Concurrent Validity and Reliability of Alternative Computer Game for the Coincidence-Anticipation Timing Task     

Tânia Brusque Crocetta  Regiani Guarnieri  Thaís Massetti  Talita Dias da Silva  Renata Thaís de Almeida Barbosa  Jennifer Yohanna Ferreira de Lima Antão 《Measurement in physical education and exercise science》2019,23(2):169-185

The coincidence-anticipation timing (CAT) task assesses one facet of cognitive and motor performance and is used to understand the human visuo-motor system involved in intercepting the moving object. To assess the test–retest reliability and the concurrent validity in the Bridge Games package (Bridge) developed to assess the CAT task, the scores of 224 healthy subjects (M = 52.2, SD = 19.5 years old) were measured using the Bridge and the ‘gold standard’ Bassin Anticipation Timer (Bassin). A mean block of absolute, constant, and variable errors was calculated. Reliability and validity were expressed using intraclass correlation coefficients (ICC_2,k), standard error of measurement, minimal detectable change, and Pearson’s correlation. Reliability was good to excellent for all blocks (.73 ≤ ICC ≤ .88), and the validity was good to excellent when compared using Pearson’s correlation coefficient, suggesting that the two tests may have similar properties. Bridge is an alternative to existing clinical tests for the CAT task.  相似文献   

Muscle coordination,activation and kinematics of world-class and elite breaststroke swimmers during submaximal and maximal efforts     

Bjørn Harald Olstad  João Rocha Vaz  Christoph Zinner  Jan M.H. Cabri  Per-Ludvik Kjendlie 《Journal of sports sciences》2017,35(11):1107-1117

The aims of this study were to describe muscular activation patterns and kinematic variables during the complete stroke cycle (SC) and the different phases of breaststroke swimming at submaximal and maximal efforts. Surface electromyography (sEMG) was collected from eight muscles in nine elite swimmers; five females (age 20.3 ± 5.4 years; Fédération Internationale de Natation [FINA] points 815 ± 160) and four males (27.7 ± 7.1 years; FINA points 879 ± 151). Underwater cameras were used for 3D kinematic analysis with automatic motion tracking. The participants swam 25 m of breaststroke at 60%, 80% and 100% effort and each SC was divided into three phases: knee extension, knee extended and knee flexion. With increasing effort, the swimmers decreased their SC distance and increased their velocity and stroke rate. A decrease during the different phases was found for duration during knee extended and knee flexion, distance during knee extended and knee angle at the beginning of knee extension with increasing effort. Velocity increased for all phases. The mean activation pattern remained similar across the different effort levels, but the muscles showed longer activation periods relative to the SC and increased integrated sEMG (except trapezius) with increasing effort. The muscle activation patterns, muscular participation and kinematics assessed in this study with elite breaststroke swimmers contribute to a better understanding of the stroke and what occurs at different effort levels. This could be used as a reference for optimising breaststroke training to improve performance.  相似文献   

Effective force and economy of triathletes and cyclists   总被引：1，自引：0，他引：1  

Candotti CT  Ribeiro J  Soares DP  De Oliveira AR  Loss JF  Guimarães AC 《Sports biomechanics / International Society of Biomechanics in Sports》2007,6(1):31-43

The effective force applied on the crank, the index of pedalling effectiveness, and the economy of movement at 60, 75, 90, and 105 rev/min cadences were examined in nine cyclists and eight triathletes. Tests were performed on two days. Maximal oxygen uptake was measured and the second ventilatory threshold was estimated on day 1 using a stationary bicycle. On day 2, the four different cadences were tested at about 5% below the second ventilatory threshold. A strain gauge instrumented clip-less pedal mounted on the bicycle enabled us to measure the normal and tangential forces exerted on the pedal, while the pedal and crank angles were monitored with the aid of a video system. Based on this information, the effective force and the index of pedalling effectiveness were calculated. Cyclists produced significantly more effective force and a higher index of pedalling effectiveness at 60 and 75 rev/min and were significantly more economic at all cadences than triathletes. The significant and positive correlation between effective force and economy at all cadences suggests that improvement of the effective force would reflect on economy.  相似文献   

A tool-kit to help students from low socioeconomic status background: a school-based self-regulated learning intervention     

Azevedo  R.  Rosário  P.  Magalhães  P.  Núñez  J. C.  Pereira  B.  Pereira  A. 《European Journal of Psychology of Education - EJPE》2023,38(2):495-518

European Journal of Psychology of Education - Socioeconomic status has been a long-time discussed topic due to its impact on children’s school paths. However, despite extant research...  相似文献   

Teacher and school determinants of perceived classroom discipline: a multilevel analysis of TALIS 2013     

Lopes  João A.  Oliveira  Célia 《Learning Environments Research》2022,25(1):41-58

Learning Environments Research - Classroom discipline is a significant concern in most educational systems and a critical element of an effective learning environment. In this article, we present a...  相似文献   

University entrepreneurial performance: A Fuzzy Set Qualitative Comparative Analysis     

Lurdes D. Patrício  João J. Ferreira 《Higher Education Quarterly》2023,77(4):602-622

As key players in innovation and entrepreneurial ecosystems, Higher Education Institutions (HEI) assume a position as catalysts in creating and disseminating knowledge with repercussions in the societal, economic, political and innovation environments. In this scenario, HEI are facing the need to balance the performance of their traditional missions—teaching and research—with the pursuit of entrepreneurial performance. This brings awareness of the need to pay particular attention to HEI entrepreneurial performance (HEIEP) and how to measure it. Based on HEInnovate, a self-assessment tool resulting from a joint effort of the European Community and the OECD, this study aims to explore the benefits of university entrepreneurial metrics, analysing HEIEP as a discriminant function of the HEInnovate dimensions complemented with a qualitative approach using Fuzzy Set Qualitative Comparative Analysis (fsQCA). The analysis provides valuable details, presenting recipes based on the HEInnovate dimensions or combinations of dimensions to achieve a mission legitimation. This research brings awareness to the use of the HEInnovate scale, where it is possible to highlight the importance of the digital transformation and capability dimension to entrepreneurial performance (EP) and university mission legitimation.  相似文献