Negative ape index There are also cases of short boxers who possess an extraordinary reach. Trying to make those jumps from a different angle is much harder than when I just have to jump upwards rather than up and out. If, like in the ratio example, the wingspan is 175 and height is 170, the ape index will be 5 (175 – 170 = 5). And, above all, it shouldn’t deter prospective climbers from trying climbing! For example, Alexander Megos, one of the most accomplished climbers, has an index of 1. Get good at being flexible and doing dynamic movements! I don't have a negative ape index but I'm about 5 to 5ft1 as well, i think (155cm to be exact, haha). Or a ratio of 1, which means that the length from your fingertip to fingertip is the same as your height. People with a positive ape index (longer arms than body) have an advantage climbing over those with a negative ape index. The Longest Reach in UFC negative ape index Reply reply crosscanyon • Height: 61 inches, Arm Span: 66 inches, Ape Index 1: 1. Shorter wingspan than how high you stand? You’ve got a negative one. Ape index formula. wprpllxpqjelrmwtnnjmqlaptiazwvpuarupdsndrkfaodwqnbmmvletvjiwhtuubzuntgsmbzfns