This study aims to determine the ability of footwork in badminton games for children aged 10-12 years at the Yanti Jaya Badminton Club. The type of research used in this research is descriptive ...quantitative research. Quantitative descriptive analysis is used to collect, summarize and interpret the data obtained, which is then reprocessed so that it is expected to produce a clear, holistic picture of the problem that is the object of research. The population in this study were 20 members of the Yanti Jaya badminton club. The sample used was 20 people using a sampling technique, namely Saturated Sampling (census). The results of the study obtained the proportion of the effects of the ability to walk from 20 people or (100%); the results of the excellent category were four people or (20%); the moderate type was 14 people or (70%), and the poor class was two people or (10 % ). Thus, the ability to footwork in badminton games for children aged 10-12 years at the Yanti Jaya badminton club is in the moderate category with a proportion of 70%. This proves that the analysis of footwork ability at the Yanti Jaya badminton club is already good and needs to be improved again to achieve more on the badminton sports field.
Footwork is a movement that regulates the body to position the body in such a way that it makes it easier to perform the movement of hitting the shuttlecock according to its position. The purpose of ...this technique is so that the shuttlecock can be reached in any area quickly when the opponent attacks. The purpose of this study is to test how much influence predictable and unpredictable training is against the speed of footsteps in badminton games, this study used an experimental method with the pretest-posttest control and experimental group design. The population used was 30 students of UPI Sumedang badminton UKM, the samples taken were 10 students for experimental treatment and 10 students for control treatment using techniques. Based on the results of the data analysis obtained, the average pre-test experiment 65,80 and post-test 85 show an increase in the speed of footwork after being given an exercise using android court footwork. In addition, the increase in speed in badminton UKM Students can be seen from the N-Gain scores in both groups. The N-Gain score in the experimental groups was higher than the control group ( 56,85 > 31,78) and in the t-test, on the N-Gain value, the score obtained the Sig value. (2-tailed) = 0,001 < α = 0,05. So, it can be concluded that predictable and unpredictable training affects the speed of footwork of badminton UKM students and there is a significant difference in effectiveness in the application of android court footwork exercises with conventional exercise.
The purpose of this study was to determine the results of the trial of research products in the form of video learning media for learning badminton footwork techniques. This type of research uses ...research and development. Respondents in this study used students from the physical education study program, FKIP Universitas Sriwijaya, to conduct small-scale trials and large-scale trials. The stages of testing the product of this research are small-scale trials and large-scale trials. The research product produces learning media in the form of videos with badminton footwork material. The results of the research on a small-scale trial carried out on 10 respondents obtained 71% in the eligible category to be continued in the next stage. The results of large-scale respondents trials using 15 people are get 85% very feasible category. The implication of the research is that the research product is feasible to be used in learning basic badminton footwork techniques.
Tujuan penelitian ini merupakan membentuk suatu rancangan variasi footwork permainan bulutangkis buat anak Sekolah Menengan Atas. Subjek yang digunakan dalam penelitian ini sebanyak 21 orang, yang ...terdiri berasal 6 orang uji coba gerombolan kecil dan 15 orang uji coba gerombolan besar . Penelitian ini menggunakan metode pengembangan (Research and Development/R&D) yang terdiri asal 8 tahap. Instrumen yang digunkaan buat pengumpulan data memakai angket. Teknik analisis data pada penelitian ini artinya teknik kualitatif. dari hasil uji coba gerombolan kecil terhadap 6 orang siswa ekstrakurikuler bulutangkis Sekolah Menengan Atas Negeri 1 Kualuh Selatan disimpulkan bahwa 10 varisai latihan footwork bulutangkis sudah memenuhi kriteria layak dilanjutkan pada uji coba kelompok besar menggunakan Persentase keterterapan sebesar 77%-96%. lalu hasil uji grup akbar terhadap 15 orang siswa memberikan bahwa 10 variasi latihan tadi telah memenuhi kriteria layak digunakan. Persentase keterterapan variasi asal angket yang sudah dibagikan kepada sampel menunjukkan bahwa 72%-98%. menggunakan demikian yang akan terjadi uji produk diatas maka dapat disimpulkan bahwa 10 variasi latihan tersebut layak digunakan sebagai bentuk variasi latihan buat bisa menaikkan kemampuan footwork bulutangkis serta latihan yang menarik, karena hal tadi olehat krusial dalam latihan agar latihan tadi tidak membosankan serta jadi bahan masukan setiap para instruktur bulutangkis di semua Indonesia.
Flamenco has become nowadays a very popular dance style over the world. The percussive footwork and vibration patterns created during dancing imposes high demands on the musculoskeletal system and ...the forces transmitted from the foot in a proximal direction could contribute to the stress urinary incontinence. Therefore it may be questionable for the women during pregnancy. That is why the purpose of this study was to investigate the level and effects of dynamic loading on the musculoskeletal system of the flamenco dancer during advanced pregnancy. The participant of the study was a female in the third trimester of pregnancy (34.5 yrs, 76 kg, 1.72 m). She has been practicing flamenco for 15 years. The task of the subject was the execution of ZAP-3 Test: a sequence of six footworks performed with the forefoot, heel and toes, alternatively with both feet during 15 seconds at maximum speed. Kinetic data were collected with a Kistler force plate. Afterwards, the subject filled the Waterloo Footedness Questionnaire-Revised and questionnaire on health condition. As the registrations revealed, strikes with different parts of the foot generate different impacts to those elements. The average values of the vertical component of GRF normalized to body weight throughout the whole test ranged between 0.49 («Punta») and 3.22 BW («Tacón de Planta»). On the basis of questionnaire and interview, the pregnant subject reported neither urogenital disorders, nor musculoskeletal injuries. At the same time, gravida emphasized being familiar with the pelvic floor muscles training. Due to visual observation, a proper alignment of the dancer’s body was identified: vertical trunk, stabilized spine, optimal stable pelvic position. Additionally our expectant mother performed proper configuration of the lower limb joints with semi-flexed knees and hips. To conclude, flamenco dancers should be supported to continue their training during pregnancy but the amount of loadings during classes should be discussed (type, Intensity, duration frequency of exercises). Any symptoms of pain or discomfort warrant examination by a physician. Then, as flamenco works on the core of the body, it can also help with pelvic floor muscles, assuming that the subject is aware of the right body alignment and muscle activity. That is why the attention should be more focused on the education of the dancers’ body awareness in ergonomic technique.
Penelitian ini bertujuan untuk membuat model pembelajaran berbasis video materi teknik dasar footwork bulutangkis bagi mahasiswa program studi pendidikan jasmani dan kesehatan Fakultas Keguruan dan ...Ilmu Pendidikan Universitas Sriwijaya. Penelitian ini merupakan penelitian dan pengembangan (Research and Development). Prosedur penelitian dengan mengadopsi tahapan-tahapan penelitian dari Borg and Gall. Prosedur penelitian dan pengembangan menurut Borg and Gall yaitu sepuluh langkah-langkah. Prosedur dalam penelitian ini memiliki empat langkah yaitu pengumpulan informasi di lapangan, melakukan analisis terhadap informasi yang telah dikumpulkan, membuat draft model, dan validasi ahli. Produk penelitian dilakukan validasi pada ahli permainan bulutangkis dan ahli media. Subjek penelitian adalah mahasiswa program studi Penjaskes FKIP Universitas Sriwijaya. Hasil validasi ahli permainan bulutangkis diperoleh rata-rata persentase sebesar 76,78 dengan kategori layak. Hasil penelitian dari validasi ahli media diperoleh persentase sebesar 74,38 dengan kategori layak. Implikasi dalam penelitian ini adalah produk penelitian berupa model pembelajaran berbasis video materi teknik dasar footwork bulutangkis telah dinyatakan valid sehingga dapat digunakan.
The purpose of this paper is to utilize a convolutional neural network (CNN) to identify the types of basketball footwork of athletes as a way to assist in the training of basketball players' ...footwork and to improve their performance in the game.
A traditional CNN algorithm was improved to a dual-model CNN (DMCNN) algorithm, where convolutional feature extraction was performed separately on both the acceleration and angular velocity data of footwork. The two features were then merged and subjected to principle component analysis (PCA) dimensionality reduction for identifying different types of footwork. In subsequent simulation experiments, ten basketball players' footwork data were collected using sensors. The improved CNN algorithm was used for footwork recognition and compared with the support vector machine (SVM) and traditional CNN algorithms.
The experimental results showed that the acceleration and angular velocity signals of different basketball footwork had distinct differences. The comprehensive recognition precision of DMCNN for footwork types was 98.8 %, and the comprehensive recall rate and overall F value were 97.8 % and 98.2 %, respectively. Its recognition time was 1.23 s. For the traditional CNN algorithm, the comprehensive precision was 87.5 %, the comprehensive recall rate was 85.7 %, and the overall F value was 86.6 %. Its recognition time was 1.99 s. As for the SVM algorithm, the comprehensive precision was 74.2 %, the comprehensive recall rate was 73.2 %, and the overall F value was 73.7 %. The recognition time was 3.68 s.
The novelty of this article lies in using two separate CNNs to extract convolutional features from acceleration and angular velocity, respectively. These features are then combined and reduced dimensionality using PCA, thereby improving both recognition accuracy and efficiency.
The purpose of this study was to explore the processes associated with successful on-court movement in professional tennis. To date, research has only provided generalised insight into the physical ...demands of tennis movement and the requisite physical skills. Data were collected through semi-structured interviews with 15 international tennis and/or strength and conditioning coaches involved in the development of tennis-specific movement in professional men's and women's tennis. A descriptive, qualitative approach was adopted, with interviews transcribed verbatim and analysed using an inductive to deductive thematic analysis. The highlighted ideas and concepts enabled the dynamic construction of higher-order themes representative of "good" tennis movers, alongside the conceptual development of a common movement "goal" or "outcome". The established higher-order themes portrayed three "styles" of "good" movers in modern professional tennis: those who were "fast" around the court, those who "read the play" well, and those who were "efficient" in their movement. The established themes provide a framework for interpreting and categorising the movement of professional tennis players as well as its underpinning skill.
The present study compared the kinematics of lower limb and trunk motion in lateral cutting maneuvers (180° turn) during side steps under preplanned (PRE) and unpredictable (UN) conditions in ...defensive basketball players. The participants were 14 players from a college female basketball team who were instructed to view an arrow directed either to the right or the left on a monitor in front of them while moving with side steps toward the right. When a right-directed arrow was provided, they side-stepped 3 m by to the right, whereas a leftdirected arrow prompted them to move 3 m to the right, perform lateral cutting to the left, and to move back to the starting spot with a side step. Trials were performed under 2 conditions: 1) PRE condition: Participants were informed about the direction of the arrow signal beforehand. 2) UN condition: Participants responded to a randomly presented direction of the arrow signal. Kinematic parameters and ground reaction force (GRF) data were collected using an optical three-dimensional motion analysis system at 300 Hz and a force plate at 1500 Hz. The data only in the lateral cutting trials were analyzed from the instant of foot strike on the force plate to the instant of toe-off during lateral cutting. The results showed that the 3-m side step shuttle time and foot contact time during lateral cutting in UN were longer than those in PRE. The horizontal component of the maximal GRF and the impulse during lateral cutting in UN were larger than those in PRE. The center of gravity (CG) lateral velocity toward the right at the cutting step foot strike was higher in UN than in PRE. In UN, the right lower limb and trunk were inclined less to the left than in PRE. The present results show that, in UN, the participants were unable to reduce their lateral velocity before the cutting step and that their right lower limb and trunk at the cutting step (middle phase) were inclined relatively to the right, thus increasing the degree of movement of their CG to the right. Therefore, the participants needed some time to move their CG back to the left, which prolonged the contact time and thus the time taken for the 3-m side step shuttle movement in UN.
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