1,720,957 research outputs found
Pengaruh Waktu Pemulihan Setelah Pertandingan Terhadap Daya Ledak Otot Tungkai Pada Atlet Sepakbola
No full textOlahraga telah menjadi salah satu bidang yang populer di kalangan
masyarakat saat ini. Lingkup olahraga tidak hanya sebagai sarana meningkatkan
kebugaran, juga sebagai sarana untuk meningkatkan prestasi melalui kompetisi,
baik kompetisi nasional maupun internasional. Salah satu bentuk olahraga prestasi
yang banyak diminati adalah olahraga sepakbola.
Dalam skala internasional dan nasional, hampir semua klub sepakbola
mengikuti beberapa kompetisi dalam satu waktu, sehingga jarak antar
pertandingan yang harus dijalani klub menjadi dekat. Selain itu, klub-klub
sepakbola juga melakukan latihan rutin dan uji coba dengan tim-tim lain sebagai
persiapan dalam menghadapi kompetisi untuk meningkatkan kemampuan setiap
atletnya. Hal ini mengakibatkan jadwal latihan dan pertandingan bagi para atlet
menjadi sangat padat, sehingga waktu pemulihan menjadi singkat. Waktu
pemulihan yang cukup singkat ini dapat menyebabkan kelelahan bagi atlet.
Menurut Bengtsson et al (2017), waktu pemulihan <3 hari meningkatkan resiko
cedera 18-22% dibandingkan dengan waktu pemulihan ≥5 hari.
Kelelahan pasca pertandingan diakibatkan oleh beberapa hal, yakni
dehidrasi, deplesi glikogen, kerusakan otot, dan kelelahan mental. Salah satu
dampak yang dapat mempengaruhi performa atlet adalah deplesi glikogen karena
glikogen yang merupakan sumber energi utama bagi otot dan hal ini akan
mempengaruhi kekuatan otot yang merupakan faktor yang mempengaruhi daya
ledak otot
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Effect of Recovery Time After Match on Muscle Explosive Power on Football Athletes
No full textFootball is one of the most prestigious forms of sports that are in great demand by the public. Many football clubs that take part in the competition have a tight match schedule. This causes the recovery time for athletes to be short and lead to fatigue. The purpose of this study was to determine the effect of recovery time after the match on the explosive power of leg muscles in soccer athletes. This study was an experimental study with a pretest-posttest group design. The sampling method used was simple random sampling to get 40 research subjects divided into 2 groups, namely groups with recovery time of 2 days and groups with recovery time of 5 days. The assessment used is measurement of explosive limb muscle power using the vertical jump technique before and after receiving the recovery period. To test the normality of data using Shapiro-Wilk continued with the comparative data test in the form of an unpaired t test. The results of the study in groups with a recovery time of 2 days were worth -3.7cm and the group with a recovery time of 5 days was 2.9cm. These results were analyzed using unpaired t-test showing p value = 0,000 (p<0.05) which showed there were significant differences between the two groups. The conclusion of this study is that there is an effect of recovery time after the game on the leg muscle explosive power in soccer athletes. Recovery time of 5 days is better than 2 day after competition. It is very important to pay attention to recovery time in athletes, the recommendation of this study is a minimum of 5 days
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Effect Of Recovery Time After Match On Muscle Explosive Power On Football Athletes
No full textFootball is one of the most prestigious forms of sports that are in great demand by the public. Many football clubs that take part in the competition have a tight match schedule. This causes the recovery time for athletes to be short and lead to fatigue. The purpose of this study was to determine the effect of recovery time after the match on the explosive power of leg muscles in soccer athletes. This study was an experimental study with a pretest-posttest group design. The sampling method used was simple random sampling to get 40 research subjects divided into 2 groups, namely groups with recovery time of 2 days and groups with recovery time of 5 days. The assessment used is measurement of explosive limb muscle power using the vertical jump technique before and after receiving the recovery period. To test the normality of data using Shapiro-Wilk continued with the comparative data test in the form of an unpaired t test. The results of the study in groups with a recovery time of 2 days were worth -3.7cm and the group with a recovery time of 5 days was 2.9cm. These results were analyzed using unpaired t-test showing p value = 0,000 (p<0.05) which showed there were significant differences between the two groups. The conclusion of this study is that there is an effect of recovery time after the game on the leg muscle explosive power in soccer athletes. Recovery time of 5 days is better than 2 day after competition. It is very important to pay attention to recovery time in athletes, the recommendation of this study is a minimum of 5 days
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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