{"id":3574,"date":"2026-04-16T08:38:08","date_gmt":"2026-04-16T06:38:08","guid":{"rendered":"https:\/\/www.aurelcz.eu\/impaktoren-fuer-die-beine-vom-knoechel-bis-zum-oberschenkel\/"},"modified":"2026-05-05T19:37:31","modified_gmt":"2026-05-05T17:37:31","slug":"leg-impactors-from-ankle-to-thigh","status":"publish","type":"post","link":"https:\/\/www.aurelcz.eu\/en\/leg-impactors-from-ankle-to-thigh\/","title":{"rendered":"Leg Impactors: From Ankle to Thigh"},"content":{"rendered":"

In the previous article, we explained what impactors are and why they are a key tool in pedestrian protection testing. In this part, we focus on impactors simulating the lower extremities of a pedestrian \u2013 specifically the area from the ankle to the thigh. In a vehicle collision, the legs are often the first point of contact. For adult pedestrians, they therefore represent one of the most injury-prone body regions.<\/strong><\/p>\n

Why Are Leg Injuries So Common?<\/span><\/h2>\n

In a vehicle-to-pedestrian collision, the bumper typically strikes the lower part of the leg first. The pedestrian\u2019s body is then accelerated and rotates onto the vehicle, resulting in subsequent contact of the pelvis, torso, and head. The lower extremities absorb a significant portion of the impact energy, which often leads to bone fractures, ligament injuries in the knee, or pelvic trauma \u2013 frequently with long-term consequences. For this reason, developers place strong emphasis on <\/span>bumper and front-end design<\/b> within <\/span>pedestrian protection testing<\/b><\/a>. This is precisely where <\/span>lower extremity impactors play a key role.<\/b><\/p>\n

Upper Leg Impactor\u00a0<\/span><\/h2>\n

The upper leg <\/b>impactor<\/b><\/a>, <\/span>also referred to as the thigh impactor<\/b>, is used to evaluate the interaction between the vehicle (the upper part of the bumper or the leading edge of the bonnet) and the upper leg. <\/span>It consists of several key components:<\/b><\/p>\n