Analysis of the NWAA Swimming Classification System

1992 ◽  
Vol 9 (2) ◽  
pp. 141-147 ◽  
Author(s):  
Gale M. Gehlsen ◽  
Joan Karpuk

This study was conducted to determine the effectiveness of the National Wheelchair Athletic Association (NWAA) classification system in swimming events. The NWAA records of freestyle, butterfly, and backstroke in nine classifications of both male and female athletes were used (N=1,256). Each athlete’s speed was calculated from the reported time and distance. There was a significant difference in classification for all events except the paraplegic 50- and 100-m backstroke events. Post hoc data analyses within classification for the 50- and 100-m freestyle events indicated significant differences among all paraplegic classifications. Post hoc data analyses within classifications for the 50-m butterfly event indicated significant differences among all paraplegic classes except Class V and Class VI athletes. Tetraplegic within classification post hoc data analyses indicated significant differences between 1A and both Classes 1B and 1C. Gender differences were statistically indicated for all events. The logic of the medical classification system of the NWAA cannot be totally supported by these data. However, the results do not offer clear direction for any combination of classes.

Author(s):  
Ranjini Karthikeyan ◽  
Amiya Bhaumik

Body self-relation is a multidimensional construct defined by persons" perceptions of and attitudes about their body. Body image does not simply reflect the biological enrichment of the individual or the feedback received from the significant others. The way you perceive about your body is your cognitive body image. This can lead to excessive concern with body shape and weight. Behaviors in which you relate as a result of your body image encompass your behavioral body image. A study based on the gender differences in body relation relating to young adults rating the comparison in perception of both male and female data. Hundred participants of both male and female took part in answering the by Multidimensional body selfrelations questionnaire (MBSRQ-AS). Results demonstrated by Mann Whitney U test revealed that there is significant difference between male and female young adults in their relation to body self, p<0.05, (2- tailed) in appearance orientation. There is no statistical sig.>0.05 differences in the other dimensions. Therefore, this study rejects the null hypothesis in (dimension) appearance orientation and accepts the null hypothesis (dimensions) in appearance evaluation, body area satisfaction, overweight preoccupation and self-classified weight. Keywords: body self-relation; gender differences


2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Annika Lundkvist Josenby ◽  
Tomasz Czuba ◽  
Ann I. Alriksson-Schmidt

Abstract Background In the Swedish population-based follow-up program and national quality registry for individuals with cerebral palsy (CPUP), physiotherapy (PT) and occupational therapy (OT) treatments are regularly recorded along with functional status. By Swedish law, all citizens irrespective of personal characteristics or socioeconomic status, have the right to receive healthcare and medical treatments as applicable. Previous research has shown gender differences in treatments and interventions received by children with cerebral palsy (CP). The purpose of this study was to examine differences in treatments and interventions by gender and place of birth in children and adolescents participating in CPUP. Methods This was a cross-sectional registry study. Data from the latest PT (n = 2635) and OT assessment forms (n = 3480) in CPUP were extracted for individuals aged 0–17 years. Logistic regressions were used to assess the relationships between the outcome variables and gender and place of birth (including an interaction term gender X place of birth), adjusted for age, Gross Motor Function Classification System (GMFCS) levels and spasticity scores for PT interventions and Manual Ability Classification System (MACS) for OT interventions. Results Results are presented as odds ratios [95% confidence intervals] and p-values. Girls were significantly more likely to have spinal braces than boys; 1.54 [1.07, 2.22] p < 0.05, a significant interaction with place of birth indicated fewer spinal braces prescribed to children born outside of the Nordic countries; 0.20 [0.079, 0.53] p < 0.001. Girls were less likely to have undergone selective dorsal rhizotomy (SDR); 0.49 [0.25, 0.94] p < 0.05. Individuals born outside of the Nordic countries, were significantly less likely to have received intrathecal baclofen (ITB) 0.27 [0.074, 0.98] p < 0.05. Conclusions Of the treatments prescribed, gender differences were observed for spinal braces and having undergone SDR. A statistically significant difference based on place of birth was noted for spinal bracing and having received ITB treatment. Other PT and OT treatments were associated with age, level of spasticity, and functional severity as classified using the GMFCS and the MACS. Increased awareness of differences based on gender, and where a child is born, could be obtained by inter- and intraprofessional discussions.


2008 ◽  
Vol 22 (6) ◽  
pp. 672-675 ◽  
Author(s):  
Mark G. Bowden ◽  
Chitralakshmi K. Balasubramanian ◽  
Andrea L. Behrman ◽  
Steven A. Kautz

Background. For clinical trials in stroke rehabilitation, self-selected walking speed has been used to stratify persons to predict functional walking status and to define clinical meaningfulness of changes. However, this stratification was validated primarily using self-report questionnaires. Objective. This study aims to validate the speed-based classification system with quantitative measures of walking performance. Methods. A total of 59 individuals who had hemiparesis for more than 6 months after stroke participated in this study. Spatiotemporal and kinetic measures included the percentage of total propulsion generated by the paretic leg (Pp), the percentage of the stride length accounted for by the paretic leg step length (PSR), and the percentage of the gait cycle spent in paretic preswing (PPS). Additional measures included the synergy portion of the Fugl-Meyer Assessment and the average number of steps/day in the home and community measured with a step activity monitor. Participants were stratified by self-selected gait speed into 3 groups: household (<0.4 m/s), limited community (0.4-0.8 m/s), and community (>0.8 m/s) ambulators. Group differences were analyzed using a Kruskal—Wallis H test with rank sums test post hoc analyses. Results. Analyses demonstrated a main effect in all measures, but only steps/day and PPS demonstrated a significant difference between all 3 groups. Conclusions. Classifying individuals poststroke by self-selected walking speed is associated with home and community-based walking behavior as quantified by daily step counts. In addition, PPS distinguishes all 3 groups. Pp differentiates the moderate from the fast groups and may represent a contribution to mechanisms of increasing walking speed. Speed classification presents a useful yet simple mechanism to stratify subjects poststroke and may be mechanically linked to changes in PPS.


2018 ◽  
Vol 15 (4) ◽  
pp. 1924
Author(s):  
Özlem Keskin ◽  
Ayşe Demir ◽  
Buket Şenol

The purpose of this research was to review the assertiveness levels of elite level athletes who study in İstanbul Aydın University and play different sports. For this purpose, the survey model was used in the study. A total of 121 students including 36 female (age average x=20,11±1,83) and 85 male (age average x=20,34±2,47) volunteered for this study. Rathus Assertiveness Schedule (RAE) that was developed by A.S Rathus (1973) was used as data collection tool to determine the assertiveness levels of participants (Voltan 1980). Adaption works for Turkish of this schedule was performed by Nilüfer Voltan Acar (1980). Independent T-test and One Way ANOVA Test in SPSS 24.0 packaged software were used in statistical analyses of the data obtained. It was found at the end of the research that the assertiveness level of 19 students is at timidity level, the assertiveness level of 102 students is at an aggressive level. While there were no statistically significant differences in variables of gender, branch, income level and educational background of the parent; there was found statistically significant difference by evaluation based on age ranges.


2020 ◽  
Vol 12 (1) ◽  
pp. 34-40
Author(s):  
Roberto Roklicer ◽  
Dragan Atanasov ◽  
Filip Sadri ◽  
Dzenan Jahic ◽  
Danilo Bojanic ◽  
...  

SummaryStudy aim: The body structure can play a determining role in the achievement of top judo performance, and it seems to influence the type of techniques applied. The aim of this study is to determine the somatotypes in male and female national level judokas across weight categories in order to observe possible differences among athletes.Material and methods: A total of 61 male judokas (23.2 ± 2.7 years old) and 37 female judokas (22.3 ± 3.3 years old) participated in this study. Anthropometric variables were used to calculate somatotypes. Somatotypes were determined according to the Heath-Carter method. Analysis of variance and Tukey’s post hoc test were used to determine differences between weight categories and obtained effect sizes (η2) were presented as well.Results: Somatotype differences among weight categories in male and female judokas were observed. Generally, all categories could be classified in three somatotypes in male and female athletes.Conclusions: The lightest categories were recognized as mesomorphic ectomorphs in females with an exception in the –48 kg category, and ectomorphic mesomorphs in male athletes. The middle ones had the endomorphic mesomorph somatotype and the heaviest athletes presented somewhat more extreme cases of endomorphic mesomorphs, both in male and female judokas. According to the results obtained, judokas have a specific body composition in different weight categories. Therefore, coaches could create a specific training programme for athletes who belong to different somatotypes.


2021 ◽  
Vol 6 (1) ◽  
pp. 97-101
Author(s):  
Angga Muhammad Syahid

The purpose of this study was to analyze the results of VO2max measurement using laboratory test and field test. This research is a descriptive quantitative research with a comparative approach. The samples of this study were 30 male and female athletes of the Indonesian rowing team (male = 17, female = 13) aged 23.5 ± 3.5 years. The anthropometric profile of the athletes included height = 182.2 ± 5.01 cm for male and 171.9 ± 5.73 cm for female, weight = 74.2 ± 5.85 kg for male and 68.6 ± 8.5 kg for female. According to the results of analysis of VO2max rowing test data gained from both methods, there were low and moderate correlations in the laboratory test and field test in rowing (male r = 0.425 and female r = 0.62). The results show that VO2max measured in the laboratory test and field test did not show a significant difference. Therefore, these two parameter tests can be used in Vo2Max testing.


2021 ◽  
Author(s):  
Maihaba Muhetaer ◽  
Mei Yang ◽  
Rongxiang Xia ◽  
Jun Wu

Abstract Background: There are gender differences in the biotransformation of arsenic. We investigated the effects of gender differences on arsenic metabolism and arsenic toxicity mechanisms in rat liver tissues. Methods: Rats were treated with different amounts of arsenic compounds. Arsenic form MMA and DMA in the liver was determined by high performance liquid chromatography-hydride generation atomic fluorescence spectroscopy. SAM, ARR, NAD, PNP, PK, and MPO in rat liver were determined by enzyme-linked immunoassay. RT-qPCR was used to determine AS3MT in the liver. Results: Compared with male and female animals in the same group, MMA and DMA were statistically significant in the three groups of iAs3 + high, iAs3 + medium and iAs5+ low (P <0.05). The MMA of male rats in iAs3+ high and medium groups was higher than that of female rats, and the DMA of male rats was lower than that of female rats. As3MT mRNA in the male iAs3+ high group was higher than that of females. Besides, compared between male and female, only in iAS3+ low dose, iAS3+ medium dose, iAS5+ low dose, and iAS5+ medium dose groups, there was significant difference in SAM level (P<0.05). Compared with male and female animals in the same group, male rats had significantly higher PNP and ARR activities while lower PK activity than female rats (P<0.05). Between the male and female groups, only the iAS3+ high dose and medium dose group had a statistically significant difference (P<0.05). The NAD activity of females in iAS3+ high dose group was higher than that of males. Conclusion: Conclusively, under the same arsenic exposure, there were gender differences between female and male rats, and arsenic metabolism was more cytotoxic to male rats than to females.


2009 ◽  
Vol 37 (9) ◽  
pp. 1699-1704 ◽  
Author(s):  
Alexis Chiang Colvin ◽  
Jimmy Mullen ◽  
Mark R. Lovell ◽  
Robin Vereeke West ◽  
Micky W. Collins ◽  
...  

Background This study was designed to investigate differences in recovery in male and female soccer athletes. Hypotheses Soccer players with a history of concussion will perform worse on neurocognitive testing than players without a history of concussion. Furthermore, female athletes will demonstrate poorer performance on neurocognitive testing than male athletes. Study Design Cohort study (prognosis): Level of evidence, 2. Methods Computer-based neuropsychological testing using reaction time, memory, and visual motor-speed composite scores of the ImPACT test battery was performed postconcussion in soccer players ranging in age from 8 to 24 years (N = 234; 141 females, 93 males). A multivariate analysis of variance was conducted to examine group differences in neurocognitive performance between male and female athletes with and without a history of concussion. Results Soccer players with a history of at least 1 previous concussion performed significantly worse on ImPACT than those who had not sustained a prior concussion (F = 2.92, P = .03). In addition, female soccer players performed worse on neurocognitive testing (F = 2.72, P = .05) and also reported more symptoms (F = 20.1, P = .00001) than male soccer players. There was no significant difference in body mass index between male and female players (F = .04, P = .85). Conclusion A history of concussion and gender may account for significant differences in postconcussive neurocognitive test scores in soccer players and may play a role in determining recovery. These differences do not appear to reflect differences in mass between genders and may be related to other gender-specific factors that deserve further study.


2021 ◽  
pp. 026461962110099
Author(s):  
Ferhat Esatbeyoglu ◽  
Ayse Kin-İsler

The aim of this study was to examine the gender differences in postural balance, physical activity (PA), and body mass index (BMI) and body composition in visually impaired (VI) athletes. A total of 66 athletes took part in this study. After anthropometric measurements, the PA level was assessed by the International Physical Activity Questionnaire-Short Form. The modified Clinical Test of Sensory Integration and Balance tool was used to assess postural balance in four standing conditions: (1) eyes-open on a firm surface, (2) eyes-closed on a firm surface, (3) eyes-open on a compliant surface, and (4) eyes closed on a compliant surface. Findings revealed gender differences in anthropometric measurements ( p < .05). No statistically significant differences were found in fat mass and fat free mass between sighted male and VI male athletes and between sighted female and VI female athletes ( p > .05). Weekly, high and moderate PA levels as well as walking were found to be different across the four groups ( p < .05). Assessment of postural balance in four standing conditions revealed no gender differences in sighted athletes ( p > .05). Postural balance scores in conditions 1 and 3 showed significant gender differences ( p < .05), whereas conditions 2 and 4 showed no gender differences in athletes with VI ( p > .05). Gender-matched differences were also apparent in conditions 1 and 3, revealing that VI male and female athletes scored worse in these conditions than their sighted male and female counterparts ( p < .05). There is a delay in balance parameter in VI athletes even if their fitness levels are similar with their sighted counterparts. The present findings could also be useful for gender-specific training session preparations in VI sports.


Author(s):  
Jelena Slankamenac ◽  
Dusko Bjelica ◽  
Damjan Jaksic ◽  
Tatjana Trivic ◽  
Miodrag Drapsin ◽  
...  

Competitive karate activity involves numerous factors affecting performance in sport. Physical structure and somatotype is considered to be one of them. This study aimed to determine whether there are differences between karate athletes in five male and five female official weight categories in different anthropometric measurements and to determine the somatotype profiles of athletes divided by weight categories. This study consisted of a total of 27 male karate athletes (21.88 ± 4.66 years) and 24 female karate athletes (20.29 ± 3.14 years). Measurements were taken in April 2020. Athletes are classified into official weight categories according to World Karate Federation rules. Somatotypes were calculated using anthropometry. One-way analysis of variance and Tukey’s post hoc tests were used for statistical analysis to compare group differences regarding weight categories. Anthropometric parameters were highest in the heaviest categories compared to lighter categories. All male subjects were endomorphic mesomorph, except for category <84 kg, which was endomorphic ectomorphs. Somatotype analysis of male categories found a difference between the <75 kg and <84 kg in endomorphy. In mesomorphy, there is no difference between categories. Perceiving ectomorphy, there is a significant difference between the first category and the >84 kg. Profiling female athletes, three different types of somatotypes were obtained concerning the weight category. The lightest weight category was predominantly endomorphic ectomorphs, and two weight categories were ectomorphic endomorphs (<61 kg and <68 kg), and the other two weight categories were endomorphic mesomorphs (<55 kg and >68 kg). Somatotype differences in the female karate athletes were observed only in the ectomorphy components, between <50 kg and <61 kg. The present study points to how the somatotypes profiles of karate athletes differ between weight categories.


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