Effects of HIIT Model Progressive Sprint-Release and TUJA Shuttle Run in increasing aerobic capacity, anaerobic capacity, and speed: a comparative study in female volleyball athletes by Tutur Jatmiko, Rizky Muhammad Sidik, Nining Widyah Kusnanik, Tri Setyo Utami, Muhammad Labib Siena Ar Rasyid, Wahyu Renandi Aji

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Muscle Activity and Kinematics During Three Hamstring Strengthening Exercises Compared to Sprinting: A Cross-Sectional Study. by Adelso Jorge, Eric Lichtenstein, Oliver Faude, Ralf Roth

“… # Purpose This study compared three hip-dominant hamstring exercises: the rocker, perpetuum mobile fast and slow (PMfast and PMslow) and the Nordic Hamstring exercise (NHE) on their potential to simulate sprint-like activity and kinematics. # Methods Muscle activity of the posterior kinetic chain (biceps femoris, semitendinosus, gluteus maximus, and medial gastrocnemius) was measured with surface electromyography (sEMG) during the exercises and treadmill running at 75% of the individual maximal sprint velocity in male athletes. sEMG data were normalized to maximal sprinting. 3D-motion capture was employed to assess hip and knee angles…”
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Lower Limb Exercise-Based Injury Prevention Programs Are Effective in Improving Sprint Speed, Jumping, Agility and Balance: an Umbrella Review by Loïc Bel, Nicolas Mathieu, Vincent Ducrest, Mario Bizzini

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Effect of increased protein intake before pre-event on muscle fatigue development and recovery in female athletes by Taghread Ahmed Elsayed Ahmed, Heba Ali Ibrahim Seleem, Ghada Mohamed Youssef Elsayed, Marwa Ahmed Fadl Kholif, Rania Mohammed Abduljawad, Nour Taha Ebrahem Housen, Naglaa Mohamed Roby Sofy, Hager Abdel Hady

“…Data were collected using the Running-Based Anaerobic Sprint Test (RAST) to assess fatigue index (FI) and peak power (PP), and the Anaerobic Power Step Test to assess anaerobic capacity (AC). …”
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Effects of Coach’s Verbal Encouragement During Small-Sided Volleyball Games on Specific Physical Fitness and Technical-Tactical Behavior of Youth Athletes by Taufiq Hidayat, Irma Febriyanti, Advendi Kristiyandaru, Suroto, Hari Wisnu, Ahmet Kurtoğlu, Amayra Tannoubi, Joseph Lobo, Baglan Yermakhanov, Jarosław Muracki, Edi Setiawan

“…Purpose: This study aims to investigate the impact of coach’s verbal encouragement small-sided volleyball games (CVESSVG) towards specific physical performance, and technical-tactical behavior among youth athletes. Methods: There were forty youth male volleyball athletes involved in this study, which were allocated in CVESSVG (n = 20), and small-sided game-non coach’s verbal encouragement (SSG-non CVE) (n = 20). …”
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Comparing the Effects of Integrative Neuromuscular Training and Traditional Physical Fitness Training on Physical Performance Outcomes in Young Athletes: A Systematic Review and Me... by Ke-wen Wan, Zi-han Dai, Po-san Wong, Robin Sze-tak Ho, Bjorn T. Tam

“…Abstract Background Enhancing youth's physical fitness levels during childhood and adolescence through prior training programs can significantly optimize their athletic performance. The integrative neuromuscular training (INT) model is designed to improve neuromuscular function and prevent athletic injuries, and is superior to the traditional physical training method. …”
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Acute effect of technique modification training on 180° change of direction performance and kinematics in adolescent male soccer players by Hayato Nakamura, Daichi Yamashita, Daichi Nishiumi, Naoto Nakaichi, Norikazu Hirose

“…Adolescent players often display immature COD maneuvers, suggesting that COD technique modification training may be a more effective approach for adolescent athletes. This study investigated the acute effects of COD modification training on COD performance and kinematics in male adolescent soccer players.MethodsTwenty-nine male junior high school soccer players participated in this study and were divided into two groups: 16 players underwent 15-min COD technique modification training (COD group), while 13 players engaged in 15-min linear sprint training. …”
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Differences in Physical and Psychological Parameters in Sub-Elite, Male, Youth Soccer Players with Jumper's Knee Following Physical Therapy Compared to Healthy Controls: A Longitud... by Marc Niering, Thomas Muehlbauer

“…# Purpose/Background Many adolescent athletes suffer from jumper's knee (JK) over a long period of time and return to sports before symptoms are fully resolved. …”
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