The Effect of Plyometric Training on Power and Kicking Distance in Female Adolescent Soccer Players

The aim of the study was to determine the effects of short-term (4 weeks, twice a week: 8 sessions) plyometric training on agility, jump, and repeated sprint performance in female soccer players. The study comprised 17 females performing this sports discipline. The players were randomly divided into two groups: with plyometric training (PLY) and the control (CON). All players followed the same training program, but the PLY group also performed plyometric exercises. Tests used to evaluate physical performance were carried out immediately before and after PLY. After implementing the short PLY training, significant improvement in jump performance (squat jump: p = 0.04, ES = 0.48, countermovement jump: p = 0.009, ES = 0.42) and agility (p = 0.003, ES = 0.7) was noted in the PLY group. In the CON group, no significant (p > 0.05) changes in physical performance were observed. In contrast, PLY did not improve repeated sprint performance (p > 0.05) among female soccer players. In our research, it was shown that PLY can also be effective when performed for only 4 weeks instead of the 6–12 weeks typically applied.

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Female adolescent soccer players' perceived motivational climate, goal orientations, and mindful engagement

Psychology of Sport and Exercise ◽

10.1016/j.psychsport.2016.09.002 ◽

2016 ◽

Vol 27 ◽

pp. 222-231 ◽

Cited By ~ 8

Author(s):

Susumu Iwasaki ◽

Mary D. Fry

Keyword(s):

Goal Orientations ◽

Motivational Climate ◽

Female Adolescent ◽

Soccer Players ◽

Mindful Engagement ◽

Perceived Motivational Climate

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Reproducibility and inter-observer agreement of Greulich-Pyle protocol to estimate skeletal age among female adolescent soccer players

BMC Pediatrics ◽

10.1186/s12887-020-02383-4 ◽

2020 ◽

Vol 20 (1) ◽

Author(s):

Yuri V. Faustino-da-Silva ◽

Diogo V. Martinho ◽

Manuel J. Coelho-e-Silva ◽

João Valente-dos-Santos ◽

Jorge Conde ◽

...

Keyword(s):

Female Adolescent ◽

Skeletal Age ◽

Observer Agreement ◽

Soccer Players ◽

Biological Maturation ◽

Reproducible Method ◽

The Mean ◽

Mean Differences ◽

The Impact

Abstract Background Skeletal age (SA) is considered the best method of assessing biological maturation. The aim of this study was to determine intra-observer (reproducibility) and inter-observer agreement of SA values obtained via the Greulich-Pyle (GP) method. In addition, the variation in calculated SAs by alternative GP protocols was examined. Methods The sample was composed of 100 Portuguese female soccer players aged 12.0–16.7 years. SAs were determined using the GP method by two observers (OB1: experience < 100 exams using GP; OB2: experience > 2000 exams using several methods). The radiographs were examined using alternative GP protocols: (wholeGP) the plate was matched to the atlas as an overall approach; (30-boneGP) bone-by-bone inspections of 30-bones; (GPpmb) bone-by-bone inspections of the pre-mature bones only. For the 30-boneGP and GPpmb approaches, SA was calculated via the mean (M) and the median (Md). Results Reproducibility ranged 82–100% and 88–100% for OB1 and OB2, respectively. Inter-observer agreement (100 participants multiplied by 30 bones) was 92.1%. For specific bones, agreement rates less than 90% were found for scaphoid (81%), medial phalange V (83%), trapezium (84%) and metacarpal V (87%). Differences in wholeGP SAs obtained by the two observers were moderate (d-cohen was 0.79). Mean differences between observers when using bone-by bone SAs were trivial (30-boneGP: d-cohen less than 0.05; GPpmb: d-cohen less than 0.10). The impact of using the mean or the median was negligible, particularly when analyses did not include bones scored as mature. Conclusion The GP appeared to be a reasonably reproducible method to assess SA and inter-observer agreement was acceptable. There is evidence to support a recommendation of only scoring pre-mature bones during later adolescence. Further research is required to examine whether these findings are consistent in younger girls and in boys.

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Effects of verbal knee alignment instructions on knee kinematics, kinetics and the performance of a single-leg jump in female adolescent soccer players

European Journal of Physiotherapy ◽

10.1080/21679169.2019.1578823 ◽

2019 ◽

Vol 22 (2) ◽

pp. 106-114

Author(s):

Wilhelmus Johannes Andreas Grooten ◽

Oskar Karlefur ◽

David Conradsson

Keyword(s):

Knee Kinematics ◽

Female Adolescent ◽

Soccer Players ◽

Knee Alignment

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Data concerning the effect of plyometric training on jump performance in soccer players: A meta-analysis

Data in Brief ◽

10.1016/j.dib.2017.09.054 ◽

2017 ◽

Vol 15 ◽

pp. 324-334 ◽

Cited By ~ 4

Author(s):

Maamer Slimani ◽

Armin Paravlić ◽

Nicola Luigi Bragazzi

Keyword(s):

Meta Analysis ◽

Soccer Players ◽

Plyometric Training ◽

Jump Performance

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Short-Term Compound Training on Physical Performance in Young Soccer Players

Sports ◽

10.3390/sports8080108 ◽

2020 ◽

Vol 8 (8) ◽

pp. 108 ◽

Cited By ~ 1

Author(s):

Athos Trecroci ◽

Marco Duca ◽

Damiano Formenti ◽

Giampietro Alberti ◽

F. Marcello Iaia ◽

...

Keyword(s):

Vertical Jump ◽

The Other ◽

Soccer Players ◽

Plyometric Training ◽

Countermovement Jump ◽

Short Term ◽

Squat Jump ◽

Change Of Direction ◽

Compound Training ◽

Strength Exercises

This study aimed to investigate the effects of a five-week compound training (with strength and plyometric exercises performed on separate days) on sprint, change of direction, and vertical jump in young soccer players. Eighteen novices in strength and plyometric training were assigned to either a compound training (CMPT) or a control condition (CNT). Both groups trained three times per week. One session was dedicated to soccer-specific drills. The other two weekly sessions were dedicated to circuit-based training routines employing on one-day strength exercises and on the other day plyometric exercises in the CMPT group. At the same time, the CNT group performed two weekly soccer-specific training sessions. All players were tested by 15-m sprint, change-of-direction and acceleration test (CODAT), squat jump, and countermovement jump with arms swing tests. CMPT group improved CODAT, squat jump and countermovement jump to a higher extent compared to CNT group (large vs small or trivial effects, p < 0.05), while both groups had similar 15-m sprint performance (p > 0.05). These results support the use of compound training to improve change of direction and vertical jump performances in young novice soccer players, which are unfamiliar with structured and advanced strength and plyometric training.

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INFLUENCE OF A 6-WEEK MIXED BALLISTIC-PLYOMETRIC TRAINING ON THE LEVEL OF SELECTED STRENGTH AND SPEED INDICES OF THE LOWER LIMBS IN YOUNG FOOTBALL PLAYERS

SOCIETY INTEGRATION EDUCATION Proceedings of the International Scientific Conference ◽

10.17770/sie2019vol4.3718 ◽

2019 ◽

Vol 4 ◽

pp. 198

Author(s):

Marcin Krawczyk ◽

Mariusz Pociecha

Keyword(s):

Training Program ◽

Motor Skills ◽

Muscle Power ◽

Anaerobic Power ◽

Lower Limbs ◽

Soccer Players ◽

Training Methods ◽

Plyometric Training ◽

Cohen’S D ◽

Cohen's D

The development of muscle power should be taken into account in soccer training. The aim of this study was to evaluate the influence of a 6-week of mixed power training on the level of the motor skills of the lower limbs of young soccer players. The training was conducted during the starting period. The study included twelve 16-18-year-old players who regularly participated in specific soccer trainings and played in regional competitions. Their basic anthropometric features were measured. The assessment of the power of the lower limbs was carried out using two jump tests: CMJ and SJ. The maximum anaerobic power was calculated and was expressed in relation to body weight and lean body mass. In addition, Drop Jump tests were performed from three different heights on the basis of which RSI reactive strength index were calculated. On completion of the training program an increase in the level of the results of all the tests was observed: SJ (cm) (cohen's d: 0.43), CMJ (cm) (cohen's d: 0.33), SJPmax (W/kg) (cohen's d: 0.43), CMJPmax (W/kg) (cohen's d: 0.30), SJPmax (W/LBMkg) (cohen's d): 0,57), CMJPmax (W/LBMkg) (cohen's d: 0,44), RSI 0,2 (cohen's d: 0,59), RSI 0,3 (cohen's d: 0,45), RSI 0,4 (cohen's d: 0,58). An additional six-week ballistic-plyometric training program, used as a supplement to the basic training plan during the start period, resulted in an increase in the motor skills of the lower limbs of young soccer players. The application of combined ballistic and plyometric training methods helps to improve the strength and speed potential of young soccer players.

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