scholarly journals Efecto del entrenamiento combinado de fuerza y pliometría en variables biomecánicas del salto vertical en jugadoras de baloncesto Effects of combined plyometric and resistance training in biomechanical variables of the vertical jump in basketball players)

Retos ◽  
2016 ◽  
pp. 114-117
Author(s):  
Alberto Sánchez-Sixto ◽  
Pablo Floría
Keyword(s):  
Resistance Training ◽  
Center Of Mass ◽  
Maximum Velocity ◽  
Training Group ◽  
Training Intervention ◽  
Control Group ◽  
Countermovement Jump ◽  
Basketball Players ◽  
Jump Performance ◽  
Combined Training

Objetivo. El propósito de la presente investigación fue determinar y comparar el efecto de un entrenamiento combinado de fuerza y pliometría en el rendimiento del salto vertical y en los parámetros de aplicación de fuerza, velocidad y desplazamiento del centro de gravedad durante el salto vertical. Material y método. Veinticinco jugadoras de baloncesto participaron en éste estudio y fueron asignadas de forma aleatoria a dos grupos: grupo entrenamiento y grupo control. El grupo de entrenamiento añadió a sus sesiones en pista 2 sesiones por semana de entrenamiento combinado: sentadilla profunda (50-65% de 1 repetición máxima de 3-6 repeticiones) y saltos repetidos (5-7 series de 5 saltos repetidos). El salto con contra-movimiento fue medido antes y después de las 6 semanas de entrenamiento. Resultados. Mejoras substanciales y probables fueron encontradas en la altura del salto vertical (12.2%). También se hallaron incrementos en la velocidad máxima durante el contramovimiento (14.0%), en la posición de máxima profundidad del centro de gravedad en la fase de bajada (10.9%). Sin embargo, no se encontraron diferencias en la fuerza máxima durante la fase de subida. Conclusión. Los resultados de este estudio muestran que el entrenamiento combinado mejora el rendimiento en el salto vertical en jugadoras de baloncesto y modifica el desplazamiento y las velocidades del centro de gravedad. Abstract. Purpose. The purpose of this investigation was determine and compare de effects of a combined plyometric and resistance training in the jump performance and the variables of force applied, velocity and displacement of the center of mass during the countermovement jump. Material and Method. Twenty five woman basketball players participated in this study and they were randomized assigned in two groups: a training group (n = 13) and a control group (n = 12). The training group performed 2 sessions per week of a combined plyometric and resistance training: deep squat (55-75% of 1RM of 3-6 repetitions) and jumps (5-7 series of 5 jumps). The countermovement jump was measured before and after 6 weeks of training. Results. The jump height showed a substantial increase after the training intervention (12.2%). In addition, the maximum velocity of the center of mass during the downward movement phase showed an increase (14.0). The crouch position was a 10.9% deeper after the training intervention. No differences were found in the force application variables of the countermovement when the training intervention ended. Conclusion. The outcomes of this investigation show that the combined training improve the jumping performance in women basketball players and modify the velocity and displacement of the center of mas during the countermovement jump.

scholarly journals Effects of Plyometric vs. Combined Plyometric Training on Vertical Jump Biomechanics in Female Basketball Players

2021 ◽  
Vol 77 (1) ◽  
pp. 25-35
Author(s):  
Alberto Sánchez-Sixto ◽  
Andrew J Harrison ◽  
Pablo Floría
Keyword(s):  
Vertical Velocity ◽  
Vertical Jump ◽  
Center Of Mass ◽  
Height Velocity ◽  
Moderate Increase ◽  
Training Methods ◽  
Plyometric Training ◽  
Basketball Players ◽  
Jump Performance ◽  
Combined Training

Abstract The purpose of this study was to assess and compare the effects of plyometric training and combined training programs on vertical jump kinematics and kinetics of female basketball players. Thirty-six female basketball players were included in the study and further divided into three groups: plyometric training, n = 11; combined training n =13; and a control group, n =12. Combined training comprised full squat exercise with low resistance (50-65% 1RM) and low volume (3-6 repetitions/set) combined with repeated jumps. Plyometric training included drop jumps and repeated jumps. Both training methods showed a moderate increase in jump performance, although combined training achieved substantially higher values than plyometric training alone. After plyometric training, the vertical velocity and displacement of the center of mass of the countermovement jump increased, while force variables decreased. Combined training increased power, vertical velocity and displacement of the center of mass, but force variables remained unchanged. Both training methods improved jump height, velocity and displacement of the center of mass. Combined training maintained force measures while plyometric training decreased them. These results indicate that combined training might provide better outcomes on jump performance than plyometric training alone. It also appears important to measure biomechanical variables to appropriately interpret the effects of different training methods.

Childhood Obesity, Physical Activity, and Exercise

2015 ◽  
Vol 27 (1) ◽  
pp. 42-47
Author(s):  
Dan Nemet
Keyword(s):  
Waist Circumference ◽  
Resistance Training ◽  
Body Fat ◽  
Aerobic Training ◽  
Training Group ◽  
Energy Deficit ◽  
Control Group ◽  
Percentage Body Fat ◽  
Obese Adolescents ◽  
Combined Training

Importance:Little evidence exists on which exercise modality is optimal for obese adolescents. Objective: To determine the effects of aerobic training, resistance training, and combined training on percentage body fat in overweight and obese adolescents.Design, Setting, and Participants:Randomized, parallel-group clinical trial at community-based exercise facilities in Ottawa (Ontario) and Gatineau (Quebec), Canada, among previously inactive postpubertal adolescents aged 14-18 years (Tanner stage IV or V) with body mass index at or above the 95th percentile for age and sex or at or above the 85th percentile plus an additional diabetes mellitus or cardiovascular risk factor. Interventions: After a 4-week run-in period, 304 participants were randomized to the following 4 groups for 22 weeks: aerobic training (n = 75), resistance training (n = 78), combined aerobic and resistance training (n = 75), or nonexercising control (n = 76). All participants received dietary counseling, with a daily energy deficit of 250 kcal.Main Outcomes and Measures:The primary outcome was percentage body fat measured by magnetic resonance imaging at baseline and 6 months. We hypothesized that aerobic training and resistance training would each yield greater decreases than the control and that combined training would cause greater decreases than aerobic or resistance training alone.Results:Decreases in percentage body fat were −0.3 (95% CI, −0.9 to 0.3) in the control group, −1.1 (95% CI, −1.7 to −0.5) in the aerobic training group (p = .06 vs. controls), and −1.6 (95% CI, −2.2 to −1.0) in the resistance training group (p = .002 vs controls). The −1.4 (95% CI, −2.0 to −0.8) decrease in the combined training group did not differ significantly from that in the aerobic or resistance training group. Waist circumference changes were −0.2 (95% CI, −1.7 to 1.2) cm in the control group, −3.0 (95% CI, −4.4 to −1.6) cm in the aerobic group (p = .006 vs controls), −2.2 (95% CI −3.7 to −0.8) cm in the resistance training group (p = .048 vs controls), and −4.1 (95% CI, −5.5 to −2.7) cm in the combined training group. In per-protocol analyses (> 70% adherence), the combined training group had greater changes in percentage body fat (-2.4, 95% CI, −3.2 to −1.6) vs the aerobic group (-1.2; 95% CI, −2.0 to −0.5; p = .04 vs the combined group) but not the resistance group (-1.6; 95% CI, −2.5 to −0.8).Conclusions and Relevance:Aerobic, resistance, and combined training reduced total body fat and waist circumference in obese adolescents. In more adherent participants, combined training may cause greater decreases than aerobic or resistance training alone.

scholarly journals Isolated Joint Block Progression Training Improves Leaping Performance in Dancers

2021 ◽  
Vol 3 ◽  
Author(s):  
Paige E. Rice ◽  
Kiisa Nishikawa ◽  
Sophia Nimphius
Keyword(s):  
Plantar Flexion ◽  
Center Of Mass ◽  
Training Group ◽  
Control Group ◽  
Plyometric Training ◽  
Joint Kinetics ◽  
Combined Training ◽  
Ankle Stiffness ◽  
Training Modalities ◽  
Kinematics And Kinetics

The purpose of this study was to investigate the effect of a 12-week ankle-specific block progression training program on saut de chat leaping performance [leap height, peak power (PP), joint kinetics and kinematics], maximal voluntary isometric plantar flexion (MVIP) strength, and Achilles tendon (AT) stiffness. Dancers (training group n = 7, control group n = 7) performed MVIP at plantarflexed (10◦) and neutral ankle positions (0◦) followed by ramping isometric contractions equipped with ultrasound to assess strength and AT stiffness, respectively. Dancers also performed saut de chat leaps surrounded by 3-D motion capture atop force platforms to determine center of mass and joint kinematics and kinetics. The training group then followed a 12-week ankle-focused program including isometric, dynamic constant external resistance, accentuated eccentric loading, and plyometric training modalities, while the control group continued dancing normally. We found that the training group's saut de chat ankle PP (59.8%), braking ankle stiffness (69.6%), center of mass PP (11.4%), and leap height (12.1%) significantly increased following training. We further found that the training group's MVIP significantly increased at 10◦ (17.0%) and 0◦ (12.2%) along with AT stiffness (29.6%), while aesthetic leaping measures were unchanged (peak split angle, mean trunk angle, trunk angle range). Ankle-specific block progression training appears to benefit saut de chat leaping performance, PP output, ankle-joint kinetics, maximal strength, and AT stiffness, while not affecting kinematic aesthetic measures. We speculate that the combined training blocks elicited physiological changes and enhanced neuromuscular synchronization for increased saut de chat leaping performance in this cohort of dancers.

scholarly journals Effects of Plyometric Training on Sprint Running Performance in Boys Aged 9–12 Years

Sports ◽  
2019 ◽  
Vol 7 (10) ◽  
pp. 219
Author(s):  
Nobuaki Tottori ◽  
Satoshi Fujita
Keyword(s):  
Maximum Velocity ◽  
Training Group ◽  
Step Length ◽  
Sprint Performance ◽  
Control Group ◽  
Plyometric Training ◽  
Step Frequency ◽  
Post Intervention ◽  
Jump Performance ◽  
Sprint Velocity

Skilled sprinting is fundamental in many sports, especially to improve athletic performance in youth. This study therefore aimed to investigate the effect of plyometric training on sprint performance in boys aged 9–12 years. Twenty boys were divided into a plyometric training group (n = 9) and a control training group (n = 11). In both groups, participants performed respective training programs once per week for 8 weeks with measurements at baseline and post-intervention. Sprint performance was assessed by 50-m sprint time, sprint velocity, step frequency and step length at 10-m intervals. Jumping performance was assessed using horizontal, vertical and rebound jumps. The plyometric training group showed an improved sprint velocity at 20–30 m, 30–40 m and 40–50 m, and step length at 0–10 m, 20–30 m and 30–40 m (p < 0.05). Furthermore, only the plyometric group showed an increased standing long jump distance and rebound jump performance (p < 0.05). The control group did not show any significant changes in any variable. Our findings suggest that plyometric training in pre-adolescent boys improves sprint velocity and step length at the maximum velocity phase concomitant with increased horizontal and rebound jump performance.

Effects of Two Different Resistance-Training Programs on Mean Tennis-Serve Velocity in Adolescents

2013 ◽  
Vol 25 (3) ◽  
pp. 370-384 ◽  
Author(s):  
Michael Behringer ◽  
Sebastian Neuerburg ◽  
Maria Matthews ◽  
Joachim Mester
Keyword(s):  
Resistance Training ◽  
Training Programs ◽  
Maximum Velocity ◽  
Training Group ◽  
Control Group ◽  
Plyometric Training ◽  
Male Athletes ◽  
Tennis Players ◽  
Junior Tennis ◽  
Tennis Serve

The purpose of the current study was to evaluate the transferability of 2 different resistance training protocols on service velocity and its precision consistency in junior tennis players. Thirty-six male athletes (15.03 ± 1.64 years) were randomly assigned to a machine-based resistance-training group (RG, n = 12), a plyometric training group (PG, n = 12), and a control group (CG, n = 12). For a period of 8 weeks, both intervention groups resistance trained 2 days per week in addition to their regular tennis training, whereas the CG had no extra training. Mean service velocity over 20 maximum-velocity serves increased significantly more in PG (3.78%; p < .05) when compared with CG, whereas no such changes could be found in the RG (1.18%; p > .05). Service precision did not change from pre- to posttest in all three groups (p > .05). Only the plyometric training program tested, improved mean service velocity over 20 maximum-velocity serves in junior tennis players but did not affect service precision.

scholarly journals Greater Power but Not Strength Gains Using Flywheel Versus Equivolumed Traditional Strength Training in Junior Basketball Players

2021 ◽  
Vol 18 (3) ◽  
pp. 1181
Author(s):  
Marko D. M. Stojanović ◽  
Mladen Mikić ◽  
Patrik Drid ◽  
Julio Calleja-González ◽  
Nebojša Maksimović ◽  
...  
Keyword(s):  
Strength Training ◽  
Training Group ◽  
T Test ◽  
Control Group ◽  
Basketball Players ◽  
Significant Group ◽  
Sprint Time ◽  
Change Of Direction ◽  
Time Interaction ◽  
And Control

The main aim of the present study was to compare the effects of flywheel strength training and traditional strength training on fitness attributes. Thirty-six well trained junior basketball players (n = 36; 17.58 ± 0.50 years) were recruited and randomly allocated into: Flywheel group (FST; n = 12), traditional strength training group (TST; n = 12) and control group (CON; n = 12). All groups attended 5 basketball practices and one official match a week during the study period. Experimental groups additionally participated in the eight-week, 1–2 d/w equivolume intervention conducted using a flywheel device (inertia = 0.075 kg·m−2) for FST or free weights (80%1 RM) for TST. Pre-to post changes in lower limb isometric strength (ISOMET), 5 and 20 m sprint time (SPR5m and SPR20m), countermovement jump height (CMJ) and change of direction ability (t-test) were assessed with analyses of variance (3 × 2 ANOVA). Significant group-by-time interaction was found for ISOMET (F = 6.40; p = 0.000), CMJ (F = 7.45; p = 0.001), SPR5m (F = 7.45; p = 0.010) and T test (F = 10.46; p = 0.000). The results showed a significantly higher improvement in CMJ (p = 0.006; 11.7% vs. 6.8%), SPR5m (p = 0.001; 10.3% vs. 5.9%) and t-test (p = 0.045; 2.4% vs. 1.5%) for FST compared to the TST group. Simultaneously, th FST group had higher improvement in ISOMET (p = 0.014; 18.7% vs. 2.9%), CMJ (p = 0.000; 11.7% vs. 0.3%), SPR5m (p = 0.000; 10.3% vs. 3.4%) and t-test (p = 0.000; 2.4% vs. 0.6%) compared to the CON group. Players from the TST group showed better results in CMJ (p = 0.006; 6.8% vs. 0.3%) and t-test (p = 0.018; 1.5% vs. 0.6%) compared to players from the CON group. No significant group-by-time interaction was found for sprint 20 m (F = 2.52; p = 0.088). Eight weeks of flywheel training (1–2 sessions per week) performed at maximum concentric intensity induces superior improvements in CMJ, 5 m sprint time and change of direction ability than equivolumed traditional weight training in well trained junior basketball players. Accordingly, coaches and trainers could be advised to use flywheel training for developing power related performance attributes in young basketball players.

scholarly journals 12-Week Exercise Training of Knee Joint and Squat Movement Improves Gait Ability in Older Women

2021 ◽  
Vol 18 (4) ◽  
pp. 1515
Author(s):  
Myungsoo Choi ◽  
Nayoung Ahn ◽  
Jusik Park ◽  
Kijin Kim
Keyword(s):  
Exercise Training ◽  
Knee Joint ◽  
Physical Fitness ◽  
Aerobic Training ◽  
Elderly Women ◽  
Training Group ◽  
Control Group ◽  
Active Motion ◽  
Combined Training ◽  
Digitally Controlled

This study analyzed the effects of an exercise training program consisting of a knee joint complex exercise device (leg-link system) with digitally controlled active motion function and squat movement on physical fitness and gait ability of elderly women aged 70 or above. Fifty four (54) elderly women aged 70 or above were divided into three groups as control group (n = 18), aerobic training group (n = 18), and combined training group with resistance and aerobic exercise (n = 18). Health-related physical fitness, gait ability-related physical fitness, and the temporal and spatial parameters of gait ability were compared. The health-related physical fitness after the 12-week training was not significantly altered in control group, whereas combined training group showed significant increase in all factors (p < 0.05) and aerobic training group showed significant increase (p < 0.05) only in the physical efficiency index. The gait ability-related physical fitness and all items of the temporal and spatial parameters of gait were found to have significantly increased (p < 0.05) in combined training group after the 12-week exercise training; however, in aerobic training group, only the factors related to muscular endurance and balance showed significant increase (p < 0.05). This study suggested that the exercise training consisting of knee joint complex exercise with digitally controlled active motion function and squat exercise for strengthening lower extremities and core muscles had positive effects on enhancing the ambulatory competence in elderly women.

scholarly journals Adaptations to Swimming Training in Athletes with Down’s Syndrome

2020 ◽  
Vol 17 (24) ◽  
pp. 9175
Author(s):  
José María González-Ravé ◽  
Anthony P. Turner ◽  
Shaun M. Phillips
Keyword(s):  
Body Composition ◽  
Body Force ◽  
Swimming Performance ◽  
Down's Syndrome ◽  
Down’S Syndrome ◽  
Training Intervention ◽  
Countermovement Jump ◽  
Swimming Training ◽  
Jump Performance ◽  
Swim Performance

Swimming training programs may help to limit declines in cardiovascular conditioning, muscle strength, mobility and social functioning in individuals with Down’s Syndrome (DS): (1) Background: This study aims to analyze the effects of a periodized swimming training program on swimming speed, lower body force and power and body composition in a group of swimmers with DS; (2) Methods: Nine swimmers with DS (2 men and 7 women; aged 21–30 years-old) completed an 18-week periodized swimming program. The swimmers were assessed, pre and post-training, for 25 m, 50 m and 100 m freestyle swim performance, countermovement jump performance and body composition; (3) Results: Significant and large improvements in 25 m (mean −6.39%, p < 0.05, d = 1.51), 50 m (mean −4.95%, p < 0.01, d = 2.08) and 100 m (mean −3.08%, p < 0.05, d = 1.44) freestyle performance were observed following training, with no significant changes in body composition or consistent changes in jump performance (although a large mean 14.6% decrease in relative peak force, p < 0.05, d = 1.23) (4) Conclusions: A periodized 18-week training intervention may improve swimming performance in a small group of trained swimmers with DS, with less clear changes in jump performance or body composition. This program provides a training profile for coaches working with swimmers with DS and a platform for further research into the benefits of swimming training with this under-represented population.

A Resistance Training Intervention for Adults With Intellectual Disability in the Community: A Pilot Randomized Clinical Trial

2021 ◽  
pp. 1-23
Author(s):  
Iva Obrusnikova ◽  
Albert R. Cavalier ◽  
Richard R. Suminski ◽  
Ashleigh E. Blair ◽  
Cora J. Firkin ◽  
...  
Keyword(s):  
Intellectual Disability ◽  
Resistance Training ◽  
Muscular Strength ◽  
Functional Performance ◽  
Analysis Of Covariance ◽  
Training Intervention ◽  
Control Group ◽  
Community Based ◽  
Resistance Training Exercise ◽  
Experimental Group

Adults with an intellectual disability have significantly lower levels of fitness compared with the general population. This study examined the effects of a 13-week theoretically guided, community-based, multicomponent resistance training intervention, resistance training for empowerment, on muscular strength and independent functional performance in 24 adults with an intellectual disability, aged 18–44 years. Twelve participants were randomly allocated to an experimental group and 12 to an active control group. An analysis of covariance revealed that the experimental group had significantly greater increases (p < .05) on the chest press and leg press one-repetition maximum tests and the 6-min walk test from the baseline to postintervention compared with the control group. The experimental group correctly and independently performed a significantly greater number of steps of resistance training exercise tasks than the control group. Marginal significance and large effect sizes were found for the prone plank test and the stair climb test. The resistance training for empowerment was effective in promoting muscular strength and independent functional performance among adults with an intellectual disability.

scholarly journals Effect of Resistance Training Along with Curcumin Supplementation on Expression of Some Regulator Genes Associated with Cardiac Muscle Structure in Obese Rats

Thrita ◽  
2020 ◽  
Vol 9 (2) ◽  
Author(s):  
Atefeh Rauofi ◽  
Sirous Farsi ◽  
Seyed Ali Hosseini
Keyword(s):  
Physical Activity ◽  
Resistance Training ◽  
Cardiac Muscle ◽  
Muscle Atrophy ◽  
Synergistic Effects ◽  
Training Group ◽  
Control Group ◽  
Gene Expressions ◽  
Obese Rats ◽  
Reduced Physical Activity

Background: Reduced physical activity can cause obesity and metabolic syndrome, leading to fibrosis in cardiac muscles and premature cardiac aging. Physical activity, along with herbal supplements, can have a synergistic effect on preventing cardiac muscle proteolysis. Objectives: In this study, the effects of curcumin and resistance training were assessed on cardiac muscle atrophy in obese rats. Methods: Twenty-four male Sprague rats were categorized into four groups, including the placebo, resistance training, curcumin, and resistance training + curcumin. Resistance training was performed three times a week with three sets in each session, repeated five times for eight weeks. During this time, 150 mg/kg curcumin was administered through gavage. Twenty-four hours after finishing resistance training, surgery was performed on the cardiac muscle, and gene expressions of PGC1-α, FOXO1, Murf-1, Atrogin, Collagen1, and Collagen 3 were assessed with real-time PCR. Results: The expression of PGC1-α and FOXO1 genes in both resistance training and resistance training+curcumin groups significantly increased and decreased, respectively, compared to the control group (P = 0.001). The MuRF1 expression in the curcumin+resistance training group decreased significantly (P = 0.013) compared to the placebo and curcumin groups. The expression of collagen type 1 and type 2 in all the three treatment groups had significant decreases compared to the placebo group (P < 0.05). Conclusions: Considering the results of this study, resistance training and curcumin supplement each alone can prevent cardiac muscle atrophy. However, the simultaneous use of curcumin supplement and resistance training can lead to synergistic effects.

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