cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
jssf@mail.unnes.ac.id
Phone
-
Journal Mail Official
jssf@mail.unnes.ac.id
Editorial Address
Sekaran, Kec. Gn. Pati, Kota Semarang, Jawa Tengah 50229
Location
Kota semarang,
Jawa tengah
INDONESIA
JSSF : Journal of Sport Science and Fitness
Published by Universitas Negeri Semarang
ISSN : -     EISSN : 27455718     DOI : https://doi.org/10.15294/jssf
Core Subject : Education,
Other
Journal of Sport Science and Fitness (JSSF) is an international, double-blind peer reviewed journal. It is published two times a year, on July and November. We do focus on publishing quality articles, therefore only 10 articles each issue of publication. JSSF considers submissions on any aspect of sport science and fitness across age groups and settings.
Arjuna Subject : Umum - Umum
Articles 34 Documents
 1   2   3   4 
EFFECTIVENESS OF WHEY PROTEIN AND SOYMILK ON MUSCLE MASS AND HEMATOCRIT LEVELS OF VOLLEYBALL ATHLETES Ulvie, Yuliana Noor Setiawati; Nabila, Aphrodhit Justicia; Rosidi, Ali; Labtrobdiba, Zahra
Journal of Sport Science and Fitness Vol. 10 No. 1 (2024): Journal of Sport Science and Fitness
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jssf.v10i1.7229

Abstract

Volleyball is one of the team sports that requires robust muscle mass for exceptional performance and endurance. Protein intake contributes to the formation of muscle mass and red blood cells that are tightly linked to hematocrit levels. The objective of this study was to determine the effectiveness of whey protein and soymilk on muscle mass and hematocrit levels in volleyball athletes. The study was a true experiment with a randomized pre-test and post-test design, involving 20 adolescent, male volleyball athletes divided into 2 groups: whey protein and the soymilk group selected by purposive sampling. The research variables were muscle mass and hematocrit levels. Statistical analysis used independent t-test and paired t-test. The results showed increased muscle mass in the whey protein group (3.50 ± 15.04), but the opposite was found in the soymilk (-1.82 ± 6.46), resulting in significant difference in muscle mass changes between groups (p=0.020). Both groups exhibited reduced hematocrit levels (whey protein group = -3.50±7.69; soymilk group= -1.20±6.30), with a significantly higher decrease shown in the whey protein group (p=0.019).
The Impact of 11 Sessions of 4v4+1+Target Training Can Enhance Pass Accuracy Short-Passing Accuracy in Adolescent Football Players Hanief, Yulingga Nanda; Setiawan, Yoga Ridho Agus
Journal of Sport Science and Fitness Vol. 10 No. 1 (2024): Journal of Sport Science and Fitness
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jssf.v10i1.8549

Abstract

Short-passing accuracy is one of the keys to converting opportunities into goals, but mastering short-passing accuracy is still a significant problem for adolescent football players. This study aims to determine the impact of small-sided games (SSG) training with 4v4 + 1 + target format on improving short-passing accuracy in adolescent football players. This study is a quantitative descriptive study with a pre-experimental approach and uses a one-group pretest-posttest. The participants in this study were 12 adolescent athletes aged 14-16 years (15.2 ± 1.51) at Surya Muda Football Academy, Blitar City. The short-passing accuracy test was used to determine short-passing accuracy. The data that has been obtained was analyzed using a t-test with the help of SPSS. The results showed that 4v4+1+target training for 11 meetings could improve short-passing accuracy (Sig. 0.001 <0.05). In conclusion, 4v4+1+target SSG training can improve short-passing accuracy in adolescent football players and athletes. Exploration of other SSG formats needs to be investigated for their impact on football playing skills and improving physical and psychological conditions.
Analysis of Pencak Silat Techniques For The Winner of The Men's 70-75 Kg Competition Category at The 2023 Sea Games Wildan; Hadi, Hadi; Yudhistira, Dewangga
Journal of Sport Science and Fitness Vol. 10 No. 1 (2024): Journal of Sport Science and Fitness
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jssf.v10i1.14736

Abstract

Pencak silat is now developing into a competitive sport that is recognized worldwide. The need to analyze pencak silat techniques, this study aims to analyze the pencak silat techniques used by the winners of the men's 70-75 kg class competition category in the 2023 SEA Games. The research method used in this study is quantitative descriptive, by making observations to find out the techniques of kicks, punches, and slams through the sea games competition in the competition category as the winner of a body weight of 70-75 kg. The participant in this study was the winner of the 70-75 kg class F competition category, namely Iqbal Chandra. Based on the results of the above analysis, it can be concluded that the winner of the 70-75 kg Sea Games class F competition category Iqbal Chandra in the preliminary round is dominant using techniques namely 32% punches and 21% catches, in the semi-final round Iqbal Chandra is dominant using 28% punch techniques, 17% T kicks, and 17% falls with a catch process, and in the final round Iqbal Chandra is dominant using 22% sickle kick techniques,  front kicks/A 17%, and falls with a catch process 17%.
The Influence of Coach Leadership Style on Athlete's Training Motivation in Extracurricular Activities Ahmad Rohimin; Gustiana Mega Anggita
Journal of Sport Science and Fitness Vol. 10 No. 1 (2024): Journal of Sport Science and Fitness
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jssf.v10i1.15460

Abstract

The coach's leadership style has an important role in increasing the enthusiasm and motivation of athletes to follow the training program. Various factors can influence training motivation, one of which is the leadership style approach the coach applies during training. This study aims to determine the dominant leadership style used by the coach, the level of training motivation, and the influence of the coach's leadership style on athlete training motivation at SMANTIR ATHLETIC CLUB. The type and method used in this study is quantitative research. The sample in this study amounted to 10 people using a total sampling technique. Data collection in this study was done by surveying using questionnaires, and data analysis techniques used were simple regression analysis. The results of this study indicate that first, the dominant leadership style applied by the coach is autocratic, with a percentage of 76%. Second, the level of training motivation of SMANTIR ATLETIK CLUB athletes varies quite a lot. Most athletes have a moderate level of motivation with a percentage of 40%, very high 10%, high 20%, low 20%, and deficient 10%. Third, the coach's leadership style affects training motivation with a sig value of 0.03 and a coefficient of determination of 44.5%. The conclusion is that the dominant leadership style applied by the coach is autocratic, the level of training motivation of the majority of athletes is in the moderate category, and the coach's leadership style influences the training motivation of athletes at SMANTIR ATHLETIC CLUB.
The Role Of Self-Confidence In Achieving Peak Performance : A Descriptive Quantitative Study Of Youth Basketball Athletes In Sukabumi Mayangsari, Salamah; Boyke Mulyana, Raden; Nurmansyah Awwaludin, Patriana; Mulyana, Mulyana
Journal of Sport Science and Fitness Vol. 10 No. 1 (2024): Journal of Sport Science and Fitness
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jssf.v10i1.15495

Abstract

This research seeks to examine the impact of self-confidence on the achievement of peak performance in youth basketball athletes. In addition to physical, technical, and tactical aspects, self-confidence is a crucial psychological factor that supports athletic success. It helps athletes manage competition pressure and boosts their readiness to perform at their best. The study employs a descriptive quantitative approach with a correlational design, involving 33 youth basketball athletes from Sukabumi City as participants. The instruments used include the Sports State Confidence Inventory (SSCI) to assess self-confidence and a peak performance questionnaire created by Garfield and Bennet. Data analysis was conducted using the Statistical Program for Social Sciences (SPSS) version 25, with results showing a significant positive correlation between self-confidence and peak performance, yielding a correlation value of 0.759 and a significance level of 0.000. These findings suggest that higher levels of self-confidence increase the likelihood of athletes reaching peak performance. This study aims to offer deeper insights into the factors that affect athletic achievement, particularly self-confidence, and contribute to future youth basketball athletes' development
The Influence of Taekwondo Movement Activities on The Cognitive Function Of Early Childhood At The Fundamental Stage Febriani, Nawang Wulan; Nurjaya, Dede Rohmat; Kusumah, Widi; Mulyana
Journal of Sport Science and Fitness Vol. 10 No. 1 (2024): Journal of Sport Science and Fitness
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jssf.v10i1.15565

Abstract

Children's cognitive development is a crucial part of their growth process, particularly in the areas of comprehension and memory. However, many children struggle to improve this ability. Exercise activities such as taekwondo are thought to be able to enhance cognitive development, although there have been few studies specifically looking at their benefits for Indonesian children. The purpose of this study is to evaluate the effects of taekwondo-related activities on cognitive functions, particularly concentration, in children aged 6 to 9 years in the elementary stage. This study uses an experimental approach with 20 children from Sukabumi Academy Taekwondo Dojang, consisting of 10 children and 10 adults. Taekwondo exercises are performed three times a month for 21 minutes at moderate intensity (between 50-80%). The Stroop Colour Word Test (SCWT) is an instrument for assessing a person's ability to understand words, colours and word combinations. The paired T-test is used to analyse the differences between the results before and after the test. The results show a significant increase in the following three variables: Word-Colour Combination (t(19) = 10.491, p<0.001), Word-Colour Recognition (t(19) = 7.973, p<0.001) and Colour-Colour Recognition (t(19) = 8.063, p<0.001). The average score after the test was better than before the test, indicating an increase in concentration after the Taekwondo intervention. Taekwondo exercises significantly improve cognitive functions, especially concentration, in children aged 6 to 9 years. This study highlights the importance of incorporating sports such as taekwondo into early childhood education and development programmes.
The Effect of Administration Ginger and Lemongrass Drink on Interleukine 6 Football Player After Exercise adnan, Miftahul; Afifah, Diana Nur; Anjani, Gemala; Susanto, Hardhono; Noer, Etika Ratna; Widodo, Sumardi
Journal of Sport Science and Fitness Vol. 10 No. 2 (2024): Journal of Sport Science and Fitness
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jssf.v10i2.15662

Abstract

Physical exercise can increase the production of free radicals. Free radical can trigger oxidative stress and inflammation. Ginger and lemongrass has bioactive compound that function as antioxidant and antiinflammatory. This study aim to determine the effecs of giving ginger and lemongras drink on IL6 level in football player. Quasi experimental study with pre and post control group design. The subject were 24 football player divided 2 namely control and intervention group. The intervention group given a ginger and lemongrass drink. The control group was only given brown sugar drink. The intervention are given after exercise for 28 days. Blood samples were collected and tested after exercise. Interleukine 6 were measured using the ELISA Method. Our result showed there was differences in interleukine 6 after giving ginger and lemongrass drink (p=0.004). The delta of interleukine 6 level after intervention was 3.24 pg/ml. Conclusion this research are there was a decrease in interleukine 6 level after giving ginger and lemongrass drink for 28 days to football players after exercise.
Analysis of Parental Involvement in Supporting The Effectiveness of Children's Swimming Training JEJE, JENNYCA; Hadi, Hadi; Yudhistira, Dewangga
Journal of Sport Science and Fitness Vol. 10 No. 1 (2024): Journal of Sport Science and Fitness
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jssf.v10i1.16351

Abstract

The aim of this study was to assess the significance of the involvement of parents, students and coaches in increasing the effectiveness of children's swimming training. The method used in this research is a qualitative descriptive method. The population used is the parents of the Gaussian Kamil School Swimming Club. Data collection in this study used interview and documentation techniques. The results of this study are in the form of a statement from a parent who definitely wants their child to be brave and improve their skills in swimming, and a child who enjoys practicing swimming with the role of their parents by providing encouragement while practicing. Based on the results of the interview study, it can be found that children will be confident and practice seriously when they are given encouragement such as motivational encouragement and moral support. Many parents are also proud when they see their child's skills improving from the beginning when their child was still learning to swim until now they can master all swimming styles in a few years. It can be concluded that the role of parents greatly supports the effectiveness of children's swimming, especially in supporting the development of children's skills and mentality, especially in the scope of children's swimming practice with new people.
Correlation Of Nutritional Status, Physical Activity, Protein, and Magnesium Intake with Muscle Endurance Among College Students Purwaningtyas, Desiani Rizki; Herawati, Lala Diana; Fitriani, Anna
Journal of Sport Science and Fitness Vol. 10 No. 1 (2024): Journal of Sport Science and Fitness
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jssf.v10i1.16830

Abstract

Muscular endurance is included in the components of fitness related to health. Good muscular endurance is important for college students to reduce muscle fatigue so they can do activities including studying longer. The purpose of this study was to analyze the correlation between nutritional status, protein intake, magnesium, and physical activity with muscle endurance. This study is a quantitative study using a cross-sectional design. The sampling technique used was purposive sampling concerning predetermined criteria and a sample of 99 students in Jakarta was obtained. The instruments in this study used a weighed food record, a physical activity recall form, and a push-up and wall squat muscle endurance test form. The Pearson and Spearman correlation tests analyzed the relationship between independent and dependent variables. Most of the respondents had poor and very poor muscle endurance both based on push-ups (96%) and wall squat tests (79,8%). The majority of respondents had good nutritional status (57.6%), insufficient protein intake (56.6%), insufficient magnesium intake (98%), and light physical activity level (93.9%). Nutritional status, protein intake, magnesium, and physical activity were not significantly correlated with muscle endurance in college students (p-value> 0.05).
Kinematic Analysis of Hitting: Launch Angle and Swing Velocity Differences in Elite vs. Amateur Softball Swing Nur Rika Hasanah; Rusdiana, Agus; Hidayat, Iwa Ikhwan; Imanudin, Iman; Hardwis, Syam; Haryono, Tono
Journal of Sport Science and Fitness Vol. 10 No. 1 (2024): Journal of Sport Science and Fitness
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jssf.v10i1.17951

Abstract

Hitting is a basic technique that must be mastered in softball. Efficient hitting requires good coordination between the lower limbs, core, and arms. This study aims to analyze the launch angle and exit velocity characteristics of the hitting technique between elite and amateur softball athletes. This study used a quantitative descriptive method. The population consisted of 13 athletes, including 5 elite athletes and 8 amateur athletes, who were selected using purposive sampling. Data collection used documentation techniques by recording the batting movements of the samples which then the video results will be analyzed using Kinovea and SkillSpector software, and the data was analyzed using SPSS version 26.0 with Independent Sample T-Test. The results showed significant differences in launch angle (p=0.025), exit velocity (p=0.004), and swing speed (p=0.015) between elite and amateur athletes. However, there were no differences in elbow angle (p=0.904) and elbow velocity (p=0.123). This study concludes that there are significant differences in batting technique characteristics between elite and amateur softball athletes, with elite athletes showing better performance in launch angle, exit velocity, and swing speed. However, both samples were similar in elbow and elbow angle velocity.

Page 1 of 4 | Total Record : 34

 1   2   3   4 

Filter by Year

2024 2025


Reset
Filter By Issues
All Issue Vol. 11 No. 2 (2025): JSSF: Journal of Sport Science and Fitness Vol. 11 No. 1 (2025): Journal of Sport Science and Fitness Vol. 10 No. 2 (2024): Journal of Sport Science and Fitness Vol. 10 No. 1 (2024): Journal of Sport Science and Fitness