Recovery Responses to Maximal Exercise in Healthy-Weight Children and Children With Obesity

Purpose: The purpose of this study was to examine differences in heart rate recovery (HRRec) and oxygen consumption recovery (VO₂ recovery) between young healthy-weight children and children with obesity following a maximal volitional graded exercise test (GXTmax). Method: Twenty healthy-weight children and 13 children with obesity completed body composition testing and performed a GXTmax. Immediately after the GXTmax, HRRec and VO₂ recovery were measured each minute for 5 consecutive minutes. Results: There were no statistically significant group differences in HRRec for the 5 min following maximal exercise, Wilks’s Lambda = .885, F(4, 28) = 0.911, p = .471, between the healthy-weight children and children with obesity despite statistically significant differences in body fat percentage (BF%; healthy-weight children, 18.5 ± 6.1%; children with obesity, 41.1 ± 6.9%, p < .001) and aerobic capacity relative to body mass (VO₂ peak; healthy-weight children, 46.8 ± 8.2 mL/kg/min; children with obesity, 31.9 ± 4.7 mL/kg/min, p < .001). There were statistically significant differences in VO₂ recovery for the 5 min following exercise, Wilks’s Lambda = .676, F(4, 26) = 3.117, p = .032. There were no statistically significant correlations between HRRec and body mass index (BMI), BF%, VO₂peak, or physical activity. Conclusions: In a healthy pediatric population, obesity alone does not seem to significantly impact HRRec, and because HRRec was not related to obesity status, BMI, or BF%, it should not be used as the sole indicator of aerobic capacity or health status in children. Using more than one recovery variable (i.e., HRRec and VO₂ recovery) may provide greater insight into cardiorespiratory fitness in this population.     

An interactive method for teaching anatomy of the human eye for medical students in ophthalmology clinical rotations

Much research has shown the benefits of additional anatomical learning and dissection beyond the first year of medical school human gross anatomy, all the way through postgraduate medical training. We have developed an interactive method for teaching eye and orbit anatomy to medical students in their ophthalmology rotation at Duke University School of Medicine. We provide review lectures on the detailed anatomy of the adult human eye and orbit as well as the developmental anatomy of the eye. These lectures are followed by a demonstration of the anatomy of the orbit using conventional frontal and superior exposures on a prosected human cadaver. The anatomy is projected onto a large LCD screen using a mounted overhead camera. Following a brief lecture on clinically relevant anatomy, each student then dissects a fresh porcine (pig) eye under low magnification using a dissecting microscope. These dissections serve to identify structures extrinsic to the eyeball, including extraocular muscle attachments, small vessels, optic nerve stalk, and fascial sheath of the eyeball (Tenon's fascia). Dissection then shifts to the internal anatomy of the eyeball. The size and anatomy of the porcine eye is comparable with that of the human and the dissection provides students with a valuable hands‐on learning opportunity that is otherwise not available in embalmed human cadavers. Students and clinical faculty feedback reveal high levels of satisfaction with the presentation of anatomy and its scheduling early during the ophthalmology clerkship. Anat Sci Educ 2:173–178, 2009. © 2009 American Association of Anatomists.     

Modelling the relationships between teacher working conditions,job satisfaction and workplace mobility

Teacher shortages are a recurring problem in publicly funded schools, in part because of poor retention. Working conditions in schools are an important predictor of teacher job satisfaction and retention, yet research has so far made limited headway in identifying the specific aspects of the working environment which matter. This research uses representative data on state secondary school teachers in England in 2013 to derive an unusually rich set of working conditions variables. Regression analysis is used to model the relationships between working conditions, teacher job satisfaction and turnover intentions. The results show strong associations with the nature of school leadership, whether teachers have received training in the specific subjects they are assigned to teach and scope for career progression within the school. These results are robust to checks for common source bias. The study identifies ways in which schools can improve retention.     

Strategic responses to school accountability measures: It's all in the timing

The adoption of state accountability testing in the 1990s coincided with the movement of some school start dates from September into August. Using data from Wisconsin, this paper connects these phenomena, showing that some low-scoring districts advanced their school start dates to allow their students more time to prepare for exams. I use a 2001 Wisconsin state law that restricted districts to start dates after September 1st to identify the effects of this extra time on student achievement. Extra classroom days are associated with small increases in Math scores for 4th graders, but not average reading or language scores. Extra classroom time may also have increased third grade reading scores for students in the upper portion of the ability distribution.     

Locating Economic Risks for Adolescent Mental and Behavioral Health: Poverty and Affluence in Families,Neighborhoods, and Schools

Research has identified risks of both poverty and affluence for adolescents. This study sought to clarify associations between income and youth mental and behavioral health by delineating economic risks derived from family, neighborhood, and school contexts within a nationally representative sample of high school students (N = 13,179, average age 16). Attending schools with more affluent schoolmates was associated with heightened likelihoods of intoxication, drug use, and property crime, but youth at poorer schools reported greater depressive and anxiety symptoms, engagement in violence, and for male adolescents, more frequent violence and intoxication. Neighborhood and family income were far less predictive. Results suggest that adolescent health risks derive from both ends of the economic spectrum, and may be largely driven by school contexts.     

The Life and Fiction of Antonia Forest

summary In this article, the life and writings of Antonia Forest, who died in 2003, are considered. An attempt is made to put her books into their literary, cultural and religious contexts, and to examine possible reasons for the critical reception of her books during the last 30 years of the twentieth century; from neglect and even disapproval to unstinting praise.     

IMPACT OF AN INTERGENERATIONAL PROGRAM ON BLACK ADOLESCENTS’ ATTITUDES TOWARD THE ELDERLY

This study examines changes in black adolescents’ perceptions of the elderly following participation in an eight‐week intergenerational project. The project matched 19 teenagers with 19 elderly subjects from a large senior citizens center. Using an experimental design, students were matched by age with a control group (n = 20). A 20‐item semantic differential scale and the Children's Perceptions of Aging and Elderly (CPAE) inventory were used to measure attitude change. Posttest results from a matched pair t‐test found significant attitude change in the experimental group: semantic differential (t = 2.8, p < .01); CPAE (t = 4.2, p < .01). Qualitative comments from the youth and elderly participants further indicate positive qualities of the partners program.