I've been a bit busy lately with another project of mine, so I have been slacking a little when it comes to this blog. There isn't much substance to this post, but it's better than nothing.
This is another video that was filmed, edited, and produced by Dr. Marshall's students. It shows several of them performing some of Dr. Marshall's more unconventional training drills. In the video, they throw javelins and bucket lids.
The video quality isn't spectacular, and its producer added some background music (as well as a lengthy credits sequence at the end). I'd suggest muting the video, but then you wouldn't hear the commentary.
The pitchers perform the same exercises that they performed with the wrist weights and iron balls. The projectiles in this video are lighter, though not quite as light as a baseball.
These drills are more about neuromuscular fitness - joint action timing and sequencing or "muscle memory" - than they are about strength and durability. If I understand correctly, they are used to help learn and "perfect" Dr. Marshall's motion rather than to maintain it.
The bucket lid drill, designed to teach the appropriate axes of rotation for pitched balls, seems like it would also provide a decent "report card" for the release and spin of each pitch.