So I thought it would be interesting to analyze the effect of time on the movement of a subject during just over an hour of crucifixion.

This is from the Cruxdreams' clip featuring Jenia titled "Agony on cross after birth". You can watch a few seconds here: https://www.redgifs.com/watch/afraidvalidelver.

The movie is packaged as 14 clips - I sampled number 2 (the first 5 minutes) and number 14 (the last 5 minutes). I categorized the positions she adopted, and scored the amount of time she spent in each. There is some significant judgement involved, as she is moving a lot.

The categories I used were:

'upright' - legs as close to straight as possible, spine closely aligned with the vertical.

'hanging' weight held on the arms, body limp.

'right' and 'left' buttocks significantly to one side of the vertical.

'arched' - I am a little conflicted about this one since it includes the fully arched position, with hips and shoulders forward, and the 'half-arched' with shoulders forward by buttocks resting against the vertical. I think maybe I should have separated these out.

'movement' is a calculated field based on the total scored time in positions subtracted from the amount of time in the clip.

You can see the scoring key and the raw data here: https://imgur.com/a/PgxaH0U.

Here is a chart of the data:

https://imgur.com/a/0YTJ38u.

There are some quite striking findings:

1. She spends much more time in the upright position, and the hanging position in the first clip. I think the the upright is by far the most comfortable position for her, but of course also the most exhausting. The hanging position is probably also relatively comfortable at this point, and her arms and wrists are not yet painfully strained. By the last clip she spends virtually no time in either of these positions, most likely because they are too exhausting (in the case of upright) and painful (in the case of hanging).
2. She strongly favors hanging to the left side over the right both early and later. I'm not exactly sure why this would be, but I suspect it is to do with being (probably) right handed and having more strength in the right arm. Regardless, the small amount of time she spends hanging on the right side does not change over time, while the amount of time she spends hanging on her left more than doubles.
3. The time she spends in the arched positions (both fully arched and half-arched) dramatically increases over time - by more than a factor of 4. My suspicion is that as she begins to get exhausted this is one of the only positions she can maintain that takes at least some pressure off her arms and gives some easier breathing. While it is clearly painful, it is likely less stress on her arms than fully hanging. While it is clearly still exhausting, being able to lock her knees most likely makes it significantly more bearable. Shifting between the full and half arch likely changes the particular stresses, offering at least a few moments of relative relief.
4. The amount of time she spends in movement more than doubles over her hour. It's clear that the amount of respite she gains from each change in position declines over time as her exhaustion and pain grows, causing her to have to change position more frequently, which of course contributes further to her exhaustion.

I hope you find this interesting - it gave me a little more insight into the experience.