title: Is the Landing Error Scoring System Reliable and Valid? A Systematic Review

authors: Hanzlíková, Ivana

subjects: Science & Technology

abstract: Context: The Landing Error Scoring System (LESS) is a clinical tool often used in research and practice to identify athletes presenting high injury-risk biomechanical patterns during a jump-landing task. Objective: To systematically review the literature addressing the psychometric properties of the LESS. Data Sources: Three electronic databases (PubMed, Web of Science, and Scopus) were searched on March 28, 2018, using the term “Landing Error Scoring System.” Study Selection: All studies using the LESS as main outcome measure and addressing its reliability, validity against motion capture system, and predictive validity were included. Original English-language studies published in peer-reviewed journals were reviewed. Studies using modified versions of the LESS were excluded. Study Design: Systematic literature review. Level of Evidence: Level 4. Data Extraction: Study design, population, LESS testing procedures, LESS scores, statistical analysis, and main results were extracted from studies using a standardized template. Results: Ten studies met inclusion criteria and were appraised using Newcastle-Ottawa Quality Assessment Scale adapted for cross-sectional studies. The overall LESS score demonstrated good-to-excellent intrarater (intraclass correlation coefficient [ICC], 0.82-0.99), interrater (ICC, 0.83-0.92), and intersession reliability (ICC, 0.81). The validity of the overall LESS score against 3-dimensional jump-landing biomechanics was good when individuals were divided into 4 quartiles based on LESS scores. The validity of individual LESS items versus 3-dimensional motion capture data was moderate-to-excellent for most of the items addressing key risk factors for anterior cruciate ligament (ACL) injury. The predictive value of the LESS for ACL and other noncontact lower-extremity injuries remains uncertain based on the current scientific evidence. Conclusion: The LESS is a reliable screening tool. However, further work is needed to improve the LESS validity against motion capture system and confirm its predictive validity for ACL and other noncontact lower-extremity injuries.

text: Is the Landing Error Scoring System Reliable and Valid? A Systematic Review Context: The Landing Error Scoring System (LESS) is a clinical tool often used in research and practice to identify athletes presenting high injury-risk biomechanical patterns during a jump-landing task. Objective: To systematically review the literature addressing the psychometric properties of the LESS. Data Sources: Three electronic databases (PubMed, Web of Science, and Scopus) were searched on March 28, 2018, using the term “Landing Error Scoring System.” Study Selection: All studies using the LESS as main outcome measure and addressing its reliability, validity against motion capture system, and predictive validity were included. Original English-language studies published in peer-reviewed journals were reviewed. Studies using modified versions of the LESS were excluded. Study Design: Systematic literature review. Level of Evidence: Level 4. Data Extraction: Study design, population, LESS testing procedures, LESS scores, statistical analysis, and main results were extracted from studies using a standardized template. Results: Ten studies met inclusion criteria and were appraised using Newcastle-Ottawa Quality Assessment Scale adapted for cross-sectional studies. The overall LESS score demonstrated good-to-excellent intrarater (intraclass correlation coefficient [ICC], 0.82-0.99), interrater (ICC, 0.83-0.92), and intersession reliability (ICC, 0.81). The validity of the overall LESS score against 3-dimensional jump-landing biomechanics was good when individuals were divided into 4 quartiles based on LESS scores. The validity of individual LESS items versus 3-dimensional motion capture data was moderate-to-excellent for most of the items addressing key risk factors for anterior cruciate ligament (ACL) injury. The predictive value of the LESS for ACL and other noncontact lower-extremity injuries remains uncertain based on the current scientific evidence. Conclusion: The LESS is a reliable screening tool. However, further work is needed to improve the LESS validity against motion capture system and confirm its predictive validity for ACL and other noncontact lower-extremity injuries.

year: 2020-01-21

title: Virtual spaces and networks in Geographical Education and research

authors: Chalmers, Lex

subjects: multicast

abstract: This paper relates developments in the use of Internet-based communication technologies to contemporary exchanges of geographical ideas and content. A brief history of the Internet provides the basis for a review of uses of broadband Internet in contemporary Geography. Two themes are explored: the first is the concept of virtual communities of practice, and the second describes the nature and use of virtual research networks, with a focus on Access Grid. The key argument is that the enhanced Internet capabilities facilitate virtual communities in Geographical Education. The paper is based on five years of experience in developing in-service support at the University of Waikato and the in-class use of tutorial software over the Internet.

text: Virtual spaces and networks in Geographical Education and research This paper relates developments in the use of Internet-based communication technologies to contemporary exchanges of geographical ideas and content. A brief history of the Internet provides the basis for a review of uses of broadband Internet in contemporary Geography. Two themes are explored: the first is the concept of virtual communities of practice, and the second describes the nature and use of virtual research networks, with a focus on Access Grid. The key argument is that the enhanced Internet capabilities facilitate virtual communities in Geographical Education. The paper is based on five years of experience in developing in-service support at the University of Waikato and the in-class use of tutorial software over the Internet.

year: 2009

title: 2021 NSCBI Paakehaa/Tauiwi Caucus Conference Session and Future Directions

authors: Graham, Rebekah Sarah

abstract: The National Standing Committee on Bicultural Issues (NSCBI) celebrated its 30th anniversary at the Annual NZPsS Conference, held virtually due to Covid-19 restrictions. The Paakehaa/Tauiwi caucus discussed the NSCBI’s core values, focusing on how to uphold and connect with each value, such as protecting values passed down by tūpuna and promoting a vision of the future. Anti-racism education was presented, emphasizing the journey from the “Fear Zone” to the “Learning Zone” and into the “Growth Zone” as a tool for self-assessment. Reflections on supporting and challenging each other to make psychological practice actively anti-racist concluded the session. Key takeaways included the discomfort of staying silent, the importance of learning and trying, and being a bridge for others on their anti-racist journey. The participants agreed on the usefulness of the discussion and expressed a commitment to organizing more regular online events focusing on anti-racism and anti-racist practice. The NSCBI Paakehaa/Tauiwi aims for 2021-2022 include strategically highlighting contributions to hostile working environments, developing relationships with anti-racism groups, promoting Māori psychologies, and facilitating online conversations, webinars, and discussions on Te Tiriti o Waitangi and biculturalism. The group also plans to develop training material and professional development for practitioners. The NSCBI acknowledges the ongoing progress in understanding racism and fostering openness among Paakehaa/Tauiwi in engaging with bicultural practices. Those interested in NSCBI events or contributing to their organization and promotion can visit the NZPsS Events page.

text: 2021 NSCBI Paakehaa/Tauiwi Caucus Conference Session and Future Directions The National Standing Committee on Bicultural Issues (NSCBI) celebrated its 30th anniversary at the Annual NZPsS Conference, held virtually due to Covid-19 restrictions. The Paakehaa/Tauiwi caucus discussed the NSCBI’s core values, focusing on how to uphold and connect with each value, such as protecting values passed down by tūpuna and promoting a vision of the future. Anti-racism education was presented, emphasizing the journey from the “Fear Zone” to the “Learning Zone” and into the “Growth Zone” as a tool for self-assessment. Reflections on supporting and challenging each other to make psychological practice actively anti-racist concluded the session. Key takeaways included the discomfort of staying silent, the importance of learning and trying, and being a bridge for others on their anti-racist journey. The participants agreed on the usefulness of the discussion and expressed a commitment to organizing more regular online events focusing on anti-racism and anti-racist practice. The NSCBI Paakehaa/Tauiwi aims for 2021-2022 include strategically highlighting contributions to hostile working environments, developing relationships with anti-racism groups, promoting Māori psychologies, and facilitating online conversations, webinars, and discussions on Te Tiriti o Waitangi and biculturalism. The group also plans to develop training material and professional development for practitioners. The NSCBI acknowledges the ongoing progress in understanding racism and fostering openness among Paakehaa/Tauiwi in engaging with bicultural practices. Those interested in NSCBI events or contributing to their organization and promotion can visit the NZPsS Events page.

year: 2021-11