In sports motion analysis, observation is a prerequisite for understanding the quality of motions. This paper introduces a novel approach to detect and segment sports motions using a wearable sensor for supporting systematic observation. The main goal is, for convenient analysis, to automatically provide motion data, which are temporally classified according to the phase definition. For explici...

This paper proposes a method for key−frame selec−tion of captured motion data. Motion capture systems have been widely used in CG amusement and human motion analysis such as games and athlete training. For manipulation, retrieval and transmission, the compact motion is often required. Key−framing is often used to express CG animation with a compact set of frames. In general, the animation is de...

BACKGROUND: An understanding of how motor skill performance levels relate to energy expenditure (EE) is an important, yet relatively unexplored topic that may better inform physical activity interventions. AIM: This study examined the impact competence (MC) on EE during object control skills in children and young adults. METHOD: Forty-two (Mage 8.1 years) 40 adults = 23.4 completed sessions thr...

To investigate non-kicking-side arm motion during rugby place kicking, five experienced male kickers performed trials under two conditions, both with an accuracy requirement but one with an additional maximal distance demand. Joint centre coordinates were obtained at 120 Hz during kicking trials and a three-dimensional model was created to enable the determination of segmental contributions to ...

The accuracy of throwing in games and sports is governed by how errors in planning and initial conditions are propagated by the dynamics of the projectile. In the simplest setting, the projectile path is typically described by a deterministic parabolic trajectory which has the potential to amplify noisy launch conditions. By analysing how parabolic trajectories propagate errors, we show how to ...

The purpose of this study was to assess the motor competence children with and without amblyopia. Study participants were 165 primary school children, aged 6–9 years, divided into three groups based on their visual acuity Snellen chart: (a) non-amblyopia, (b) corrected amblyopia, (c) non-corrected We assessed children’s Motor Competence Assessment battery (MCA) physical activity Physical Activi...

the present study aimed to examine throwing accuracy and spatial and digit working memory of field dependent-independent participants. the group embedded figure test (geft) was distributed among 320 male students and based on the geft scores, 45 participants were randomly divided into field dependent, field independent and control group (15 participants/each group). the study included two tasks...