@article{SchomoellerSchugardtKotschetal.2021,
  author    = {Schom{\"o}ller, Anne and Schugardt, Monique and Kotsch, Peggy and Mayer, Frank},
  title     = {The effect of body composition on cycling power during an incremental test in young athletes},
  series = {Journal of strength and conditioning research : the research journal of the NSCA / National Strength \& Conditioning Association},
  volume    = {35},
  journal   = {Journal of strength and conditioning research : the research journal of the NSCA / National Strength \& Conditioning Association},
  number    = {11},
  publisher = {Lippincott Williams \& Wilkins},
  address   = {Philadelphia},
  issn      = {1064-8011},
  doi       = {10.1519/JSC.0000000000003271},
  pages     = {3225 -- 3231},
  year      = {2021},
  abstract  = {Schomoller, A, Schugardt, M, Kotsch, P, and Mayer, F. The effect of body composition on cycling power during an incremental test in young athletes. J Strength Cond Res 35(11): 3225-3231, 2021-As body composition (BC) is a modifiable factor influencing sports performance, it is of interest for athletes and coaches to optimize BC to fulfill the specific physical demands of one sport discipline. The purpose of this study is to test the impact of body fat (BF) and fat-free mass (FFM) on aerobic performance in young athletes. Body composition parameters were evaluated among gender and age groups of young athletes undergoing their mandatory health examination. The maximal power (in Watts per kilogram body mass) of a stepwise incremental ergometer test was compared between 6 BC types: high BF, high FFM, high BF and high FFM, normal BC values, low BF, and low FFM. With increasing age (11-13 vs. 14-16 years) BF decreased and FFM increased in both genders. Both BC parameters, as well as body mass, correlated moderately with performance output (r = 0.36-0.6). Subjects with high BF or high FFM or both had significantly lower ergometer test results compared with those with low BF and FFM in all age and gender groups (p < 0.05). The finding that high levels of BF and FFM are detrimental for cycle power output is important to consider in disciplines that demand high levels of aerobic and anaerobic performance.},
  language  = {en}
}
@article{NiehuesGerlachSallen2021,
  author    = {Niehues, Maike and Gerlach, Erin and Sallen, Jeffrey},
  title     = {Measuring dual career motivation among German student-athletes using the Student Athletes' Motivation Toward Sports and Academics Questionnaire},
  series = {German journal of exercise and sport research : Sportwissenschaft / Bundesinstitut f{\"u}r Sportwissenschaft, Deutscher Olympischer Sportbund, Deutsche Vereinigung f{\"u}r Sportwissenschaft},
  volume    = {51},
  journal   = {German journal of exercise and sport research : Sportwissenschaft / Bundesinstitut f{\"u}r Sportwissenschaft, Deutscher Olympischer Sportbund, Deutsche Vereinigung f{\"u}r Sportwissenschaft},
  number    = {3},
  publisher = {Springer},
  address   = {Berlin ; Heidelberg},
  issn      = {2509-3142},
  doi       = {10.1007/s12662-021-00723-9},
  pages     = {378 -- 383},
  year      = {2021},
  abstract  = {With the 2012 EU guidelines on dual careers (DC), DC research gained increasing awareness in Europe focussing particularly on student-athletes' motivation. The Student Athletes' Motivation toward Sports and Academics Questionnaire (SAMSAQ), arguably the most prominent instrument in this research area, has been used in various cross-cultural studies assessing DC motivation. The present investigation contributes to the cross-cultural discourse aiming to (1) adapt the SAMSAQ for the German context and adolescent secondary school student-athletes, and (2) evaluate the German pre-version. A sample of 208 student-athletes (52.4\% females, mean age = 17.4 years, 49.5\% at squad level) at three German Elite Sport Schools participated in the study. The investigation was split into two parts. First, the SAMSAQ was adapted to the German context and tested. In the second part, the first pre-version was revised. A series of exploratory factor analyses were applied to verify the factor structure of both German SAMSAQ pre-versions. Eight different factor models based on item removal were compared. Neither model demonstrated good results for the replication of previous findings or a meaningful solution in terms of content. Reasons for the deviations between the original and target SAMSAQ factor structures can be found in the different target groups and the culturally different approaches to career assistant programmes as well as in the theoretical background of the instrument. Since neither model was identified as acceptable, the findings indicate that a new instrument needs to be developed for assessing student-athletes' DC motivation along their pathways in different cross-cultural contexts.},
  language  = {en}
}
@masterthesis{Noa2021,
  type      = {Bachelor Thesis},
  author    = {Noa, Laura Charleen},
  title     = {Wassergew{\"o}hnung zu Hause: Schwimmenlernen beginnt in der Badewanne},
  doi       = {10.25932/publishup-56173},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-561737},
  school      = {Universit{\"a}t Potsdam},
  pages     = {29},
  year      = {2021},
  abstract  = {Das Hauptziel der Bachelorarbeit stellt eine theoretische Auseinandersetzung mit dem Thema Wassergew{\"o}hnung im eigenen Zuhause dar. Ausgehend von dieser Ausf{\"u}hrung erstellt die Autorin als Theorie-Praxis-Transfer eine Handreichung f{\"u}r Erziehungsberechtigte mit den relevantesten Informationen ihrer Qualifikationsarbeit in komprimierter Form. Damit die Erziehungsberechtigten ihren Kindern proaktiv zur Seite stehen k{\"o}nnen, soll die Handreichung adressat*innengerecht und pr{\"a}gnant sein, ohne den Erziehungsberechtigten essenzielle Details vorzuenthalten. Die Erziehungsberechtigten erhalten eine Handreichung, welche die bedeutendsten Informationen rund um die Wassergew{\"o}hnung zu Hause enth{\"a}lt. Sie erfahren unter anderem etwas {\"u}ber die h{\"o}chstm{\"o}gliche Aufenthaltsdauer der Kinder im Wasser und die optimale Temperatur des Badewassers. Außerdem erhalten sie wichtige Informationen rund um die K{\"o}rperreaktionen, welche durch oder im Wasser auftreten k{\"o}nnen. Das sind bspw. der Lidschlussreflex oder der K{\"a}ltereiz. Sie werden {\"u}ber essenzielle Sicherheitsaspekte informiert und erhalten eine kompakte Darstellung {\"u}ber Verhaltensregeln, den sogenannten do's and dont's. Die {\"U}bungen/Spiele werden nach den aktuellen Vorgaben der DGUV (2019) f{\"u}r die Inhalte der Wassergew{\"o}hnung ausgew{\"a}hlt und nach den heimischen Voraussetzungen strukturiert sein. In der Handreichung werden zudem auch {\"U}bungen/Spiele zu finden sein, bei welchen keine Eigenschaften oder Wirkungen des Wassers kennengelernt werden. Atem- und Tauch{\"u}bungen werden in der Handreichung ebenso beschrieben. Die Angst vor dem Wasser stellt, sobald sie sich manifestiert, bekanntlich das gr{\"o}ßte Hindernis der Nichtschwimmer*innen dar (DGUV, 2019). Darum m{\"o}chte die Autorin mit der Aufkl{\"a}rung {\"u}ber diese Angst in ihrer Qualifikationsarbeit und der Handreichung bewirken, dass die Erziehungsberechtigten in der Lage sind, den Kindern das Angstgef{\"u}hl gegen{\"u}ber dem Wasser zu nehmen oder ihre Angstfreiheit beizubehalten und um daran anschließend den Kindern Freude an der Bewegung im Wasser zu erm{\"o}glichen. „Je mehr Freude die Kinder im Kleinkindalter am Baden haben, je weniger Angst sie mit dem Medium verbinden, umso schneller erlernen sie sp{\"a}ter das Schwimmen" (DGUV, 2016, S. 6). Die theoretischen Grundlagen der Handreichungen stellen die zentralen Aspekte und Ziele der Wassergew{\"o}hnung dar. Diese werden der, im Rahmen Schule, bedeutsamen Publikation der Deutschen Gesetzlichen Unfallversicherung aus dem Jahr 2019 entnommen. Hierbei handelt es sich um die Wahrnehmung der spezifischen Voraussetzungen des Wassers sowie deren Ann{\"a}herung und Gew{\"o}hnung. Die Kinder erfahren die Eigenschaften Dichte, Druck und Temperatur des Elements und den Einfluss des Wassers auf den K{\"o}rper. Das sind Wasserwiderstand, Auftrieb und die Wasserkraft. So werden die {\"U}bungen, in denen die Kinder das Wasser kennenlernen, beziehungsweise zum ersten Mal intensiv in Ber{\"u}hrung mit diesem kommen, zu Beginn erw{\"a}hnt. Anschließend folgen {\"U}bungen, {\"u}berwiegend in Spielformen, bei denen die Freude geweckt werden soll. Als letzte Phase folgen {\"U}bungen, bei welchen der spezifische Umgang mit dem Wassers vonn{\"o}ten ist. Diese Struktur ist an den ersten drei Phasen nach Baumeisters (1984) Methodik zur Wassergew{\"o}hnung orientiert. So wird zudem das methodische Prinzip vom Einfachen zum Komplexen als theoretische Grundlage verwendet. Legahn (2007) beschreibt einige Lernmodelle, die je nach Alter und Entwicklungsstand bei der Wassergew{\"o}hnung angewendet werden k{\"o}nnen. In der Handreichung wird die Autorin auf diese zur{\"u}ckgreifen und passende Lerntechniken ausf{\"u}hren. Beispiele hierf{\"u}r sind unter anderem das Lernen am Modell (Nachahmung von Personen, Tieren oder Puppen) oder das Aktive Lernen (ein spielerischer Bewegungsaufbau verbessert die Fertigkeiten). Die ben{\"o}tigten Materialien werden in der Handreichung unter der {\"U}berschrift der {\"U}bungen/Spiele ausgef{\"u}hrt und dienen als erste Information. Neben der {\"U}berschrift werden die m{\"o}glichen Eigenschaften und Wirkungen des Wassers, welche in dieser spezifischen {\"U}bung kennengelernt werden, benannt. Das sind beispielsweise Druck und Auftrieb f{\"u}r Wasserdruck und Wasserauftrieb. Darunter wird die jeweilige {\"U}bung beschrieben. Als Visualisierung erstellt die Autorin selbstst{\"a}ndig gezeichnete Bilder. Unterhalb dieser Bilder befindet sich oft auch eine passende Spielvariante, um mit dieser {\"U}bung noch zus{\"a}tzlich Freude zu wecken. Ebenso werden auch mehrmals passende {\"U}bungsformen oder Tipps erw{\"a}hnt.},
  language  = {de}
}
@misc{PuschmannLinWippert2021,
  author    = {Puschmann, Anne-Katrin and Lin, I-Chiao and Wippert, Pia-Maria},
  title     = {Sustainability of a motor control exercise intervention},
  series = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  issn      = {1866-8364},
  doi       = {10.25932/publishup-54408},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-544083},
  pages     = {1 -- 8},
  year      = {2021},
  abstract  = {Development of chronic pain after a low back pain episode is associated with increased pain sensitivity, altered pain processing mechanisms and the influence of psychosocial factors. Although there is some evidence that multimodal therapy (such as behavioral or motor control therapy) may be an important therapeutic strategy, its long-term effect on pain reduction and psychosocial load is still unclear. Prospective longitudinal designs providing information about the extent of such possible long-term effects are missing. This study aims to investigate the long-term effects of a homebased uni- and multidisciplinary motor control exercise program on low back pain intensity, disability and psychosocial variables. 14 months after completion of a multicenter study comparing uni- and multidisciplinary exercise interventions, a sample of one study center (n = 154) was assessed once more. Participants filled in questionnaires regarding their low back pain symptoms (characteristic pain intensity and related disability), stress and vital exhaustion (short version of the Maastricht Vital Exhaustion Questionnaire), anxiety and depression experiences (the Hospital and Anxiety Depression Scale), and pain-related cognitions (the Fear Avoidance Beliefs Questionnaire). Repeated measures mixed ANCOVAs were calculated to determine the long-term effects of the interventions on characteristic pain intensity and disability as well as on the psychosocial variables. Fifty four percent of the sub-sample responded to the questionnaires (n = 84). Longitudinal analyses revealed a significant long-term effect of the exercise intervention on pain disability. The multidisciplinary group missed statistical significance yet showed a medium sized long-term effect. The groups did not differ in their changes of the psychosocial variables of interest. There was evidence of long-term effects of the interventions on pain-related disability, but there was no effect on the other variables of interest. This may be partially explained by participant's low comorbidities at baseline. Results are important regarding costless homebased alternatives for back pain patients and prevention tasks. Furthermore, this study closes the gap of missing long-term effect analysis in this field.},
  language  = {en}
}
@article{PuschmannLinWippert2021,
  author    = {Puschmann, Anne-Katrin and Lin, Chiao-I and Wippert, Pia-Maria},
  title     = {Sustainability of a motor control exercise intervention},
  series = {Frontiers in sports and active living},
  volume    = {3},
  journal   = {Frontiers in sports and active living},
  publisher = {Frontiers Media},
  address   = {Lausanne, Schweiz},
  issn      = {2624-9367},
  doi       = {10.3389/fspor.2021.659982},
  pages     = {1 -- 8},
  year      = {2021},
  abstract  = {Development of chronic pain after a low back pain episode is associated with increased pain sensitivity, altered pain processing mechanisms and the influence of psychosocial factors. Although there is some evidence that multimodal therapy (such as behavioral or motor control therapy) may be an important therapeutic strategy, its long-term effect on pain reduction and psychosocial load is still unclear. Prospective longitudinal designs providing information about the extent of such possible long-term effects are missing. This study aims to investigate the long-term effects of a homebased uni- and multidisciplinary motor control exercise program on low back pain intensity, disability and psychosocial variables. 14 months after completion of a multicenter study comparing uni- and multidisciplinary exercise interventions, a sample of one study center (n = 154) was assessed once more. Participants filled in questionnaires regarding their low back pain symptoms (characteristic pain intensity and related disability), stress and vital exhaustion (short version of the Maastricht Vital Exhaustion Questionnaire), anxiety and depression experiences (the Hospital and Anxiety Depression Scale), and pain-related cognitions (the Fear Avoidance Beliefs Questionnaire). Repeated measures mixed ANCOVAs were calculated to determine the long-term effects of the interventions on characteristic pain intensity and disability as well as on the psychosocial variables. Fifty four percent of the sub-sample responded to the questionnaires (n = 84). Longitudinal analyses revealed a significant long-term effect of the exercise intervention on pain disability. The multidisciplinary group missed statistical significance yet showed a medium sized long-term effect. The groups did not differ in their changes of the psychosocial variables of interest. There was evidence of long-term effects of the interventions on pain-related disability, but there was no effect on the other variables of interest. This may be partially explained by participant's low comorbidities at baseline. Results are important regarding costless homebased alternatives for back pain patients and prevention tasks. Furthermore, this study closes the gap of missing long-term effect analysis in this field.},
  language  = {en}
}
@article{LesinskiPrieskeChaabeneetal.2021,
  author    = {Lesinski, Melanie and Prieske, Olaf and Chaabene, Helmi and Granacher, Urs},
  title     = {Seasonal effects of strength endurance vs. power training in young female soccer athletes},
  series = {Journal of strength and conditioning research : the research journal of the NSCA},
  volume    = {35},
  journal   = {Journal of strength and conditioning research : the research journal of the NSCA},
  number    = {Supplement 12},
  publisher = {Lippincott Williams \& Wilkins},
  address   = {Philadelphia},
  issn      = {1064-8011},
  doi       = {10.1519/JSC.0000000000003564},
  pages     = {S90 -- S96},
  year      = {2021},
  abstract  = {Lesinski, M, Prieske, O, Chaabene, H, and Granacher, U. Seasonal effects of strength endurance vs. power training in young female soccer athletes. J Strength Cond Res 35(12S): S90-S96, 2021-This study examined the seasonal effects of strength endurance training (SET) vs. power training (PT) on physical fitness and body composition in young female soccer players. Thirty-six young female elite soccer players (15 +/- 1 years; maturity offset +3 +/- 1 years) were allocated to progressive SET (n = 19) or PT (n = 17). Over the course of one soccer season, SET performed slow movement velocity, moderate intensity (50-60\% of the 1 repetition maximum [1RM]; 20-40 repetitions) strength exercises while PT performed moderate-to-high intensity (50-95\% of the 1RM; 3-8 repetitions), high movement velocity strength exercises (2 sessions center dot wk(-1)). Before and after training, tests were performed for the assessment of muscle strength (1RM leg press), jump performance (countermovement jump [CMJ], drop jump [DJ]), muscular endurance (ventral Bourban test), linear speed (10 m, 20 m), change-of-direction (CoD) speed (T-test), dynamic balance (Y-balance test), sport-specific performance (kicking velocity), and body composition (lean body mass and fat mass). An analysis of covariance was used to test for between-group differences at post-test with baseline values as covariate. No significant between-group differences were observed in terms of total training volume over the respective soccer seasons (p = 0.069; d = 0.68). At post-test, SET showed significantly better ventral Bourban and T-test performances (d = 1.28-2.28; p = 0.000-0.001) compared with PT. However, PT resulted in significantly better 1RM leg press, DJ, 10-m, and 20-m sprint performances (d = 0.85-1.44; p = 0.000-0.026). No significant between-group differences were observed at post-test for CMJ, Y-balance test, kicking performance, and body composition (d = 0.20-0.74, p = 0.051-0.594). Our findings are mainly in accordance with the principle of training specificity. Both SET and PT are recommended to be implemented in young female elite soccer players according to the respective training period.},
  language  = {en}
}
@article{HammamiChaabeneKharratetal.2021,
  author    = {Hammami, Raouf and Chaabene, Helmi and Kharrat, Fatma and Werfelli, Hanen and Duncan, Michael and Rebai, Haithem and Granacher, Urs},
  title     = {Acute effects of different balance exercise types on selected measures of physical fitness in youth female volleyball players},
  series = {BMC Sports Science, Medicine and Rehabilitation},
  volume    = {13},
  journal   = {BMC Sports Science, Medicine and Rehabilitation},
  publisher = {BioMed Central},
  address   = {London},
  issn      = {1758-2555},
  doi       = {10.1186/s13102-021-00249-5},
  pages     = {8},
  year      = {2021},
  abstract  = {Background Earlier studies have shown that balance training (BT) has the potential to induce performance enhancements in selected components of physical fitness (i.e., balance, muscle strength, power, speed). While there is ample evidence on the long-term effects of BT on components of physical fitness in youth, less is known on the short-term or acute effects of single BT sessions on selected measures of physical fitness. Objective To examine the acute effects of different balance exercise types on balance, change-of-direction (CoD) speed, and jump performance in youth female volleyball players. Methods Eleven female players aged 14 years participated in this study. Three types of balance exercises (i.e., anterior, posterolateral, rotational type) were conducted in randomized order. For each exercise, 3 sets including 5 repetitions were performed. Before and after the performance of the balance exercises, participants were tested for their static balance (center of pressure surface area [CoP SA] and velocity [CoP V]) on foam and firm surfaces, CoD speed (T-Half test), and vertical jump height (countermovement jump [CMJ] height). A 3 (condition: anterior, mediolateral, rotational balance exercise type) × 2 (time: pre, post) analysis of variance was computed with repeated measures on time. Results Findings showed no significant condition × time interactions for all outcome measures (p > 0.05). However, there were small main effects of time for CoP SA on firm and foam surfaces (both d = 0.38; all p < 0.05) with no effect for CoP V on both surface conditions (p > 0.05). For CoD speed, findings showed a large main effect of time (d = 0.91; p < 0.001). However, for CMJ height, no main effect of time was observed (p > 0.05). Conclusions Overall, our results indicated small-to-large changes in balance and CoD speed performances but not in CMJ height in youth female volleyball players, regardless of the balance exercise type. Accordingly, it is recommended to regularly integrate balance exercises before the performance of sport-specific training to optimize performance development in youth female volleyball players.},
  language  = {en}
}
@article{SammoudNegraBouguezzietal.2021,
  author    = {Sammoud, Senda and Negra, Yassine and Bouguezzi, Raja and Hachana, Younes and Granacher, Urs and Chaabene, Helmi},
  title     = {The effects of plyometric jump training on jump and sport-specific performances in prepubertal female swimmers},
  series = {Journal of exercise science and fitness : JESF : official journal of The Society of Chinese Scholars on Exercise Physiology and Fitness and Hong Kong Association of Sports Medicine \& Sports Science},
  volume    = {19},
  journal   = {Journal of exercise science and fitness : JESF : official journal of The Society of Chinese Scholars on Exercise Physiology and Fitness and Hong Kong Association of Sports Medicine \& Sports Science},
  number    = {1},
  publisher = {Elsevier},
  address   = {Singapore},
  issn      = {1728-869x},
  doi       = {10.1016/j.jesf.2020.07.003},
  pages     = {25 -- 31},
  year      = {2021},
  abstract  = {Background/objective Dry land-training (e.g., plyometric jump training) can be a useful mean to improve swimming performance. This study examined the effects of an 8-week plyometric jump training (PJT) program on jump and sport-specific performances in prepubertal female swimmers. Methods Twenty-two girls were randomly assigned to either a plyometric jump training group (PJTG; n = 12, age: 10.01 ± 0.57 years, maturity-offset = -1.50 ± 0.50, body mass = 36.39 ± 6.32 kg, body height = 146.90 ± 7.62 cm, body mass index = 16.50 ± 1.73 kg/m2) or an active control (CG; n = 10, age: 10.50 ± 0.28 years, maturity-offset = -1.34 ± 0.51, body mass = 38.41 ± 9.42 kg, body height = 143.60 ± 5.05 cm, body mass index = 18.48 ± 3.77 kg/m2). Pre- and post-training, tests were conducted for the assessment of muscle power (e.g., countermovement-jump [CMJ], standing-long-jump [SLJ]). Sport-specific-performances were tested using the timed 25 and 50-m front crawl with a diving-start, timed 25-m front crawl without push-off from the wall (25-m WP), and a timed 25-m kick without push-off from the wall (25-m KWP). Results Findings showed a significant main effect of time for the CMJ (d = 0.78), the SLJ (d = 0.91), 25-m front crawl test (d = 2.5), and the 25-m-KWP (d = 1.38) test. Significant group × time interactions were found for CMJ, SLJ, 25-m front crawl, 50-m front crawl, 25-m KWP, and 25-m WP test (d = 0.29-1.63) in favor of PJTG (d = 1.34-3.50). No significant pre-post changes were found for CG (p > 0.05). Conclusion In sum, PJT is effective in improving muscle power and sport-specific performances in prepubertal swimmers. Therefore, PJT should be included from an early start into the regular training program of swimmers.},
  language  = {en}
}
@article{ChaabeneNegraMoranetal.2021,
  author    = {Chaabene, Helmi and Negra, Yassine and Moran, Jason and Prieske, Olaf and Sammoud, Senda and Ramirez-Campillo, Rodrigo and Granacher, Urs},
  title     = {Plyometric training improves not only measures of linear speed, power, and change-of-direction speed but also repeated sprint ability in young female handball players},
  series = {Journal of strength and conditioning research : the research journal of the NSCA},
  volume    = {35},
  journal   = {Journal of strength and conditioning research : the research journal of the NSCA},
  number    = {8},
  publisher = {Lippincott Williams \& Wilkins},
  address   = {Philadelphia},
  issn      = {1064-8011},
  doi       = {10.1519/JSC.0000000000003128},
  pages     = {2230 -- 2235},
  year      = {2021},
  abstract  = {This study examined the effects of an 8-week plyometric training (PT) program on components of physical fitness in young female handball players. Twenty-one female adolescent handball players were assigned to an experimental group (EG, n = 12; age = 15.9 +/- 0.2 years) or an active control group (CG, n = 9, age = 15.9 +/- 0.3 years). While EG performed plyometric exercises in replacement of some handball-specific drills, CG maintained the regular training schedule. Baseline and follow-up tests were performed for the assessment of linear speed (i.e., 5-, 10-, and 20-m time), change-of-direction (CoD) speed (i.e., T-test time), muscle power (i.e., countermovement jump [CMJ] height and reactive strength index [RSI]), and repeated sprint ability (RSA) (RSA total time [RSA(total)], RSA best time [RSA(best)], and RSA fatigue index [RSA(FI)]). Data were analyzed using magnitude-based inferences. Within-group analyses for the EG revealed moderate-to-large improvements for the 5-m (effect size [ES] = 0.81 [0.1-1.5]), 10-m sprint time (ES = 0.84 [0.1-1.5]), RSI (ES = 0.75 [0.1-1.4]), RSA(FI) (ES = 0.65 [0.0-1.3]), and T-test time (ES = 1.46 [0.7-2.2]). Trivial-to-small ES was observed for RSA(best) (ES = 0.18 [-0.5 to 0.9]), RSA(total) (ES = 0.45 [-0.2 to 1.1]), 20-m sprint time (ES = 0.56 [-0.1 to 1.2]), and CMJ height (ES = 0.57 [-0.1 to 1.3]). For the CG, within-group analyses showed a moderate performance decline for T-test time (ES = -0.71 [-1.5 to 0.1]), small decreases for 5-m sprint time (ES = -0.46 [-1.2 to 0.3]), and a trivial decline for 10-m (ES = -0.10 [-0.9 to 0.7]) and 20-m sprint times (ES = -0.16 [-0.9 to 0.6]), RSA(total) (ES = 0.0 [-0.8 to 0.8]), and RSA(best) (ES = -0.20 [-0.9 to 0.6]). The control group achieved trivial-to-small improvements for CMJ height (ES = 0.10 [-0.68 to 0.87]) and RSI (ES = 0.30 [-0.5 to 1.1]). In conclusion, a short-term in-season PT program, in replacement of handball-specific drills, is effective in improving measures of physical fitness (i.e., linear/CoD speed, jumping, and RSA) in young female handball players.},
  language  = {en}
}
@article{PalmaMunozRamirezCampilloAzocarGallardoetal.2021,
  author    = {Palma-Mu{\~n}oz, Ignacio and Ram{\´i}rez-Campillo, Rodrigo and Azocar-Gallardo, Jairo and {\´A}lvarez, Cristian and Asadi, Abbas and Moran, Jason and Chaabene, Helmi},
  title     = {Effects of progressed and nonprogressed volume-based overload plyometric training on components of physical fitness and body composition variables in youth male basketball players},
  series = {Journal of strength and conditioning research : the research journal of the NSCA},
  volume    = {35},
  journal   = {Journal of strength and conditioning research : the research journal of the NSCA},
  number    = {6},
  publisher = {Lippincott Williams \& Wilkins},
  address   = {Philadelphia},
  issn      = {1064-8011},
  doi       = {10.1519/JSC.0000000000002950},
  pages     = {1642 -- 1649},
  year      = {2021},
  abstract  = {This study examined the effect of 6 weeks of progressed and nonprogressed volume-based overload plyometric training (PT) on components of physical fitness and body composition measures in young male basketball players, compared with an active control group. Subjects were randomly assigned to a progressed PT (PPT, n = 7; age = 14.6 +/- 1.1 years), a non-PPT (NPPT, n = 8, age = 13.8 +/- 2.0 years), or a control group (CG, n = 7, age = 14.0 +/- 2.0 years). Before and after training, body composition measures (muscle mass and fat mass), countermovement jump with arms (CMJA) and countermovement jump without arms (CMJ), horizontal bilateral (HCMJ) and unilateral jump with right leg (RJ) and left leg (LJ), 20-cm drop jump (DJ20), sprint speed (10 m sprint), and change of direction speed (CODS [i.e., T-test]) were tested. Significant effects of time were observed for muscle and fat mass, all jump measures, and CODS (all p < 0.01; d = 0.37-0.83). Significant training group x time interactions were observed for all jump measures (all p < 0.05; d = 0.24-0.41). Post hoc analyses revealed significant pre-post performance improvements for the PPT (RJ and LJ: increment 18.6\%, d = 0.8 and increment 22.7\%, d = 0.9, respectively; HCMJ: increment 16.4\%, d = 0.8; CMJ: increment 22.4\%, d = 0.7; CMJA: increment 23.3\%, d = 0.7; and DJ20: increment 39.7\%, d = 1.1) and for the NPPT group (LJ: increment 14.1\%, d = 0.4; DJ20: increment 32.9\%, d = 0.8) with greater changes after PPT compared with NPPT for all jump measures (all p < 0.05; d = 0.21-0.81). The training efficiency was greater (p < 0.05; d = 0.22) after PPT (0.015\% per jump) compared with NPPT (0.0053\% per-jump). The PPT induced larger performance improvements on measures of physical fitness as compared to NPPT. Therefore, in-season progressive volume-based overload PT in young male basketball players is recommended.},
  language  = {en}
}