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Richard A. Brindle D. David Ebaugh John D. Willson Margaret A. Finley Patricia A. Shewokis Clare E. Milner 《Journal of sports sciences》2020,38(20):2291-2297
ABSTRACT A large peak hip adduction angle during running is a risk factor for several overuse injuries in women. The purpose of this study was to determine if female runners with a large peak hip adduction angle have differences in eccentric hip abductor muscle strength, hip neuromuscular control, and/or hip width to femoral length ratio (HW:FL) compared to those with a small angle. Hip adduction during running, hip strength, hip control, and HW:FL were measured in sixty healthy female runners (1.66 ± 0.06 m; 63.2 ± 8.3 kg; 27 ± 6 years). Data from twenty runners with the largest and twenty with the smallest peak hip adduction angles were analysed. Between-group differences in hip strength, control, and HW:FL were determined using independent t-tests (p < 0.05). Variables that were significantly different between groups were entered into a regression model. Runners in both groups had similar hip strength (p = 0.90) and control (p = 0.65). HW:FL was greater in the large peak angle group (p = 0.04), but only explained a small amount of peak hip adduction angle variance for all sixty runners (R2 = 0.05). Alarge peak hip adduction angle in some healthy female runners may simply be instinctive as there were no deficiencies in the strength or neuromuscular control constructs assessed. 相似文献
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Matthew J. Irvin Thomas W. Farmer Margaret P. Weiss Judith L. Meece Soo‐yong Byun Bethany M. McConnell Robert A. Petrin 《Learning disabilities research & practice》2011,26(1):2-14
This study examined the school perceptions and educational aspirations of 6,599 rural high school students, a sample that included 428 students with learning disabilities (LD). Regardless of disability status, rural high school students who had negative perceptions of school had less well‐defined postsecondary educational plans and less often aspired to complete college or pursue an advanced degree. Compared to nondisabled youth, rural students with LD were more likely to have negative perceptions of school and lower postsecondary aspirations. However, students with LD who had positive perceptions of school more often planned to pursue postsecondary education and aspired to complete college or an advanced degree. Implications for research and interventions pertaining to the educational attainment of students with LD are discussed. 相似文献
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Margaret Bausman Sarah Laleman Ward John Pell 《New Review of Academic Librarianship》2014,20(2):117-136
This article reports upon the assessment and research activities undertaken by a research group of faculty librarians at Hunter College regarding the perceptions, awareness, and usage of library services by non-librarian faculty members. Given the initial directive to measure faculty satisfaction with library services, the research group developed an ongoing action-research protocol to pursue more meaningful assessments of faculty awareness and use of library services and resources. The researchers employed both qualitative and quantitative methodologies, gathering data through informal information groups with faculty members and through an online survey measuring faculty awareness of library resources and services (Faculty Awareness of Library Services (FALS)). The findings show that while Hunter faculty value relational engagement with the library, they are more frequently aware of non-relational, self-service library resources. Further, the data suggest that tenured faculty members are aware of library services at a higher rate than tenure-track faculty. This data forms the foundation of an on-going action-research protocol to assess long-term trends, the products of which will continue to inform faculty services, outreach, and programming. 相似文献
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Jemin Kim Margaret A. Wilson Kunal Singhal Sarah Gamblin Cha-Young Suh 《Sports biomechanics / International Society of Biomechanics in Sports》2014,13(3):215-229
The purpose of this study was to investigate the vertical angular momentum generation strategies used by skilled ballet dancers in pirouette en dehors. Select kinematic parameters of the pirouette preparation (stance depth, vertical center-of-mass motion range, initial shoulder line position, shoulder line angular displacement, and maximum trunk twist angle) along with vertical angular momentum parameters during the turn (maximum momentums of the whole body and body parts, and duration and rate of generation) were obtained from nine skilled collegiate ballet dancers through a three-dimensional motion analysis and compared among three turn conditions (single, double, and triple). A one-way (‘turn’) multivariate analysis of variance of the kinematic parameters and angular momentum parameters of the whole body and a two-way analysis of variance (‘turn’ × ‘body’) of the maximum angular momentums of the body parts were conducted. Significant ‘turn’ effects were observed in the kinematic/angular momentum parameters (both the preparation and the turn) (p < 0.05). As the number of turns increased, skilled dancers generated larger vertical angular momentums by predominantly increasing the rate of momentum generation using rotation of the upper trunk and arms. The trail (closing) arm showed the largest contribution to whole-body angular momentum followed by the lead arm. 相似文献
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