At WCPT we were neighboured by the Muscle and Motion stand which provide an online interactive 3D anatomy and strength training learning tool. A lot of work has gone into developing this dynamic visual resource that makes musculoskeletal anatomy and kinesiology easier to learn, remember and understand. What is great is that they also have a YouTube channel where some demos of their software can be accessed for free. Not only that but it can be embedded into Physiopedia. So, if you are looking for video imagery of muscle anatomy or exercises to include in your Physiopedia article be sure to have a look at Muscle and Motions YouTube channel to see if there is anything that is suitable for you to use.
See this example below..