Eccentric Overload Training and Injury Prevention during Running

This study aimed to evaluate the differences in power production between movement phases (i.e., concentric and eccentric) during the execution of resistance exercises with a flywheel device, differentiating between execution regimes (i.e., bilateral, unilateral dominant leg and unilateral non-dominant leg). Twenty young elite soccer players (U−17) performed two sets of six repetitions of the bilateral half-squat (inertia 0.025 kg·m−2) and the lateral-squat exercise (inertia 0.010 kg·m−2) on a flywheel device. During the testing sessions, mean and peak power in concentric (MPcon) and eccentric (MPecc) phases were recorded. The non-dominant leg showed higher values in all power variables measured, although substantial differences were only found in MPecc (ES = 0.40, likely) and PPcon (ES = 0.36, possibly). On the other hand, for both exercises, MPcon was higher than MPecc (ES = −0.57 to −0.31, possibly/likely greater), while only PPecc was higher than PPcon in the dominant lateral-squat (ES = 0.44, likely). These findings suggest that young soccer players have difficulty in reaching eccentric-overload during flywheel exercises, achieving it only with the dominant leg. Therefore, coaches should propose precise preventive programs based on flywheel devices, attending to the specific characteristics of each limb, as well as managing other variables to elicit eccentric-overload.

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Effect Of Eccentric Overload Training On Change Of Direction Performance: A Meta-analysis

Medicine & Science in Sports & Exercise ◽

10.1249/01.mss.0000686924.64009.f0 ◽

2020 ◽

Vol 52 (7S) ◽

pp. 1042-1042

Author(s):

Ruidong Liu ◽

Jianxiu Liu

Keyword(s):

Meta Analysis ◽

Change Of Direction ◽

Overload Training ◽

Eccentric Overload

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Eccentric Overload Training

Strength and Conditioning Journal ◽

10.1519/ssc.0000000000000351 ◽

2018 ◽

Vol 40 (2) ◽

pp. 78-81 ◽

Cited By ~ 3

Author(s):

Brad Jon Schoenfeld ◽

Jozo Grgic

Keyword(s):

Overload Training ◽

Eccentric Overload

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Eccentric-Overload Training in Team-Sport Functional Performance: Constant Bilateral Vertical Versus Variable Unilateral Multidirectional Movements

International Journal of Sports Physiology and Performance ◽

10.1123/ijspp.2016-0251 ◽

2017 ◽

Vol 12 (7) ◽

pp. 951-958 ◽

Cited By ~ 41

Author(s):

Oliver Gonzalo-Skok ◽

Julio Tous-Fajardo ◽

Carlos Valero-Campo ◽

César Berzosa ◽

Ana Vanessa Bataller ◽

...

Keyword(s):

Functional Performance ◽

Vertical Jump ◽

Group Analysis ◽

Team Sport ◽

Vertical Movement ◽

Jump Test ◽

Vertical Jumping ◽

Overload Training ◽

Lateral Jumps ◽

Eccentric Overload

Purpose:To analyze the effects of 2 different eccentric-overload training (EOT) programs, using a rotational conical pulley, on functional performance in team-sport players. A traditional movement paradigm (ie, squat) including several sets of 1 bilateral and vertical movement was compared with a novel paradigm including a different exercise in each set of unilateral and multi-directional movements.Methods:Forty-eight amateur or semiprofessional team-sport players were randomly assigned to an EOT program including either the same bilateral vertical (CBV, n = 24) movement (squat) or different unilateral multidirectional (VUMD, n = 24) movements. Training programs consisted of 6 sets of 1 exercise (CBV) or 1 set of 6 exercises (VUMD) × 6–10 repetitions with 3 min of passive recovery between sets and exercises, biweekly for 8 wk. Functional-performance assessment included several change-of-direction (COD) tests, a 25-m linear-sprint test, unilateral multidirectional jumping tests (ie, lateral, horizontal, and vertical), and a bilateral vertical-jump test.Results:Within-group analysis showed substantial improvements in all tests in both groups, with VUMD showing more robust adaptations in pooled COD tests and lateral/horizontal jumping, whereas the opposite occurred in CBV respecting linear sprinting and vertical jumping. Between-groups analyses showed substantially better results in lateral jumps (ES = 0.21), left-leg horizontal jump (ES = 0.35), and 10-m COD with right leg (ES = 0.42) in VUMD than in CBV. In contrast, left-leg countermovement jump (ES = 0.26) was possibly better in CBV than in VUMD.Conclusions:Eight weeks of EOT induced substantial improvements in functional-performance tests, although the force-vector application may play a key role to develop different and specific functional adaptations.

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Efectos de un entrenamiento con sobrecarga excéntrica sobre la fuerza, la capacidad funcional y la masa muscular en personas mayores de 65 años = Effects of eccentric-overload training on strength, functional fitness and muscle mass in elder people aged over 65

10.18002/10612/3671 ◽

2014 ◽

Author(s):

Santiago Adolfo Arboleda Franco

Keyword(s):

Muscle Mass ◽

Functional Fitness ◽

Overload Training ◽

Eccentric Overload ◽

Elder People

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The effects of unilateral and bilateral eccentric overload training on hypertrophy, muscle power and COD performance, and its determinants, in team sport players

PLoS ONE ◽

10.1371/journal.pone.0193841 ◽

2018 ◽

Vol 13 (3) ◽

pp. e0193841 ◽

Cited By ~ 28

Author(s):

Francisco Javier Núñez ◽

Alfredo Santalla ◽

Irene Carrasquila ◽

Jose Antonio Asian ◽

Jose Ignacio Reina ◽

...

Keyword(s):

Muscle Power ◽

Team Sport ◽

Overload Training ◽

Eccentric Overload

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The Effects of Different Types of Eccentric Overload Training on Strength, Speed, Power and Change of Direction in Female Basketball Players

Journal of Functional Morphology and Kinesiology ◽

10.3390/jfmk5030050 ◽

2020 ◽

Vol 5 (3) ◽

pp. 50

Author(s):

Joey O Brien ◽

Declan Browne ◽

Des Earls

Keyword(s):

Training Stimulus ◽

Post Intervention ◽

Basketball Players ◽

Squat Jump ◽

Change Of Direction ◽

Back Squat ◽

Counter Movement Jump ◽

Overload Training ◽

Post Hoc ◽

Eccentric Overload

The aim of this study was to investigate the effect of two types of eccentric (ECC) overload training on strength, speed, power and change of direction in female basketball players. Twenty amateur basketball players (mean ± SD: age: 23.67 ± 6.05 years; height: 1.73 ± 0.05 m; body mass: 80.28 ± 17.67 kg) participated in a randomized trial. The players performed either flywheel inertial training (FIT) (n = 11) or tempo ECC training (TET) (n = 9) for 4 weeks, performing two sessions weekly. Performance characteristics, one repetition back squat (1RM), counter-movement jump (CMJ), squat jump (SJ), 10-metre sprint (10 m), change of direction (COD) and sit and reach flexibility (S&R) were tested pre and post intervention. Post-hoc testing revealed significant improvements in the FIT group for 1RM (p ≤ 0.001; ES = 0.59), 10 m (p = 0.003; ES = −0.54) and CMJ (p ≤ 0.001; ES = 1.04), while significant improvements were revealed in the TET group for 1RM (p = 0.007; ES = 0.71) and S&R (p ≤ 0.001; ES = 0.58). In conclusion, both FIT and TET groups demonstrated a positive training stimulus for increasing muscular strength. FIT may produce superior adaptions in CMJ and 10-m sprint, while TET may produce superior adaptions in S&R. Neither group achieved increases in either SJ or COD.

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