This is one of a series of muscle movement videos we shot.
I found it difficult to find much of this kind of moving reference on the internet.
I thought they would be of interest to studiers of anatomy, riggers and sculptors etc. They are not shot in perfect synch. but are roughly lined up and in some cases Time stretched so you can see the different views at Approximately the same time.
If I get enough interest, I will post more, and if I get any tip jar funds i might be able to afford to hire more models with different body types etc. maybe draw some wireframes on etc.