Morning Icloners.  Here's an overly long tutorial to create an injured person walking while another person supports them with a hand around the waist and at the elbow.  Includes the use of reach targets, motion puppeteering, direct puppeteering and a few other techniques.  There are mistakes as we go along but they are corrected and I eventually get the results I was looking for.

The reference film, "Perchance to Dream", is here: 

P.S. I'm suffering from allergy season and you can hear the coughs and sniffles in glorious HD.  Sorry.