything to get my legs straight? I also notice a microbend when in a straight handstand, but it's nothing like the closed straddle.

I'm reading up on a paper called "Know your faults", written in 2001. I'm on page 36 and there's a section I can't get my head around for the life of me!

https://preview.redd.it/iyt3wtooep8h1.png?width=582&format=png&auto=webp&s=c18ce15e624276ba33a4ef4e5722f243a4da0019

We have this image and as you can see it's looking at some maximum (or accumulated) displacement data for faults compared to their fault length, but off to the right we see a bar for "slip in earthquake" where we're looking at the incidental displacement compared to fault length. This is all empirical, so we see that for singular earthquakes the amount of displacement is far less compared to the fault length as opposed to when we're looking at the accumulated displacement data.

What the paper says is: "When plotted together, the incremental slip values in earthquakes form a quite separate group from the accumulated slip values on geological faults. A consequence of this separate is that, in general, faults grow not just by increasing their displacement through repeated earthquakes, but also by increasing their length. Faults that retain a constant length would not produce the observed proportionality between accumulated offset and length. Such a fault that start ab initio with length 10km would move ~1m in its first earthquake and gradually accumulate offset in 1m increments with time. Yet what we observe is that faults 10km long that move in earthquakes -already have- accumulated offsets of order 1000m*. Thus we conclude that big faults grow from little faults."

[*This is in reference to an earlier image which shows a fault that has a length of 12km that has moved 1m in an earthquake, with a total offset of 500-1000m]

Specifically the lines "...consequence of this separation..." and "...yet what we observe is..." are confusing me. I can visualise the fact that as earthquakes occur the faults may grow, but I cannot seem to follow it from the reasoning. How does the information they've specifically provided here lead to that in the way they're saying?

I'm not sure if it's the way this is worded or if I've just been reading it for too long; I'm a beginner when it comes to geology so this is all a bit new to me.

Thank you