Quiet eye duration is responsive to variability of practice and to the axis of target changes

We tested the hypothesis that quiet eye the final fixation before the initiation of a movement in aiming tasks, is used to scale the movement's parameters. Two groups of 12 participants (N=24) threw darts to targets in the horizontal and vertical axes under conditions of higher (random) or lower (blocked) target variability. Supporting our predictions, random practice and target changes in the vertical axis led to longer quiet eye duration than did blocked practice and target changes in the horizontal axis. Our data suggest that quiet eye is not simply a mediating factor in accuracy, but is responsive to the task's programming demands, being influenced by the necessity to reparameterize the movement from one trial to the next.     

A lower extremity strength-based profile of NCAA Division I women’s basketball and gymnastics athletes: implications for knee joint injury risk assessment

This study aimed to provide a comprehensive strength-based physiological profile of women’s NCAA Division I basketball and gymnastic athletes; and to make sport-specific comparisons for various strength characteristics of the knee flexor and extensor muscles. A focus on antagonist muscle balance (hamstrings-to-quadriceps ratios, H:Q) was used to elucidate vulnerabilities in these at-risk female athletes. Fourteen NCAA Division I women’s basketball and 13 gymnastics athletes performed strength testing of the knee extensors and flexors. Outcome measures included absolute and relative (body mass normalised) peak torque (PT), rate of torque development at 50, 100, 200 ms (RTD50 etc.) and H:Q ratios of all variables. The basketball athletes had greater absolute strength for all variables except for isokinetic PT at 240°s^?1 and isometric RTD50 for the knee extensors. Gymnasts showed ~20% weaker body mass relative concentric PT for the knee flexors at 60 and 120°·s^?1, and decreased conventional H:Q ratios at 60 and 240°·s^?1 (~15%). These findings suggest that collegiate level gymnastics athletes may be prone to increased ACL injury risk due to deficient knee flexor strength and H:Q strength imbalance. Coaches may use these findings when implementing injury prevention screening and/or for individualised strength training programming centered around an athletes strength-related deficits.     

The tensions of transformation in three cross-institutional wikibook projects

Wikis have the potential to change learning environments from traditional knowledge transmission models to knowledge transformative ones where students generate, share, and reshape knowledge. In this three-part study, graduate students created wikibooks across institutional settings. One of these projects extended to universities in China, Taiwan, Malaysia, and the United States, whereas the other two involved two universities in the United States. The degree of scaffolding and other support varied in each project. At the end of each study, students were surveyed about their wikibook efforts. In addition, instructors across the institutions were interviewed about the obstacles they faced as well the opportunities. Based on these results, more than two dozen cross-institutional wikibook issues are organized into five key themes: (1) instructional issues; (2) collaboration issues; (3) technology issues; (4) constructivism and sense of community issues; and (5) wikibook issues. Several recommendations are offered related to the use of wikibooks in the classroom as a transformational learning tool.     

Development of an instrument to measure Faculty’s information and communication technology access (FICTA)

The phenomenon of “digital divide” is complex and multidimensional, extending beyond issues of physical access. The purpose of this study was to develop a scale to measure a range of factors related to digital divide among higher education faculty and to evaluate its reliability and validity. Faculty’s Information and Communication Technology Access (FICTA) scale was tested and validated with 322 faculty teaching in public and private sector universities. Principal components analysis with varimax rotation confirmed an 8-factor solution corresponding to various dimensions of ICT access. The 57-item FICTA scale demonstrated good psychometric properties and offers researchers a tool to examine faculty’s access to ICT at four levels – motivational, physical, skills, and usage access.