scholarly journals Analisis Gerak Pointing Pada Olahraga Petanque

2020 ◽  
Vol 5 (1) ◽  
pp. 65-75
Author(s):  
Adhe Oktaria Bustomi ◽  
Taufiq Hidayah ◽  
Ardo Okilanda ◽  
Dede Dwiansyah Putra

This study aimed to analyze pointing movement skill of Semarang Petanque athlete. This study was descriptive quantitative design which described systematically facts and characteristics of pointing movement by Semarang Petaque Athlete.  The pointing movements as data were descriptive. This analysis used descriptive statistic which measured frequency. This data was taken from Biomechanics aspect of 3 pointing movements of Petaque by 8 men and women players of Semarang city. They were; (1) holding a boule, (2) foot position, and (3) throwing the boule. The measurement was carried out by two national coaches and one international coach of Petaque. The result shows that; 1) the average value of holding a boule is 4.4 or 88% of percentage which categorized as very good, 2) the average value of foot position is 4.6 or 92% of percentage which categorized as very good, and 3) the average value of throwing a boule is 3.72 or 74.4% of percentage which categorized as good. Overall movements point out good category with 88% of percentage.    

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Jacques Luauté ◽  
Sophie Jacquin-Courtois ◽  
Jacinta O'Shea ◽  
Laure Christophe ◽  
Gilles Rode ◽  
...  

Adaptation to right-deviating prisms is a promising intervention for the rehabilitation of patients with left spatial neglect. In order to test the lateral specificity of prism adaptation on left neglect, the present study evaluated the effect of left-deviating prism on straight-ahead pointing movements and on several classical neuropsychological tests in a group of five right brain-damaged patients with left spatial neglect. A group of healthy subjects was also included for comparison purposes. After a single session of exposing simple manual pointing to left-deviating prisms, contrary to healthy controls, none of the patients showed a reliable change of the straight-ahead pointing movement in the dark. No significant modification of attentional paper-and-pencil tasks was either observed immediately or 2 hours after prism adaptation. These results suggest that the therapeutic effect of prism adaptation on left spatial neglect relies on a specific lateralized mechanism. Evidence for a directional effect for prism adaptation both in terms of the side of the visuomanual adaptation and therefore possibly in terms of the side of brain affected by the stimulation is discussed.


2012 ◽  
Vol 433-440 ◽  
pp. 2349-2355
Author(s):  
Jun Min Du ◽  
Hai Wen Shi

The experiments were aimed at determining the effect of target position on movement time when performing a target pointing movement task. 21 subjects performed pointing movements with 72 conditions of various target position. The movement time data were collected. It was shown that the starting point position and target position greatly affect the movement time. As a result, the movement times were not explained satisfactorily by the conventional Fitts’ model. The conventional model was improved by introducing the target position factor into. Compared with the conventional Fitts’ model, the new model could describe the data better, both in term of contribution value (r2) and the standard error of the residual between the predicted value by model fit and the measured movement time.


2014 ◽  
Vol 49 (1) ◽  
pp. 57-76 ◽  
Author(s):  
Patricia Arnaiz ◽  
Jessica Pérez-Luzardo

ABSTRACT Few studies have focused on the anxiety experienced by learners of English as a foreign language in the context of Spanish universities. This study reports on the findings of an investigation into the sources of 216 Spanish university students’ anxiety and incorporates two underexplored aspects in this area, namely, the responsibility students attribute to different agents and the perception students have of their own ability to cope during an anxiety episode. A qualitative/quantitative design was used. Results indicated that the primary source of anxiety related to the speaking skill. Quantitative analyses revealed that learners place the main responsibility for their anxiety on themselves and that women hold themselves responsible for their anxiety to a greater degree than men. The perceived coping ability of men and women was ranked below ‘fair’. Theoretical and practical implications are discussed.


1985 ◽  
Vol 1 (2) ◽  
pp. 131-138 ◽  
Author(s):  
Robert J. Gregor ◽  
William C. Whiting ◽  
Raymond W. McCoy

The purpose of this investigation was to record the performance of all male and female competitors in the discus throw during the 1984 Olympic Games. The final rounds of the men's and women's discus throw were filmed at 120 fps using two high-speed 16mm LoCam cameras. Height, angle, and velocity of the discus and the thrower's trunk angle were measured at release in the best three throws of the Gold, Silver, and Bronze medalists in both the men's and women's division. Little difference was observed between men and women regarding the angle and velocity of release, and results were comparable with those from previous studies on elite performers. But differences were observed in foot position at release and height of release between men and women. It appeared the men had more vertical thrust in taking them off the ground prior to release and, even relative to their greater body height, released the discus with a higher arm position. The three-dimensional nature of this event precludes any further interpretation at this time.


2014 ◽  
Vol 493 ◽  
pp. 594-599
Author(s):  
I. Made Londen Batan ◽  
Reinaldi Hendarto

In the present work, a multi-gender bike, which can be used by men and women, was designed. The integrated design method is used to develop a bicycle frame. As a human transportation the frame is must be light, strong, and comfortable for rider. The frame of bicycle is built with the material of aluminum alloy T-6061 and is produced as prototype for a multi gender purpose. With 100 kg load the strength of material is calculated, and the result shows that the frame critical strength is smaller than material ultimate strength. The prototype was tested by 5 respondents who have an average weight of 68.2 kg, and height 169.4 cm. Pedal test is conducted with 5 level of speed such as 6, 8, 10, 12, and 14 mph in 6 minutes of cycling respectively. The paddle energy during cycling was determined. The results show that the paddle energy increase and follow the increasing of speed. However since 10 mph of speed the paddle energy tends to be fixed with average value of 40 kcal. Therefore the tension leg muscles before and after cycling is going together by increasing the speed. The RULA method is used for determining the ergonomic of multi-gender bicycle, and the result shows that the value of risk injury is 3, that mean the developed bike is ergonomic.


2015 ◽  
Vol 12 (1) ◽  
pp. 95-108
Author(s):  
Yulfiana Rohmatin ◽  
Eva Latipah

This study aims to describe self-regulated learning of students at the same time examine the relationship between self-regulated learning with student motivation in choosing majors. Subjects in this study were students majoring in Arabic Education (PBA) Faculty of Tarbiyah and Teaching UIN Sunan Kalijaga both men and women as many as 100 people. Interviews and scale self-regulated learning is used as an instrument in data collection.The results show: first, self-regulated learning of students as a whole are in the medium category (62%) with the highest aspect is the aspect of self-motivation (average value 20.43). Secondly, there is a significant positive relationship between self-regulated learning and motivation in choosing majors (r = 0.876 and p = 0. 004).


2021 ◽  
Vol 11 (1) ◽  
pp. 87-89
Author(s):  
Alexey Gorbunov ◽  
Yuri Gromov ◽  
Dmitry Parshin ◽  
Vladimir Egorov ◽  
Egor Dolgov ◽  
...  

The study of human motor activity during sleep in the period of adolescence/early adulthood was carried out. The study involved 35 healthy people — 18 women (51.5%) and 17 men (49.5%) aged 18 to 21 years. The data was obtained and processed with the employment of an original information-analytical system developed by the authors. When analyzing the data, we identified and used the following parameters: the number of movements, the maximum value of jerk and the coefficient of motor activity. For the number of movements, the average value was 9.6 and 10.2 for men and women, respectively. For the maximum value of jerk, the average value was 26.4 g/s and 24.3 g/s for men and women, respectively. For the coefficient of physical activity, the average value was 10.3% and 12.7% for men and for women, respectively. Thus, the results of the study are fundamental for understanding the adolescent period of postnatal human ontogenesis, indicate sexual dimorphism, and can also be used in research and practice in the field of physiology, neurology, neurosurgery, psychiatry and functional diagnostics with account of the specific age interval, as well as for prognosis.


1957 ◽  
Vol 3 (4) ◽  
pp. 239-248 ◽  
Author(s):  
Irving Gray ◽  
James G Young

Abstract The Weil-Malherbe and Bone method for the analysis of the plasma concentration of epinephrine and norepinephrine has been modified and used to determine the plasma concentration in normal humans. The average value for epinephrine in the plasma of men in this series was less than 0.11 µg./L.; for women it was 0.47 µg./L. The average value for norepinephrine in men was 3.4 µg./L. and in women it was 4.9 µg./L. The differences between the concentrations in men and women are significant, P<0.001 and P<0.01 for epinephrine and norepinephrine, respectively. Evidence has been presented to indicate the specificity of the method. Reproducibility and recovery data have been given.


2019 ◽  
Vol 19 (02) ◽  
pp. 1940016 ◽  
Author(s):  
KODAI KITAGAWA ◽  
YOSHIKI NISHISAKO ◽  
TAKAYUKI NAGASAKI ◽  
SOTA NAKANO ◽  
CHIKAMUNE WADA

Most caregivers have low back pain which results from frequent care activities such as assistance motion that supports transfer and standing-up. Various parameters are associated with the caregiver’s lumbar load. In this study, we focus on the foot position of the caregiver as one of the subjective adjustable parameters. This study aimed to analyze the relationship between foot position and stresses of the L4–L5 joint as lumbar load during supporting standing-up via musculoskeletal simulation. The musculoskeletal model was tasked with simulating supported standing-up motions based on a specific pelvic position and angular variation of each joint. The anterior foot (left foot) was fixed, and the posterior foot (right foot) was moved to three backward positions and three rightward positions, thus obtaining nine posterior foot positions. Compressive, anteroposterior shear, and lateral shear stresses of the L4–L5 joint were compared for nine foot positions. The results showed that as the anteroposterior distance and lateral widths between both feet increased, the average value of compressive/shear stress of the L4–L5 joint during motions decreased. From our findings, we hypothesized that the foot position may reduce the lumbar load and prevent low back pain.


2020 ◽  
Vol 66 (2) ◽  
pp. 216-221 ◽  
Author(s):  
Eduardo Simón-Pérez ◽  
Clarisa Simón-Pérez ◽  
David Alonso-Peña ◽  
Alejandro Pontón-Cortina ◽  
Esther Chicharro-Luna ◽  
...  

SUMMARY In diabetics, foot deformities are risk factors that increase the risk of amputation as a result of developing ulcers. However, knowledge of the influence of plantar stiffness is still limited. The main objective was to describe connections between the degree of stiffness of the ankle, atypical amputation, and the Foot Posture Index (FPI). METHODS 62 diabetic patients, 58 with type 2 and 4 with type 1 (average age 63.35 years) were included. Records of foot deformities were included; A range of motion test of the ankle joint was used to determine the degree of stiffness. An exploratory analysis of the association of foot position and the degree of rigidity was performed. RESULTS The dorsal flexion range of the ankle was 9.6 ± 5.1 0, 13.8 ± 5.9 0 and 17.2 ± 6.5 0 and 20.5 ± 6.8 0 to 45, 67, 89 and 111 N respectively in the amputated feet., And 14 patients (22.58%) had a high level of pronation of IPF with an average value of 3.7 ± 2.629, CI (3.032.-4.367) in amputated feet compared to non-amputees. We use the device “Iowa ankle range of motion” (IAROM) to determine the differences in ankle stiffness. Proper IPF was associated with the presence of amputation and an increase in stiffness CONCLUSIONS There was an increase in the degree of limitation of movement of the ankle, as a greater force was applied. Comparing FPI between the groups, there was a higher frequency of prone feet in the group of amputees


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