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THREAD: I put this together as a way to help visualize kinetic sequencing a bit easier. Thanks to our mocap assessment I’ve spent a lot of time looking at athletes sequencing and its importance in both health and performance, so I’m going to break it down for you a bit.
First, sequencing is just a transfer of energy up the chain from ground < pelvis < torso < elbow extension < shoulder IR. If done right these rotational velocities get a significant jump from segment to segment.
The initiator of this all is the CoM as it drifts forward and pushes downward. This begins storing kinetic energy in the post leg that we then apply to the ground. The ground returns that force and thus begins pelvic rotation. Attached vid has some notes to make following easier.
For me this is the most important piece in creating proper sequencing. If the timing of the pelvis opening into foot plant is off, we won’t be able to utilize the lead leg and maximize the rotational uncoiling of the upper body.
When the lead leg hits, if the pelvis has opened enough, eccentric braking forces begin driving energy up the chain. Pelvis rotational speeds (~761.9°/s) spike around foot contact and are maximized slightly post by athletes with good blocks.
Torso rotational velocities (~1,226.4°/s) then spike on average, in our lab, .05s post peak pelvis angular velocity. Have fun trying to see that timing with your iPhone. Note, we’ve already had a sharp increase in velo from pelvis to torso.
Next, as the torso peaks the elbow starts to extend (~2,511.9°/s). It’s important to note that as one area peaks the next should accelerate at about that point. Seeing when things begin to decelerate and how that breaks down can be key for determining inefficiencies.
Lastly, the shoulder starts to internally rotate with the highest velocities of all (~4,671.6°/s). From there that energy is imparted on the baseball and you either throw a cambio (94.9mph and below) or fuego (95 and up).
To round it out I wanted to share a really good sequencing graph from our lab and a really poor one. Both have some room to improve, but you should pretty quickly notice the differences here and why one is throwing cambios and one fuego. For reference both are MLB pitchers. 
