I haven't done any running in over a year. Today my daughter asked me to do a 15 min run with her so I did instead of jumping. I expected to do maybe half a lap. But no. I did 5 laps! I went at an easy pace and walked the top part of each lap but still.....with a warm up and cool down lap I did 2.08 miles in a little over 30 mins. I credit jumping rope for that. I am so pleased!