Efeitos agudos no desempenho do salto vertical após o agachamento com banda elástica de joelho

Gomes, Willy Andrade; Silva, Josinaldo Jarbas da; Soares, Enrico Gori; Serpa, Érica Paes; Corrêa, Daniel Alves; Vilela, Guanis de Barros; Marchetti, Paulo Henrique

doi:10.1590/1517-869220152104146982

Cited by 5 publications

(4 citation statements)

References 17 publications

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“…More specifically, although squat-specific Wilks coefficient and 1RM failed to reveal any significance or correlations, when associated to bench press-specific Wilks coefficient and 1RM, SpO 2 demonstrated a small negative correlation. The latter has been indicated by numerous studies elucidating that tighter joint-based equipment augment performance, wherein this may potentially be due to the above mentioned ostensible increase in both objective and subjective stability (17,18,20,21,25,37). Conversely, body weight was singularly the only significant predictor in estimating our participants' bench press performance.…”

Section: Discussionmentioning

confidence: 64%

A Cross-Sectional Examination of Wrist Wrap Use Prevalence and Characterization for Ergogenic Purposes in Actively Competing Powerlifters

Harris

Cardaci

Cintineo

et al. 2023

Int'l Journal of Strength & Conditioning

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Purpose: Wrist wraps are regularly incorporated by competitive powerlifters, but several product-specific variations may influence any potential ergogenic benefits. In addition, the prevalence of athletic wrist wrap use is hitherto undescribed. Methods: Seventy actively competing powerlifters (n=70; 27±6y) who competed in the last two years were randomly recruited at sanctioned meets, whereby wrist wrap use descriptive data (wrap style [F or S], wrap length, and events used), wrap tightness (assessed via pulse oximeter-detected oxygen saturation (SpO2) and subjective discomfort [Borg CR10+]), as well as post-meet bench press one repetition maximum (1RM) were collected. Wrist wrap use prevalence data (wrap style, wrap length, and events used) were compared across TX, NC/SC, and CA regions, along with any potential correlations between both region-collapsed wrapped SpO2 and bench press. Finally, predictors of bench press 1RM (weight [kg], age [y], stiff wrap, wrap length, wrapped discomfort [WCR10+], and WSpO2) were assessed using linear regression, whereby all aforementioned statistical analyses were set at a significance level of p<.05. Results: Analyses failed to detect any significant regional differences in wrap style, length, or events used (p>0.05). Moreover, linear regression analysis revealed a significant effect (r2= 0.851, p = 0.02) where weight solely predicted bench press 1RM (p = 0.0433). Conclusions: Although we failed to detect any significant wrist wrap relationships, actively competing powerlifters nonetheless prominently utilize wraps across the regions assessed. Therefore, the potential for wrist wraps to augment bench press performance warrants further elucidation in a controlled, standardized investigation.

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Section: Discussionmentioning

confidence: 64%

A Cross-Sectional Examination of Wrist Wrap Use Prevalence and Characterization for Ergogenic Purposes in Actively Competing Powerlifters

Harris

Cardaci

Cintineo

et al. 2023

Int'l Journal of Strength & Conditioning

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“…Article received on 07/13/2016 accepted on 03/22/2018 DOI: http://dx.doi.org/10.1590/1517-869220182404166615 that may have resulted in neural inhibition of muscle activation. Farther, Gomes et al, 8 compared the effect of performing vertical jumps with countermovement (SCM) after performing the half-squat exercise with EKW (3 repetitions at 90% of 1RM). The results showed a reduction of 15% in the muscular activation of the VL during SCM after the accomplishment of the half-squat with EKW.…”

Section: Descriptores: Fenómenos Biomecánicos; Desempeno Atlético; Fumentioning

confidence: 99%

Effects of Elastic Wrap on Muscle Activity and Isometric Force of Knee Extensors

Freitas

Gomes

Marchetti

2018

Rev Bras Med Esporte

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Introduction: The elastic knee wrap (EKW) is a device used by powerlifters, weightlifters and subjects undergoing strength training with the aim of stabilizing the knee joint and increasing the development of strength (carryover effect). Objective: To compare the effects of elastic knee wrap use on muscular activity of the vastus lateralis (VL) and on knee extension force during maximum voluntary isometric contraction (MVIC) on the knee extensor chair. Methods: The study included 18 healthy male strength trained (>1 year) subjects (age: 25.56 ± 4.84 years, total body mass: 81.83 ± 8.73 kg, height: 176 cm ± 5.17). Three five-second maximum voluntary isometric contractions (MVICs) of the knee extensors were performed with a 10-second interval between attempts, for each experimental condition: control (C), with elastic knee wrap (EKW), and with tensor (T). The performance of the knee extensors and VL muscle activity were evaluated. A repeated measures ANOVA was used to compare the dependent variables (carryover, peak force, IEMG and Impulse). Results: For carryover, the use of EKW presented a higher value (74.21%) than the control condition (p <0.001, d = 0.96) and was 79.37% higher than the tensor (p <0.001, d = 0.97). Peak force was 12.2% higher in condition C compared to EKW (p = .018, d = 0.71). For impulse, the control condition presented an increase of 8% compared to EKW use (p = .015, d = 0.62). No significant differences were observed for IEMG. Conclusion: Elastic knee wrap use increased strength production capacity during knee extension. The removal of the mechanical effect originating from carryover during MVIC reduces the strength performance of the knee extensors, but not the muscular activation of the VL. Level of Evidence I; Therapeutic studies -Investigation of treatment results.

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“…Dentre outros, os efeitos dos alongamentos estáticos (AE), alongamento dinâmico (AD), de facilitação neuromuscular proprioceptiva (FNP) e até mesmo sobre os efeitos das interferências musculares no salto, bem como a fosforilação da cadeia leve reguladora de miosina, a afinidade ao cálcio (Ca2+) à troponina e ao aumento do recrutamento. [14][15][16] Fatores como o índice de massa corporal (IMC), porcentagem de gordura e o impacto do estado psicológico do atleta devem ser levados em conderação, uma vez que podem afetar negativamente a potência do salto. 6,17,18 Portanto, compreender os mecanismos que sustentam o aumento ou a perda de força subsequente a uma técnica de alongamento permite esclarecer as diferenças de resultados entre as pesquisas científicas e o desenvolvimento de estratégias contemporâneas.…”

Section: Introductionunclassified

Estratégias Sobre Os Tipos De Alongamentos Que Precedem O Salto Vertical

Barboza

Fleig

Nascimento

2024

Rev Bras Med Esporte

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RESUMO Design do estudo: identificar uma melhor estratégia de alongamento estático (AE), Alongamento dinâmico (AD) e facilitação neuromuscular proprioceptiva (FNP) em relação ao rendimento de suas aplicações no salto vertical contramovimento (SCM). Desenvolveu-se uma revisão sistemática da Literatura nos meses de maio e junho de 2021, nas bases de dados Pubmed/MEDLINE, Scopus, LILACS, SPORTDiscus e Embase. Utilizou-se o checklist PRISMA-2020. Para análise de risco de viés utilizou-se a escala do Cochrane handbook e a escala de Downs and Black. 17 estudos foram incluídos para análise qualitativa. O recrutamento da Unidade Motora e a sua frequência de estimulações favorecem os fatores neurais e o desempenho da força muscular durante a contração. Investigações circunstanciadas são necessárias sobre os fatores neurais que modificam as respostas reflexas e controle motor considerando as características biológicas e deformações plásticas. O AE é um preditor negativo para o desempenho do salto vertical (SV) e, as melhorias são reduzidas quando o tempo de alongamento é superior a 60 segundos, e quando associado a FNP não revelou resultados significativos. Sugere-se a utilização do AE antes do AD em períodos curtos de 20 segundos e não mais que 60 segundos na pré-atividade ao SV. Nos alongamentos curtos a gama de movimentos aumentou tanto no joelho quanto no quadril e, a musculatura isquiotibial, quando em tensão, é desfavorável em esportes que utilizam frequentemente o SV. Portanto, a FNP com a utilização da técnica que envolve um processo de contrair e relaxar deve ser investigada de forma isolada e específica preconizando o grupo antagonista. Desta forma, diminuir a força do antagonista pode ser favorável para o ganho de altura, embora estudos atualizados sejam necessários para minimizar os preditores de menor estabilidade e/ou controle muscular. Nível de evidência II; Estudo de Revisão Sistemática.

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Efeitos agudos no desempenho do salto vertical após o agachamento com banda elástica de joelho

Cited by 5 publications

References 17 publications

A Cross-Sectional Examination of Wrist Wrap Use Prevalence and Characterization for Ergogenic Purposes in Actively Competing Powerlifters

A Cross-Sectional Examination of Wrist Wrap Use Prevalence and Characterization for Ergogenic Purposes in Actively Competing Powerlifters

Effects of Elastic Wrap on Muscle Activity and Isometric Force of Knee Extensors

Estratégias Sobre Os Tipos De Alongamentos Que Precedem O Salto Vertical

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