title: An image-based approach to obtaining anthropometric measurements for inertia modeling.
abstract: This study aimed to develop and evaluate an image-based method of obtaining anthropometric measurements for accurate subject-specific inertia parameter determination using Yeadon's (1990) inertia model. Ninety-five anthropometric measurements were obtained directly from five athletic performers and indirectly from digitization of subject-specific whole-body still images. The direct and image-based measurements were used as input into Yeadon's (1990) inertia model. The overall absolute error in predicted whole-body mass achieved using the image-based approach (2.87%) compared well to that achieved using the direct measurements (2.10%). The inclusion of image-based anthropometric measurements obtained from extremity (hand and feet) images was not found to consistently improve model accuracy achieved using whole-body images only. The presented method provides a successful alternative to direct measurement for obtaining anthropometric measurements required for customized inertia modeling. The noninvasive image-based approach is benefited by the potential for obtaining subject-specific measurements from large samples of subjects and elite athletic performers for whom time-consuming data collections may be undesirable.
authors.affiliation: Cardiff School of Sport, University of Wales Institute, Cardiff, UK.
authors.forename: Marianne J R
authors.initials: MJ
authors.lastname: Gittoes
authors.forename: Ian N
authors.initials: IN
authors.lastname: Bezodis
authors.forename: Cassie
authors.initials: C
authors.lastname: Wilson
mesh_terms: D000328:Adult; D001696:Biomechanical Phenomena; D015992:Body Mass Index; D049628:Body Size; D006801:Humans; D008297:Male; D008962:Models, Theoretical; D009068:Movement / Q000502:physiology*; D015203:Reproducibility of Results; D013177:Sports; D013997:Time Factors