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Ai-Wen Hwang, Chiao-Nan Chen, I-Chin Wu, Hsin-Yi Kathy Cheng and Chia-Ling Chen

This cross-sectional study investigated the correlates of body mass index (BMI) and risk factors for overweight among 91 children with motor delay (MD) aged 9–73 months. Anthropometric measurements and questionnaires regarding multiple risk factors were obtained. Simple correlations between BMI percentile classifications and potential predictors were examined using Spearman’s rank/Pearson’s correlations and χ2 analysis. Multiple predictors of overweight were analyzed using logistic regression. BMI was correlated positively with higher caloric intake (rs = .21, p < .05) and negatively with passive activity (rs = -.21, p < .05). When multiple predictors were considered, more severe dysphagia (odds ratio [OR], 2.81, p = .027, 95% confidence interval [CI], 1.13–7.04) and antiepileptic drug use (OR, 19.12, p = .008, 95% CI, 2.14–170.81) had significant partial effects on overweight status. Agencies supporting early development should consider caregiver education regarding the potential implication of feeding style and medication on BMI.

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Kerry S. Courneya and Packianatian Cheiadurai

The study was concerned with empirically confirming the proposed classification of the performance measures in baseball into tertiary, secondary, and primary measures based on their proximity to skill execution and task performance and with the extent to which these measures were contaminated by external factors. The data consisted of various performance measures derived from the box scores of games played by 10 teams from the National Collegiate Athletic Association during the 1988 season (N=381 games). For confirmatory purposes» the total sample was subdivided into home and away samples (N=762 observations). The results of correlational and regression analyses supported the proposition that the secondary measures would be more closely related to the tertiary measures than would the primary measures. Further» ran differential was the superior tertiary measure relative to win/loss and ratio of final score in reflecting skill execution and task performance. Practical applications of the model and directions for future research are then discussed.

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Grace Goc Karp, Kay Williamson and Bethany Shifflett

Traditionally, faculty members have had to balance three main components of their work: research, teaching, and service. This balance can be influenced by career stage, personal work orientations, and organizational climate. This study was an exploration of the work roles of physical education teacher educators (PETEs) by gender and tenure status in research or doctoral-granting institutions. A survey was devised to gather information regarding background, workload, institutional expectations, personal skills, sources of support and feedback, and job satisfaction. Respondents (N = 98) from programs cross-referenced with the Carnegie classification system (Carnegie Foundation, 1987), and the Physical Education Gold Book (1987) returned the survey (77% response rate). Frequencies, cross-tabulations, and measures of central tendency and variability for continuous variables were obtained. Results suggested dissonance existed in the areas of research and teaching. Structural ambiguity was evident between institutional values and personal skills, particularly for tenured women.

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Amelia Ferro, Jorge Villacieros and Javier Pérez-Tejero

The purpose of this study was to develop a methodology to accurately analyze sprint performance of elite wheelchair basketball (WB) players in their own training context using a laser system and to analyze the velocity curve performed by the players regarding their functional classification and their playing position. Twelve WB players, from the Spanish men’s national team, took part in an oncourt 20-m-sprint test. BioLaserSport® was used to obtain time, mean velocities (Vm), maximum velocities (Vmax), and distances at 90%, 95%, and 98% of their Vmax. Vm and Vmax reached high values in Classes II and III and in the guard playing position. The protocol developed with the laser system makes it possible to obtain a precise velocity curve in short sprints and allows easy analysis of decisive kinematic performance variables in WB players, showing immediate feedback to coaches and players. The normalized data allow an interpretation of how much, where, and when Vmax occurs along the test.

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Suvobrata Mitra, Polemnia G. Amazeen and Michael T. Turvey

We investigated the 1:1 frequency locking of two hand-held pendulums oscillated parallel to the body's coronal plane. In this configuration, anti-phase defined muscularly is in-phase defined spatially, and vice versa. Coordination equilibria measured by average relative phase were shifted less from muscular anti-phase than from muscular in-phase by detuning (unequal uncoupled pendulum frequencies) and were shifted less in both modes with vision than without. Variability of the equilibria, however, was ordered opposite to their degrees of shift and was unaffected by vision. Demonstrated subcritical pitchfork and tangent bifurcations conformed to the variability classification of anti- and in-phase coordination. Implications for dynamical models, hierarchical control, and definitions of coordination modes were discussed.

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Alison J. Armstrong, Hal Hansen and Roger Gauthier

A theory based model was developed for the evaluation of high performance sport centers (HPSCs) in Canada. The model was developed according to de Groot’s (1969) four-phase interpretative-theoretical methodology. The phases of exploration, analysis, classification, and explanation guided the collection of current program evaluation literature and information on the nature of the HPSC program and its past evaluation practices. Appropriate evaluation models from the literature were assessed with respect to the HPSC program’s nature, and a single theoretical-integrative model was developed with corresponding guidelines for HPSC evaluation. The model is described with reference to (a) the role of evaluation at each stage of the HPSC life cycle, (b) the evaluators and decision makers, (c) utilization of the evaluation information, and (d) a general format for guiding the responsible national sport organizations through the important process of evaluation.

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Carl Gabbard

With studies of motor behavior that feature manual control, it is suggested that the methodology used to select subjects in reference to handedness be reviewed. This suggestion is in view of the recommendation that simply asking subjects to identify their writing hand is inadequate to define handedness. Complementing this are recent findings in neuroscience indicating differences, at times significant, in information-processing behavior based on handedness classification. A brief review of recently published studies in two prominent outlets for motor behavior research confirms that most reports provide minimal (and sometimes no) information regarding handedness and the method used for assessment. Recommendations for addressing the problem include using an acceptable preference inventory, selecting only those subjects with strong lateral characteristics, and briefly describing the methodology used for the reviewing audience.

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Nancy Getchell, Susan McMenamin and Jill Whitall

This study examines gross motor coordination in children with and without learning disabilities using a dynamical systems perspective. In a dual motor task paradigm (walk/clap, gallop/clap), we measured and compared frequency and phase locking and consistency within and across trials in 12 children with learning disabilities and 12 age-matched typically developing children. In the walk/clap condition, groups differed in consistency and in entrainment (increased frequency of 4 limb coupling) over short-term practice. In the gallop/clap condition, groups differed in consistency; neither group showed entrainment. Comparisons within the LD group of participants with and without diagnosed visual-motor problems showed differences in classification, consistency, and entrainment. These results suggest that gross motor coordination tasks provide information about as well as a novel opportunity for early identification of learning disabilities.

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Shinji Sakurai, Bruce Elliott and J. Robert Grove

Three-dimensional (3-D) high speed photography was used to record the overarm throwing actions of five open-age, four 18-year-old, six 16-year- old, and six 14-year-old high-performance baseball catchers. The direct linear transformation method was used for 3-D space reconstruction from 2-D images of the catchers throwing from home plate to second base recorded using two phase-locked cameras operating at a nominal rate of 200 Hz. Selected physical capacity measures were also recorded and correlated with ball release speed. In general, anthropometric and strength measures significantly increased through the 14-year-old to open-age classifications, while a range of correlation coefficients from .50 to .84 was recorded between these physical capacities and ball speed at release. While many aspects of the kinematic data at release were similar, the key factors of release angle and release speed varied for the different age groups.

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Barbara Thomas Coventry

This study explores sex and racial segregation within television sports broadcasting. It uses logit log-linear analysis to examine the relationship between job classifications within sports broadcasting and such explanatory variables as sex and race. The results show that women are concentrated in competition-level reporting and reporting but are underrepresented as studio analysts and play-by-play announcers. People of color are most likely to be found doing competition-level reporting, followed by studio analysis. They are least likely to work as play-by-play announcers. In addition, people of color are virtually limited to broadcasting baseball, basketball, and football. Although Whites also cover these three sports, they occupy practically all of the jobs covering other sports. The findings regarding sex and race support the social closure perspective that argues that women and people of color would be concentrated in lower positions within an occupation.