ArmLängen

ArmLängen is a term used in German-language sources to refer to the lengths of the human arm. In anthropometry, arm length is divided into components: the upper-arm length (from the shoulder joint to the elbow) and the forearm length (from the elbow to the wrist). Some definitions describe an overall arm length as the distance from the shoulder (acromion) to the tip of the middle finger. The capitalization ArmLängen is a stylistic variant; standard German usually writes Armlängen or Armlänge in the singular.

Measurement and methodology: Arm lengths are measured with a flexible tape or digital devices. Landmarks used include the acromion, olecranon, radial styloid, and fingertip. Protocols emphasize standardized posture, arm position, and landmark identification to ensure comparability. Measurements can be taken on the nondominant arm for consistency, and multiple measurements are often averaged.

Applications and context: Arm length data feed ergonomic design (furniture, tools, workspaces), apparel sizing, and anthropometric databases. In sport science, arm length is linked to reach and throwing mechanics. In medical contexts, arm length can reflect growth development or skeletal conditions. Arm length differences exist by sex, age, and population group, and reliable use relies on standardized definitions and measurement protocols.