Is he electrifying his legs?
So, on Twitter, I found the post with a video that shows the spec ops soldiers' exercise:Apparently they’re field testing (or just using) something that translates roughly to “pain-experiencer”, and those pads may be part of the apparatus, using electricity to let the user feel pain when activated. From my understanding they’re used to provide some degree of pain when one’s deemed injured or killed in an exercise. The goal is to add some additional realism to the experience
edit: in post #3835 there’s a picture of this apparatus in use. You can see a white pad on the soldier’s forearm, quite similar to what we see on the calf of the soldier in post #3840
And I found more of those pads:
And according to an interview with one of those soldiers at around the middle part of the video and the picture that was posted before (I couldn't believe I missed that caption lol), he said that their arm spasmed and that their upper body felt pain. Logically, he is most likely referring to the "pain" caused by the pads which were activated via the MILES-like receiver. This is extremely interesting and important since this shows that the Chinese are overhauling their training, which, Im sure we already know at this point, is extremely important for high performance in combat.