"Suprize yo thighs wid exercise" -Reann Roque

So two days ago I just picked up jump rope as a new exercise and it's really good especially when my body was getting bored of the elliptical. Although after jump roping my knees hurt like a beeetch. So I googled on how to avoid it and I found out that you don't lock your knees while jumping...fuck...I'm a dumbass.