Yup. I would hazard a guess that they were taped due to injury.

When I was in competitive gymnastics when I was very young many of the teenagers had to tape parts of their bodies daily.

I also know that taping is used in dance, and other sport/activities, to ensure performance when otherwise it would be impossible. I fell down stairs a couple of years ago and injured my foot very badly the week of a big show. So, I taped the shit out of my foot so I could perform on it--without the tape I would visibly wince every time I put weight on it, let alone landed mutiple leaps on it. I performed on it, but was so injured afterwards that I couldn't dance for nearly a year.