I am looking for a sci-fi novel about people moving their consciousness into other persons, 'swapping' so you can experience others lives, then getting trapped into anothers body, and trying to get back original body, being able to experience first hand others' experiences, and plot twists such as a female arm wrestling a male and winning a bet.
This sounds a lot like the novel "Hopscotch" by Kevin J. Anderson.
I don't specifically remember the part about arm-wrestling. But, the basic premise definitely fits:
"Suppose you could switch bodies with another person? What exciting new experiences would you choose to explore? What forbidden desires would you indulge? Suppose someone stole your life-how far would you go to get it back?"