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1.
The purpose of this study was to determine the association of somatotype, body composition, and physical performance in 7- through 12-year-old boys. Two objective methods of measuring somatotype, Sheldon's trunk index method and Heath–Carter's anthropometric method, were used. Body composition was estimated as fat and lean body mass from 40K measurement, using a whole-body counter, and from two skinfold thickness measures. Physical performance measures consisted of three tests of running (mile run, 600-yd run and 50-yd dash) and two tests of jumping (standing broad jump and vertical jump). In general, somatotype components had lower correlations with running and jumping variables than did body composition or body size variables such as height, weight, and percent fat. Heath and Carter's third component, derived from the inverse ponderal index, correlated more closely with performance scores than did other components of somatotype. Somatotype components in combination with each other and with body size and body composition variables in a multiple regression analysis indicated little association with running performance, but some association with jumping. Mesomorphy and second component were the least significant somatotype components, as indicated by the standardized regression coefficients.  相似文献   

2.
Abstract

The relationships between selected personality and motor variables in emotionally disturbed children were investigated in 61 male and female children, ages 6 to 13, in residential Re-Ed schools. In addition, reliability estimates were obtained for certain measuring instruments with this special group of subjects. The results revealed that (a) selected personality and motor variables appeared essentially unrelated; (b) grip strength, 50-yd dash, and flexed-arm hang were reliable while sit-ups and 600-yd run-walk were moderately reliable; (c) the arm and leg coordination measures, the four second-order factors of the Children's Personality Questionnaire (CPQ) and Early School Personality Questionnaire (ESPQ), the Self-Esteem Scale, the Body Cathexis Scale, and the Body Cathexis-Short Form all exhibited moderate reliabilities; and (d) the 14 primary factors of the CPQ and ESPQ generally exhibited lower reliabilities.  相似文献   

3.
Abstract

A study was made of the relationship of physique and developmental level, determined by use of the Wetzel Grid, to performance of junior high boys on four fitness tests: pull-ups, 50-yd. dash, standing broad jump, and softball throw. Subjects of different physique groups (heavy, medium, and thin) who were alike developmentally (accelerated, normal, and retarded) differed more markedly in performance than did subjects of different developmental levels who were alike with regard to physique. Subjects who were medium in physique and normal in development were the best performers. Subjects of heavy physique (many overweight) were the poorest performers. This would seem to indicate the need for a restudy of classification methods, particularly when norms are to be used for evaluating performance.  相似文献   

4.
ABSTRACT

Participation in youth sport is positively associated with physical fitness and performance. The purpose of the current study was to examine if physical fitness measures during childhood and early adolescence predicted high school sport participation. Participants included youth in the Michigan State University Motor Performance Study. Measures consisted of the endurance shuttle run, Wells sit-and-reach, jump and reach, standing long jump, agility shuttle run and 30-yard dash. Individual, generalized estimating equation models were used to estimate the association between each measure and the odds of participating in high school sport. For both sexes, the endurance shuttle run and agility shuttle run were related to sport participation. For boys only, the long jump and 30-yard dash were also associated with sport participation. Better physical fitness and performance across several dimensions in childhood, including those related to motor skills, enhanced the likelihood of sport participation in high school.  相似文献   

5.
Abstract

In recent years the classic Margaria step-test for anaerobic power has been largely replaced by bicycle ergometer tests, the most popular of these being the Wingate Anaerobic Test (WAnT). The purpose of this study was to examine the relationship between the WAnT and sprint-run times and to determine the influence of age and weight on the WAnT scores. The 56 male volunteers (age 10–15 years) recruited from a track club and junior high school represented a wide range of athletic abilities. Subjects were tested for anaerobic power (5 sec output) and capacity (30 sec output) using the Wingate test procedures. Wingate scores for anaerobic power and capacity were only moderately correlated with 50 yd dash times (r = ?.53 and ?.53) and with the 600 yd run (r = ?.26 and ?.29). Partial correlations between these variables were lower when age adjusted and higher when adjusted for body weight. Results of this study indicate that the Wingate anaerobic test is only a moderate predictor of dash or run times, but becomes a stronger predictor when WAnT scores are adjusted for body weight. The high correlation of the WAnT with body weight must be taken into account when comparing the anaerobic capacity of individuals. The standing long jump would be the preferred field test of sprint-related ability because of its simplicity, but the Wingate lest has the advantage of providing a quantitative measurement of anaerobic fitness.  相似文献   

6.
Abstract

The relative importance of body size, body composition, cardiovascular-respiratory capacity, and running speed in determining individual differences in performance on 600-yd run and mile run tests was investigated using data on 196 children, ages 7 to 12 years. A multivariate, multistage path model was developed in which height, % fat, [Vdot]O2 max (ml/kg FFW · min) and the 50-yd dash time were postulated as determinants of individual differences on the two distance-running tests. These four independent variables accounted for 71% and 66% of the variance in the 600-yd run and mile run, respectively. All four independent variables had significant associations with the two distance runs when the influence of the other independent variables was taken into account. The 50-yd dash time and % fat were found to be the most important determinants of both distance runs. It was concluded that determinants of the 600-yd run and mile run in elementary-school-age children are complex and that individual differences on these tests reflect a number of attributes in addition to cardiovascular-respiratory capacity.  相似文献   

7.
Abstract

Performance differences between males and females have been attributed to both biological and cultural factors, although the relative significance of each has not been ascertained. Differences in body fatness between males and females has been frequently mentioned as one biological factor responsible for variations in physical performance. In children, it has been shown that boys exhibit slightly higher performance levels than girls until adolescence, when the differences favoring the boys become greater. The purpose of this study was to investigate the relationship between selected physical performance tests and body fatness in preadolescent boys and girls. Measures of age, height, weight, skinfold thicknesses at two sites, and performance scores on the vertical jump, standing broad jump, modified pullup, 40-yard dash, and 400-yard run were obtained on 563 elementary school children. The results of a one-way ANOVA indicated that there was a significant difference between boys and girls on all of the physical performance tests. Although the boys were slightly taller and heavier and scored better than the girls on the performance tests, there was no significant difference between the sexes in the sum of two skinfolds. Separate regression equations for the sum of two skinfolds by performance on each test indicated that, with the exception of the modified pullup test, body fatness was only marginally related to performance. These findings indicated that, although inversely related to the ability to move the total body weight, body fatness was of minimal importance in explaining performance differences between young boys and girls.  相似文献   

8.
Abstract

Students (N = 104) enrolled in four low fitness, one middle fitness, and one high fitness class in basic physical education classes at the University of Connecticut participated in a 4-week program of isometric exercises done with an adjustable nylon belt which was stabilized against various body segments. Low, middle, and high fitness classes were compared in the amount of improvement made in the 5 items in which significant gains had been made. The MWF classes which did 30 min. of isometric exercises for 12 class meetings were compared to the TTh classes which met for 8 class meetings and which did the same isometric exercise program and in addition did stretching exercises and ran a mile.

When all groups were treated together, mean gains of 1.1 in. in the vertical jump, .74 sec. in the agility run, .17 sec. in the 30-yd. dash, 151.9 lb. in the leg lift, and 57.0 lb. in the back lift were made. These were all significant at the 0.005 to the 0.0005 level. Small but significant gains were made in right and left grip, the Fait endurance hang, and the 380-yd. run. The low fitness classes made greater improvements in the leg lift, the vertical jump, and the agility run than did the middle or high fitness groups. The high fitness class made greater improvements in the back lift and in the 30-yd. dash than did the low or middle fitness classes. The classes which did only isometric exercises for a half-hour three times each week for 4½ weeks made greater mean gains in the vertical jump, the agility run, the 30-yd. dash and the back lift than did the classes which met for 60-min. periods twice each week for 4½ weeks and did stretching exercises and running in addition to the isometric exercises. However, the latter made greater gains in the leg lift.  相似文献   

9.
目的:探讨超重肥胖初中生形态、生理特点与运动能力间的关系,了解超重肥胖初中生的运动能力特征,为青少年超重肥胖的运动干预方案设计提供指导。方法:对某中学初中生进行测试,筛选出超重肥胖学生,从中选取40名,在正常学生中选取40名作为对照组进行身体形态及运动能力测试,对测试数据进行统计分析。结果显示:超重肥胖初中生血压偏高;肺活量偏高,但肺活量指数远低于正常初中生;初中生运动能力降低,50m跑,长跑、立定跳等成绩低于正常初中生,而投掷、握力与正常组无差异;通过相关性分析表明,BMI和%BF同50m、长跑、立定跳等相关性显著。  相似文献   

10.
Abstract

Boys (N = 115) in the seventh grade of a junior high school were tested for physical fitness by the AAHPER Youth Fitness Test. In addition, data were collected for age, height, weight, and socioeconomic level of each boy. Two racial groups were formed consisting of 30 white and 30 black students who were matched on age and socioeconomic level. The purpose of this study was to determine whether the physical fitness of white and black students of equal socioeconomic level was significantly different. There were no significant differences between the groups in age, height, weight, and socioeconomic level. The black students exceeded the white students significantly on the shuttle run, 50-yd. dash, 600-yd. run and composite fitness score. It was concluded that black male students of similar socioeconomic level to white students in the seventh grade, have a higher level of physical fitness.  相似文献   

11.
Abstract

This study compared the effects of mobility patterning techniques to the effects of special physical education activities upon selected motor skills of primary school educable mentally retarded children. The experimental group received the appropriate mobility patterns in creeping, crawling, and walking, which later were practiced in game situations. The control group received special physical education activities. Both groups received daily 30-minute classes, Monday through Friday, from September 1966 to December 1966. Based on the differences in leg power as measured by the hurdle jump and the standing broad jump, it appeared that the special physical education activities contributed more to the development of the subjects. However, neither program was more effective than the other in terms of dynamic balance, agility, or fine manual motor coordination.  相似文献   

12.
ABSTRACT

Excess adipose tissue may impact the motor performance of youth. Therefore, the current study examined (a) if adiposityinfluenced performance in the jump and reach and 30-yard dash and (b) if maturation predicted motor performance. Participants (N = 267) included girls aged 8 to 16 years. Latent growth curves were used to assess changes in motor performance. Sum of skinfolds predicted jump and reach performance from age 8.5 to 10.5 years, 11.5–12.0 years, 13.0 years, and from age 14 to 14.5 years (b = ?0.013 to 0.051, p < 0.05). Sum of skinfolds predicted 30-yard dash performance from age 8.5 to 14.0 years and at age 15.5 years (b = 0.003 to 0.005, p < 0.05). Maturation did not predict performance. Future research should examine determinants that explain the link between adiposity and motor performance.  相似文献   

13.
Abstract

A cross-sectional study was carried out to analyse, through a limited number of fitness tests, the main conditioning and coordinative abilities in children aged 8–9 years, and their relationship with gender, anthropometric variables and physical activity habits. The height and weight of 256 boys and 241 girls were measured and information about physical activity habits was collected using a self-administered questionnaire. Physical performance was assessed by means of a few standardised tests: ‘sit & reach’, medicine-ball forward throw, standing long jump, 20 m running speed, and forward roll test. In both boys and girls, body weight and Body Mass Index (BMI) were positively correlated with the medicine-ball throw performances and negatively correlated for the standing long jump and speed tests, while no association was found with tests measuring back flexibility and total body coordination. Daily physical activity and participation in sport were not significantly correlated with body weight and BMI, but were positively associated with children's motor performance. The standardised fitness tests selected in the current study have been found to be suitable to identify fitness levels of primary school children. Thanks to their limited number and ease of measurement, they can be used in any school context to classify children and for monitoring the effects of targeted interventions promoting physical activity.  相似文献   

14.
Abstract

The purpose of this study was to determine the main effects of the sex of the experimenter, the interaction effects of the sex of the experimenter and the sex of the S, and the experimenter bias effect upon 50-yd dash, shuttle run, and sit-up scores. The subjects were 48 male and 48 female junior high students. The experimenters were six male and six female upper-division college students. The subjects were randomly assigned for testing to sex of experimenter and experimenter bias effect. The experimenter bias condition resulted from the fact that the experimenters were led to believe that half of the Ss had particular characteristics that would cause them to score well on the tests while the other half had characteristics that should cause poor performance scores. The significant findings in the study were that male experimenters received much better scores from their Ss than did female experimenters on the sit-up test, that Ss scored better when tested by experimenters of the opposite sex on both the 50-yd dash and shuttle run test, and that experimenters obtained results in the direction of their expectations on the shuttle run test.  相似文献   

15.
用回归分析方法对大学男女生跳远成绩与身体素质的关系进行了统计运算、逐步筛选并建立回归方程。其结果与男生跳远成绩相关的主要因素是 5 0m跑和原地纵跳 ;女生则为 5 0m跑和立定跳远。  相似文献   

16.
Abstract

Twelve anthropometric measures and 23 derived indexes were obtained from 72 girls at each level along with 25 cable tensiometer strength tests which were averaged as the criterion. The measures, indexes, and strength criterion were intercorrelated. The highest multiple correlations with the strength criterion were .822, using height times the cube root of weight and arm girth/thigh girth at the elementary level; .784, using chest girth times standing height and shoulder width at the junior high level; and .607, using arm girth and shoulder width/hip width at the senior high level. Combining all levels gave an r of .844 using age and weight. Anthropometric measures intercorrelated higher for elementary school girls, but the indexes intercorrelated higher at the junior and senior high levels than at the elementary level.  相似文献   

17.
Abstract

This study assessed the effect of five selected treatments of preliminary activity on performance in the 60-yard dash, the cricket ball throw for distance, the jump reach, and the bicycle ergometer test of leg speed. The effect of such preliminary activity at different levels of achievement in the same performance tests was also investigated. An experimental sample of 15- to 17-year-old schoolboys (N = 45) underwent a testing program involving four consecutive days, with two sessions daily. On the basis of measures of pretreatment status, the subjects were matched into groups and subsequently exposed to the treatments. The treatments included identical maximal, identical submaximal, general strengthening, general flexibility and control routines. The statistical analysis of the results involved analysis of variance techniques. There was no evidence available indicating either that the treatments had an effect on the chosen motor performances or that there was a difference in this response at certain levels of achievement. As no measures of physiological function were taken, an assessment of the likely reasons for these findings could not be made.  相似文献   

18.
Abstract

The purpose of this study was to determine the effects of an absence of a warm-up, a warm-up, and a warm-up with leg-elevation recovery techniques on repeated performances of three all-out trials in the 300-yd dash. The subjects were 15 male varsity high school runners who ran a total of nine 300-yd dashes consisting of three trials of each treatment with a 20-min rest period between trials on three different testing days. Approximately two months later the same pattern of nine 300-yd dashes was administered a second time. A randomized blocks factorial design (2 × 3 × 3) was used, followed by tests for simple main effects and Tukey's HSD test. Statistically significant differences at the .05 level were found between the overall means of the two administrations, among the means between the three methods, and among the means between the three trials. A significant interaction among methods and trials was also found. Tests for simple effects coupled with Tukey's HSD test revealed that by the time trial 3 comes about, the warm-up with recovery techniques demonstrated significant superiority of performance over no warm-up.  相似文献   

19.
This study compares the motor skills and physical fitness of school-age children (6-12 years) with visual impairments (VI; n = 60) and sighted children (n = 60). The relationships between the performance parameters and the children's body composition are investigated as well as the role of the severity of the impairment. The degree of VI did not differentially affect the outcomes. Compared to their sighted peers, the children with VI scored lower on the locomotor and object control skills as assessed with the Test of Gross Motor Development-2, and the physical fitness (Eurofit) parameters of plate tapping, the standing broad jump, the modified 5 × 10-m shuttle run, and 20-m multistage shuttle run (20-MST). Their body mass and body fat indexes were inversely correlated with the standing broad jump and the 20-MST, but positively correlated with handgrip strength. Moreover, significant inverse correlations were found between their locomotor and object control skills on the one hand and plate tapping and the 5 × 10-m shuttle run on the other hand. Given the relatively high proportion (25%) of overweight/obese children within the VI sample, educators are recommended to promote health-related activities and help enhance motor skills in this population.  相似文献   

20.
ABSTRACT

There is a positive association between motor competence and physical activity in child populations. Little is known about the relative variance explained in physical activity when process- versus product-oriented approaches are used for evaluating motor competence. This study aimed to examine associations between product- and process-oriented motor competence assessments and their capability to explain variance in physical activity. Participants included 167 children between the ages of 6–9 years. The run, jump, throw and kick were assessed using process-oriented (Test of Gross Motor Development-2nd edition) and product-oriented (run time, jump distance, throw and kick speed) assessments. Physical activity was assessed via Yamax Digi-walker NL2000 pedometers. Weak to strong correlations between process and product assessments were found (range: r = ± 0.01 to ±0.81). Statistically significant correlations between process and product scores were more frequent for the kick and throw. Both product- and process-oriented assessments were poor at explaining variance in pedometer assessed physical activity. No more than 4% of variance in physical activity could be explained by a single skill, regardless of whether product or process scores were used. Continued examination of associations between process- and product-oriented assessments may provide a more holistic understanding of motor competence across developmental time.  相似文献   

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