Maximum and explosive strength in Brazilian kickboxing athletes: asymmetries between limbs and the relationship with the single jump distance

Laett, Conrado Torres; Silva, Rogério; Cossich, Cindy F. S.; Monteiro, Walace David; Barcellos, Luciane; Cossich, Victor Rodrigues Amaral

doi:10.1007/s11332-022-01024-w

Cited by 4 publications

(5 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Although RTD is recognized as an important variable regarding neuromuscular function [1,2] and is highly associated with human performance [14][15][16]22], the need for specialized equipment and personnel remains a barrier to widespread adoption for field-based measures [2,31]. This limitation extends beyond sports and athletic contexts to clinical settings, where deep neuromuscular assessments could benefit populations such as seniors [40,41].…”

Section: Discussionmentioning

confidence: 99%

“…To minimize the dampening effect occurring at the interface between the shin and the lever, and simultaneously to avoid pain, a standard soccer hard shin guard was used [1,22]. Our group has used this same procedure in previous investigations [1,10,16,22]. An accelerometer (EMG 830c ® , EMG System do Brasil, São José dos Campos, SP, Brazil) was placed on the shin guard to measure ACC signals in the x, y, and z axes (measured in g, Figure 1).…”

Section: Explosive Isometric Contractions (Strength and Acceleration ...mentioning

confidence: 99%

“…Consequently, a higher RTD indicates a faster and more efficient neuromuscular response, determined by motor unit activation rate (i.e., higher neural drive increases the explosive capacity) and muscle morphology (i.e., muscle thickness and muscle architecture) [1,[10][11][12]. RTD extends our capacity to evaluate the maximal force-generating capacity and plays a pivotal role in activities requiring quick muscle contractions and short-duration execution, such as jumping, sprinting, or weightlifting [13][14][15][16][17], as it reflects the muscles' capability to swiftly generate force during the very initial phase of muscle contraction [1,2]. Also, RTD is often associated with enhanced athletic performance, injury prevention, and return to sport readiness [18][19][20][21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

AI-Enhanced Prediction of Peak Rate of Torque Development from Accelerometer Signals

Cossich,

Katz,

Laett

2024

Applied Sciences

Self Cite

View full text Add to dashboard Cite

This study explores the use of accelerometer signals as the predictors of Rate of Torque Development (RTD) using an artificial neural network (ANN) prediction model. Sixteen physically active men participated (29 ± 5 years), performing explosive isometric contractions while acceleration (ACC) signals were measured. The dataset, comprising ACC signals and corresponding RTD values, was split into training and testing (70–30%) sets for ANN training. The trained model predicted the peak RTD values from the ACC signal inputs. The measured and predicted peak RTD values were compared, with no significant differences observed (p = 0.852). A strong linear fit (R² = 0.81), ICC = 0.94 (p < 0.001), and a mean bias of 30.8 Nm/s demonstrated almost perfect agreement between measures. The study demonstrates the feasibility of using accelerometer data to predict peak RTD, offering a portable and cost-effective method compared to traditional equipment. The ANN prediction model provides a reliable means of estimating RTD from ACC signals, potentially enhancing accessibility to RTD assessment in sports and rehabilitation settings. The findings support the use of ANN models for predicting RTD, highlighting the potential of AI in developing performance analysis tools.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Explosive Isometric Contractions (Strength and Acceleration ...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

AI-Enhanced Prediction of Peak Rate of Torque Development from Accelerometer Signals

Cossich,

Katz,

Laett

2024

Applied Sciences

Self Cite

View full text Add to dashboard Cite

show abstract

“…Apesar de ser um artigo de revisão reconhecemos potenciais limitação como os critérios de inclusão serem somente artigos publicados em português e em revistas científicas nacionais, alguns estudos brasileiros publicados em inglês e os publicados em português, porém em periódicos internacionais foram excluídos (DA GAMA et al, 2018;DUARTE et al, 2021;DUARTE et al, 2023;LAETT et al, 2022;VIDAL;SANDI, 2020). Assim, não abrangendo todos os estudos com o kickboxing produzidos no Brasil.…”

Section: Impraf = Inventário De Motivação à Prática Regular De Ativid...unclassified

Perfil da produção científica brasileira com o kickboxing

Da Silva Duarte,

Lopes

2023

Sci. Electronic Arch

View full text Add to dashboard Cite

Introdução: o kickboxing é um dos esportes de combate mais conhecidos, tendo suas produções científicas importantes para trazer informações que poderão auxiliar os treinadores, atletas e outros pesquisadores. Objetivo: analisar a produção científica brasileira (artigos, dissertações e teses) com a modalidade kickboxing. Métodos: foram feitas buscas nos partais de indexações online: Scielo, Lilacs, Google Acadêmico, Bireme, Portal de Periódicos da Capes e Catálogo de Teses & Dissertações – CAPES com a palavra-chave “kickboxing”. Resultados: No total foram encontrados vinte e três estudos e após serem aplicados os critérios de inclusão e exclusão sobraram seis estudos, sendo cinco artigos e uma dissertação. A área temática com maior quantidade de produção foi a biomecânica com duas pesquisas e o Estado mais produtivo foi o Paraná. Conclusão: A produção científica brasileira com o kickboxing são poucas, havendo a necessidade de mais exploração por parte dos pesquisadores brasileiros.

show abstract

“…Many researchers have addressed the issue of helmet use in combat sports [ 34 , 35 ], but comprehensive analyses comparing fights with and without helmets are lacking. Recent studies in kickboxing focus mainly on the analysis of physiological variables during fights [ 36 , 37 , 38 , 39 ] and the implementation of innovative training methods [ 40 , 41 , 42 , 43 ]. It is worth noting that a comparison of the number of blows to the head in fights with and without a helmet could encourage a more in-depth verification.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Head Strike Incidence under K1 Rules of Kickboxing with and without Helmet Protection—A Pilot Study

Rydzik

Wąsacz

Ambroży

et al. 2023

IJERPH

View full text Add to dashboard Cite

Background: Kickboxing is a combat sport that encompasses various forms of competition. K1 kickboxing is conducted without any restrictions on the force of strikes, and the bout can end prematurely through a knockout. Headgear has been introduced in amateur kickboxing to safeguard the head. However, scientific studies have shown that despite their use, serious head injuries can still occur. The aim of this study was to evaluate the temporal structure of the bout by calculating the number of head strikes in K1 kickboxing bouts with and without headgear. Methods: Thirty K1 kickboxing bouts were analyzed, with 30 participants included in the study. The fights were conducted according to the World Association Kickboxing Organization (WAKO) rules. The bouts consisted of three rounds of 2 min each, with a 1 min break between rounds. Sparring pairs were arranged according to weight categories. The first bouts were conducted without headgear, and two weeks later, the fights were repeated with WAKO-approved headgear. The number of head strikes was assessed retrospectively by analyzing video recordings of the bouts, categorizing strikes as hand or foot strikes, and differentiating between strikes that hit the head directly or indirectly. Results: The results showed statistically significant differences between bouts with and without headgear in terms of the number of strikes to the head (p = 0.002), strikes directly to the head (p < 0.001), all hand strikes to the head (p = 0.001), hand strikes directly to the head (p = 0.003), and foot strikes directly to the head (p = 0.03). Higher values were observed in bouts with headgear. Conclusions: Headgear increases the probability of direct strikes to the head. Therefore, it is important to familiarize kickboxers with the use of headgear in their sport to minimize head injuries.

show abstract

Maximum and explosive strength in Brazilian kickboxing athletes: asymmetries between limbs and the relationship with the single jump distance

Cited by 4 publications

References 40 publications

AI-Enhanced Prediction of Peak Rate of Torque Development from Accelerometer Signals

AI-Enhanced Prediction of Peak Rate of Torque Development from Accelerometer Signals

Perfil da produção científica brasileira com o kickboxing

Comparison of Head Strike Incidence under K1 Rules of Kickboxing with and without Helmet Protection—A Pilot Study

Contact Info

Product

Resources

About