cool vid.
My lower leg form base of heel to top of calf, measured with a 90 degree knee bend is about 33cm. From base of heel to bottom of calf, hence top of achilles, is 19-20 cm. Heel is 2cm. so my achilles length is about 17-18cm, and achilles + calf = 31cm.
I don't know how that stands with averages, but I definitely don't have extremely high calves like someblack people, but definitely not low calves. They're somewhat high though.
And my one footed jump has a huge knee bend almost like a lunge
But I've seen other black people jump with less knee bend so i don't know. Sch as james white