Chicken or egg? Propeller or lead?

Driving in today I saw a woman out walking for exercise wearing a baseball hat with a propeller on top. I thought – hmm, she has a jaunty attitude. (Wow, those sarcasm anonymous classes are working!) Then I noticed that she was also using Heavy Hands weights as she walked.

The question dawned on me. Was she using the weights to keep her from flying up and away, or was the propeller to help lighten the load of the weights?