Chow, Jia Yi

Nonlinear pedagogy (NP) approach encourages exploratory learning with Physical Education (PE) teachers, applying key pedagogical principles that focus on manipulating task constraints and creating representative learning designs to enhance skill-learning. This research project showed that students taught with an NP approach demonstrated more individualized and creative movement solutions to learn a motor skill and, despite the reduced emphasis on prescriptive instruction and drill, still achieved success. Importantly, these students also showed more effective game play characteristics after a series of PE lessons based on NP principles. Interview data from students and teachers provided insights on their positive perception of NP and its potential impact on teacher education and professional development.

Background The concept of physical literacy (PL) has been advocated as the need to create environments fostering sustainable engagement in PA. This study adopted ecological approach to evaluate the effectiveness of a blended PL intervention embedded into the school day to support children’s PA and health. Method Designed as a three-arm randomized controlled trial, a total of 79 participants (59.5% girls) were randomly assigned to: the “Quantity + Quality” blended PL group combining sit–stand desks and play-based recess (SSPlay), the “Quality” group with play-based recess only (Play) or the control group. The intervention lasted for 13 weeks, and all the variables were collected at baseline, post-intervention and 3-month follow-up. Results SSPlay and Play group significantly improved on two of the embodied PL domains, Physical Competence (− 2.96 vs − 5.15, p < 0.05) and Knowledge and Understanding (− 2.35 vs − 2.00, p < 0.05), total errors of cognitive flexibility (24.00 vs 12.92, p < 0.05), and this difference was maintained at follow-up (p < 0.05). Whilst there was no interaction effect between groups, and time effects were found for PA and planning from baseline to post-intervention. Conclusion This was the first to adopt an ecological approach as an innovative strategy to provide the emergence of PA for children in Hong Kong. The blended intervention design that embedded both quantity and quality of PA into children’s school day has shown promise in supporting children’s all round development. PL intervention where environments are designed to increase the “Quantity + Quality” of children’s everyday interactions has led to improvements in PA and health outcomes, which may provide insights for future studies to adopt cost-friendly and feasible measures for promoting children’s PA in the school settings.

Background: Maintaining a healthy gait into old age is key to preserving the quality of life and reducing the risk of falling. Nonlinear dynamic analyses (NDAs) are a promising method of identifying characteristics of people who are at risk of falling based on their movement patterns. However, there is a range of NDA measures reported in the literature. The aim of this review was to summarise the variety, characteristics and range of the nonlinear dynamic measurements used to distinguish the gait kinematics of healthy older adults and older adults at risk of falling. Methods: Medline Ovid and Web of Science databases were searched. Forty-six papers were included for full-text review. Data extracted included participant and study design characteristics, fall risk assessment tools, analytical protocols and key results. Results: Among all nonlinear dynamic measures, Lyapunov Exponent (LyE) was most common, followed by entropy and then Fouquet Multipliers (FMs) measures. LyE and Multiscale Entropy (MSE) measures distinguished between older and younger adults and fall-prone versus non-fall-prone older adults. FMs were a less sensitive measure for studying changes in older adults’ gait. Methodology and data analysis procedures for estimating nonlinear dynamic measures differed greatly between studies and are a potential source of variability in cross-study comparisons and in generating reference values. Conclusion: Future studies should develop a standard procedure to apply and estimate LyE and entropy to quantify gait characteristics. This will enable the development of reference values in estimating the risk of falling.

There were three objectives to this proposal: (i) to develop an ecologically valid match­fitness test for badminton players -the badminton intermittent shuttle test (BIST); (ii) to determine the reliability and physiological validity of the test; and (iii) to examine the influence of fatigue, induced by the BIST, on badminton performance.

The aim of this paper is to show how principles of ecological psychology and dynamical systems theory can underpin a philosophy of coaching practice in a non-llnear pedagogy. Nonlinear pedagogy is based on a view of the human movement system as a nonlinear dynamical system and has been basically defined as the application of concepts and tools of nonlinear dynamics to coaching practice. A systems orientation is adopted to show how nonlinear dynamical movement systems demonstrate an openness to environmental information flows, use inherent degeneracy to adapt movements to dynamic environments, show capacity for self-organisation, and fluctuate between stability and instability as changes in constraints on performance shape transitions in system organisation. We demonstrate how this perspective of the human movement system can aid understanding of motor learning processes and underpin practice /or sports coaches. We provide a description of nonlinear pedagogy followed by a consideration of some of the fundamental principles of ecological psychology and dynamical systems theory that underpin it as a coaching philosophy. We illustrate how each principle impacts on nonlinear pedagogical coaching practice, demonstrating how they can substantiate a framework for the coaching process.

From a nonlinear dynamics perspective, presence of movement variability before a change in preferred movement patterns is hypothesized to afford the necessary adaptability and flexibility for seeking novel functional behaviors. In this study, four novice participants practiced a discrete multiarticular movement for 12 sessions over 4 weeks. Cluster analysis procedures revealed how changes between preferred movement patterns were affected with and without the presence of variability in movement clusters before a defined change. Performance improved in all participants as a function of practice. Participants typically showed evidence of change between preferred movement clusters and higher variability in the use of movement clusters within a session. However, increasing variability in movement clusters was not always accompanied by transition from one preferred movement cluster to another. In summary, it was observed that intentional and informational constraints play an important role in influencing the specific pathway of change for individual learners as they search for new preferred movement patterns.

Dynamics of Skill Acquisition, Second Edition, provides an analysis of the processes underlying human skill acquisition. As the first text to outline the multidisciplinary ecological dynamics framework for understanding movement behavior, this heavily updated edition stays on the cutting edge, with principles of nonlinear pedagogy and methodologies from the constraints-led approach.