Morphological changes of the lateral abdominal muscles in adolescent soccer players with low back pain: A prospective cohort study

BackgroundMost papers examining the lateral abdominal muscles (LAMs) and low back pain (LBP) are cross-sectional, with groups of participants being divided into a control and an LBP group. We hypothesized that morphological measurements of the LAMs in adolescent soccer players may predict future LBP incidence. The aim of this study was to examine the associations between the morphology of LAMs and LBP incidence rate among adolescent soccer players.MethodsNinety-seven adolescent male soccer players with no LBP at baseline were recruited into the prospective cohort study. The thickness of the LAMs was measured at baseline by ultrasound imaging in a supine rest position. Nine cases of LBP occurred during the follow-up 6-month observation.ResultsAn obliquus internus (OI) asymmetry was related to increasing LBP risk (odds ratio = 19.99; 95%CI: 2.4–167.9). Spearman correlation also showed a linear relationship between OI asymmetry value and duration of LBP (R = 0.75, p = 0.02). An OI side-to-side difference greater than 1.25 mm suggests possible LBP incidence in the 6-month observation among adolescent soccer players.ConclusionThe morphological changes of the OI may be related to LBP’s incidence in adolescent soccer players. The presence of OI asymmetry increases the odds of LBP by at least 2.4 times. Hypertrophy of the OI on one side of the body may contribute to trunk muscle imbalance.     

Reflections on the value of autistic participation in a tri‐national teacher‐training project through discourses of acceptance,othering and power

The Transform Autism Education (TAE) project is a tri‐national teacher training scheme involving Greece, Italy and the UK, whose purpose is to set up training projects to facilitate the educational inclusion of autistic children. Running over three years from 2014 to 2017, the involvement of autistic participants has been the source of some discussion. Here, TAE team members Wood and Milton reflect on narratives of participation, acceptance and struggle which emerged during a workshop they ran in Greece. Derived from 11 non‐autistic and two autistic participants, and analysed via discourse analysis, these stories suggest a high value placed on autistic participation by non‐autistic TAE team members, but an unwitting tendency to ‘other’ autistic people and a lack of awareness of the power differential. Meanwhile, as the autistic team members describe how educational and social participation can be achieved, the implications for autism education researchers and practitioners are discussed.     

Lactate accumulation following isometric exercise training and its relationship with reduced resting blood pressure

The purpose of this study was (a) to assess lactate accumulation during isometric exercise, and to quantify the shifts in accumulation following isometric training; and (b) to relate any training-induced changes in lactate accumulation to reductions in resting blood pressure. Eleven male participants undertook isometric training for a 4-week period using bilateral-leg exercise. Training caused reductions in systolic, diastolic, and mean arterial resting blood pressure (of -4.9 ± 6.3 mmHg, P = 0.01; -2.6 ± 3.0 mmHg, P = 0.01; and -2.6 ± 2.3 mmHg, P = 0.001 respectively; mean ± s). These were accompanied by changes in muscle activity, taken as electromyographic activity to reach a given lactate concentration (from 114 ± 22 to 131 ± 27 mV and from 136 ± 25 to 155 ± 34 mV for 3 and 4 mmol · L(-1) respectively. Training intensity expressed relative to peak lactate was correlated with reduced resting systolic and mean arterial blood pressure. Training caused significant shifts in lactate accumulation, and reductions in resting blood pressure are strongly related to training intensity, when expressed relative to pre-training peak lactate. This suggests that higher levels of local muscle anaerobiosis may promote the training-induced reductions in resting blood pressure.     

Covariate Measurement Error Correction for Student Growth Percentiles Using the SIMEX Method

In this study, we examined the impact of covariate measurement error (ME) on the estimation of quantile regression and student growth percentiles (SGPs), and find that SGPs tend to be overestimated among students with higher prior achievement and underestimated among those with lower prior achievement, a problem we describe as ME endogeneity in this article. We proceeded to assess the effect of covariate ME correction on SGP estimation at two levels—the individual (student) and the aggregate (classroom). Our ME correction approach was limited to the simulation‐extrapolation method known as SIMEX. For both the individual and aggregate SGP, we find SIMEX effective in bias reduction. Further, because SIMEX is especially effective in reducing SGP bias for students with very high or very low prior achievement, it significantly weakens the ME endogeneity. SIMEX is also effective in reducing the MSE of aggregate SGP, provided that the students are sorted to some extent on their latent prior achievement. Our empirical study confirms the pattern of the simulation results: SIMEX mainly affects the mean SGP of classes in the highest and lowest quintiles of the prior score distribution, and significantly lowers the correlation between class SGP and prior achievement.     

Critiquing the school community: a qualitative study of children's conceptualizations of their school 1

Schools are traditionally seen as responsible for the educational outcomes of our children. However, schools also play an important role in the development of aspects such as self‐efficacy, participation, competence and self‐determination. As schools are often run as societies rather than communities, they offer little opportunity for these attributes (self‐efficacy, participation, competence and self‐determination) to develop. Forty‐six children aged from nine to 12 years were interviewed to ascertain their conceptualizations of the school community. The children define their school in terms of people, places for activities and interaction, a place for safety, cooperation, influence and functionality. The responses closely align to the adult conceptualizations of sense of community as purported by McMillan and Chavis (1986 McMillan, D.W. and Chavis, D.M. 1986. Sense of community: a definition and theory. Journal of Community Psychology, 14: 6–23. [Crossref], [Web of Science ®] , [Google Scholar]). Implications of this research suggest that children can and should have an integral role in designing a curriculum and systems relevant to the school context if we are at all concerned with their psychological wellness.     

Teacher preparation in Malaysia: needed changes

The article attempts to present personal views of some changes that are needed to be made within teacher education in Malaysia. It uses one teacher education university as a point of reference to forward concerns. The university remains anonymous as it is not the intent of the article to critique the university but rather to highlight the more general challenges in preparing preservice teachers and to explore some approaches to improve teacher education within this university and its setting. The article starts by drawing together a set of concerns that face the field, arguing that three changes are needed to improve teacher preparation, namely (1) a curriculum that is grounded in the Malaysian context, (2) an improved practicum experience, and (3) to develop and situate practices in the schools. It concludes that the efforts to change within teacher education will not be easy, but needful; else the ultimate losers are the future teachers and their students.     

Teacher adaptation to flexible learning environments

Learning Environments Research - Teaching practices respond to the prompts, resources and inherent potential of a school’s physical, social and cultural landscape. This study involved how...