scholarly journals Does stature or wingspan length have a positive effect on competitor rankings or attainment of world title bouts in international and elite mixed martial arts?

Author(s):  
Christopher Kirk

Background: Whilst most anthropometrical research within sport has focussed on muscle and fat distribution, more studies are measuring the relationship between stature and wingspan, which has been found to be selective criteria in many sports. Methods: In this study the stature, wingspan and stature-to-wingspan ratio (S:W) was recorded for N = 474 elite and international mixed martial arts (MMA) competitors who appeared in televised bouts over the course of one calendar year. Each weight division was split into three or four ranking groups (RG) depending on division size, as well as into groups depending on if the competitors had won a world title (Ch), competed for a world title (El) or had done neither (In). Results: One-way ANOVA (≤0.05) found that shorter competitors are ranked higher in flyweight and in the middle in women’s straw weight. Independent t-tests (≤0.05) found that shorter competitors also have more chance of winning or competing for a world title in featherweight and flyweight. Independent t-tests (≤0.05) also found a significant difference between males and female for S:W. There was a weak, negative correlation and a moderate, negative correlation between stature and rank in lightweight and light heavyweight respectively and a moderate, negative correlation between S:W and rank in featherweight. There were no other significant differences found. Discussion: Overall, whilst MMA competitors have a S:W of 1:1.024, due to the paucity of significant differences found, it was determined that anthropometrical measurements cannot be used to predict success in elite and international mixed martial arts.

2016 ◽  
Vol 25 (5-6) ◽  
pp. 334-349 ◽  
Author(s):  
Christopher Kirk

AbstractIn this study the stature, wingspan and stature-to-wingspan ratio (S:W) was recorded for N = 474 elite and international mixed martial arts (MMA) competitors who appeared in televised bouts over the course of one calendar year. Each weight division was split into three or four ranking groups (RG) depending on division size, as well as into groups depending on if the competitors had won or competed for a world title (El) or had done neither (In). One-way ANOVA (≤0.05) found that shorter competitors are ranked higher in flyweight and in the middle in women’s strawweight. Independent t-tests (≤0.05) found that shorter competitors also have more chance of winning or competing for a world title in featherweight and flyweight. Independent t-tests (≤0.05) also found a significant difference between males and female for S:W. There was a weak, negative correlation and a moderate, negative correlation between stature and rank in lightweight and light heavyweight respectively and a moderate, negative correlation between S:W and rank in featherweight. There were no other significant differences found. Overall, whilst MMA competitors have a S:W of 1:1.024, due to the paucity of significant differences found, it was determined that anthropometrical measurements cannot be used to predict success in elite and international mixed martial arts.


2016 ◽  
Author(s):  
Christopher Kirk

Whilst most anthropometrical research within sport has focussed on muscle and fat distribution, more studies are measuring the relationship between stature and wingspan, which has been found to be selective criteria in many sports. In this study the stature, wingspan and stature-to-wingspan ratio (S:W) was recorded for N = 474 elite and international mixed martial arts (MMA) competitors who appeared in televised bouts over the course of one calendar year. Each weight division was split into three or four ranking groups (RG) depending on division size. One-way ANOVA (≤0.05) found that shorter competitors are ranked higher in flyweight and in the middle in women’s straw weight. Independent t-tests (≤0.05) found that shorter competitors also have more chance of winning or competing for a world title in featherweight and flyweight. Overall, whilst MMA competitors have a S:W of 1:1.024, due to thepaucity of significant differences found, it was determined that anthropometrical measurements cannot be used to predict success in elite and international mixed martial arts.


2016 ◽  
Author(s):  
Christopher Kirk

Whilst most anthropometrical research within sport has focussed on muscle and fat distribution, more studies are measuring the relationship between stature and wingspan, which has been found to be selective criteria in many sports. In this study the stature, wingspan and stature-to-wingspan ratio (S:W) was recorded for N = 474 elite and international mixed martial arts (MMA) competitors who appeared in televised bouts over the course of one calendar year. Each weight division was split into three or four ranking groups (RG) depending on division size. One-way ANOVA (≤0.05) found that shorter competitors are ranked higher in flyweight and in the middle in women’s straw weight. Independent t-tests (≤0.05) found that shorter competitors also have more chance of winning or competing for a world title in featherweight and flyweight. Overall, whilst MMA competitors have a S:W of 1:1.024, due to thepaucity of significant differences found, it was determined that anthropometrical measurements cannot be used to predict success in elite and international mixed martial arts.


Author(s):  
Z. Sh. Pavlova ◽  
V. Yu. Grevina

Introduction. Today, there are not enough studies demonstrating the relationship between body composition disorders in men with excess adipose tissue and metabolic syndrome (MS), depending on the content of testosterone, estradiol, sex hormone binding globulin (SHBG), anthropometric parameters, or blood pressure (BP).Aim: to study the relationship between disturbances in anthropometric parameters, the level of sex hormones and BP in men with MS.Materials and Methods. The study included 64 overweight men. The patients were divided into 3 groups depending on the body mass index (BMI): group 1 with overweight (n = 24), group 2 with the first degree of obesity (n = 21), group 3 with the second and third degrees of obesity (n = 19). A correlation analysis was carried out between the results of bioimpedance analysis (BIA) and laboratory data, and the level of difference between the groups under consideration was determined.Results. The relationship was revealed between the parameters of body composition in men with overdeveloped adipose tissue and MS, depending on the level of testosterone, estradiol, SHBG, anthropometric parameters and blood pressure indicators. A moderate negative correlation was observed across the sample between the testosterone level and a number of anthropometric indicators: waist circumference (WC), OT/hip circumference (HC) and BMI (p < 0.05). A weak negative correlation was found between the level of testosterone, fat mass (FM) and the proportion of FM in the general sample. A weak negative correlation between SBP and testosterone across the sample found, while in group 3 – a moderate negative correlation. A positive weak correlation was found between testosterone and estradiol in the general sample and in group 2. In group 1, this correlation is moderately positive and in t group 3 – a negative weak correlation. A positive correlation can be traced between testosterone and SHBG: moderate in the entire sample, in groups 1 and 2, and noticeable in group 3.Conclusion. The relationship was revealed between the parameters of body composition in men with excess adipose tissue and MS, depending on the content of testosterone, estradiol, SHBG, anthropometric parameters and ВР. This confirms the consistency and multicomponent nature of the obesity problem.


2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Linhong Wang ◽  
Yan Ruan ◽  
Jianping Chen ◽  
Yunxiao Luo ◽  
Fan Yang

AbstractThis study aimed to noninvasively assess the relationship between the labial gingival thickness (GT) and the underlying bone thickness (BT) of maxillary anterior teeth by two digital techniques. A total of 30 periodontally healthy participants with 172 maxillary anterior teeth were enrolled. GT and BT were measured at 2, 4 and 6 mm apical to the cemento-enamel junction (CEJ) by two digital techniques: M1—cone-beam computed tomography (CBCT) and M2—digital intraoral scanning (DIS) combined with CBCT. The Pearson's correlation coefficient was calculated to determine the correlation between GT and BT. A significant negative correlation was identified between GT and BT at 2 mm apical to the CEJ for central incisors (CI), lateral incisors (LI), and canines (CA) both by M1 and M2, while a weak negative correlation at 4 mm apical to the CEJ was observed by M1 for CA. No significant correlation was found at other sites by both M1 and M2. The labial BT was < 1 mm in most cases (85% of CI; 97% of LI; and 90% of CA). Within the limitation of this study, it was concluded that GT and BT seemed to be negatively correlated at 2 mm apical to the CEJ. Therefore, caution is warranted when implant restoration at the esthetic area of the anterior teeth.


2019 ◽  
pp. 135910531987744
Author(s):  
Kevin S Spink ◽  
Colin W Federow ◽  
Joel L Lanovaz ◽  
Alison R Oates

This study examined the effect of descriptive norm messaging information on the relationship between haptic input and balance control. Participants were randomly assigned to either a message group where they balanced with haptic input after receiving a descriptive norm message about the positive effect of haptic input or a control group. Findings from an analysis of covariance revealed a significant difference between the two groups. Those in the descriptive norm message group had better balance control than those in the control group. These findings suggest that efforts designed to improve balance control through haptic input may be enhanced through normative messaging.


2020 ◽  
Vol 35 (5) ◽  
pp. 640-640
Author(s):  
K Unjia ◽  
R Bennett ◽  
L Lashley

Abstract Objective This study aimed to examine the relationship between developmental stages and concussions that resulted in amnesia as measured by ImPACT. Method Participants were selected from an archival de-identified sports medicine ImPACT database. The sample (N = 4,200) was primarily male (62.2%) student athletes with ages ranging from 10 to 25 years. Participants were divided into three groups: Young athletes (n = 1,400), Adolescent (n = 1,400), and Adult (n = 1,400). A One-Way ANOVA was conducted to determine the relationship between age group and prevalence of concussions resulting in anterograde or retrograde amnesia. Results The One-Way ANOVA revealed significant differences between age group and anterograde F(2,4197) = 107.449, p &lt; .001 and retrograde amnesia F(2,4197) = 82.949, p &lt; .001. Bonferroni pairwise comparison revealed the adolescent athlete group experienced more concussions that result in both anterograde and retrograde amnesia compared to young and adult athletes. There was no significant difference between young and adult athletes. Additionally, there is a significant difference regarding total games missed following concussion F(2,4197) = 117.723, p &lt; .001, with adolescent athletes missing more games compared to young and adult athletes. Conclusions The findings of this study suggest adolescent athletes tend to experience more amnesia-related concussions compared to young and adult athletes. Additionally, adolescent athletes miss more games following these types of concussions. This study highlights the impact that certain types of concussions have on athletes across the developmental stages. Future research should analyze the cognitive effects of various types of concussions across the developmental stages.


2019 ◽  
Vol 2 (1) ◽  
pp. p43
Author(s):  
Bezabih, Mezgebu Bayu

The purpose of this study was to examine the relationship between parental involvement and academic achievement of children in some selected full cycle government primary schools of Bahirdar city. To achieve this objective, 180 sample students were selected by using simple random sampling technique. The collected data was analyzed through, spearman correlation, analysis of variance and independent-test. The finding of the study revealed that the statistical analysis on independent t-test showed that there was a statistically significant difference between male and female students with regard to their academic achievement (t=6.25, df = 178, p<0.05). The finding of spearman correlation indicates that there was significant relationship between parental involvement and academic achievement of students (r=.56, p <.05). The result on one way ANOVA displayed that there was statistical significant difference among respondents academic achievement with regard to their parental level of education (F 2, 176) = 17.084, P<0.05. In conclusion, parental involvement is positively correlated with academic achievement of students and males have better academic performance than their female counter parts.


2021 ◽  
pp. 151-155
Author(s):  
Srinidhi C.V ◽  
Inthumathi S.R ◽  
A.G. Shanthi ◽  
Smitha Ruckmani

Background:Old age is commonly viewed as a period of decreased physical activity,agitation and,increased calmness; depression or stress is not commonly acknowledged in the population. According to Erik Erikson, older adults experience Ego Integrity vs Despair, where people review their life cycle and accept it as something that had to be, resulting in wholeness or a sense of coherence. A lack of it would result in despair, where one's life is seen as being unproductive and guilt about the past, having not accomplished life goal leads to dissatisfaction and depression. Therefore,people with a poor sense of coherence could have higher levels of perceived stress and depression in them when compared to those who have a strong sense of coherence. Purpose: The study thus focuses on exploring the relationship between depression, perceived stress, and sense of coherence among the elderly population. Methods: Data was collected through the Sense of Coherence Scale,Perceived stress scale,and geriatric depression scale-15 from a sample of 40 from old age (people over 60 years). Out of which 20 were living in old age homes and 20 with their families.Statistical analyses were conducted using Pearson's Coefficient of Correlation and T-test.Results: There was a mild to moderate negative correlation between perceived stress and sense of coherence and a mild to moderate negative correlation between depression and sense of coherence. There was a significant difference in the levels of perceived stress and depression between people living in their homes and old age homes.


2018 ◽  
Vol 15 (3) ◽  
pp. 1453
Author(s):  
Elif Buldu ◽  
Refika Olgan

The main aim of this study was to investigate the relationship between some quality indicators from 2015 PISA Socio-Economic and Cultural Index (ESCS) and 15 year-old students’ science literacy skills. Accordingly, 5895 students’ science literacy skills scores were analyzed through One-way ANOVA test in terms of student variables (gender, starting pre-primary age), and parents’ socio-economic variables (mother educational attainment, father education attainment). The findings of the study revealed that children who started pre-primary education at 2-3 and 4 year olds have higher science literacy score when compared to the children who started pre-primary education at 5-6 and less than 1 year olds in analysis and the increase of mother and father education level showed statistically significant difference on the science literacy scores in PISA 2015. The results of the study, on each variable basis, provide important implications in terms of improving Turkey’s education vision. Extended English summary is in the end of Full Text PDF (TURKISH) file.ÖzetBu çalışmanın amacı PISA Ekonomik, Sosyal ve Kültürel İndeks’ inden (ESCS) elde edilen değişkenler ile Türkiye PISA 2015 uygulamasına katılan 15 yaşındaki öğrencilerin fen okur-yazarlık beceri puanları arasındaki farklılaşmanın incelenmesidir. Bu doğrultuda 5895 öğrencinin fen okur-yazarlık beceri puanları bireysel değişkenler (cinsiyet, okul öncesi eğitime başlama yaşı) ve ailelerine ait değişkenler (anne eğitim düzeyi, baba eğitim düzeyi) tek yönlü ANOVA testi ile analiz edilmiştir. Bulgular 2-3 ve 4 yaşlarında okul öncesi eğitime başlayan çocukların PISA fen okur-yazarlık becerilerine ait puanlarının 5-6 yaşlarında ve 1 yaşından önce okul öncesi eğitime başlayan çocuklara kıyasla daha iyi olduğunu ve anne-baba eğitim düzeyindeki artışın PISA fen okur-yazarlık beceri puanları üzerinde istatistiksel olarak anlamlı bir fark yarattığını göstermektedir. Çalışma sonuçları, her bir gösterge bazında, Türkiye’de okul öncesi eğitim sisteminin vizyonunun geliştirilmesine yardımcı olabilecek öneriler sunmaktadır.  


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