Article
Neurosciences
Meta N. Eek, Jesper Augustsson, Roland Zugner, Roy Tranberg
Summary: This study aimed to investigate the feasibility and usefulness of measuring single-leg vertical jumping in young adults with cerebral palsy (CP). The results showed that this test was able to accurately measure jump height and power generation in individuals with CP, providing additional information about motor function.
Article
Engineering, Biomedical
Souhail Bchini, Nadhir Hammami, Nejmeddine Ouerghi, Dalenda Zalleg, Anissa Bouassida
Summary: The relationship between lower limbs muscle volume and peak vertical jump power in children for both sexes was investigated. The results showed significant correlations between muscle volume and peak vertical jump power for both boys and girls. Therefore, lower limb muscle volume can be considered as an estimation tool for assessing leg power in children.
ISOKINETICS AND EXERCISE SCIENCE
(2023)
Article
Health Care Sciences & Services
Ashwin Wayne Isaacs, Kathryn Helen Myburgh, Filippo Macaluso
Summary: An investigation was conducted to examine the histological changes in skeletal muscle fibres and jump performance indicators after 8 weeks of plyometric squat jump training. The study found that there was a significant improvement in jump performance indicators, but no morphological changes in skeletal muscle were observed. The improvements may be attributed to sarcomere ultrastructural adaptation rather than myosin heavy chain or cross-sectional area.
Article
Health Care Sciences & Services
Carlos A. F. Santos, Gislene R. Amirato, Alessandro F. Jacinto, Ana V. Pedrosa, Adriana Caldo-Silva, Antonio R. Sampaio, Nuno Pimenta, Juliana M. B. Santos, Alberto Pochini, Andre L. L. Bachi
Summary: This study aimed to assess the safety and usefulness of vertical jump tests in evaluating physical performance in older women. The results showed that vertical jump tests are safe and accurate, making them useful for monitoring age-related muscle performance loss in robust older women.
Article
Multidisciplinary Sciences
Amilton Vieira, Gabriela L. Ribeiro, Victor Macedo, Valdinar de Araujo Rocha Junior, Roberto de Souza Baptista, Carlos Goncalves, Rafael Cunha, James Tufano
Summary: This study investigated the concurrent validity and test-retest reliability of the Jumpo 2 and MyJump 2 apps for estimating jump height, force, velocity, and power. The results showed that both apps provided a reliable estimate of jump height and the mean values of force, velocity, and power. However, the validity of velocity and power estimates from these apps was poor.
Article
Orthopedics
Yu Nakahira, Shuji Taketomi, Kohei Kawaguchi, Yuri Mizutani, Masato Hasegawa, Chie Ito, Emiko Uchiyama, Yosuke Ikegami, Sayaka Fujiwara, Ko Yamamoto, Yoshihiko Nakamura, Sakae Tanaka, Toru Ogata
Summary: This study investigated the kinematic differences between the dominant and nondominant legs of female soccer players during a single-leg drop vertical jump. The findings suggest that there is a difference in knee valgus angle between the two legs.
AMERICAN JOURNAL OF SPORTS MEDICINE
(2022)
Article
Sport Sciences
Robert Miller, Thomas G. G. Balshaw, Garry J. J. Massey, Sumiaki Maeo, Marcel B. B. Lanza, Bill Haug, Michael Johnston, Sam J. J. Allen, Jonathan P. P. Folland
Summary: This study compared lower body muscle volumes and vertical jumping power between elite and subelite female sprinters. The results showed that elite sprinters had higher muscle volumes and power. The relative volume of the hip flexors was particularly important for sprint performance.
MEDICINE & SCIENCE IN SPORTS & EXERCISE
(2022)
Article
Medicine, General & Internal
Mehmet Gulu, Cengiz Akalan
Summary: The study aimed to develop a regression equation specific to 12-14 year old soccer players to estimate peak power using a large sample size. The regression model used body weight and vertical jump values to predict peak power accurately. The actual peak power values obtained in the study were consistent with the estimated values using the new model, suggesting high predictability for peak power in young football players.
Article
Sport Sciences
Bruna Daniella de Vasconcelos Costa, Maria Elisa Caputo Ferreira, Petrus Gantois, Witalo Kassiano, Santiago T. Paes, Dalton de Lima-Junior, Edilson S. Cyrino, Leonardo de Sousa Fortes
Summary: This study aimed to analyze the acute effects of different resistance training systems on neuromuscular performance in trained adults. The results indicate that the drop-set and decrescent pyramid conditions negatively affect lower limb neuromuscular performance, while only the drop-set condition negatively affects upper limb performance.
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
(2021)
Article
Sport Sciences
Matthew Zukowski, Walter Herzog, Matthew J. Jordan
Summary: This study examined the intraday reliability of two novel unilateral loaded jump protocols designed for long track speed skaters and correlated them with performance in speed skating. The results showed that unilateral loaded jump tests are reliable in speed skating athletes and can be used to diagnose and monitor lower-limb maximal muscle power capacity.
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
(2023)
Article
Endocrinology & Metabolism
Roland Schweizer, David D. Martin, Gerhard Binder
Summary: This study examined the changes in jumping strength in short children born small for gestational age (SGA) during growth hormone (GH) treatment. The results showed that GH treatment significantly increased jumping strength in these children.
FRONTIERS IN ENDOCRINOLOGY
(2023)
Article
Physiology
Dawid Kozlenia, Jaroslaw Domaradzki
Summary: This study aimed to establish if there are sex differences in post-activation performance enhancement (PAPE) effect on jump height. The results showed that there are differences in performance changes between males and females after isometric training, with greater changes observed in males. Although the protocol had positive short-term effects on females, its usefulness is limited.
FRONTIERS IN PHYSIOLOGY
(2023)
Article
Education & Educational Research
Matthew T. Mahar, Gregory J. Welk, Kathleen F. Janz, Kelly Laurson, Weimo Zhu, Fatima Baptista
Summary: This study aimed to develop and validate a generalizable equation for accurately estimating vertical jump (VJ) power in 10- to 18-year-olds based on VJ height, body mass, age, and sex. The results showed that estimates of VJ power based on VJ height and body mass were accurate, while age and sex did not significantly contribute to the model. The newly developed equation proved to be more accurate than previously published equations.
MEASUREMENT IN PHYSICAL EDUCATION AND EXERCISE SCIENCE
(2022)
Article
Sport Sciences
Mitchell D. Lewis, Warrren B. Young, Luke Knapstein, Andrew Lavender, Scott W. Talpey
Summary: This study examined the reliability and discriminative ability of tensiomyography and countermovement jump variables in assessing muscle properties in elite endurance and sprint track cyclists. The findings indicated that tensiomyography measurements were less reliable and had limited ability to differentiate between endurance and sprint track cyclists, while countermovement jump variables showed better discriminative ability.
Article
Geriatrics & Gerontology
Mary E. Winger, Paolo Caserotti, Rachel E. Ward, Robert M. Boudreau, Lars G. Hvid, Jane A. Cauley, Sara R. Piva, Tamara B. Harris, Nancy W. Glynn, Elsa S. Strotmeyer
Summary: This study found that jump power/kg and grip strength/kg may be more strongly related to faster gait speed compared to lower-extremity power/strength. Different muscle function measures showed distinct associations with physical performance outcomes, which are important for disability and mortality risk assessments.
EXPERIMENTAL GERONTOLOGY
(2021)
Article
Rehabilitation
Mehrez Hammami, Nicola Luigi Bragazzi, Souhail Hermassi, Nawel Gaamouri, Ridha Aouadi, Roy J. Shephard, Mohamed Souhaiel Chelly
BMC SPORTS SCIENCE MEDICINE AND REHABILITATION
(2020)
Article
Physiology
Mehrez Hammami, Nawel Gaamouri, Katsuhiko Suzuki, Roy J. Shephard, Mohamed Souhaiel Chelly
FRONTIERS IN PHYSIOLOGY
(2020)
Article
Physiology
Yosser Cherni, Mehrez Hammami, Mohamed Chedly Jelid, Ghaith Aloui, Katsuhiko Suzuki, Roy J. Shephard, Mohamed Souhaiel Chelly
Summary: The purpose of this study was to investigate the effects of an 8-week in-season plyometric training program on the physical performance and neuromuscular adaptations of female basketball players. The results showed that the experimental group improved in change of direction performance, increased thigh cross sectional area, and showed significant improvements in EMG parameters for the vastus medialis muscle during Squat Jumping. However, there were no statistically significant improvements in sprinting times and jumping performances.
FRONTIERS IN PHYSIOLOGY
(2021)
Article
Physiology
Ghaith Aloui, Souhail Hermassi, Mehrez Hammami, Yosser Cherni, Nawel Gaamouri, Roy J. Shephard, Roland van den Tillaar, Mohamed Souhaiel Chelly
FRONTIERS IN PHYSIOLOGY
(2020)
Article
Multidisciplinary Sciences
Souhail Hermassi, Mohamed Souhaiel Chelly, Lars Bojsen Michalsik, Nilihan E. M. Sanal, Lawrence D. Hayes, Cristina Cadenas-Sanchez
Summary: This study found a negative correlation between BMI and science/mathematics GPA, while a positive correlation was observed between fitness tests and academic performance. Therefore, engaging students in physical activity may enhance academic performance.
Article
Chemistry, Multidisciplinary
Ghaith Aloui, Souhail Hermassi, Lawrence D. Hayes, Roy J. Shephard, Mohamed Souhaiel Chelly, Rene Schwesig
Summary: The study found that incorporating biweekly upper limb loaded plyometric training using elastic bands into the in-season regimen of handball players significantly improved muscle power and throwing velocity. Therefore, such training method should be adopted as part of handball training program.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Multidisciplinary
Ghaith Aloui, Souhail Hermassi, Lawrence D. Hayes, Nilihan E. M. Sanal Hayes, El Ghali Bouhafs, Mohamed Souhaiel Chelly, Rene Schwesig
Summary: The study found that adding bi-weekly plyometric and short sprint with change-of-direction training into standard training significantly improves young soccer players' jumping, sprinting, change-of-direction ability, repeated sprint ability, and static balance.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Multidisciplinary
Ghaith Aloui, Hermassi Souhail, Lawrence D. Hayes, El Ghali Bouhafs, Mohamed Souhaiel Chelly, Rene Schwesig
Summary: The study found that including bi-weekly loaded plyometric and short sprints training in standard training can improve the physical fitness of young soccer players, particularly enhancing their ability to repeatedly change direction.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Multidisciplinary
Ghaith Aloui, Souhail Hermassi, Lawrence D. Hayes, El Ghali Bouhafs, Mohamed Souhaiel Chelly, Rene Schwesig
Summary: The study found that incorporating loaded plyometric with short sprints and change-of-direction training can enhance jump performance, sprinting, agility, and balance in soccer players, ultimately improving their athleticism.
APPLIED SCIENCES-BASEL
(2021)
Article
Hospitality, Leisure, Sport & Tourism
Mehrez Hammami, Nawel Gaamouri, Rodrigo Ramirez-Campillo, Gaith Aloui, Roy J. Shephard, Lee Hill, Beat Knechtle, Mohamed Souhaiel Chelly
Summary: This study found that 7 weeks of pre-season supplemental jump and sprint exercise training on sand significantly improved sprinting, agility, jumping, repeated sprinting, and balance in male handball players compared to regular handball training.
INTERNATIONAL JOURNAL OF SPORTS SCIENCE & COACHING
(2022)
Article
Environmental Sciences
Ghaith Aloui, Souhail Hermassi, Aymen Khemiri, Thomas Bartels, Lawrence D. Hayes, El Ghali Bouhafs, Mohamed Souhaiel Chelly, Rene Schwesig
Summary: This study examined the effects of twice-weekly combined plyometric and sprint with change-of-direction training on young male soccer players. The results showed that this training regimen led to improvements in jump, sprint, change-of-direction ability, repeated change of direction, and static balance performance. Adding this type of training twice a week to standard training regimes can enhance the anaerobic performance of U15 male soccer players.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2021)
Article
Hospitality, Leisure, Sport & Tourism
Mehrez Hammami, Nawel Gaamouri, Yosser Cherni, Sabri Gaied, Mohamed Souhaiel Chelly, Lee Hill, Pantelis Theodoros Nikolaidis, Beat Knechtle
Summary: The research demonstrated that 10-week complex strength training with elastic bands can enhance strength, sprint, jump, and repeated sprint performance in young female handball players, but it does not significantly affect static and dynamic balance performance.
INTERNATIONAL JOURNAL OF SPORTS SCIENCE & COACHING
(2022)
Article
Hospitality, Leisure, Sport & Tourism
Mehrez Hammami, Nawel Gaamouri, Yosser Cherni, Mohamed Souhaiel Chelly, Lee Hill, Beat Knechtle
Summary: The study showed that 10 weeks of contrast strength training with elastic band (CSTEB) can improve maximal strength, power, endurance, sprint, change of direction, and jump performance in young female handball players. This training program also enhances a range of physical performance measures, but has no significant effects on balance performance.
INTERNATIONAL JOURNAL OF SPORTS SCIENCE & COACHING
(2022)
Article
Hospitality, Leisure, Sport & Tourism
Nawel Gaamouri, Mehrez Hammami, Roy J. Shephard, Mohamed Souhaiel Chelly, Beat Knechtle, Katsuhiko Suzuki, Sabri Gaied
Summary: This study investigated the effects of an 8-week combined plyometric exercise and high intensity running training on the performance fitness of male U17 handball players. The results showed significant improvements in sprint performance, change of direction, vertical jumping, horizontal jumping, repeated sprint ability, and shuttle run in the experimental group compared to the control group.
INTERNATIONAL JOURNAL OF SPORTS SCIENCE & COACHING
(2023)
Article
Pediatrics
Ghazi Racil, Mohamed-Souhaiel Chelly, Jeremy Coquart, Johnny Padulo, Dragos Florin Teodor, Luca Russo
Summary: This study investigated the effects of short-term and long-term high-intensity interval training on cardiovascular components, blood lipids, and 6-min walking test performance in obese young boys. The results suggest that long-term training is beneficial for body composition and cardiovascular health in obese boys, but short-term training may be more effective in reducing perceived exertion.