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1.
Abstract

This study was designed to investigate the differences in four personality traits between Negro and white athletes and nonathletes utilizing the Gordon Personal Profile. Six hypotheses, all stated in the null form, were used in comparing the different groups. A total of 111 subjects were divided into four groups based upon their ethnic background and athletic ability. The results produced seven significant differences at the .05 level: three between white athletes and white nonathletes; one between Negro varsity athletes and Negro nonathletes; and three between white varsity athletes and Negro nonathletes. These results suggested that white varsity athletes were significantly different and ranked higher in Ascendancy, Responsibility, and Emotional Stability traits when compared to Negro and white nonathletes. They also suggested that Negro varsity athletes were significantly different and ranked higher in Responsibility when compared to Negro nonathletes. No significant differences occurred when white varsity athletes and Negro varsity athletes were compared; when Negro varsity athletes and white nonathletes were compared; or when Negro nonathletes and white nonathletes were compared.  相似文献   

2.
A longitudinal study was conducted on 398 athletes and 369 nonathletes who were born before 1920 and attended Michigan State University. The subjects were compared to determine if intercollegiate athletic competition accounts for significant variation in longevity when considered with somatotype. Because some of the subjects were still alive at the time of the study, the BMDP Statistical Software was used to do a survival analysis with covariates. Preliminary comparisons considered the differences in somatotype between athletes and nonathletes. Two sample t-tests indicated that athletes were more mesomorphic and less ectomorphic (p less than .05) than nonathletes. When comparing the relationship between somatotype and longevity, the pooled data of athletes and nonathletes indicated that endomorphs were shorter lived than the other three comparison groups. When only the athletes were considered, similar results were found. However, the nonathlete group exhibited differences only between the mesomorphic and endomorphic groups. The endomorphs were shorter lived. Longevity was examined by using the Cox proportional hazards regression method with somatotype and athlete/nonathlete status as covariates. Somatotype, by itself, was found to be significantly related to longevity, (p less than .001). Athletic status was not significantly related to longevity, either by itself or when entered into the model with somatotype.  相似文献   

3.
The 100 ms ruling for false start disqualification at athletic competitions governed by the International Association of Athletics Federations has been in force since the early 1990s. Throughout this period, there have been marked changes to the rules that govern the disqualification of athletes from sprint events incorporating starts from blocks. This study analysed all available World and European Championship response-time (RT) data from 1999 to 2014 to examine effects of rule changes on competition RT at major championships. The exponentially modified Gaussian distribution was used to model RT and make comparisons relative to athletes’ sex, ruling periods and competition rounds. Revised RT thresholds of 115 ms and 119 ms were identified for men and women, respectively, indicating that the current 100 ms rule could result in some false starts not being detected in competitive athletics. The study proposes that when using existing International Association of Athletics Federations approved systems, the false start detection threshold should be increased and that men and women athletes should have different thresholds because of substantial evidence of a sex-based difference in RT in elite-standard athletes.  相似文献   

4.
Abstract

Selected high school athletes (junior and senior lettermen in baseball, basketball, football, swimming, and wrestling) were compared with nonathletes from the same population for differences in selected profile scales, as indicated by the Minnesota Multiphasic Personality Inventory (MMPI), and intelligent quotients (I).

Personality characteristics in terms of MMPI categories of hypochondriasis (Hs), depression (D), hysteria (hy), psychopathic deviation (Pd), femininity (Mf), paranoia (Pa), and psychasthenia (Pt) distinguished betweeen athletic and nonathletic groups. Femininity and intelligence were significantly lower for all athletic groups when compared with the nonathletic group. Hypochondriasis was significantly higher for all athletic groups, except swimmers, when compared with the nonathletic group. Only hypomania (Ma) and the validity scale (K) failed to differentiate between athletic and nonathletic groups.  相似文献   

5.
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   

6.
Abstract

Most research on the correlates of sport involvement has utilized male samples. The present study focuses on a sample of high school girl gymnasts, basketball players, track participants, and a control group of nonathletes. The correlates of participation investigated include familial factors, peers, teachers and coaches' encouragement to participate in sports, and the social psychological variables of perceived femininity, self-reported athletic ability, and body image. The findings indicate that socialization into sport begins in childhood and continues into high school with considerable encouragement from significant others. The basketball players reported somewhat less encouragement and tend to see themselves as less feminine than the other athletes. Athletes had higher self-perceptions of athletic ability than the nonathletes. The athletes' perceptions of their body image were generally more positive than the nonathletes. This latter finding suggests a reduction of stigma formerly associated with female involvement in sport.  相似文献   

7.
Abstract

Measuring body composition in athletes can provide valuable information on training and nutritional status. The aim of this study was to compare percentage body fat (PF) obtained by hydrostatic weighing (HW) to PF via air-displacement plethysmography (ADP), and to evaluate tracking of individual differences between both methods over time in elite college athletes. Thirty-one male and 33 female athletes (18.0–36.4 years) were measured by ADP and HW. Twenty-one subjects (10 men, 11 women) were measured again 61±11 days later to evaluate consistency of individual differences between methods. Mean PF differed significantly in men (HW: 9.4±2.4%, ADP: 11.3±3.4%, P<0.05) but not in women (HW: 19.1±2.4%, ADP: 19.5±3.7%). A significant trend in mean bias was found in both genders between HW-ADP suggesting an underestimation of PF by ADP at lower mean PF and an overestimation of PF by ADP at higher mean PF. Up to 73% of variance in differences between methods at follow-up was explained by differences between methods at the first measurement occasion. Both densitometric methods cannot be used interchangeably when measuring and tracking the body composition of individual elite athletes using a 2-component model of body composition. Differences between methods appear to track within an individual. The individual-specific causes of these differences remain to be determined.  相似文献   

8.
Soccer     
Female athletes are at least twice as likely to sustain an anterior cruciate ligament injury than male athletes. The underlying cause of ACL injury is multifactorial. However, several researchers have identified knee joint laxity as a possible contributing factor. The purpose of this study was to provide a comparison of knee joint laxity between male and female collegiate soccer players and male and female non‐athletes. Thirty‐nine (19 male, 20 female) apparently healthy, collegiate athletes from the University of Texas at El Paso's 2001‐2002 women's intercollegiate soccer team and men's club soccer team, and forty (20 male, 20 female) non‐athletic students volunteered to participate. All participants were tested bilaterally using the KT‐1000 MEDmetric knee joint ligament arthrometer. Three tests were used to determine anterior laxity: passive displacement, active displacement, and the Lachman test. The mean passive displacement, mean active displacement, and Lachman (only for the left leg) were significantly lower for the athletic group than for the non‐athletic group. There were no significant differences found between males and females for the passive and active drawer tests. However, females had significantly more laxity than males in the Lachman test. These findings suggest that strength and conditioning may play a more significant role in knee joint laxity than the sex of the individual.  相似文献   

9.
Abstract

Selected kinematic and kinetic variables in the running pattern of 2-, 4-, and 6-year-old children were investigated. Cinematographic records and force-plate tracings were used to study the running patterns of the 28 Caucasian subjects, 15 male and 13 female. A 2 × 3 (sex × age) factorial analysis of variance was used to determine whether effects of variation between and within age and sex factors for each of the dependent variables of selected kinematic (displacement and velocity) and kinetic (ground reaction force) variables were significant. The running speeds improved with age. Although height and weight gains influenced the improvement shown in performance, certain biomechanical variables also contributed to the development of the running pattern. In the majority of the selected kinematic and kinetic variables there were significant differences between the 2-year-old group and the other two groups. Where there were significant differences in the variables, the differences tended to be in displacement, velocity, and magnitude of force measures, rather than in time of occurrence measures. Significant differences between male and female subjects appeared in five kinematic variables related to the swing leg.  相似文献   

10.
The effect of subject gender and knowledge of results (KR) on receptor anticipation (Poulton, 1957) was investigated. Twenty trials were given in which subjects (N = 80) attempted to time a preferred-hand button press response coincident with the lighting of the last of a series of runway lights illuminating in a pattern of apparent motion of 9 mph. Half of the subjects received quantitative KR after each trial and half performed without KR. Each group contained 20 males and 20 females. Mean absolute error, mean algebraic error, and variable error were calculated for each subject on the block of trials 2 to 5 and on the three subsequent 5-trial blocks. The dependent measures were then analyzed by means of separate 2 × 2 × 4 (Gender × KR × Blocks) ANOVAs with repeated measures on the last factor. The results indicated that the receptor anticipation of males was more accurate and less variable than that of females, and KR did not influence the accuracy of anticipations but was associated with higher intravariability. Sociocultural and physiological explanations for sex differences in receptor anticipation are discussed.  相似文献   

11.
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12.
Although previous research has established that high school sports participation may be associated with positive academic outcomes, the parameters of the relationship remain unclear. Using a longitudinal sample of nearly 600 Western New York adolescents, this study examined gender- and race-specific differences in the impact of two dimensions of adolescent athletic involvement ("jock" identity and athlete status) on changes in school grades and school misconduct over a two-year interval. Female and black adolescents who identified themselves as "jocks" reported lower grades than those who did not, whereas female athletes reported higher grades than female nonathletes. Jocks also reported significantly more misconduct (including skipping school, cutting classes, having someone from home called to the school for disciplinary purposes, and being sent to the principal's office) than nonjocks. Gender moderated the relationship between athlete status and school misconduct; athletic participation had a less salutary effect on misconduct for girls than for boys.  相似文献   

13.
中国竞技体育"阴盛阳衰现象"探析   总被引：4，自引：0，他引：4  
近年来,中国女子竞技体育运动以发展快、项目多、实力强、潜力大的特点,优于男子的发展,出现了众所周知的体坛“阴盛阳衰“现象.通过对中国社会制度、国外竞技体育背景等几个方面研究,揭示产生这一现象的主要原因有历史发展、中国传统文化、政治需要、举国体制、项目等原因.  相似文献   

14.
ABSTRACT

Fractionated reaction time can be used to determine distinct epochs known as pre-motor, response and movement times (MTs) of a reaction time task. The purpose of this study was to compare elite and novice athletes performing a taekwondo kick in terms of the fractionated reaction time and electromyography (EMG) activation patterns of the muscles of the striking lower limb and the lower back. We hypothesised that the pre-motor time, response time (RT) and MT would be the shorter for elite athletes compared to novices. We collected data on 13 elite and 10 novice athletes when performing a roundhouse kick. The experiment included EMG electrodes placed on five low back and lower extremity muscles and an electrogoniometer placed on the kicking knee. We found that pre-motor time was shorter and the RT was longer for elite athletes than novice athletes. Moreover, the integrated EMG of the main knee extensor does not differ between groups though other leg and trunk muscles do. The results allow coaches and teachers to understand this particular taekwondo kicking movement which could ultimately improve the technique in order to establish training and teaching goals.  相似文献   

15.
景晨 《体育科研》2019,(2):68-71
探讨手足相关派生指数与运动等级的相关度,为游泳运动员选材形态指标的精选提供理论依据。方法：对334名上海区级游泳学校、上海高校、上海市队、浙江省队游泳运动员手足表型进行测量统计并计算相应派生指数,对不同等级运动员手足面积表型与运动等级进行相关性分析。结果：男子游泳运动员手足面积表型与运动等级均无直线相关关系（相关系数小于0.3）,女子足部派生指标与运动等级亦均无直线相关关系,仅手部面积Ⅰ表型与运动等级存在极显著性低度直线相关（P＜0.01）。结论：手面积Ⅰ表型可入选女子游泳运动员二类选材指标。女子游泳运动员足面积表型和男子游泳员手足面积表型均不具备选材评价指标依据。  相似文献   

16.
The impact on women athletes of receiving or not receiving scholarships was investigated in this study. The subjects were 61 women participating in 10 intercollegiate sports. Attitudes were assessed by administering a questionnaire prior to, and after, scholarships had been awarded. The questionnaire items were grouped into three subsets which reflected different attitudes about the “impact” of awarding athletic scholarships. A 4 × 2 × 2 repeated measures design was used to test for significant statistical interaction between the three independent variables: (a) wanting a scholarship, (b) receiving a scholarship, and (c) reacting to the awarding of scholarships.  相似文献   

17.
Abstract

Junior high school boys (N=181) took part in this study. There were 91 athletes and 90 nonathletes who took five psychological function tests2 and eight sport skill tests to determine (a) whether differences existed in selected psychological functions and selected sport skills between junior high school boy athletes and nonathletes, (b) the degree of relationship between psychological functions and sport skills, (c) the implementation of a six-multiple variation equation in predicting probable individual sport skill scores, and (d) the degree of relationship between a long and short form psychological functions test and a long and short form sport skills test.

The Stoelting visual reaction timer apparatus was used to test for simple reaction time. The Howard-Dolman apparatus was used to test for depth perception. The McClure perimeter was used to test for peripheral vision left eye, right eye, and total angle. The sport skill tests used were soccer combination skills and volley; basketball dribble shoot and volley; volleyball volley and serve; and baseball volley and repeat throws.

Significant differences existed on all psychological function tests and sport skill tests between athletes and nonathletes, in favor of athletes. The psychological function tests were independent of each other except for peripheral vision total angle with right eye and left eye. There was a low to moderate relationship between the psychological functions and the sport skills. The six-variable multiple R regression equation had a 70 percent predictive accuracy on individual scores for each sport skill test. The short form psychological functions test and the short form sport skills test could replace their respective long forms. The short form psychological functions test could moderately predict sport skill performance in the sport skill areas selected.  相似文献   

18.
This paper compares the prevalence of sexual harassment and abuse among 660 Norwegian elite female athletes and an age-matched control sample of nonathletes. It also explores differences in the prevalence of harassment and abuse in sport and work or school settings and compares harassment and abuse perpetrated by male authority figures and peers in these different contexts. No differences were found between the athletes and controls in overall prevalence of sexual harassment or abuse. However, the athletes experienced significantly more harassment from male authority figures than did the controls. Based on these results, the article considers whether or not sport offers women any particular immunity from sexual harassment and abuse. The implications of the findings for structural and cultural change in sport are discussed.  相似文献   

19.
目的：通过测试上海市处于不同生长发育阶段青少年游泳运动员的血清睾酮水平，比较各发育阶段血清睾酮水平的差异，探讨基层教练员利用青少年生长发育的不同阶段来预测睾酮水平的可行性。方法：对420名青少年游泳运动员进行左手正位X线片的拍摄和血清睾酮的检测，按骨龄片中种籽骨形态的差异进行不同发育阶段的分组，从各组中随机抽取30人作为研究对象，男、女运动员分别进行组间血清睾酮水平的比较。结果：不同发育阶段男、女青少年游泳运动员的血清睾酮水平均存在显著性差异（P＜0.01）；男运动员发育后阶段血清睾酮值是发育中和发育前的186%和1 187%，女运动员发育后阶段血清睾酮值是发育中和发育前的155%和329%；男运动员的睾酮水平与肌肉含量存在显著性正相关（r=0.875，P＜0.01），与体脂百分比存在显著性负相关（r=-0.312，P＜0.01）；女运动员的睾酮水平与肌肉含量、体脂百分比均存在显著性正相关（r=0.774和0.463，P＜0.01）。结论：男、女青少年游泳运动员整个生长发育阶段血清睾酮水平都处于显著增加的趋势，且每个生长发育阶段，血清睾酮水平都具有明显的阶段特征；男、女运动员的血清睾酮水平对身体成分会产生影响，且存在性别特征。  相似文献   

20.
BackgroundEvery high-level athlete will eventually see his or her sport career come to an end. Most former athletes will experience changes in their self-definition and everyday behaviors as they accept a nonathletic way of life. The present study aimed to identify discrepancies between actual and former athletes regarding athletic identity, physical activity (PA), and nutrition habits.MethodsActual athletes (AA; n = 122), former athletes (FA; n = 230), and nonathletes (NA; n = 74) were asked to complete an online questionnaire on athletic identity, duration and intensity levels of occupational and leisure time PA, and nutritional habits.ResultsFA healthy nutrition score was the lowest of the 3 groups and significantly different from that of AA. Athletic identity and intense and moderate PA during leisure time consistently decreased (p < 0.01) across the 3 groups (AA > FA > NA). No significant difference between FA and NA was found regarding either nutritional habits or type of PA.ConclusionSport retirement may affect FA quality of nutritional habits that tends to decline below the NA level, as well as the amount of time spent practicing physical activities during leisure time. Athletic status does not ensure PA practice during sport postcareer.  相似文献   

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