scholarly journals Effect of a 12-Week Off-Season Strength Training Program on Athletic Performance in Adolescent Baseball Players

2020 ◽  
Vol 2 (1) ◽  
pp. 1-9
Author(s):  
Steven F DeFroda ◽  

Performing a 12-week strength training program increased running speed but not bat exit velocity or post-program hitting performance statistics. Baseball-specific strength training programs are safe and effective interventions that can improve athleticism in adolescents

2020 ◽  
Vol 5 (3) ◽  
pp. 60
Author(s):  
Stefano Moffa ◽  
Angelica Perna ◽  
Gabriele Candela ◽  
Alessandro Cattolico ◽  
Carmine Sellitto ◽  
...  

Hoverboards are always more popular among children. Hoverboards are to them like a game or a mean of transport, but they could be used as a valid and useful instrument in children’s training programs to improve their performance. In this study, we compared the athletic performance of two groups of 12 children. A total of 24 children aged between 8 and 11 years followed a similar training program for five months, but the first group used a hoverboard (Hb+ group: Age: Standard Deviation (SD) = 1.15 Mean = 9.66; Weight: SD = 5.90 Mean = 32; Height: SD = 7.64 Mean = 135.08) for some of the training time, differently from the second group (Hb- group: Age: SD = 1.15 Mean = 9.66; Weight: SD = 5.82 Mean = 31.16; Height: SD = 7.66 Mean = 136.16), which never used it. All of the children were asked to complete three tests (one leg test, stork test and balance beam walking test) before starting their own training program and after five months, to evaluate how their performances changed in terms of time. Comparing the recorded time difference between T0 and T1 of the Hb+ group with the same difference measured in Hb- group, it was found that there was a statistically significant difference (p value < 0.05) between these data for all three tests. Children who used the hoverboard in their training program achieved better result than children who did not use it. In the future, the hoverboard could help athletes to improve their performances, possibly applying it not only in football training, but even in other sports.


2017 ◽  
Vol 14 (4) ◽  
pp. 3432
Author(s):  
Nebahat Eler ◽  
Serdar Eler

The aim of this study is to examine the acute effect of different training programs applied to elite female handball players on throwing accuracy. 14 elite female players were participated in the study. The mean age of the participating players was 28.64 ± 9.88 (years), the mean height length was 176.50 ± 4.86 (cm), the mean body weight was 68.07 ± 2.12 (kg) and the mean sport age was 14.36 ± 4.89 (years). On different days, a technical training program, maximal strength training program, strength endurance training program and speed power training program have been implemented to the participating players in the research.  Before and after training, the players throwing the ball from their area to the specific points of goal and the percentage of accuracy was determined. As a result; there was a significant difference between before and after maximal strength training  the mean values of throwing accuracy (p<0,05) but there was no significant difference before and after other training programs (p> 0,05). This result indicates that acute maximal strength training has a negative effect on throwing accuracy.


2020 ◽  
Vol 15 (10) ◽  
pp. 1460-1466 ◽  
Author(s):  
Alejandro Pérez-Castilla ◽  
Amador García-Ramos

Objective: To compare the short-term effect of power- and strength-oriented resistance-training programs on the individualized load–velocity profiles obtained during the squat (SQ) and bench-press (BP) exercises. Methods: Thirty physically active men (age = 23.4 [3.5] y; SQ 1-repetition maximum [1RM] = 126.5 [26.7] kg; BP 1RM = 81.6 [16.7] kg) were randomly assigned to a power- (exercises: countermovement jump and BP throw; sets per exercise: 4–6; repetitions per set: 5–6; load: 40% 1RM) or strength-training group (exercises: SQ and BP; sets per exercise: 4–6; repetitions per set: 2–8; load: 70%–90% 1RM). The training program lasted 4 wk (2 sessions/wk). The individualized load–velocity profiles (ie, velocity associated with the 30%–60%–90% 1RM) were assessed before and after training through an incremental loading test during the SQ and BP exercises. Results: The power-training group moderately increased the velocity associated with the full spectrum of % 1RM for the SQ (effect size [ES] range: 0.70 to 0.93) and with the 30% 1RM for the BP (ES: 0.67), while the strength-training group reported trivial/small changes across the load–velocity spectrum for both the SQ (ES range: 0.00 to 0.35) and BP (ES range: −0.06 to −0.33). The power-training group showed a higher increase in the mean velocity associated with all % 1RM compared with the strength-training group for both the SQ (ES range: 0.54 to 0.63) and BP (ES range: 0.25 to 0.53). Conclusions: The individualized load–velocity profile (ie, velocity associated with different % 1RM) of lower-body and upper-body exercises can be modified after a 4-wk resistance-training program.


2012 ◽  
Vol 7 (1) ◽  
pp. 2-5 ◽  
Author(s):  
Michael R. McGuigan ◽  
Glenn A. Wright ◽  
Steven J. Fleck

The use of strength training designed to increase underlying strength and power qualities in elite athletes in an attempt to improve athletic performance is commonplace. Although the extent to which strength and power are important to sports performance may vary depending on the activity, the associations between these qualities and performance have been well documented in the literature. The purpose of this review is to provide a brief overview of strength training research to determine if it really helps improve athletic performance. While there is a need for more research with elite athletes to investigate the relationship between strength training and athletic performance, there is sufficient evidence for strength training programs to continue to be an integral part of athletic preparation in team sports.


Retos ◽  
2015 ◽  
pp. 33-36
Author(s):  
María del Carmen Ferrer Contreras

El presente trabajo es un estudio de ámbito deportivo, donde se pretende conocer y mejorar la manifestación de fuerza menos desarrollada, modificando el Índice de Bosco, utilizando dos programas de entrenamiento de la fuerza por contraste acentuado en la serie. Para ello, se ha seleccionado una muestra de nueve jugadoras de división de honor con edades comprendidas entre los 18 y 32 años siendo divididas en dos grupos. Un grupo formado por aquellas jugadoras que han obtenido en el pretest unos valores más bajos en el Índice de Bosco, que llevará a cabo un programa de entrenamiento de fuerza por contraste acentuado en la serie con cargas máximas y pliometría y el otro grupo por las que consiguieron unos valores más altos, que realizarán un programa de entrenamiento de fuerza por contraste acentuado en la serie con cargas medias y pliometría, a los cuales serán sometidas durante un periodo de diez semanas, ejecutando dos sesiones en cada una. Los resultados obtenidos de la investigación  muestran diferencias significativas en el pretest entre ambos grupos,  lográndose igualar los Índices de Bosco de ambos grupos en el test intermedio y postest.Abstract: The current work is a sports field study, where the purpose is to know and to improve the less develop strength display, altering the Bosco Index, using two strength training programs by series stressed contrast. For that, it has been choosing a sample of nine elite female players between 18 and 32 years old, being splat in two groups up. One group was set for those players whose got the lowest Bosco Index scores, and made a strength training program with maximum loads and plyometric. The other group was set with the players whose got the highest Bosco Index scores, and did the strength training program with medium loads and plyometric. Both groups were training during ten weeks, twice a week. The research outcomes show significant differences in both groups during pretest, achieving to make equal the Index Bosco during the intermediate test and post test.


2019 ◽  
Vol 14 (2) ◽  
pp. 163-169 ◽  
Author(s):  
Mehrez Hammami ◽  
Nawel Gaamouri ◽  
Gaith Aloui ◽  
Roy J. Shephard ◽  
Mohamed Souhaiel Chelly

2018 ◽  
Vol 64 (1) ◽  
pp. 195-204
Author(s):  
José María González Ravé ◽  
Alejandro Legaz-Arrese ◽  
Fernando González-Mohíno ◽  
Inmaculada Yustres ◽  
Rubén Barragán ◽  
...  

Abstract This study used a power rack device to evaluate the effects of 2 different approaches to resisted swim training loads on swimming strength and performance. Sixteen male, youth national-level swimmers (mean age, 16.22 ± 2.63 years; body height, 169 ± 10.20 cm; body mass, 61.33 ± 9.90 kg) completed a 6-week specific strength-training program, and were then randomly assigned to one of the two groups: a standard training group (GS, n = 8) and a flat pyramid-loading pattern group (GP, n = 8). Strength and power tests along with specific swimming tests (50-m crawl and 50-m competition-style time trials) were conducted at baseline (pre-test), before the third week (mid-test), and after 6 weeks of intervention (post-test). Isokinetic swim bench tests were conducted to obtain measurements of force production and power, and 1RM tests with the power rack system were conducted to measure the maximum drag load (MDL) and specific swimming power. Following 6 weeks of intervention, the mean MDL increased (p < 0.05) by 13.94%. Scores for the 50-m competition style and 50-m crawl time trials improved by 0.32% and 0.78%, respectively, in the GP; however, those changes were not statistically significant. The GS significantly increased their time in the 50-m competition style by 2.59%, and their isokinetic force production decreased by 14.47% (p < 0.05). The 6-week strength-training program performed with the power rack device in a pyramidal organization was more effective than a standard linear load organization in terms of producing improvements in the MDL; however, it did not produce significant improvements in performance. The use of a strength-training program with a pyramidal organization can be recommended for specific strength-training in young swimmers during a preparatory period. However, in our study, that program did not produce significant changes in 50-m crawl and main competition style performance.


2007 ◽  
Vol 30 (4) ◽  
pp. 67
Author(s):  
S. Glover Takahashi ◽  
M. Alameddine ◽  
D. Martin ◽  
S. Verma ◽  
S. Edwards

This paper is describes the design, development, implementation and evaluation of a preparatory training program for international medical trainees. The program was offered for one week full time shortly before they begin their residency training programs. First the paper reports on the survey and focus groups that guided the learning objectives and the course content. Next the paper describes the curriculum development phase and reports on the topical themes, session goals and objectives and learning materials. Three main themes emerged when developing the program: understanding the educational, health and practice systems in Canada; development of communication skills; and supporting personal success in residency training including self assessment, reflection and personal wellness. Sample lesson plans and handouts from each of the theme areas are illustrated. The comprehensive evaluation of the sessions and the overall program is then also described. The paper then summarizes the identified key issues and challenges in the design and implementation of a preparatory training program for international medical trainees before they begin their residency training programs. Allan GM, Manca D, Szafran O, Korownyk C. Workforce issues in general surgery. Am Surg. 2007 Feb; 73(2):100-8. Dauphinee, WD. The circle game: understanding physician migration patterns within Canada. Acad Med. 2006 (Dec); 81(12 Suppl):S49-54. Spike NA. International medical graduates: the Australian perspective. Academic Medicine. 2006 (Sept); 81(9):842-6.


2007 ◽  
Vol 30 (4) ◽  
pp. 56
Author(s):  
I. Rigby ◽  
I. Walker ◽  
T. Donnon ◽  
D. Howes ◽  
J. Lord

We sought to assess the impact of procedural skills simulation training on residents’ competence in performing critical resuscitation skills. Our study was a prospective, cross-sectional study of residents from three residency training programs (Family Medicine, Emergency Medicine and Internal Medicine) at the University of Calgary. Participants completed a survey measuring competence in the performance of the procedural skills required to manage hemodynamic instability. The study intervention was an 8 hour simulation based training program focused on resuscitation procedure psychomotor skill acquisition. Competence was criterion validated at the Right Internal Jugular Central Venous Catheter Insertion station by an expert observer using a standardized checklist (Observed Structured Clinical Examination (OSCE) format). At the completion of the simulation course participants repeated the self-assessment survey. Descriptive Statistics, Cronbach’s alpha, Pearson’s correlation coefficient and Paired Sample t-test statistical tools were applied to the analyze the data. Thirty-five of 37 residents (9 FRCPC Emergency Medicine, 4 CCFP-Emergency Medicine, 17 CCFP, and 5 Internal Medicine) completed both survey instruments and the eight hour course. Seventy-two percent of participants were PGY-1 or 2. Mean age was 30.7 years of age. Cronbach’s alpha for the survey instrument was 0.944. Pearson’s Correlation Coefficient was 0.69 (p < 0.001) for relationship between Expert Assessment and Self-Assessment. The mean improvement in competence score pre- to post-intervention was 6.77 (p < 0.01, 95% CI 5.23-8.32). Residents from a variety of training programs (Internal Medicine, Emergency Medicine and Family Medicine) demonstrated a statistically significant improvement in competence with critical resuscitation procedural skills following an intensive simulation based training program. Self-assessment of competence was validated using correlation data based on expert assessments. Dawson S. Procedural simulation: a primer. J Vasc Interv Radiol. 2006; 17(2.1):205-13. Vozenilek J, Huff JS, Reznek M, Gordon JA. See one, do one, teach one: advanced technology in medical education. Acad Emerg Med. 2004; 11(11):1149-54. Ziv A, Wolpe PR, Small SD, Glick S. Simulation-based medical education: an ethical imperative. Acad Med. 2003; 78(8):783-8.


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