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 4 publications

(2 citation statements)

References 17 publications

(19 reference statements)

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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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Strategies Types on Precedent Vertical Jump Stretching

Barboza

Fleig

Nascimento

2024

Rev Bras Med Esporte

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Study design: identify a better strategy for static stretching (SS), dynamic stretching (DS), and proprioceptive neuromuscular facilitation (PNF) concerning the performance of their applications in countermovement vertical jump (CVJ). A systematic literature review was conducted in May and June 2021 in the Pubmed/MEDLINE, Scopus, LILACS, SPORTDiscus, and Embase databases. The PRISMA-2020 checklist was used. The Cochrane handbook scale and the Downs and Black scale were used for risk of bias analysis. Seventeen studies were included for qualitative analysis. Motor Unit recruitment and its stimulation frequency favor neural factors and muscle strength performance during contraction. Detailed investigations are necessary on the neural factors that modify the reflex responses and motor control, considering the biological characteristics and plastic deformations. The SS is a negative predictor of vertical jump (VJ) performance. The improvements are reduced when the stretching time is longer than 60 seconds, and when associated with PNF, did not reveal significant results. Using the SS before the DS in short periods of 20 seconds and no more than 60 seconds in the pre-activity to the VJ is suggested. In short stretches, the ROM increased both in the knee and the hip, and the hamstring muscles, when in tension, are unfavorable in sports that frequently use the VJ. Therefore, PNF using the technique that involves a process of contracting and relaxing must be investigated in an isolated and specific way, advocating the antagonist group. Thus, decreasing antagonist strength may be favorable for height gain, although contemporary studies are needed to minimize lower stability and muscle control predictors. Level of Evidence II; Systematic Review Study.

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

Cited by 4 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

Strategies Types on Precedent Vertical Jump Stretching

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