Validation of a Markerless Multi-Camera Pipeline for Bouldering Fall Kinematics.

ABSTRACT: Indoor bouldering is a popular and rapidly growing sport in which climbers fall repeatedly from walls up to 4-5 m high, making lower-limb injuries common. It is therefore essential to understand fall kinematics and impact conditions, yet fall kinematics remain poorly documented because laboratory motion capture is impractical in gyms. This study aimed to validate a markerless multi-camera pipeline (Pose2Sim) against a 2D video annotation tool (Kinovea) for displacement and velocity measurement, and against IMUs for peak acceleration. Ten teenage athletes (3 males, 7 females; 14-17 years) performed 40 falls recorded with five cameras (GoPro HERO12, USA, 2.7 K, 240 fps) and three IMUs (Blue Trident, Vicon, UK; ±200 g, 1600 Hz). Cut-off frequencies were set using Yu's method (13 Hz for video,

SUBMITTER: Carretier N 

PROVIDER: S-EPMC12846235 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature