Potentiating Effects of Accentuated Eccentric Loading Are Dependent Upon Relative Strength

Merrigan, Justin J.; Tufano, James J.; Jones, Margaret

doi:10.1519/jsc.0000000000004010

Cited by 7 publications

(30 citation statements)

References 35 publications

(63 reference statements)

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“…In prior bench press literature, AEL using 120% 1-RM decreased that repetition's concentric velocity during concentric loads of 50% and 65% 1-RM [2]. Prior research implementing AEL using 120% 1-RM in the bench press and the back squat also found differences in the effectiveness of AEL depending on the concentric load [2,3]. These same studies also found a decrease in concentric velocity during the AEL repetition with 120% 1-RM; thus, the heavier eccentric loading may reduce the explosive abilities in the subsequent concentric phase [2,3].…”

Section: Discussionmentioning

confidence: 78%

“…This may suggest that the interaction between eccentric loads (110% vs. 100%) and concentric loads (30-80%) is necessary to consider. In prior bench press literature, AEL using 120% 1-RM decreased that repetition's concentric velocity during concentric loads of 50% and 65% 1-RM [2]. Prior research implementing AEL using 120% 1-RM in the bench press and the back squat also found differences in the effectiveness of AEL depending on the concentric load [2,3].…”

Section: Discussionmentioning

confidence: 94%

“…Others found no change in concentric velocity when using AEL with 105% and concentric loads of 80% 1-RM [6]. Yet, AEL has been found to alter mechanics during the bench press which likely contributed to the loss in concentric velocity noted in AEL under the following eccentric to concentric loading patterns; 100%:30% 1-RM and 100%:80% 1-RM [8] and 120%:50% and 120%:65% [2]. Thus, further research is warranted to investigate AEL using multiple eccentric loads across a spectrum of concentric loads to identify the interaction of phasic loading parameters.…”

Section: Introductionmentioning

confidence: 99%

“…One method of acutely enhancing concentric velocity is accentuated eccentric loading (AEL), which is implemented by overloading the eccentric action during exercises involving the complete stretch shortening cycle (i.e., eccentric to concentric action) [1]. During the bench press exercise, AEL has demonstrated efficacy in potentiating acute performances compared to traditional loading (TRAD) where the eccentric load is the same as the concentric load [2][3][4][5][6]. However, divergent outcomes have been demonstrated, which may be partly attributed to differences in phasic loading and other variations between AEL protocols [2,4,6,7].…”

Section: Introductionmentioning

confidence: 99%

“…It has been speculated that stronger individuals are more capable of handling the heavier and more rapid movements during AEL [10]. As such, individuals with greater levels of relative strength have been less negatively affected by AEL [2]. Thus, exploring the loading schemes of AEL is likely best suited in resistance trained individuals that may better handle the excessive eccentric loading during AEL.…”

Section: Introductionmentioning

confidence: 99%

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Accentuated Eccentric Loading in the Bench Press: Considerations for Eccentric and Concentric Loading

Taber

Morris

Wagle³

et al. 2021

Sports

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This study examined the effects of accentuated eccentric loading (AEL) on bench press velocities across a spectrum of concentric and eccentric loads. Ten strength trained men (bench press one-repetition maximum (1-RM): 124.3 ± 19.4 kg; relative strength ratio: 1.5 ± 0.2 kg∙body mass−1) participated. Subjects completed bench press repetitions using concentric loads from 30% to 80% 1-RM in 10% increments in each experimental session. The AEL protocols were implemented using 100% (AEL100) and 110% 1-RM (AEL110) loads during the eccentric action, while the eccentric load remained the same as the concentric for traditional loading (TRAD). Multilevel models analyzed the effects of each AEL protocol on concentric velocities across concentric loads (p < 0.05). Faster concentric velocities were observed at 30% 1-RM and 80% 1-RM with AEL100 compared to TRAD (p ≤ 0.05) but this effect was reduced for individuals moving the barbell through a greater displacement. Additionally, AEL110 presented a greater change in velocity from 30% to 80% 1-RM than TRAD (p ≤ 0.05). The AEL100 protocol resulted in faster concentric velocities throughout concentric loads of 30–80% 1-RM, but AEL110 may have been too great to elicit consistent performance enhancements. Thus, the efficacy of AEL at various concentric loads is dependent on the eccentric loading and barbell displacement.

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Section: Discussionmentioning

confidence: 78%

Section: Discussionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Accentuated Eccentric Loading in the Bench Press: Considerations for Eccentric and Concentric Loading

Taber

Morris

Wagle³

et al. 2021

Sports

Self Cite

View full text Add to dashboard Cite

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Practical Application of Traditional and Cluster Set Configurations Within a Resistance Training Program

Nagatani

Haff

Guppy

et al. 2021

Strength &Amp; Conditioning Journal

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Altering set configurations during a resistance training program can provide a novel training variation that can be used to modify the external and internal training loads that induce specific training outcomes. To design training programs that better target the defined goal(s) of a specific training phase, strength and conditioning professionals need to better understand how different set configurations affect the training adaptations that result from resistance training. Traditional and cluster set structures are commonly implemented by strength and conditioning professionals as part of an athlete's resistance training program. The purpose of this review is to offer examples of the practical implementation of traditional and cluster sets that can be integrated into a periodized resistance training program.

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Changes in the cortisol level under the influence of physical exertion in patients with hypertension and in practically healthy individuals

Dronyk

Dutka

Chmyr

et al. 2023

Mìžnarodnij endokrinologìčnij žurnal

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Background. Today, there are difficulties with the prevention and diagnosis of early stages of hypertension, especially in active and able-bodied young people. Among the factors that potentiate an increase in blood pressure, one of the components is chronic stress, which a person often faces in modern society. The purpose of study is to evaluate and compare blood cortisol and plasma malondialdehyde content in healthy individuals and in patients with stage II hypertension before and after dosed exercises. Materials and methods. Thirty patients with stage II hypertension and 10 practically healthy persons were examined. Subjects performed two-stage physical exercises on a bicycle ergometer with an intensity corresponding to 50 and 75 % of the appropriate maximum oxygen consumption of the body. The duration of the load was equal to 5 minutes at each stage with a three-minute rest between them. Blood was taken from the ulnar vein before cycling ergometry and 5 minutes after it. Blood cortisol and plasma malondialdehyde content were determined in patients before and after exercises. Results. A significant increase in cortisol content after exercises was noted in healthy individuals against the background of some decrease in patients with hypertension. It has been suggested that since people with high blood pressure already have an elevated initial level of cortisol, their threshold of stress sensitivity to physical exertion is increased. Submaximal bicycle ergometric load does not lead to an increase in blood cortisol levels in hypertensive patients. Conclusions. The background higher level of cortisol in individuals with hypertension does not increase under the influence of submaximal dosed exercises. An increase in the level of malondialdehyde can be considered a marker of the degree of stress for assessing the power of physical exertion. In view of the above, it can be stated that the activation of the sympathoadrenal system under the influence of emotional stress leads to an increase in blood pressure. There is sufficient evidence that psycho-emotional stress is a cause of white-coat hypertension and hypertension in the workplace.

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Potentiating Effects of Accentuated Eccentric Loading Are Dependent Upon Relative Strength

Cited by 7 publications

References 35 publications

Accentuated Eccentric Loading in the Bench Press: Considerations for Eccentric and Concentric Loading

Accentuated Eccentric Loading in the Bench Press: Considerations for Eccentric and Concentric Loading

Practical Application of Traditional and Cluster Set Configurations Within a Resistance Training Program

Changes in the cortisol level under the influence of physical exertion in patients with hypertension and in practically healthy individuals

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