Jumping Side Volley in Soccer—A Biomechanical Preliminary Study on the Flying Kick and Its Coaching Know-How for Practitioners

Jumping side volley has created breathtaking moments and cherished memories for us. Regrettably, a scientific study on the skill has not been found in literature. Relying on talent of athletes to improvise on the fly can hardly be considered a viable learning strategy. This study targets to fill the gap by quantifying factors contributing to develop its coaching method. Using 3D motion capture (12-cameras, 200Hz) and full-body biomechanical modeling, our study aimed to identify elements that govern entrainment of the skill by examining jumping, kicking and falling phases of its execution. Given the rarity of players who have acquired this skill, we found five subjects for the study. Twenty-three trials were captured and quantified. The results unveil the following key elements: 1) the control of trunk rotation during the jumping, 2) the angle between thighs upon take-off, 3) the whip-like control of the kicking leg during airborne, 4) timing between ball motion and limbs’ coordination, and 5) damping mechanism during falling. An accurate kick can only be achieved through repetitive training. This underlines the need for athletes to master a safe landing technique that minimizes risk of injury during practice. Therefore, training should begin with learning a safe falling technique.

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Teaching Students How to Study Mathematics: A Classroom Approach

Mathematics Teacher ◽

10.5951/mt.79.6.0410 ◽

1986 ◽

Vol 79 (6) ◽

pp. 410-413

Author(s):

Marcia Birken

Keyword(s):

High School ◽

Junior High School ◽

Junior High ◽

Senior High School ◽

College Level ◽

Mathematics Textbook ◽

Know How ◽

New Material

For a variety of reasons, students do not know how to study mathematics. In the college-level mathematics classes that I teach, even the A students rarely have a system for attacking large amounts of new material. When asked how they've studied mathematics, most students reply that they do all the assigned homework. The “doing” of the problem is viewed as sufficient for learning. This haphazard approach may lead to success or at least to passing the course in junior and senior high school, where the material is presented in manageable chunks. In college the pace of most courses, whether mainstream or remedial, is such that many students flounder without a method for synthesizing the material. Additionally, since the textbook is opened only to reach the homework problems, students are unlikely to consider a mathematics textbook as a resource. The topic of this article is teaching students, from junior high school through college, strategies for studying mathematics.

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FAKTOR-FAKTOR YANG MEMPENGARUHI CARA MEMANDIKAN BAYI YANG BENAR PADA IBU POST PARTUM

JI-KES (Jurnal Ilmu Kesehatan) ◽

10.33006/ji-kes.v4i1.162 ◽

2020 ◽

Vol 4 (1) ◽

pp. 1-5

Author(s):

Muthmainnah Zakiyyah

Keyword(s):

Post Partum ◽

Measuring Instrument ◽

Chi Square ◽

Know How ◽

Chi Square Test ◽

Preliminary Study ◽

The Right ◽

First Time ◽

And Training ◽

Provide Health Education

Abstrak Memandikan bayi memiliki tantangan tersendiri bagi orang tua terutama bila mereka baru pertama kali mempunyai seorang bayi. Tidak sedikit dari mereka yang tidak tahu bagaimana cara memandikan bayi sehingga mereka menyerahkan bayinya kepada pengasuh atau neneknya. Berdasarkan studi pendahuluan di Desa Pajurangan, pada tanggal 2 September 2019 kepada 10 ibu yang mempunyai bayi usia 0-28 hari. Didapatkan 4 ibu sudah mampu memandikan bayinya sendiri, sedangkan 6 ibu belum berani memandikan bayinya sendiri dikarenakan tali pusat belum lepas dan takut nanti bayinya tergelincir. Tujuan dari penelitian ini adalah untuk mengetahui faktor-faktor yang mempengaruhi cara memandikan bayi yang benar pada ibu post partum di Desa Pajurangan Kecamatan Gending Kabupaten Probolinggo. Desain penelitian yang digunakan adalah analitik. Penelitian ini dilaksanakan pada tanggal 1 September – 30 November 2019. Populasi semua ibu bersalin sebanyak 65. Sampling yaitu total sampling 65 responden. Instrumen ukur menggunakan cek list. Dari hasil uji chi-square dengan sistem 0,000 <0,05. Dengan demikian Ho menolak, H1 diterima, artinya umur, paritas, pendidikan dan dukungan suami/keluarga merupakan faktor yang mempengaruhi cara memandikan bayi yang benar pada ibu post partum. Dari penelitian ini diharapkan bidan memberikan pendidikan kesehatan dan pelatihan cara memandikan bayi yang benar yang bisa dilakukan pada kelas ibu hamil atau pada konseling sebelum pulang dari fasilitas kesehatan. Kata Kunci : Cara, Memandikan, Bayi, Ibu, Post Partum Abstract Bathing a baby has its own challenges for parents, especially if it is their first time having a baby. Not a few of them do not know how to bathe the baby so they give their baby to the caregiver or grandmother. Based on a preliminary study in Pajurangan Village, on September 2, 2019, there were 10 mothers who had babies aged 0-28 days. Obtained 4 mothers have been able to bathe their own babies, while 6 mothers have not dared to bathe their own babies because the umbilical cord has not been released and afraid later the baby will slip. The purpose of this study was to determine the factors that influence the correct way to bathe babies in post partum mothers in Pajurangan Village, Gending District, Probolinggo Regency. The research design used is analytic. This research was conducted on 1 September - 30 November 2019. The population of all mothers was 65. Sampling is a total sampling of 65 respondents. The measuring instrument uses a check list. From the results of the chi-square test with a system of 0,000 <0.05. Thus Ho refused, H1 was accepted, meaning that age, parity, education and husband / family support were factors that influenced the correct way of bathing a baby in a post partum mother. From this study midwives are expected to provide health education and training in how to bathe the right baby that can be done in the class of pregnant women or in counseling before returning from a health facility. Keywords: Method, Bathing, Baby, Mother, Post Partum

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Full body gait analysis may improve diagnostic discrimination between hereditary spastic paraplegia and spastic diplegia: A preliminary study

Research in Developmental Disabilities ◽

10.1016/j.ridd.2012.09.005 ◽

2013 ◽

Vol 34 (1) ◽

pp. 495-504 ◽

Cited By ~ 18

Author(s):

A. Bonnefoy-Mazure ◽

K. Turcot ◽

A. Kaelin ◽

G. De Coulon ◽

S. Armand

Keyword(s):

Gait Analysis ◽

Hereditary Spastic Paraplegia ◽

Spastic Diplegia ◽

Spastic Paraplegia ◽

Preliminary Study ◽

Full Body

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The Influence of X-Factor (Trunk Rotation) and Experience on the Quality of the Badminton Forehand Smash

Journal of Human Kinetics ◽

10.1515/hukin-2016-0006 ◽

2016 ◽

Vol 53 (1) ◽

pp. 9-22 ◽

Cited By ~ 16

Author(s):

Zhao Zhang ◽

Shiming Li ◽

Bingjun Wan ◽

Peter Visentin ◽

Qinxian Jiang ◽

...

Keyword(s):

Motion Capture ◽

Teaching And Learning ◽

Three Dimensional ◽

Biomechanical Model ◽

Kinematic Chain ◽

The Body ◽

Trunk Rotation ◽

Preparation Phase ◽

Full Body

AbstractNo existing studies of badminton technique have used full-body biomechanical modeling based on three-dimensional (3D) motion capture to quantify the kinematics of the sport. The purposes of the current study were to: 1) quantitatively describe kinematic characteristics of the forehand smash using a 15-segment, full-body biomechanical model, 2) examine and compare kinematic differences between novice and skilled players with a focus on trunk rotation (the X-factor), and 3) through this comparison, identify principal parameters that contributed to the quality of the skill. Together, these findings have the potential to assist coaches and players in the teaching and learning of the forehand smash. Twenty-four participants were divided into two groups (novice, n = 10 and skilled, n = 14). A 10-camera VICON MX40 motion capture system (200 frames/s) was used to quantify full-body kinematics, racket movement and the flight of the shuttlecock. Results confirmed that skilled players utilized more trunk rotation than novices. In two ways, trunk rotation (the X-factor) was shown to be vital for maximizing the release speed of the shuttlecock – an important measure of the quality of the forehand smash. First, more trunk rotation invoked greater lengthening in the pectoralis major (PM) during the preparation phase of the stroke which helped generate an explosive muscle contraction. Second, larger range of motion (ROM) induced by trunk rotation facilitated a whip-like (proximal to distal) control sequence among the body segments responsible for increasing racket speed. These results suggest that training intended to increase the efficacy of this skill needs to focus on how the X-factor is incorporated into the kinematic chain of the arm and the racket.

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A preliminary study on the changes in the Italian automotive supply chain for the introduction of electric vehicles

Journal of Industrial Engineering and Management ◽

10.3926/jiem.1504 ◽

2016 ◽

Vol 9 (2) ◽

pp. 450 ◽

Cited By ~ 1

Author(s):

Matteo Rossini ◽

Filippo Ciarapica ◽

Dominik Matt ◽

Pasquale Russo Spena

Keyword(s):

Supply Chain ◽

Electric Vehicles ◽

Value Chain ◽

Economies Of Scale ◽

Production Capacity ◽

Know How ◽

Automotive Supply Chain ◽

Preliminary Study ◽

Vehicle Management ◽

Automotive Supply

Purpose: A survey has been carried out among Italian car makers, suppliers, and customers to identify the potential changes that the traditional Italian automotive supply chain would need for the introduction of electric vehicles. In addition, this study investigates the degree of importance that enterprises attribute to the electric vehicle market and their perceptions about the development of this market, also evaluating which types of electric vehicles and body styles are receiving the most relevant investment.Design/methodology/approach: An empirical investigation has been carried out to examine the above-mentioned aspects. Data have been collected through an on-line survey and analysed by a descriptive statistical analysis, confirmatory factors analysis, and cluster analyses.Findings: Market penetration of electric vehicles is mainly influenced by technological choices of car makers and battery manufacturers and by the ability to organize and manage the integrated actions of stakeholders, also including component suppliers, and manufacturers of vehicle management systems. Stakeholders have to exploit economies of scale, to make use and expand long-time competencies in electric engineering with automotive know-how, and to build up cooperation with experts in the new value chain to facilitate the required transfer of know-how. Alliances and joint ventures can provide manufacturers access to the know-how, technology, and production capacity of battery suppliers. Outsourcing, especially as regards research and development, will occur even more frequently in the near future. An agile supply chain should be adopted to manage a fluctuating market demand.Originality/value: This preliminary study contributes to provide an outlook of some of the most important changes that traditional Italian automotive supply chain would need to promote the introduction of electric vehicles and their critical components with an emphasis on production aspects.

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Pelatihan Penyusunan Program Latihan Bagi Penderita Hipertensi Dan Diabetes Di Puskesmas Lapai Kota Padang

Jurnal Berkarya Pengabdian Masyarakat ◽

10.24036/jba.v1i1.16 ◽

2019 ◽

Vol 1 (1) ◽

pp. 41-46

Author(s):

Sepriadi Sepriadi ◽

Apri Agus ◽

Endang Sepdanius

Keyword(s):

Physical State ◽

Sports Injuries ◽

Sports Injury ◽

First Aid ◽

Skeletal System ◽

Know How ◽

Risk Of Injury ◽

Emergency Assistance ◽

Minor Injuries ◽

Sports Activities

The risk of injury can occur in all types of sports and is often experienced by athletes. Sports Injury is an injury to the muscular and skeletal system caused by sports activities. First Aid is emergency assistance to accident victims (sick) quickly and precisely at the scene before being evacuated to an expert person. In general, the management of sports injuries uses the principle of RICE (Rest, Ice, Compression, Elevation) which is always applied at the beginning of the injury before further handling. Exercising excessively and ignoring the correct rules of exercise, even bring injury that endangers himself. This wrong activity is due to heating does not meet the requirements, excessive fatigue, especially in the muscles, and wrong in doing sports movements. The most common injury cases, usually too ambitious to complete training targets or want to improve the training phase. A good coach will always pay attention to the state of the athlete from all aspects, one of which is from the physical state of the athlete. This means that the trainer knows how to manage the athlete not to get injured, and if he has an injury quickly know how to help, especially for minor injuries. However, not all coaches understand how the injury and how it helps for athletes. That is why there is a need for training in sports injuries and how to help for coaches who are expected to be used by athletes.

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Pelatihan Pencegahan Dan Pertolongan Pertama Cedera Olahraga Bagi Pelatih PPLP Sumatera Barat

Jurnal Berkarya Pengabdian Masyarakat ◽

10.24036/jba.v1i1.15 ◽

2019 ◽

Vol 1 (1) ◽

pp. 27-40

Author(s):

Zulman Zulman ◽

Syamsuar Abbas ◽

Deswandi Deswandi

Keyword(s):

Physical State ◽

Sports Injuries ◽

Sports Injury ◽

First Aid ◽

Skeletal System ◽

Know How ◽

Risk Of Injury ◽

Emergency Assistance ◽

Minor Injuries ◽

Sports Activities

The risk of injury can occur in all types of sports and is often experienced by athletes. Sports Injury is an injury to the muscular and skeletal system caused by sports activities. First Aid is emergency assistance to accident victims (sick) quickly and precisely at the scene before being evacuated to an expert person. In general, the management of sports injuries uses the principle of RICE (Rest, Ice, Compression, Elevation) which is always applied at the beginning of the injury before further handling. Exercising excessively and ignoring the correct rules of exercise, even bring injury that endangers himself. This wrong activity is due to heating does not meet the requirements, excessive fatigue, especially in the muscles, and wrong in doing sports movements. The most common injury cases, usually too ambitious to complete training targets or want to improve the training phase. A good coach will always pay attention to the state of the athlete from all aspects, one of which is from the physical state of the athlete. This means that the trainer knows how to manage the athlete not to get injured, and if he has an injury quickly know how to help, especially for minor injuries. However, not all coaches understand how the injury and how it helps for athletes. That is why there is a need for training in sports injuries and how to help for coaches who are expected to be used by athletes.

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Workshop on Classroom Action Research Preparation for High School Teachers and Vocational Secondary Schools

Jurnal Berkarya Pengabdian Masyarakat ◽

10.24036/jba.v1i2.22 ◽

2019 ◽

Vol 1 (2) ◽

pp. 99-107

Author(s):

Yaslindo Yaslindo ◽

Syafaruddin Syafaruddin ◽

Willadi Rasyid ◽

Jonni Jonni

Keyword(s):

High School Teachers ◽

Sports Injuries ◽

Sports Injury ◽

Skeletal System ◽

School Teachers ◽

Know How ◽

Risk Of Injury ◽

Emergency Assistance ◽

Minor Injuries ◽

Sports Activities

The risk of injury can occur in all types of sports and is often experienced by athletes. Sports Injury is an injury to the muscular and skeletal system caused by sports activities. First Aid is emergency assistance to accident victims (sick) quickly and precisely at the scene before being evacuated to an expert person. In general, the management of sports injuries uses the principle of RICE (Rest, Ice, Compression, Elevation) which is always applied at the beginning of the injury before further handling. Exercising excessively and ignoring the correct rules of exercise, even bring injury that endangers himself. This wrong activity is due to heating does not meet the requirements, excessive fatigue, especially in the muscles, and wrong in doing sports movements. The most common injury cases, usually too ambitious to complete training targets or want to improve the training phase. A good coach will always pay attention to the state of the athlete from all aspects, one of which is from the physical state of the athlete. This means that the trainer knows how to manage the athlete not to get injured, and if he has an injury quickly know how to help, especially for minor injuries. However, not all coaches understand how the injury and how it helps for athletes. That is why there is a need for training in sports injuries and how to help for coaches who are expected to be used by athletes.

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Do the Poor Know how We See Them?: Preliminary Study

Perceptual and Motor Skills ◽

10.2466/pms.1972.34.1.47 ◽

1972 ◽

Vol 34 (1) ◽

pp. 47-49 ◽

Cited By ~ 1

Author(s):

A. P. Mac Donald ◽

Ranjit K. Majumder

Keyword(s):

Social Class ◽

Social Workers ◽

Chain Store ◽

Know How ◽

The Poor ◽

Preliminary Study ◽

Rural Appalachia

A poverty scale designed to measure attitudes toward the poor was administered to 104 disadvantaged youths from rural Appalachia. 55 Ss completed the scale for self and 49 Ss completed the scale as they supposed it might be answered by the manager of a large chain store. As predicted, Ss guessed that the manager would rate the poor more negatively than they would. Males viewed the poor more negatively than females, and for all Ss negative attititudes increase with social class, as roughly indexed by Ss' fathers' levels of education. It is suggested that this technique might be useful for assessing the degree to which the poor feel alienated from various groups, e.g., politicians, welfare administrators, social workers.

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