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1.
Abstract

The purpose of this study was to examine the effect of parental involvement in a school-based program about exercise and nutrition. One fifth grade and one sixth grade class were randomly assigned to each of the three different treatment conditions, a school-and-home condition (n = 45), a school-only condition (n = 43), and a control condition (n = 44). In the school-and-home condition, the children's parents were also asked to participate in nutritional and exercise activities at home as a family “home team.” A multivariate analysis of variance on change scores was completed on the following variables: height, weight, skinfold, sit-and-reach, sit-ups, mile run, exercise knowledge, saturated fat, cholesterol, percent calories from fat, percent calories from carbohydrates, and nutrition knowledge. There was a significant difference among groups. The school-and-home and school-only groups showed significantly greater improvement than the control group but were not significantly different from each other. Univariate analyses on posttest scores indicated that the school-and-home children scored significantly higher than the control group on sit-and-reach flexibility and nutrition knowledge. The results indicate that including the family was primarily effective in facilitating children's improvements in flexibility and nutrition knowledge rather than in diet and exercise behaviors.  相似文献   

2.
健身运动对青春期女孩身体成分发育的影响   总被引：12，自引：0，他引：12  
通过测量肱三头肌位和肩胛下角位皮褶厚度,分析身体组成,探讨健身运动对青春期女孩发育的影响.结果发现皮褶厚度随年龄的增长而增加;健身组皮褶厚度及体脂%均低于安静组,且皮褶厚度在12～16岁具显著性差异;安静组体重的增加较多地来自皮下脂肪的增长,而健身组较多地来自去脂体重的增加.提示,女孩皮下脂肪在青春期持续迅速积累,健身运动可使体脂肪含量降低,骨骼、肌肉等去脂体重成分增长,健身运动对12～16岁间女孩对皮下脂肪发育的影响较明显.  相似文献   

3.
The purpose of this study was to determine the effectiveness of storyboarding (i.e., participants' written narrative) on improving fitness among university employees over 10 weeks. Groups consisted of storytelling during the program orientation, storytelling plus two coaching sessions, or the normal program only (control). Using difference (pretest from posttest) scores, a one-way multivariate analysis of variance indicated significant differences between groups (p < .01). For percent body fat, only the coached group was statistically superior to the control group (p < .03), while the two experimental groups were statistically similar. For submax VO2, both storyboarding groups were superior to the control group (p < .04). It was concluded that storyboarding may be an effective means for changing selected health behaviors.  相似文献   

4.
Abstract

The purpose of this study was to test the validity of the games for understanding model by comparing it to a technique approach to instruction and a control group. The technique method focused primarily on skill instruction where the skill taught initially was incorporated into a game at the end of each lesson. The games for understanding approach emphasized developing tactical awareness and decision making in small game situations. Two physical education specialists taught field hockey using these approaches for 15 lessons (45 min each). The control group did not receive any field hockey instruction. Data were collected from 71 middle school children. Pretests and posttests were administered for hockey knowledge, skill, and game performance. Separate analyses of variance or analyses of covariance were conducted to examine group differences for cognitive and skill outcomes. The games for understanding group scored significantly higher on passing decision making than the technique and control groups during posttest game play and significantly higher than the control group for declarative and procedural knowledge. The games for understanding group scored significantly higher on control and passing execution than the other groups during posttest game play. For hockey skill, there were no significant differences among the treatment groups for accuracy, but the technique group recorded faster times than the control group on the posttest.  相似文献   

5.
夏秀祯  窦喆 《体育科学》2005,25(9):24-28
就奥林匹克教育计划对香港、北京两地学生作用的效果进行比较研究。结果显示:经12周的实验后,无论香港还是北京的活动实验组,在奥林匹克知识方面都获得了极大的提高。同时,教师也在体育课上越来越多地讲授相关的奥林匹克知识(P<0.01)。在培养学生公平竞争和行为的道德观念方面,香港地区的理论实验组和活动实验组在道德理性和行为方面的得分远远高于对照组(P<0.01)。北京的活动实验组在道德取向方面的得分远远高于对照组和理论实验组(P<0.01),而活动实验组和理论实验组在道德行为方面的得分远远高于对照组(P<0.01)。实验后两地区间的所有变量并不存在显著性差异。  相似文献   

6.
The purpose of this study was to test the validity of the games for understanding model by comparing it to a technique approach to instruction and a control group. The technique method focused primarily on skill instruction where the skill taught initially was incorporated into a game at the end of each lesson. The games for understanding approach emphasized developing tactical awareness and decision making in small game situations. Two physical education specialists taught field hockey using these approaches for 15 lessons (45 min each). The control group did not receive any field hockey instruction. Data were collected from 71 middle school children. Pretests and posttests were administered for hockey knowledge, skill, and game performance. Separate analyses of variance or analyses of covariance were conducted to examine group differences for cognitive and skill outcomes. The games for understanding group scored significantly higher on passing decision making than the technique and control groups during posttest game play and significantly higher than the control group for declarative and procedural knowledge. The games for understanding group scored significantly higher on control and passing execution than the other groups during posttest game play. For hockey skill, there were no significant differences among the treatment groups for accuracy, but the technique group recorded faster times than the control group on the posttest.  相似文献   

7.
目的:初步探索农村地区学前儿童基本动作发展情况,以Newell的约束模型(constraints model)为理论基础,为学前儿童设计发展适宜性的身体活动,并检验为期8周的体育教学活动对幼儿基本动作发展的影响。方法:以山东省潍坊市某农村幼儿园学前儿童(n=109)为研究对象,以班为单位随机分配到实验组(n=54)和对照组(n=55)。实验组儿童参与为期8周的动作技能发展课程,对照组儿童参与幼儿园正常的教学活动。课程开始前和结束后一周内,采用TGMD-2对受试儿童进行测试。结果:1)研究中农村儿童的移动技能和物体控制技能的基线均显著低于TGMD-2的常模。2)经8周基本动作教学,实验组的后测GMQ显著高于对照组(P<0.001),对照组的GMQ在实验前后没有显著差异(P=0.087)。3)性别对教学干预无显著影响(P=0.703);实验组的后测移动技能和物体控制技能得分均显著高于对照组的后测成绩(P<0.001)。结论:研究中农村幼儿的基本动作发展相对滞后,物体控制技能发展水平低下是主要来源;为期8周的基本动作教学活动能够有效地促进农村学前儿童基本动作技能的发展。  相似文献   

8.
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9.
BackgroundIncreasing caloric expenditure in physical education is considered an effective school-based approach to addressing the child obesity epidemic. This study was designed to determine synergistic influences of student characteristics and lesson factors on caloric expenditure in elementary and middle school physical education.MethodsThe study used a multi-level design. Level-1 factors included personal characteristics: age, gender, and body mass index. Level-2 factors included lesson length, content, and school level. Based on the Center for Disease Control and Prevention age–gender adjusted growth chart, students in 87 classes from 14 elementary and 15 middle schools were pre-screened into “Overweight”, “Healthy weight”, or “Thin” groups. One boy and one girl were randomly selected from each group in each class as data providers (264 elementary and 294 middle school students). Caloric expenditure was measured in 243 physical education lessons using accelerometers.ResultsAnalysis of variance revealed and hierarchical linear modeling confirmed separate age by body mass index, age by gender, and content by lesson–length interaction effects, suggesting that the personal and lesson factors influenced caloric expenditure independently. Older male and heavier students burned more calories in all lessons. Students burned more calories in 45–60 min sport skill or fitness lessons than in shorter (30 min) or longer (75–90 min) game or multi-activity lessons.ConclusionsThe hypothesized cross-level interaction was not observed in the data. Caloric expenditure can be optimized in 45–60 min sport skill or fitness development lessons. It can be recommended that schools adopt 45–60 min lesson length and provide skill and fitness development tasks in physical education to maximize caloric expenditure.  相似文献   

10.
Abstract

Blood plasma cholesterol levels were followed in six experimental and six control subjects during a five-week training program (two-mile run for time, five days per week) and an eight-week detraining period. Plasma cholesterol levels were determined by the Duboff-Stevenson ultramicro method.

Plasma cholesterol levels were significantly reduced during the course of intensive training. A temporary rise in plasma cholesterol occurred during exercise, probably indicative of fat mobilization and ultimate utilization during physical exercise. Plasma cholesterol levels returned to pretraining levels within four weeks after training was stopped. The diurnal and weekly blood cholesterol variations were rather small, 2 percent and 2.7 percent, respectively.

The pathways by which exercise assists in the lowering of plasma cholesterol levels are discussed.  相似文献   

11.
ABSTRACT

Purpose: To create a high-stress shooting among the crowd (SAC) program and to examine its effectiveness in reducing SWAT trainees’ stress level and their shooting performance in a simulated hostage-rescue situation. Method: After the SAC program was created, it was evaluated using a pretest and posttest experimental design: 98 young male SWAT trainees were randomly divided into experiment and control groups, with the former group trained in hostage rescue, shooting with real persons (high stress), and the latter group trained with “dummy” men (low stress); training for both lasted three days. Their shooting performance was assessed by a tactical shooting test in both high- and low-stress tests in a counterbalanced order, before and after the training, and monitored during the training, as were their stress levels by a set of physical (heart rate [HR] and heart rate recovery time [HRRt]), psychological (salivary cortisol and α-amylase), and self-reported anxiety measures. Results: The SAC program created needed high-stress for hostage rescue situations as reflected in increased physical, psychological, and anxiety scores and reduced shooting performance. Even with short SAC training, SWAT trainees’ capacity in handling high stress and tactical shooting performance were significantly improved. HR, HRRt, and anxiety tests have been found to be effective in monitoring stress and should be a part of future SWAT training. Conclusion: A SAC program involving real people was created, and its effectiveness was confirmed using a pretest and posttest experimental design.  相似文献   

12.
Abstract

The purpose of the study was to determine the effects of 15, 30, and 45 min of conditioning on maximum performance and cardiorespiratory fitness variables, body composition, pulmonary function, and serum lipids. Subjects, ages 20 to 35, were 59 inmates at a California state prison. The conditioning included running and walking and was performed three days/week at approximately 85 to 90% max HR for 20 weeks. The distance covered per exercise session was approximately 1.75, 3.25, and 5.1 miles for the 15-, 30-, and 45-min groups, respectively.

Improvements in treadmill performance time. [Vdot]O2 max, max O2 pulse, diastolic blood pressure, and total skinfold fat were proportional to duration of the training session; i.e., the subjects training in the longer duration sessions showed the greater improvements. The control group showed no significant change during the same period. Compared to the control group, the 15-min group made significant reductions in resting HR, total skinfold fat, percent fat, and waist girth and increases in [Vdot]O2 max, max O2 pulse,[Vdot]E max, and treadmill performance time. Vital capacity, FEV1.0, and % FEV1.0 remained relatively unchanged in all four groups, as did serum cholesterol and triglycerides. The 45-min group improved significantly more than the 15-min group in treadmill time, [Vdot]O2 max, max O2 pulse, resting systolic and diastolic blood pressures, and percent fat. In general, comparisons between the 15- and 30-min groups and between the 30- and 45-min groups failed to yield statistically significant differences.  相似文献   

13.
探讨幼儿足球对幼儿粗大动作发展水平的影响,为干预幼儿粗大动作发展提供依据。选取嘉兴市108名5~6岁幼儿为受试对象,以班级为单位随机分为干预组与对照组。干预组进行12周幼儿足球游戏活动教学,2次*40min/周;对照组幼儿为静态性的课堂班级活动。干预前后采用PGMQS测量幼儿位移能力、操控能力及平衡能力。采用独立样本t检验、配对样本t检验及协方差分析两组幼儿前后测结果的差异性。结果显示:①干预前,两组幼儿粗大动作发展水平无显著性差异(P>0.05);干预后,两组幼儿粗大动作发展水平存在显著性差异(P<0.05),干预组高于对照组。②干预组和对照组幼儿后测结果与前测结果间均存在显著性差异(P<0.05),后测结果高于前测。研究结果表明幼儿粗大动作发展存在延长效应,但结构化幼儿足球游戏活动明显提高了幼儿粗大动作发展水平。因此建议抓牢幼儿早期动作发展的敏感期,以动作发展为主线科学设计幼儿足球游戏活动并保证活动的顺利开展,为幼儿健康、全面发展奠定良好的基础。  相似文献   

14.
目的：探讨运动与CLA对青春期肥胖大鼠内脏脂肪及肝肾功能的影响。方法：高脂饲养大鼠建模7周后,取24只肥胖大鼠随机分成4组,每组6只,分别为对照组、CLA组、运动组、运动＋CLA组。运动方案为跑台坡度0°,速度为21-25 m/min,总运动时间60min/天,5次/周,给药方案为运动后即刻灌喂1.6g/kg剂量的CLA,共持续干预8周。干预结束后麻醉大鼠采集血液及组织,测肝肾功能和内脏脂肪重量。结果：8周干预后,运动组、运动＋CLA组的体重、内脏脂肪重量及体脂率均明显低于对照组、CLA 组（P＜0.01,P＜0.05）,对照组和CLA组无明显差异（P〉0.05）;对照组、运动组、运动＋CLA组谷草转氨酶和谷草丙比数值明显高于CLA组（P＜0.01）,其他组别之间无明显差异（P＞0.05）;运动组、运动＋CLA组血尿素氮和肌酐较对照组、CLA 组有变化,但无明显差异（P＞0.05）。结论：8周运动与 CLA干预可有效降低青春期肥胖大鼠体重、内脏脂肪重量、体脂率,运动结合CLA能显著减少内脏脂肪含量,增加瘦体重,降低体脂率,具有明显的减肥效果。运动和CLA干预有一定的保肝作用,对肾脏功能无明显影响。  相似文献   

15.
This study evaluated the effects of a three-year exercise program on motor performance and cognitive processing speed of previously sedentary older women, ages 57-85. Variables tested were simple and choice reaction time (CRT), balance, sit and reach flexibility, shoulder flexibility, and grip strength. Subjects participated three times a week in exercise performance classes designed to meet American College of Sports Medicine guidelines. Results indicate that performance was significantly improved on all measures during the course of the study (p less than .01) except for the sit and reach test (SRT), where significance was approached (p less than .027), but not reached. A comparison of the exercise subjects with a comparable group of nonexercising control subjects revealed significant interactions between treatment and time on all variables except CRT and grip strength. Pretest to posttest scores of the exercise subjects tended to improve over the three-year period, whereas the scores of the control subjects declined. Improved reaction time indicated exercise is effective in reversing or at least slowing ceratin age-related declines in motor performance and in speed of cognitive processing.  相似文献   

16.
The Model of Competence Motivation (Harter, 1978) highlights how self-perceptions are influenced by individual and socialization factors. Using this model, the present study investigated, quantitatively with a pretest and posttest design (N = 34) and qualitatively via individual interviews (N = 8), how involvement in the Girls on Track program (GOT) influenced the perceived competence and self-worth of sixth-grade girls. GOT is a program that uses training for a 5-km race as a means to teach life skills. The self-perceptions of the participants showed increasing trends from pre- to posttest. Interviewed girls discussed their acquisition of interpersonal skills and of positive feelings about themselves. The discussion emphasizes how program involvement can influence the development of self-perceptions in early adolescent girls.  相似文献   

17.
观察不同运动处方锻炼对单纯性肥胖女大学生减脂及心脏功能的效果。将30名受试者随机分为对照组、综合锻炼组和简易锻炼组,分别于实验前后测体重、体脂百分比(PBF)、躯干脂肪质量(TFM)评价减脂效果;测心率(HR)、每搏量(SV)和左心室有效泵力绝对值(VPE)评价心脏功能。结果表明:实验后,综合组与简易组的体重、PBF、TFM、HR均明显低于实验前和对照组(P<0.01);简易组的SV明显高于实验前和对照组(P<0.01);综合组的SV与实验前和对照组相比也明显升高(P<0.05);简易组的VPE明显大于实验前和对照组(P<0.01);综合组的VPE与对照组的各项指标均未见显著性改变。  相似文献   

18.

Purpose: The purpose of this study was to examine the relative effectiveness of 2 forms of physical education instruction on students' skill and technical performance, as well as content knowledge in 3 track and field events. Method: Students from 6 classes in 3 Portuguese schools completed 900-min units conducted under the auspices of sport education or a more traditional teacher-directed format. Classes were randomly assigned to these conditions within each school. Results: Although both groups improved significantly from pretest to posttest, the sport education classes outperformed the traditional classes in both technique and skill execution. Only the sport education group made significant improvements in content knowledge. When the students in the traditional group were tested at the point in time where they would usually complete a unit of physical education (450 min), there were no significant improvements in any of the study's variables. Conclusion: The explanation given for the superior performance outcomes of the sport education classes lies in the nature of formal competition and team affiliation, which are cornerstones of this pedagogical model. That is, students take their learning experiences more seriously than in traditional and often inauthentic classes. In terms of content knowledge, the fact that sport education has a level of content-embedded accountability that holds students accountable for their officiating duties is postulated as a significant contributor to their increased understanding of rules and protocols of athletic events.  相似文献   

19.
姚强 《体育科技》2010,31(4):102-105
目的：研究附加体育锻炼对肥胖大学生的作用,建立有效的体育锻炼方式作为控制大学生肥胖的有效策略,以期减少肥胖对健康和社会的长期影响。方法：50名18-19岁正德职业技术学院健康男性肥胖学生,随机分为控制组（n=25）和运动组（n=25）,两组均参加学校每周两次的体育课,运动组附加一个为期12周,每周3次的混合有氧训练和力量训练的综合锻炼计划。在实验前后对50名学生的体成分、血清C反应蛋白和血脂进行分析。结果：实验结束后,控制组的体重明显高于运动组,且BMI指数没有显著性变化;运动组的体成分、血清C反应蛋白和血脂均得到显著改善。结论：一周两次的高校体育课程对控制大学生肥胖无效;而该附加体育锻炼计划对控制大学生肥胖具有较好的效果。  相似文献   

20.
This study aims to evaluate the effectiveness of two school-based physical education (PE) programmes (exercise-based and games-based) compared with traditional PE, on health- and skill-related physical fitness components in children in Tirana, Albania.

Participants were 378 first-grade (6.8 years) and 389 fourth-grade (9.8 years) children attending four randomly selected schools in Tirana. Twenty-four school classes within these schools were randomly selected (stratified by school and school grade) to participate as exercise group (EG), games group (GG) and control group (CG). Both EG and GG intervention programmes were taught by professional PE teachers using station/circuit teaching framework while CG referred to traditional PE school lessons by a general teacher. All programmes ran in parallel and lasted 5 months, having the same frequency (twice weekly) and duration (45 min). Heart rate (HR) monitoring showed that intensity during PE lessons was significantly higher in the intervention groups compared with control (P < 0.001). Both PE exercise- and games programmes significantly improved several health- and skill-related fitness indicators compared with traditional PE lessons (e.g. gross motor skill summary score: 9.4 (95% CI 7.9; 10.9) for exercise vs. control and 6.5 (95% CI 5.1; 8.1) for games vs. control, cardiorespiratory fitness: 2.0 ml O2 · min?1 · kg?1 (95% CI 1.5; 2.4) for exercise vs. control and 1.4 ml O2 · min?1 · kg?1 (95% CI 1.0; 1.8) for games vs. control). Furthermore, compared to games-based PE, exercise-based PE showed more positive changes in some gross motor coordination skills outcomes, coordination skills outcomes and cardiorespiratory fitness. The results from this study show that exercise- and games-based PE represents a useful strategy for improving health- and skill-related physical fitness in Albanian elementary school children. In addition, the study shows that exercise-based PE was more effective than games-based PE in improving gross motor function and cardiorespiratory fitness.  相似文献   

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