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Jacob Benzinger, Jeff R. Crane, Angela M. Coppola, and David J. Hancock

Schools can support physical education (PE) among students with mobility disabilities (SMDs). However, previous research has indicated that people and resources in the school environment have served as facilitators and barriers to engaging SMDs in PE. Thus, the purpose of this pragmatic, qualitative study was to explore physical educators’ perceptions and experiences of teaching SMDs to learn how to develop a PE environment supportive of SMDs. Eleven K-8 PE teachers who taught SMDs engaged in semistructured interviews. A thematic analysis revealed three themes describing facilitators and barriers of a supportive PE environment for SMDs: (a) teacher planning, (b) students in the PE environment, and (c) resources and support. These findings provide context to PE environments for SMDs and highlight a need for increased communication and collaboration with students with or without mobility disabilities, training or professional development for PE teachers to develop skills for adapted PE, and financial and personnel support.

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Michal Vagner, Daniel J. Cleather, Petr Kubový, Vladimír Hojka, and Petr Stastny

Contemporary descriptions of motor control suggest that variability in movement can be indicative of skilled or unskilled performance. Here we used principal component analysis to study the kicking performance of elite and sub-elite soldiers who were highly familiar with the skill in order to compare the variability in the first and second principal components. The subjects kicked a force plate under a range of loaded conditions, and their movement was recorded using optical motion capture. The first principal component explained >92% of the variability across all kinematic variables when analyzed separately for each condition, and both groups and explained more of the variation in the movement of the elite group. There was more variation in the loading coefficient of the first principal component for the sub-elite group. In contrast, for the second principal component, there was more variation in the loading coefficient for the elite group, and the relative magnitude of the variation was greater than for the first principal component for both groups. These results suggest that the first principal component represented the most fundamental movement pattern, and there was less variation in this mode for the elite group. In addition, more of the variability was explained by the hip than the knee angle entered when both variables were entered into the same PCA, which suggests that the movement is driven by the hip.

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Kevin Andrew Richards, Scott McNamara, Alyssa M. Trad, Lauren Hill, and Sarena Abdallah

School administrators represent key agents of socialization for teachers within their schools, including adapted physical educators who design and implement instruction for youth with disabilities, often across multiple school sites. The purpose of this study was to understand how adapted physical educators navigate and build relationships with administrators in the schools where they teach. Data were collected through semistructured interviews with 24 adapted physical educators from the U.S. state of California and analyzed using a multiphase approach. Analysis suggested both the importance of and challenges with building effective relationships with administrators. Themes included the following: (a) Administrators do not understand adapted physical education, which impacts programs and students; (b) the importance of relationship building in cultivating principal support; and (c) relationship development requires intentionality, but results in trust and motivation. Results are discussed using role socialization theory, and recommendations for the preparation of both adapted physical educators and school principals are discussed.

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ZáNean McClain and Daniel W. Tindall

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Diego Augusto Santos Silva and Carolina Fernandes da Silva

Brazil is a country member of the Para Report Card, and Brazilian researchers have frequently published information on physical activity of children and adolescents. The current study aimed to analyze the policies for the promotion of adapted physical activity to Brazilian children and adolescents with disabilities. Official government information on adapted physical activity was analyzed from the official websites. Policies were analyzed based on the Para Report Card benchmarks, and after that we used the principles of SWOT (strengths, weaknesses, opportunities, and threats) to analyze the information. Adapted physical activity is not the main focus of any of the many policies to promote physical activity for children and adolescents. Based on the Para Report Card initiative, the score for this indicator in Brazil is D. Brazil needs to develop specific policies to promote physical activity adapted to the pediatric population with disabilities.

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Justin A. Haegele

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Koichi Hiraoka, Masaya Ishimoto, Mai Kishigami, Ryota Sakaya, Asahi Sumimoto, and Kazuki Yoshikawa

This study investigated the process that contributes to the decay of short-term motor memory regarding force reproduction. Participants performed tonic flexion of the right index finger with the target force feedback (criterion phase) and reproduced this force level without feedback 3, 10, 30, or 60 s after the end of the criterion phase (recall phase). The constant error for force reproduction was significantly greater than zero, indicating that information about the somatosensation and/or motor command in the criterion phase is positively biased. Constant and absolute errors were not influenced by the retention interval, indicating that neither bias nor error represents the decay of short-term motor memory over time. Variable error, defined as SD of bias (force in the recall phase minus that in the criterion phase), increased as the retention interval increased. This indicates that the decay of short-term motor memory is represented by the increase in inconsistency of memory bias among the trials. The correlation coefficient of the force between the criterion and recall phases with 3-s retention interval was greater than that with longer intervals. This is explained by the view that the contribution of the information of the practiced force to the force reproduction process is great within 3 s after the end of the practice, but the additional contribution of the noise information becomes greater after this time, causing lesser relative contribution of the information of the practiced force to the force reproduction process.