I don’t know if I’m unique in this respect, but I have trouble juggling my prayer life and my physical fitness time. So, I developed what I call the “Treadmill Rosaries” which I pray using my smartphone.
I also developed what I call the Apologetical Rosary decades. These are ways to pray and exercise while you study how to respond to common objections to the Catholic Faith.
I hope these are a blessing to you.