Hi Julie-Ann ! Basically, kinesiology is the study of the body in motion, so it plays a big part in sports and exercise, however it also goes into other lesser known aspects of human motion, like designing light switches that are easier for the older population to use. This is actually a case that one of my professors went into in one of my classes - it was discovered that senior citizens were having trouble manipulating their light switches with joint problems that occur in the elderly, so kinesiologists decided to develop switches that were easier to use. That is how the big, flat wide light switches in homes built today came to be, versus the smaller protruding stick switch used as recently as 10-15 years ago. They weren't developed as an "up-grade" for home buyers, but as efficiency tactics for the elderly.
That is just a quick view of kinesiology - or the study of the body in motion. I have decided to take your advice and write a hub about it and will shed a little light on the subject to anyone else wishing to know more !! Thanks Julie-Ann !! Paige