The Physiologic Response of Exercising in the Water and on Land with and without the X1000 Walk 'N Tone Exercise Belt

Abstract

Study of the physiological effects of exercise that decreases lower joint impact is needed. Participants (N = 18) were exposed to either land or water exercise that included or did not include wearing a belt. Physiological variables of caloric expenditure, net oxygen cost, net oxygen pulse, and heart rate were assessed A 2 × 2 (Environment × Belt) analysis of variance (ANOVA) revealed a significant environment main effect for net oxygen cost and caloric expenditure. Water actually decreased the energy cost of the exercise. A 2 × 2 × 4 (Environment x Belt x Time) ANOVA revealed a significant environment main effect for net oxygen cost and caloric expenditure. Specifically, land heart rates increased over time, whereas water heart rates did not.     

The Politics of Search: A Decade Retrospective

In “Shaping the Web: Why the Politics of Search Engines Matters,” Introna and Nissenbaum (2000) introduced scholars to the political, as well as technical, issues central to the development of online search engines. Since that time, scholars have critically evaluated the role that search engines play in structuring the scope of online information access for the rest of society, with an emphasis on the implications for a democratic and diverse Web. This article describes the thought behind search engine regulation, online diversity, and information bias, and it places these issues within the context of the technical and societal changes that have occurred in the online search industry. The author assesses which of the initial concerns expressed about online search engines remain relevant today and discusses how technical changes demand a new approach to measuring online diversity and democracy. The author concludes with a proposal to direct the research and thought in online search going forward.     

Undergraduates’ conceptions of mathematics teaching and learning: an empirical study

Educational Studies in Mathematics - Previous research in mathematics education has explored teachers’ conceptions of mathematics and its teaching and learning, and how their instructional...     

“I Need You to Show Me:” Coaching Early Childhood Professionals

Early Childhood Education Journal - In most states, Early Childhood Educators (ECEs) with a Birth-Kindergarten teaching license serve as both the general education teacher and special education...     

Effect of different number of players and training regimes on physiological and technical demands of ball-drills in basketball

This study aimed to analyse the effects of two factors (number of players and training regimes) on players’ physiological and technical demands in basketball ball-drills. Twenty-one young basketball players performed four different ball-drills (two levels for each factor). The number of players involved was 2vs2 and 4vs4, while ball-drill regimes were continuous and intermittent. Physiological demand was assessed using the percentage of maximal heart rate (%HR_max), Edwards’ training load and rating of perceived exertion (RPE). Furthermore, the following technical actions were collected: dribbles, steals, rebounds, turnovers, passes (total, correct, wrong and % of correct pass) and shots (total, scored, missed and % of made shot). A 2 × 2 (number of players × regime) two-way ANOVA with repeated measures was applied for physiological parameters and technical actions. The 2vs2 condition showed higher %HR_max (P < 0.001), Edwards’ training load (P < 0.001), RPE (P < 0.001), number of dribbles (P < 0.001), rebounds (P < 0.001), passes [total (P = 0.005) and correct (P = 0.005)] and shots [total (P < 0.001) scored (P < 0.001) and missed (P < 0.001)] than 4vs4. Moreover, the continuous regime revealed higher %HR_max (P < 0.001), Edwards’ training load (P < 0.001), RPE (P = 0.006) and dribbles (P < 0.001) than the intermittent regime. This study showed that both number of players and regime are useful variables able to modify basketball ball-drills workload.     

Examining Arizona’s Policy Response Post Flores v. Arizona in Educating K–12 English Language Learners

This article provides an analysis of Arizona’s policy response in educating English language learners by conducting a narrative review. A critical Latina/o theory approach was used to analyze the data. This study reveals 5 salient policy responses: (a) severely limit bilingual education, (b) develop controversial funding solutions, (c) implement a segregated 4-hr English language development block, (d) mandate structured English immersion–focused teacher preparation, and (e) develop disputed identification and classification instruments. The available data suggest that these policies have negatively impacted the educational experience and academic attainment of English language learners.     

Chinese and US Middle-School Science Teachers' Autonomy,Motivation, and Instructional Practices

This study examined Chinese and US middle-school science teachers' perceptions of autonomy support. Previous research has documented the link between teachers' perceptions of autonomy and the use of student-oriented teaching practices for US teachers. But is not clear how the perception of autonomy may differ for teachers from different cultures or more specifically how motivation factors differ across cultures. The survey measured teachers' motivation, perceptions of constraints at work, perceptions of students' motivation, and level of autonomy support for students. Exploratory factor analysis of responses for the combined teacher sample (n?=?201) was carried out for each of the survey assessments. Significance testing for Chinese (n?=?107) and US (n?=?94) teachers revealed significant differences in teachers' motivation and perceptions of constraints at work and no significant differences for perceptions of students' motivation or their level of autonomy support for students. Chinese teachers' perceptions of constraints at work, work motivation, and perceptions of student motivation were found to significantly predict teachers' autonomy support. For the US teachers, teacher motivation was the only significant predictor of teachers' autonomy support. A sub-sample of teachers (n?=?19) was interviewed and results showed that teachers in both countries reported that autonomy was important to their motivation and the quality of science instruction they provided to students. The primary constraints on teaching reported by the US teachers related to materials and laboratory space while the Chinese teachers reported constraints related to the science curriculum and standards.     

A survey of intrafamilial sexual abuse treatment centers: Implications for intervention

This study was devised to determine the attitudes of treatment professionals regarding desirable therapeutic approaches for intervening in incestuous family systems. A survey of treatment centers currently providing services for the treatment of intrafamilial sexual abuse in the United States was undertaken. A questionnaire was developed to ascertain preferred methods and modalities of treatment of family sexual abuse. Current methods of treatment were identified and inquiries were made regarding what programs presently offer in terms of treatment. An inventory of 30 questions was mailed to 58 treatment professionals and/or treatment programs included in the study. A response rate of 62% was achieved. Treatment centers primarily offered treatment for family sexual abuse on an outpatient basis and staff composition was interdisciplinary in nature (psychology, nursing, marriage and family therapy, social work and psychiatry). An average of 137 cases of family sexual abuse were treated annually per treatment program, with the daughter or the stepdaughter being the family member most often sexually abused. Further findings were the following: (1) treatment programs stressed group treatment for offenders as the most effective therapeutic intervention, yet group treatment of offenders was not offered by treatment programs as frequently as other types of treatment; (2) an interdisciplinary team approach to treatment of incest cases was preferred, suggesting the need for more than one therapist working with each family sexual abuse case: (3) court intervention was seen as necessary to facilitating the treatment process by 79% of the 36 questionnaires returned; (4) family therapy was expressed as a preferred and essential component to the treatment process with incest cases—yet actual implementation of family therapy treatment was clearly not uniform across treatment programs; (5) the most critical finding of this survey is that there was a consensus among clinicians that there is no one sequence of treatment, and that it varies according to the specifics of each family. Regardless of theoretical orientation, the majority of respondents believe that a comprehensive family systems approach is advantageous to the goal of determining whether the family can and wants to rehabilitate itself.     

Children's adjustment problems in families characterized by men's severe violence toward women: Does other family violence matter?

ObjectiveThis research examined whether additional forms of family violence (partner-child aggression, mother-child aggression, and women's intimate partner violence [IPV]) contribute to children's adjustment problems in families characterized by men's severe violence toward women.MethodsParticipants were 258 children and their mothers recruited from domestic violence shelters. Mothers and children completed measures of men's IPV, women's IPV, partner-child aggression, and mother-child aggression. Mothers provided reports of children's internalizing and externalizing behavior problems; children provided reports of their appraisals of threat in relation to interparent conflict.ResultsAfter controlling for sociodemographics and men's IPV: (1) each of the additional forms of family violence (partner-child aggression, mother-child aggression, and women's IPV) was associated with children's externalizing problems; (2) partner-child aggression was associated with internalizing problems; and (3) partner-child aggression was associated with children's threat appraisals. The relation of mother-child aggression to externalizing problems was stronger for boys than for girls; gender differences were not observed for internalizing problems or threat appraisals.ConclusionsMen's severe IPV seldom occurs in the absence of other forms of family violence, and these other forms appear to contribute to children's adjustment problems. Parent-child aggression, and partner-child aggression in particular, are especially important. Systematic efforts to identify shelter children who are victims of parental violence seem warranted.Practice implicationsMen's severe IPV seldom occurs in the absence of other forms of family violence (partner-child aggression, mother-child aggression, and women's IPV), and these different forms of family violence all contribute to children's adjustment problems. Treatment programs for children who come to domestic violence shelters should address these different forms of family violence, especially parent-child aggression.     

Reading skills in early readers: genetic and shared environmental influences

The present study combined parallel data from the Northeast-Northwest Collaborative Adoption Projects (N2CAP) and the Western Reserve Reading Project (WRRP) to examine sibling similarity and quantitative genetic model estimates for measures of reading skills in 272 school-age sibling pairs from three family types (monozygotic twins, dizygotic twins, and unrelated adoptive siblings). The study included measures of letter and word identification, phonological awareness, phonological decoding, rapid automatized naming, and general cognitive ability. Estimates of additive genetic effects and shared environmental effects were moderate and significant. Furthermore, shared environmental effects estimated in twins were generally similar in magnitude to adoptive sibling correlations, suggesting highly replicable estimates across different study designs.