Grimpampi Eleni, Masci Ilaria, Pesce Caterina, Vannozzi Giuseppe
a Interuniversity Centre of Bioengineering of the Human Neuromusculoskeletal System, Department of Movement, Human and Health Sciences , University of Rome "Foro Italico" , Rome , Italy.
b Interuniversity Centre of Bioengineering of the Human Neuromusculoskeletal System , Aix-Marseille Université , Marseille , France.
J Sports Sci. 2016 Sep;34(18):1759-65. doi: 10.1080/02640414.2015.1137341. Epub 2016 Jan 28.
Motor proficiency in childhood has been recently recognised as a public health determinant, having a potential impact on the physical activity level and possible sedentary behaviour of the child later in life. Among fundamental motor skills, ballistic skills assessment based on in-field quantitative observations is progressively needed in the motor development community. The aim of this study was to propose an in-field quantitative approach to identify different developmental levels in overarm throwing. Fifty-eight children aged 5-10 years performed an overarm throwing task while wearing three inertial sensors located at the wrist, trunk and pelvis level and were then categorised using a developmental sequence of overarm throwing. A set of biomechanical parameters were defined and analysed using multivariate statistics to evaluate whether they can be used as developmental indicators. Trunk and pelvis angular velocities and time durations before the ball release showed increasing/decreasing trends with increasing developmental level. Significant differences between developmental level pairs were observed for selected biomechanical parameters. The results support the suitability and feasibility of objective developmental measures in ecological learning contexts, suggesting their potential supportiveness to motor learning experiences in educational and youth sports training settings.
儿童时期的运动能力最近被视为一种公共卫生决定因素，对儿童日后生活中的身体活动水平和可能出现的久坐行为具有潜在影响。在基本运动技能中，运动发展领域越来越需要基于现场定量观察的抛射技能评估。本研究的目的是提出一种现场定量方法，以识别过肩投掷的不同发展水平。58名5至10岁的儿童在手腕、躯干和骨盆水平佩戴三个惯性传感器进行过肩投掷任务，然后根据过肩投掷发展序列进行分类。定义了一组生物力学参数，并使用多元统计进行分析，以评估它们是否可作为发展指标。球释放前的躯干和骨盆角速度以及持续时间随发展水平的提高呈增加/减少趋势。对于选定的生物力学参数，观察到不同发展水平对之间存在显著差异。结果支持了在生态学习环境中进行客观发展测量的适用性和可行性，表明它们在教育和青少年体育训练环境中对运动学习体验具有潜在的支持作用。
