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The Importance of Hydration for Soccer Athletes Yustika, Gaung Perwira; Santoso, Eko Budi; Sumartiningsih, Sri
Media Ilmu Keolahragaan Indonesia Vol 9, No 1 (2019): July 2019
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/miki.v9i1.18427

When playing soccer, the main mechanism for removing heat energy from the body is the evaporation of sweat from the surface of the skin. Although this mechanism is essential in regulating body temperature, this sweating process can often lead to dehydration. Dehydration is the process of losing water in the body and is often explained as a change in body mass during acute exercise. For example, 2% water dehydration is defined as a 2% body mass deficit. Thermoregulation in sweating is the main source of loss of body mass during acute exercise / exercise, but there are other contributing factors, namely loss of water and carbon dioxide through the respiratory tract produced by the substrate oxidation pathway. To get around the state of dehydration soccer players must immediately be rehydrated. Rehydration is an important part of the recovery process, good rehydration must be done both before, and especially after exercising, if the players have a body mass deficit, they must replace it with fluids and electrolytes in preparation for training or the next match.

Futsalâ€™s Inside Human Sport Physiology : A Literatures Description Yustika, Gaung Perwira
Journal of Physical Education Health and Sport Vol 6, No 2 (2019): November
Publisher : Universitas Negeri Semarang (Unnes)

Futsal is played with high intensity (indoor version of football played by 5 people per team). With the dimensions of the playing field 40 x 20 m and the infinite turnover, as well as the task of defense and attack constantly, futsal players perform activities with high intensity such as sprints, acceleration, deakselation and changes in the direction of the game, creating a separate burden to the body's physiological processes involves the aerobic and anerobic metabolic systems. With the fact this game is played with high intensity then the research data found the average pulse rate (HRaverage) reached 174 times per minute, so that it can reach 90% of the maximum pulse rate (HRmaximum) for 72% of game time. This exercise also requires cardiovascular adaptation of 85-90% of the maximum pulse rate per individual. As for aerobic capacity to fulfill oxygen availability alone, the recommended VO2 max value is in the range of 50-55 ml / kg / minute is the recommended range for a minimum of professional futsal athletes. With more and more playing experience, the knowledge and training patterns practiced by futsal athletes make physical and physiological needs to support the performance of the game be fulfilled.

Masalah Yang Dihadapi Dunia Pendidikan Dengan Tutorial Online: Sebuah Short Review Yustika, Gaung Perwira; Subagyo, Adam; Iswati, Sri
Tadbir : Jurnal Studi Manajemen Pendidikan Vol 3, No 2 (2019)
Publisher : Institut Agama Islam Negeri (IAIN) Curup

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29240/jsmp.v3i2.1178

Despite the many benefits of virtual distance learning (online), in its course distance education still has many problems. Educators and managers try to continue to improve the quality of teaching and the struggle of online class facilitators to improve the quality of distance education, but it is discovered that online class data is not the student's first choice. The results show that one of the problems in online education comes from the drop out / failure rate of students which is more common in virtual classrooms compared to traditional classes. Other studies reveal several factors such as the time needed to complete the module, lack of understanding of the context in the subject matter, problems with software accessibility, availability of reliable teachers, lack of support from the government and other reasons can create a decrease in motivation and a less conducive learning atmosphere.

MENTAL FATIGUE IN SOCCER GAME : LITERATURE REVIEW Yustika, Gaung Perwira
Journal of Sport Science and Education Vol 3, No 1 (2018)
Publisher : Fakultas Ilmu Olahraga, Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jossae.v3n1.p31-40

Soccer is a sport-game that needs intermittent cognitive ability, the requirement is for making quick and accurate decision under dinamic environment in the soccer pitch. This endurance needs make soccer a sport that mentally fatigue, which the impact to decrement in performance to to combination of physical fatigue and mental. Previous study showed us that mental fatigue influenced physical capacity and technical performance of soccer players, this made more experienced soccer players was more accurate to take decision than the non experienced one.Mental Fatigue in fact can reduce ability of technical areas a player, one of them is passing accuracy. The Loughborough Soccer Passing Test (LSPT) can be used to measured technical aspect of soccer players that influenced by mental fatigue, compared between control group and mental fatigue group. And the result showed the penalty time done by longer time than control group.Then, the mental fatigue is also influenced the physical capability of a player. The measurement can be done by Yo-yo IR1 test. The publication that used this protocol measurement showed us that energy expenditure and distance that can be covered by players decreased in subject during mental fatigue. This made a hypotesis one that mental fatigue also impact on physical performance of a player.

Digital Literacy in Formal Online Education: A Short Review Yustika, Gaung Perwira; Iswati, Sri
Dinamika Pendidikan Vol 15, No 1 (2020): June 2020
Publisher : Fakultas Ekonomi, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/dp.v15i1.23779

This study aims to explain the current findings of digital literacy in formal online education. The methods of research is a type of library descriptionÃ‚Â obtained from relevant scientific articles obtained from internet search media library engines: proquest, researchgate, google scholar and other search engines with keyword search "digital literacy" to find the publication of related scientific papers / relevant to the topic. Then the 41 articles found (listed in the references) are studied and then explained from the author's perspective. Digital literacy is multi-dimensional, built by multi construct hypotesis. In the previous research found a higher level of digital literacy that was positively related to the output of learning outcomes in the subjects studied. Online learnersÃ‚Â feel anxious because they do not understand and are accustomed to online classes, especially for those who have limited computer skills. Most importantly, independent students get the final grade of the program far better than non-independent students. The best predictor of academic success, measured by the final grades, namely components of academic skills, reading and writing abilities. Higher levels of digital literacy positively affected the high output of learning outcomes to student academic performance.

Manfaat Vitamin D untuk Pemain Sepak Bola : Mini Literature Review Yustika, Gaung Perwira; Santoso, Eko Budi; Hadi, Cholichul; Sumartiningsih, Sri
Media Ilmu Keolahragaan Indonesia Vol 10, No 1 (2020): July 2020
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/miki.v10i1.18426

Permainan sepakbola dicirikan dengan pola aktivitas yang berubah-ubah, olahraga dengan durasi yang panjang dengan intensitas yang tinggi dan aksi yang eksplosif seperti melakukan akselarasi, deakselarasi, merubah arah, melompat, dan menjegal yang tentunya memerlukan kerja yang tinggi dari daya tubuh. Di dalam pertandingan kebutuhan energi sangat tinggi, dipenuhi dengan metabolisme aerob dan anaerob, yang mana perlu dibarengi dengan asupan nutrisi berkualitas dalam bentuk mikronutrisi khususnya asupan/pemaparan vitamin D untuk pemain agar dapat menunjang dan menjaga performa permainan dari seorang pemain, terlebih pada level sepakbola elit. Vitamin D sendiri adalah suatu prekursor hormon yang memiliki peranan penting di dalam menjaga kesehatan tulang dan fungsi imunitas. Penemuan reseptor vitamin D pada sel otot rangka manusia telah membawa para ilmuwan fisiologi otot untuk menemukan peranan penting vitamin D dalam meregulasikan sintesis protein dan fungsi otot. Pada atlit sepakbola elit, terdapat kebutuhan konstan vitamin D di dalam memaksimalkan sintesis protein untuk memenuhi kebutuhan fisik dari latihan harian. Selain dari pemaparan sinar matahari vitamin D pun dapat didapatkan dari sumber makanan yang mengandung nutrisi ini (hewani dan nabati).Soccer was characterized with activity that changed periodically during the game, this sport has long duration and with high intensity dan explosive action like doing acceleration, deacceleration, changing direction, jumping, and tackling. Of course in order to doing that this sport needs high rate of physical performance of the players. In the match, energy requirements is very high, fulfill by aerob metabolism and anaerob, to help the metabolism regulation, micronutrien intake especially vitamin D intake/exposure for the players to support and maintain performance of soccer players, especially in the elite level. Vitamin D is a hormonal precursor that hold an important role to maintain bone health and imunity function. The discovery of vitamin D receptor in human skeletalÃ¢â‚¬â„¢s cells made attention to Muscle Physiologyst in order to find a way how vitamin D regulated protein synsthesis and muscle function. For soccer elite athletes, thereÃ¢â‚¬â„¢s constant needs of vitamin D to built synthesis protein in order to support the physical requirements from daily training. Besides sunlight exposure, vitamin D can be acquired from dietary foods that contain this vitamin (animal and plant source).Soccer was characterized with activity that changed periodically during the game, this sport has long duration and with high intensity dan explosive action like doing acceleration, deacceleration, changing direction, jumping, and tackling. Of course in order to doing that this sport needs high rate of physical performance of the players. In the match, energy requirements is very high, fulfill by aerob metabolism and anaerob, to help the metabolism regulation, micronutrien intake especially vitamin D intake/exposure for the players to support and maintain performance of soccer players, especially in the elite level. Vitamin D is a hormonal precursor that hold an important role to maintain bone health and imunity function. The discovery of vitamin D receptor in human skeletalÃ¢â‚¬â„¢s cells made attention to Muscle Physiologyst in order to find a way how vitamin D regulated protein synsthesis and muscle function. For soccer elite athletes, thereÃ¢â‚¬â„¢s constant needs of vitamin D to built synthesis protein in order to support the physical requirements from daily training. Besides sunlight exposure, vitamin D can be acquired from dietary foods that contain this vitamin (animal and plant source).

PHYSIOLOGY OF SOCCER IN THE HEAT Yustika, Gaung Perwira
Jurnal Ilmu Keperawatan dan Kebidanan Vol 9, No 2 (2018): JURNAL ILMU KEPERAWATAN DAN KEBIDANAN
Publisher : STIKES Muhammadiyah Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26751/jikk.v9i2.457

Soccer is a sport play-able in various condition of environment, and one factor that affects this game is in heat situation, that can be one of key factor that change the match outcome. For the example is the big possibility that visiting team outside Arab countries gone to played at Gulf Region decreased winning possibility 3% for a increased 1Â°C temperature compared to the home team that easier to win under this circumstances. The home team had already aclimatized with the environment condition and often played in the heat temperature.Played soccer in the heat could increased sweat rate and peripheral vasodilation as a result to released the extra heat from the body, which affected dehidration phase and more metabolism to make more energy. In the elite level, pressure from the enviromental factors attracted the attention of both practitioners and the policyâ€™s holders. In the Uni European Zone, match was usually played in the heat (example: at Madrid, Spain, at 30 degree of celcius). Temperature that exceeds 30 degree of celcius (maximum at 35 degree) for the example at the previous world cup 2014 Brazil could made the players got stressed because of the heat and got problems, one of them is decreased 3% of passing accuracy.

Futsal’s Inside Human Sport Physiology : A Literatures Description Yustika, Gaung Perwira
Journal of Physical Education Health and Sport Vol 6, No 2 (2019)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpehs.v6i2.20658

Futsal is played with high intensity (indoor version of football played by 5 people per team). With the dimensions of the playing field 40 x 20 m and the infinite turnover, as well as the task of defense and attack constantly, futsal players perform activities with high intensity such as sprints, acceleration, deakselation and changes in the direction of the game, creating a separate burden to the body's physiological processes involves the aerobic and anerobic metabolic systems. With the fact this game is played with high intensity then the research data found the average pulse rate (HRaverage) reached 174 times per minute, so that it can reach 90% of the maximum pulse rate (HRmaximum) for 72% of game time. This exercise also requires cardiovascular adaptation of 85-90% of the maximum pulse rate per individual. As for aerobic capacity to fulfill oxygen availability alone, the recommended VO2 max value is in the range of 50-55 ml / kg / minute is the recommended range for a minimum of professional futsal athletes. With more and more playing experience, the knowledge and training patterns practiced by futsal athletes make physical and physiological needs to support the performance of the game be fulfilled.

Digital Literacy in Formal Online Education: A Short Review Yustika, Gaung Perwira; Iswati, Sri
Dinamika Pendidikan Vol 15, No 1 (2020): June 2020
Publisher : Fakultas Ekonomi, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/dp.v15i1.23779

This study aims to explain the current findings of digital literacy in formal online education. The methods of research is a type of library descriptionÂ obtained from relevant scientific articles obtained from internet search media library engines: proquest, researchgate, google scholar and other search engines with keyword search "digital literacy" to find the publication of related scientific papers / relevant to the topic. Then the 41 articles found (listed in the references) are studied and then explained from the author's perspective. Digital literacy is multi-dimensional, built by multi construct hypotesis. In the previous research found a higher level of digital literacy that was positively related to the output of learning outcomes in the subjects studied. Online learnersÂ feel anxious because they do not understand and are accustomed to online classes, especially for those who have limited computer skills. Most importantly, independent students get the final grade of the program far better than non-independent students. The best predictor of academic success, measured by the final grades, namely components of academic skills, reading and writing abilities. Higher levels of digital literacy positively affected the high output of learning outcomes to student academic performance.

BIOLOGY LESSON BY USING ANIMATION VIDEO’S MEDIA FOR SENIOR HIGH SCHOOL SYUDENTS Yustika, Gaung Perwira
Qardhul Hasan: Media Pengabdian kepada Masyarakat Vol. 4 No. 2 (2018): OCTOBER
Publisher : Universitas Djuanda

The goal of giving Biology lesson at non formal course for senior high school students is for making them prepare on the school exams, enter university and as a important knowledge for the application functional of their daily life. Although biology is one of science subjects that everyday around us and in our daily environments, the students uninterested toward this subject, and having difficulties understanding biology lesson. Meanwhile, the writer found that a few of students take biology as an unimportant lesson at many reasons, one of them is more like another science subjects.The animation playing of videos was done at study course institute of Suhaymie Institute that located at seruni street number 51, Ketapang, Genteng, Surabaya, east Java. This activity ran at 2017/2018 academic calendar started from september 2017 to march 2018. The result showed all of students gave positive feedback 100% between 4 classes (alpha, beta, gamma, and delta) at the end of the lesson. The students became more understand about the lesson because video animation showed them audio-visually and the biological process can be seen directly.

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