Early Cineradiographic X-ray studies of Joint Movement

This amazing video is from Wellcome Film and is from 1948.

The introduction text lasts around 2 minutes and then it is straight on with various joints being moved in glorious grainey black and white X-ray film.

I do hope that one individual wasn't the subject for all of these movement studies.

I find it interesting that the 1948 introduction does suggest that prolonged exposure to x-rays is known to be dangerous and yet X-Ray Fluoroscopes continued to be used in UK shoe shops into the 1960's. I remember being fascinated by the one in the Clark's that my mother always took us to.