Trekking to Kilimanjaro is not a technical climbing, you won't have to pull yourself up, overcome obstacles, use crampons and do other actions required for special climber's training. But at the same time, the ascent to the Uhuru Peak is a work at the breaking point especially during the summit ascent. It is really hard and it is necessary to have a good physical form and willpower to reach the top of Kilimanjaro.