Average Torsion Axis Location of Athletic Movements: Subject Specific or Movement Specific?

2013 ◽  
Vol 29 (3) ◽  
pp. 365-368 ◽  
Author(s):  
Eveline S. Graf ◽  
Darren J. Stefanyshyn
Keyword(s):  
Rotation Axis ◽  
Helical Axis ◽  
Torsion Angles ◽  
Torsion Element ◽  
Human Foot ◽  
Subject Specificity ◽  
Significant Difference ◽  
The Subject ◽  
Torsion Axis ◽  
Finite Helical Axis

Foot torsion angles have previously been studied for different athletic movements. Sport shoes often contain a torsion element even though the location of the rotation axis of the foot is unknown. Therefore, the purpose of this study was to quantify the torsion axis location and determine if the location is influenced by the movement or the subject. The torsion axis location was calculated using a modified finite helical axis approach, which allowed the calculation of the rotation axis between the forefoot and the rearfoot without the influence of forefoot flexion. The torsion axis location during the lateral jab was 9.72 mm below and 26.96 mm lateral to a marker located at the posterior, central heel, whereas the shuffle cut resulted in an axis location of 9.59 mm below and 26.19 mm lateral to the reference marker. There was no significant difference for the average axis location between movements. There was, however, a significant difference for the location between subjects, indicating a subject specificity of the torsion axis. The results of the current study are the first to quantify the torsion axis location of the human foot during athletic movements.

scholarly journals Effect of Relative Marker Movement on the Calculation of the Foot Torsion Axis Using a Combined Cardan Angle and Helical Axis Approach

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Eveline S. Graf ◽  
Ian C. Wright ◽  
Darren J. Stefanyshyn
Keyword(s):  
Helical Axis ◽  
Minimal Amount ◽  
Accurate Calculation ◽  
Reference Location ◽  
Probability Score ◽  
Human Foot ◽  
Torsion Axis ◽  
Metatarsophalangeal Joints ◽  
Finite Helical Axis

The two main movements occurring between the forefoot and rearfoot segment of a human foot are flexion at the metatarsophalangeal joints and torsion in the midfoot. The location of the torsion axis within the foot is currently unknown. The purpose of this study was to develop a method based on Cardan angles and the finite helical axis approach to calculate the torsion axis without the effect of flexion. As the finite helical axis method is susceptible to error due to noise with small helical rotations, a minimal amount of rotation was defined in order to accurately determine the torsion axis location. Using simulation, the location of the axis based on data containing noise was compared to the axis location of data without noise with a one-samplet-test and Fisher's combined probability score. When using only data with helical rotation of seven degrees or more, the location of the torsion axis based on the data with noise was within 0.2 mm of the reference location. Therefore, the proposed method allowed an accurate calculation of the foot torsion axis location.

SENSITIVITAS ETIS MAHASISWA ATAS PENGGELAPAN PAJAK

2017 ◽  
Vol 8 (2) ◽  
pp. 178-195
Author(s):  
Nurma Risa
Keyword(s):  
Tax Evasion ◽  
Female Students ◽  
T Test ◽  
Study Program ◽  
Male And Female ◽  
Political Sciences ◽  
Significant Difference ◽  
The Subject ◽  
And Gender ◽  
Management Students

This study aims to prove that there is a difference of perception about ethics on tax evasion in UNISMA Bekasi students, based on selected study program and gender. The sample of this research is the students who have fulfilled the subject of taxation, at the Faculty of Economics (FE) and Faculty of Social and Political Sciences (FISIP). Using independent t-test, the results showed that there was no significant difference of perception about tax evasion ethics between FE and FISIP students. But significant differences the perception of tax evasion ethics occur between accounting and management students at FE. Significant differences also did not occur between male and female students

Analisis Perbedaan Prestasi Belajar Mahasiswa Fakultas Tarbiyah Dan Ilmu Keguruan (Ftik) Iain Palu Pada Mata Kuliah Evaluasi Pembelajaran Berdasarkan Gender

2019 ◽  
Vol 9 (1) ◽  
pp. 152-190
Author(s):  
Wiwin Mistiani
Keyword(s):  
Student Achievement ◽  
Sampling Technique ◽  
Female Students ◽  
Male Students ◽  
Error Level ◽  
Learning Achievement ◽  
Learning Evaluation ◽  
Significant Difference ◽  
The Subject ◽  
Evaluation Of Learning

This study aims to determine the student achievement of male and female students on the subyek Evaluation of learning and to determine of Differences in student achievement FTIK IAIN Palu on the subject evaluastion learning by gender. The approach used is descriptive quantitative. While the population in this study are all students. The sampling technique is done by using proportional random sampling technique. With the number of students 60 people then the sample = 37 students of FTIK IAIN Palu. Technique of collecting data by using test and observation while data analysis using T test.From the research, 1) the average of learning achievement in the subject of male students' learning appraisal from 19 male students who are the sample in this research is 79,42 means good category. Meanwhile, from 18 female students who became the sample of the study, the average of learning achievement in the subject of female students' learning evaluation is 77 means either. 2) There is no significant difference Student Learning Achievement FTIK) IAIN Palu On the subject Evaluation Learning Based on Gender with t value equal to = 0,0267 with t table with dk 35 with error level 5% is 0,062.

Effect of Nada Yoga on Hypertension & Anxiety Level

GIS Business ◽  
2019 ◽  
Vol 14 (6) ◽  
pp. 1-16
Author(s):  
Naveen Kumar ◽  
Kuldeep singh
Keyword(s):  
Sound Speed ◽  
Anxiety Level ◽  
Hatha Yoga ◽  
Significant Difference ◽  
The Subject ◽  
Level Of Significance

In Nada yoga the sound speed of an object vibrates (as well as its size, however infinitesimal) contributes to its particular sound. Different tone and frequencies contains the subject of meditation in Nada Yoga, which also takes into consideration the musical intervals used in music and in the musical recitation of mantras, is brought together with meditation techniques and certain Hatha Yoga practices that are conducive to sonic exploration. Recently a study conducted on anxiety and hypertension level in Raigarh entitled as “The effect of Nada Yoga on Hypertension and anxiety level”.  The outcome of the study shows that Nada Yoga significantly reduces Anxiety as well as Hypertension. Results founds were surprisingly shows a significant difference between the two means, at .01 level of significance. It shows how Nada Yoga can effectively help to reduce anxiety and hypertension as well as many improves in health also.

Use of the alpha shape to quantify finite helical axis dispersion during simulated spine movements

2016 ◽  
Vol 49 (1) ◽  
pp. 112-118 ◽  
Author(s):  
Stewart D. McLachlin ◽  
Christopher S. Bailey ◽  
Cynthia E. Dunning
Keyword(s):  
Helical Axis ◽  
Alpha Shape ◽  
Finite Helical Axis

Investigation of The Nutritional Approaches of Student Athletes During The Covid-19 Epidemic

2021 ◽  
Vol 15 (7) ◽  
pp. 1940-1944
Author(s):  
Sevcan Altun ◽  
Aykut Aksu ◽  
Osman Imamoglu ◽  
Murat Erdogdu ◽  
Kursat Karacabey
Keyword(s):  
Student Athletes ◽  
Eating Habits ◽  
T Test ◽  
Outbreak Period ◽  
Significant Difference ◽  
Package Program ◽  
Kolmogorov Smirnov ◽  
The Subject ◽  
The University ◽  
Smirnov Test

The aim of this study is to investigate the nutritional approaches of student athletes studying at the university during the coronavirus outbreak period. Participants consisted of students studying and doing sports at the University. 446 students, 246 males and 200 females, participated in the study. Besides the personal form, students were filled the questionnaire testing questionnaire. Students voluntarily participated. The surveys were done on social media. Nutritional habits questionnaire consists of 12 questions. In the preparation of the survey questions, the questions proved validity of the researches which have been done on the subject before have been used. SPSS 23.00 package program was used in statistical analyses. Kolmogorov-Smirnov test was performed to test whether the data was normally distributed and it was determined that the data showed normal distribution. Independent t-test, paired t-test, unidirectional variance analysis and LSD tests were used in statistical operations. There was no significant difference in students' nutrition approaches by gender, both in the pre-outbreak period and in the outbreak period points (p> 0.05). Nutrition scores were significantly increased during the outbreak period (p <0.001). A significant difference was found between the students who felt bad before the epidemic and those who felt well before the epidemic and their nutritional scores according to the levels they felt (p <0.05). A significant difference was found between the pre-outbreak period and post-epidemic nutrition scores of the sports faculty students (p <0.05). During the coronavirus epidemic, university student athletes have either increased their nutritional opportunities or have changed their eating habits positively to keep their immune systems strong or both. The fact that sports faculty students have better nutrition compared to other faculty students can be attributed to their taking courses in nutrition, health and similar. It is recommended to give lectures or seminars on nutrition to athlete students. Keywords: Student, Nutrition, Sports Nutrition, Nutritional Approach, Covid-19

The effect of Bayer’s strategy on developing divergent thinking among students Second intermediate grade in the subject of Arab Islamic history

2021 ◽  
Vol 26 ◽  
pp. 273-304
Keyword(s):  
Divergent Thinking ◽  
Second Grade ◽  
Control Group ◽  
Intermediate School ◽  
Islamic History ◽  
Intermediate Students ◽  
Significant Difference ◽  
The Subject ◽  
Level Of Significance ◽  
Experimental Group

The current research aims to know (the effect of Bayer's strategy on developing divergent thinking among second-grade intermediate students in the subject of Arab-Islamic history) . In order to achieve the goal of the research, the researcher puts the following null hypothesis : 1.There is no statistically significant difference at the level of significance (0.05) between the mean scores of the experimental group students who study according to the Bayer strategy and the average scores of the control group students who study in the traditional way in the dimensional divergent thinking test . The researcher chose an experimental design with two groups, one experimental and the other a control, and the two research groups (experimental - control) were rewarded with the following variables : (Chronological age in months, grades of the previous year, IQ test, pre-branched thinking test ) . The current research was limited to second-grade intermediate students in (Al-Furat Intermediate School for Boys), which is one of the schools affiliated to the city of Baghdad / Directorate of Education Al-Karkh First. (32) students, and the second represented the control group who were studying the same subject in the traditional way, and they numbered (31) students. Thus, the number of the research sample reached (63) students. 2017-2018 . The researcher prepared the divergent thinking test in light of the steps and main questions of the Sheikhly test (2001) in measuring the ability of divergent thinking of the students of the research sample . : The search results showed .The experimental group students who study history according to the Bayer strategy outperformed the control group students who study history using the traditional method in the dimensional branched thinking test . Keyword: Divergent thinking Bayer Stratagy

scholarly journals Use of platelet-rich plasma in regenerative medicine: technical tools for correct quality control

2018 ◽  
Vol 4 (1) ◽  
pp. e000442 ◽  
Author(s):  
Hajer Graiet ◽  
Anna Lokchine ◽  
Pauline Francois ◽  
Melanie Velier ◽  
Fanny Grimaud ◽  
...  
Keyword(s):  
Quality Control ◽  
Whole Blood ◽  
Sports Medicine ◽  
Platelet Rich Plasma ◽  
Systematic Sampling ◽  
Significant Difference ◽  
Platelet Concentration ◽  
Harvesting Method ◽  
Clinical Interest ◽  
The Subject

Background/aimsPlatelet-rich plasma (PRP) injections are used in sports medicine and have been the subject of increased clinical interest. However, there have been very few reports of the composition of initial whole blood and the final PRP product. The objective of this study was to provide technical tools to perform a correct characterisation of platelets, leucocytes and red blood cells (RBCs) from whole blood and PRP.MethodsBlood and PRP were obtained from 26 healthy volunteers and prepared according to the varying parameters encountered within PRP process preparation and quantification (harvesting method, anticoagulant used, sampling method, counting method). Concentrations were measured at t=0, t=1, t=6 and t=24 hours.ResultsSampling of blood in Eppendorf tubes significantly decreased platelet concentration over time, whereas sampling in Microvette EDTA-coated tube kept platelet concentration stable until 24 hours. A non-significant difference was observed in platelet counts in PRP with impedance (median (IQR): 521.8 G/L (505.3–524.7)) and fluorescence (591.5 G/L (581.5–595.8)) methods. Other studied parameters did not influence platelet concentrations in blood or PRP samples. Leucocytes and RBC counts were similar whatever the anticoagulant, sampling, harvesting and counting methods used for both blood and PRP samples.ConclusionsSystematic sampling of blood and PRP in EDTA-coated tubes for quality control is recommended. The use of a validated counter for PRP sample should also be taken into account.

scholarly journals Implementation of Imaginative Sugestion Method by Using Audio Visual Media in Learning Poetry Writing

2019 ◽  
Vol 2 (1) ◽  
pp. 28
Author(s):  
Andri Firman Budiansah
Keyword(s):  
Research Design ◽  
Visual Media ◽  
T Test ◽  
Significant Difference ◽  
Poetry Writing ◽  
Before And After ◽  
Post Test ◽  
The Subject ◽  
Audio Media

The research is led by the problems on student’s skill in writing poetry in eight grade SMPN 3 Cipanas cianjur. Imaginative suggestion method with audio visual media does not only create comfortable atmosphere but also give suggestion that develop students amaginative skill. The research design used in this study is One Group Pre-test Post-test. The design is aimed to find out the result of the subject and to show how well the final results of each subject. Based on the results, it is shown that there is a significant difference of students’ ability of writing poetry before and after using Imaginative Suggestion method With Visual-Audio Media, it is proven by calculation with t-test obtained t arithmetic is 2.68 and t table price t 0,05 ie 2.04. it shows that t count (2.68)> t table (2.04). Then it can be concluded that the results of implementing Imaginative Suggestion method With Visual-Audio Media on Poetry Writing is effective.Keywords: imaginative suggestion method, audio-visual media, poetry writing

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