Correlation of throwing velocity to the results of lower-body field tests in male college baseball players

Baseball-specific athleticism, potential, and performance have been difficult to predict. Increased muscle strength and power can increase throwing velocity but the majority of research has focused on the upper body. The present study sought to determine if bilateral or unilateral lower-body field testing correlates with throwing velocity. Baseball throwing velocity scores were correlated to the following tests: medicine ball (MB) scoop toss and squat throw, bilateral and unilateral vertical jumps, single and triple broad jumps, hop and stop in both directions, lateral to medial jumps, 10- and 60-yd sprints, and both left and right single-leg 10-yd hop for speed in 42 college baseball players. A multiple regression analysis (forward method), assessing the relationship between shuffle and stretch throwing velocities and lower-body field test results determined that right-handed throwing velocity from the stretch position was most strongly predicted by lateral to medial jump right (LMJR) and body weight (BW; R = 0.322), whereas lateral to medial jump left (LMJL; R = 0.688) predicted left stretch throw. Right-handed shuffle throw was most strongly predicted by LMJR and MB scoop (R = 0.338), whereas LMJL, BW, and LMJR all contributed to left-handed shuffle throw (R = 0.982). Overall, this study found that lateral to medial jumps were consistently correlated with high throwing velocity in each of the throwing techniques, in both left-handed and right-handed throwers. This is the first study to correlate throwing velocity with a unilateral jump in the frontal plane, mimicking the action of the throwing stride.

Effectiveness of interventions targeting physical activity, nutrition and healthy weight for university and college students: a systematic review and meta-analysis

To examine the effectiveness of interventions aimed at improving physical activity, diet, and/or weight-related behaviors amongst university/college students. Five online databases were searched (January 1970 to April 2014). Experimental study designs were eligible for inclusion. Data extraction was performed by one reviewer using a standardized form developed by the researchers and checked by a second reviewer. Data were described in a narrative synthesis and meta-analyses were conducted when appropriate. Study quality was also established. Forty-one studies were included; of these, 34 reported significant improvements in one of the key outcomes. Of the studies examining physical activity 18/29 yielded significant results, with meta-analysis demonstrating significant increases in moderate physical activity in intervention groups compared to control. Of the studies examining nutrition, 12/24 reported significantly improved outcomes; only 4/12 assessing weight loss outcomes found significant weight reduction. This appears to be the first systematic review of physical activity, diet and weight loss interventions targeting university and college students. Tertiary institutions are appropriate settings for implementing and evaluating lifestyle interventions, however more research is needed to improve such strategies.

Assessing Australian undergraduate clinical learning

Determining the clinical preparedness of undergraduate nursing students is vital in developing graduates who are ready to assume the roles of registered nurses. This paper reports findings relating to clinical assessment in Australian undergraduate nursing programs. Using data collected in a national survey and selected case studies, current assessment practices are described. Although students were increasingly exposed to a narrower range of clinical experiences, claims to comprehensive preparation of nurses remain prominent. Issues in the congruity between assessment methods and purported outcomes of clinical learning programs are discussed.

Exercise, diet and skeletal muscle gene expression

Skeletal muscle, as a consequence of its mass and great capacity for altered metabolism, has a major impact on whole-body metabolic homeostasis and is capable of remarkable adaptation in response to various physiological stimuli, including exercise and dietary intervention. Exercise-induced increases in skeletal muscle mRNA levels of a number of genes have been reported, due to transcriptional activation and/or increased mRNA stability. The cellular adaptations to exercise training appear to be due to the cumulative effects of transient increases in gene transcription after repeated exercise bouts. The relative importance of transcriptional (mRNA synthesis) and translational (mRNA stability or translational efficiency) mechanisms for the training-induced increases in skeletal muscle protein abundance remains to be fully elucidated. Dietary manipulation, and the associated alterations in nutrient availability and hormone levels, can also modify skeletal muscle gene expression, although fewer studies have been reported. A major challenge is to understand how exercise and diet exert their effects on gene and protein expression in skeletal muscle. In relation to exercise, potential stimuli include stretch and muscle tension, the pattern of motor nerve activity and the resultant calcium transients, the energy charge of the cell and substrate availability, oxygen tension and circulating hormones. These are detected by various cellular signaling mechanisms, acting on a range of downstream targets and a wide range of putative transcription factors. A key goal in the years ahead is to identify how alterations at the level of gene expression are coupled to the changes in skeletal muscle phenotype. It is clear that gene expression, although representing a specific site of regulation, is only one step in a complex cascade from the initial stimulus to the final phenotypic adaptation and integrated physiological response.

Growth of highly versus moderately trained competitive female artistic gymnasts

Purpose: To investigate whether growth was adversely affected in 137 young competitive female artistic gymnasts involved in different training volumes.

Methods: This was a 2-yr prospective cohort study in which height, sitting height, leg length, weight, skinfolds, and pubertal status were measured in competitive advanced (20–27 h·wk-1) and intermediate (7.5–22 h·wk-1) training level female gymnasts every 6–12 months. Biological parameters of the adolescent growth curve were estimated using the Preece–Baines growth model. Growth rates were estimated for both groups from the mixed-longitudinal data.

Results: Estimated ages at peak height velocity (PHV) (13–13.5 yr) and mean PHV (6.2–6.4 cm·yr-1) for the advanced- and intermediate-level gymnasts suggest that these gymnasts were later maturing and experienced a blunting of the growth spurt relative to reference values for U.S. youth. Comparison of growth velocities by pubertal status revealed that height velocity was lower in the advanced- versus the intermediate-level peripubertal gymnasts, which was due to a significant reduction in sitting height velocity (2.3 vs 3.1 cm·yr-1, P. < 0.05). No marked acceleration in height or sitting height velocity was detected in the advanced-level gymnasts from pre- to peripuberty. Inspection of individual growth rates revealed that over 35% of the pre- and peripubertal gymnasts experienced growth faltering (height velocity less than 4.5 cm·yr-1) during follow-up.

Conclusion: Advanced–and intermediate–training level competitive female gymnasts tend to exhibit an adolescent growth spurt that is similar in timing and tempo to short, normal, slowly maturing girls, but the high frequency of growth faltering suggests that training may alter the tempo of growth and maturation in some, but not all, female gymnasts.

`Don`t call me sweetie!` patients differ from nurses in their perceptions of caring

Effective nursing care relies on congruent nurse-patient perception of needs. This study used Q methodology to compare nurses' and patients' perceptions of important nursing care behaviour. Q methodology applies statistical analysis to qualitative data through a technique of comparative rating using a forced choice format. The Care Q Sort, comprising fifty statements of nursing behaviour, was administered to nurses and patients from medical wards. Participants ranked the nursing behaviours from most to least important. Analysis was completed on 74 rankings. There was agreement for many behaviours but bimodal distributions for nurses' scores for some statements which may be attributable to different professional levels. An additional open comments section provided an experiential dimension to the research results. The findings will inform nursing practice and patient care planning.

Place, progress and memory : McGlashan and Everist at Geelong College

Building in an historical setting engages the problem of progress and authentic dialogue between tradition, contemporaneity and visions of a future. Since 1960, McGlashan and Everist have been the sole architects for Geelong College's Talbot Street campus, established in 1871. They have designed its master plans and all new buildings and alterations to the existing eclectic stock. As modernists with a task providing no opportunity for stylistic coherence in an age of universality, the architects were caught between protecting the College's perceived authenticity by continuing its historicist links with English collegiate architecture on the one hand, and their own modernist ethic on the other. Adopting what Frampton has called in his essay, 'Critical Regionalism', an 'arriere-garde' position (an 'identity-giving culture' rather than reversion to the past or to the 'Enlightenment myth of progress'), the architects avoid overt display of nostalgic historicism, modernist tectonics and populism. This paper asks whether and to what extent they have been capable of an authentic dialogue. Have they created an existential place in an 'architecture of resistance' as Frampton would have it, attending sufficiently to 'identity-giving culture' and the future? What is the role of implacement in the problematic of 'progress' in this context and how might it have affected a particular approach and the outcome?

Understanding physical activity environmental correlates : increased specificity for ecological models

Ecological models are now used to understand the complex array of factors that influence physical activity, resulting in a greater emphasis on environmental correlates. This selective review examines whether the predictive capacity of these models could be improved if behavior-specific measures of the environment were used to predict context-specific behaviors.

Multiple types of dieting prospectively predict weight gain during the freshman year of college.

The freshman year of college is a period of heightened risk for weight gain. This study examined measures of restrained eating, disinhibition, and emotional eating as predictors of weight gain during the freshman year. Using Lowe's multi-factorial model of dieting, it also examined three different types of dieting as predictors of weight gain. Sixty-nine females were assessed at three points during the school year. Weight gain during the freshman year averaged 2.1 kg. None of the traditional self-report measures of restraint, disinhibition, or emotional eating were predictive of weight gain. However, both a history of weight loss dieting and weight suppression (discrepancy between highest weight ever and current weight) predicted greater weight gain, and these effects appeared to be largely independent of one another. Individuals who said they were currently dieting to lose weight gained twice as much (5.0 kg) as former dieters (2.5 kg) and three times as much as never dieters (1.6 kg), but the import of this finding was unclear because there was only a small number of current dieters (N=7). Overall the results indicate that specific subtypes of dieting predicts weight gain during the freshman year better than more global measures of restraint or overeating.

ACCCN national nursing workforce survey of intensive care units

A descriptive study was designed and implemented by the Australian College of Critical Care Nurses (ACCCN) Workforce Planning Advisory Committee to capture data pertaining to workforce issues of intensive care nurses. All intensive care units (ICUs) within Australia were mailed a self reporting survey. Despite a low response rate (52 per cent) and difficulty reported by respondents in gaining the appropriate data requested, the results revealed an interesting snapshot of the intensive care nursing workforce.
Types of services offered by units varied considerably; paid overtime hours were low (<2 per cent of total hours worked) and use of both part-time and agency staff was also low (10 per cent of total hours worked). Private hospitals utilised a greater proportion of part-time and agency nursing staff than public hospitals (20:10 per cent). The turnover rate for registered nursing staff was estimated at 18 per cent, with education, skill acquisition and improved communication reported as the major incentives used by managers to attract and retain staff. This study demonstrated that valuable data are currently uncaptured and recommends a more refined process of a national database to record and manage this important information for future workforce planning.

Creatine supplementation reduces muscle inosine monophosphate during endurance exercise in humans

Introduction: Creatine (Cr) supplementation has been shown to attenuate increases in plasma ammonia and hypoxanthine during intense endurance exercise lasting 1 h, suggesting that Cr supplementation may improve muscle energy balance (matching of ATP resynthesis to ATP demand) during such exercise. We hypothesized that Cr supplementation would improve muscle energy balance (as assessed by muscle inosine monophosphate (IMP) accumulation) during intense endurance exercise.

Methods: Seven well-trained men completed two experimental trials involving approximately 1 h of intense endurance exercise (cycling 45 min at 78 ± 1% V̇O_2peak followed by completion of 251 ± 6 kJ as quickly as possible (performance ride)). Subjects ingested approximately 42 g·d^-1 dextrose for 5 d before the first experimental trial (CON), then approximately 21 g Cr monohydrate plus approximately 21 g·d^-1 dextrose for 5 d before the second experimental trial (CREAT). Trials were ordered because of the long washout time for Cr. Subjects were blinded to the order of the trials.

Results: Creatine supplementation significantly (P < 0.05) increased muscle total Cr (resting values: CREAT: 138.1 ± 7.9; CON: 117.7 ± 6.5 mmol·kg^-1 dm). No difference was seen between treatments in any measured muscle or blood metabolite after the first 45 min of exercise. Despite the performance ride completion time being similar in the two treatments (∼13.5 min, ∼86% V̇O_2peak), IMP at the end of the performance ride was significantly (P < 0.05) lower in CREAT than in CON (CREAT: 1.2 ± 0.6; CON: 2.0 ± 0.7 mmol·kg^-1 dm).

Teaching about the Holocaust : essays by college and university teachers

This collection of fourteen essays by renowned scholars in the field of Holocaust studies seeks to reflect on the experience of teaching and researching this complicated and emotional topic. Contained within are the pioneering stories of those presently engaged in the work of Holocaust education. Separately, they represent a variety of disciplines and orientations. Collectively, they give evidence of the strong commitment to continue this important work, and the moral and ethical demands such teaching, writing, and research place upon all who engage in it. Different perspectives from historical, philosophical, and religious frameworks come together to create a unique contribution to the literature on the Holocaust. Educators discuss what they teach, their methodologies and theoretical orientations and reflect on their own journeys that brought them to this field. The unique nature of these stories bring needed background to the field of Holocaust studies and also serve to inspire others to enlarge their thinking and understanding of previous work on this topic. The stories of these committed Holocaust educators will serve to inspire a new generation of thinkers, writers, and activists to engage in such work. In reading their stories, their collective commitment to make a difference today and tomorrow shines through. This volume will be a valuable resource for courses in the Holocaust, contemporary post-Holocaust realities, as well as courses in genocide. Scholars and anyone with an interest in enriching their understanding of the Holocaust will find much within to inspire them and provoke new ideas.