Modifiable (biomechanical and neuromuscular) anterior cruciate ligament (ACL) injury risk factors have been identified in laboratory settings. These risk factors were subsequently used in ACL injury prevention measures. Due to the lack of ecological validity, the use of on-field data in the ACL injury risk screening is increasingly advocated. Though, the kinematic differences between laboratory and on-field settings have never been investigated. The aim of the present study was to investigate the lower-limb kinematics of female footballers during agility movements performed both in laboratory and football field environments. Twenty-eight healthy young female talented football (soccer) players (14.9 ± 0.9 years) participated. Lower-limb joint kinematics was collected through wearable inertial sensors (Xsens Link) in three conditions: (1) laboratory setting during unanticipated sidestep cutting at 40-50°; on the football pitch (2) football-specific exercises (F-EX) and (3) football games (F-GAME). A hierarchical two-level random effect model in Statistical Parametric Mapping was used to compare joint kinematics among the conditions. Waveform consistency was investigated through Pearson's correlation coefficient and standardized z-score vector. In-lab kinematics differed from the on-field ones, while the latter were similar in overall shape and peaks. Lower sagittal plane range of motion, greater ankle eversion, and pelvic rotation were found for on-field kinematics (p < 0.044). The largest differences were found during landing and weight acceptance. The biomechanical differences between lab and field settings suggest the application of context-related adaptations in female footballers and have implications in ACL injury prevention strategies. Highlights: Talented youth female football players showed kinematical differences between the lab condition and the on-field ones, thus adopting a context-related motor strategy. Lower sagittal plane range of motion, greater ankle eversion, and pelvic rotation were found on the field. Such differences pertain to the ACL injury mechanism and prevention strategies. Preventative training should support the adoption of non-linear motor learning to stimulate greater self-organization and adaptability. It is recommended to test football players in an ecological environment to improve subsequent primary ACL injury prevention programmes.
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The relationship between race and biology is complex. In contemporary medical science, race is a social construct that is measured via self-identification of study participants. But even though race has no biological essence, it is often used as variable in medical guidelines (e.g., treatment recommendations specific for Black people with hypertension). Such recommendations are based on clinical trials in which there was a significant correlation between self-identified race and actual, but often unmeasured, health-related factors such as (pharmaco) genetics, diet, sun exposure, etc. Many teachers are insufficiently aware of this complexity. In their classes, they (unintentionally) portray self-reported race as having a biological essence. This may cause students to see people of shared race as biologically or genetically homogeneous, and believe that race-based recommendations are true for all individuals (rather than reflecting the average of a heterogeneous group). This medicalizes race and reinforces already existing healthcare disparities. Moreover, students may fail to learn that the relation between race and health is easily biased by factors such as socioeconomic status, racism, ancestry, and environment and that this limits the generalizability of race-based recommendations. We observed that the clinical case vignettes that we use in our teaching contain many stereotypes and biases, and do not generally reflect the diversity of actual patients. This guide, written by clinical pharmacology and therapeutics teachers, aims to help our colleagues and teachers in other health professions to reflect on and improve our teaching on race-based medical guidelines and to make our clinical case vignettes more inclusive and diverse.
MULTIFILE
Thermal comfort is determined by the combined effect of the six thermal comfort parameters: temperature, air moisture content, thermal radiation, air relative velocity, personal activity and clothing level as formulated by Fanger through his double heat balance equations. In conventional air conditioning systems, air temperature is the parameter that is normally controlled whilst others are assumed to have values within the specified ranges at the design stage. In Fanger’s double heat balance equation, thermal radiation factor appears as the mean radiant temperature (MRT), however, its impact on thermal comfort is often ignored. This paper discusses the impacts of the thermal radiation field which takes the forms of mean radiant temperature and radiation asymmetry on thermal comfort, building energy consumption and air-conditioning control. Several conditions and applications in which the effects of mean radiant temperature and radiation asymmetry cannot be ignored are discussed. Several misinterpretations that arise from the formula relating mean radiant temperature and the operative temperature are highlighted, coupled with a discussion on the lack of reliable and affordable devices that measure this parameter. The usefulness of the concept of the operative temperature as a measure of combined effect of mean radiant and air temperatures on occupant’s thermal comfort is critically questioned, especially in relation to the control strategy based on this derived parameter. Examples of systems which deliver comfort using thermal radiation are presented. Finally, the paper presents various options that need to be considered in the efforts to mitigate the impacts of the thermal radiant field on the occupants’ thermal comfort and building energy consumption.
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This quick guide is written to inspire designers, policy makers, company owners, employees, educators and students to change the linear economy into a circular economy by collaborating in local value chains. This guide explains the basics of circular economy, value chains and it gives practical tips for you to work with and practical examples to learn from. It is developed within the context of the Biocup project, part of the BIOCAS Interreg project supported by the North Sea Programme of the European Regional Development Fund of the European Union.
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A 4*4 PitStop is a metaphor for the work method or format used for a pop-up professional network. The method is designed to allow work, innovation and learning to go hand in hand. This format is based on the goals and direction provided by the participating professionals themselves. With this guide, we are sharing the results with professionals who want to start their own 4*4 PitStop.
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This special issue of Systems Research and Behavioural Science is about the systematic use of metaphor and its implications for behaviour, especially in the field of knowledge management.
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Purpose The purpose of this paper is to clarify which knowledge, skills and behaviors are used to describe excellent performance in professional communication. As the demand for talented communication professionals increases, organizations and educators need an empirically defined set of performance criteria to guide the development of (potentially) excellent communication professionals (ECPs). This research aimed to render a competence profile which could assist in the development of recruitment, training and development to develop relevant programs for high-potential communication practitioners. Design/methodology/approach This mixed-method research was approached in two phases: first, a series of focus groups (n=16) were held to explore work field perspectives resulting in a concept profile, and second, a series of expert panels (n=30) following the Delphi method were conducted to determine the extent of agreement with the findings. Findings Participants clarified that excellent performance is characterized by competences which transcend normative technical skills or practical communication knowledge. The five domains, 16 item ?SEEDS? competence profile describes that ECPs are distinguished by their compounded ability to be strategic, empathic, expressive, and decisive and to see patterns and interrelationships. Research limitations/implications Although a broad range of relevant professionals were involved in both phases, the study could be considered limited in size and scope. Research was conducted in one national setting therefore further research would be necessary to confirm generalizability of the results to other cultural contexts. Originality/value Although many competence frameworks exist which describe normative performance in this profession, specific criteria which illustrate excellent performance have not yet been identified. This competence profile clarifies characteristics which typify excellent performance in professional communication and can be helpful to educators and employers who wish to identify and create suitable training programs for ECPs.
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