CMC 37P TAI CHI FORM: Posture 37, detail

Cheng Man-ch'ing 37 Postures Tai Chi Form
http://youtube.com/watch?v=VeFpu3cDcUY
http://youtube.com/watch?v=wvNVQRlIs6Q
http://youtube.com/watch?v=Vxptpyw0SCI
http://youtube.com/watch?v=8P-ZCG1ysDo
Posture 37: Bend Bow & Shoot Tiger
Detail: level of right fist
Front view - 3/1/14 (Winter)

In this video I am demonstrating that when the right fist is not raised as high as the right temple during "Bend Bow & Shoot Tiger," the right collar bone can remain level / horizontal.

If one stands in front of a mirror without any shirt, one can easily see that it's quite difficult, if not impossible, to raise the right fist to the level of the right temple without tilting the right collar bone upward, away from a level / horizontal position.

When the right fist is not raised as high, the right collar bone can remain level. I suspect that is why as an older man, Prof. Cheng did not raise his right fist to the level of...