Effects of Fatigue in Lower Back Muscles on Basketball Jump Shots and Landings

Abstract

Introduction:The aim of this study was to explore effects of fatigue in lower back muscles on the performance of countermovement jumps (CMJ), jump shots (JS) and landing impact.Methods: Twelve male healthy collegiate basketball players (age: 22.8 ± 2.7 yrs, stature: 178.0 ± 5.1 cm, body mass: 74.5 ± 6.8 kg) volunteered to participate in this study. Data were collected utilizing a 3D motion analysis system, force plate, and surface electromyography. Field-goal percentage, the lowest point of the center of mass (CoM), the angles of joints during taking off phase and landing, and the electromyography parameters of the rectus femoris, erector spinae lumbalis, and of the lower limbs when performing CMJ and JS were recorded. Lower back muscle fatigue intervention was introduced and followed by a post-test to explore the effects of fatigue in the lower back muscles. Statistical analysis was performed using pairedsamples t-test.Results: After lower back muscle fatigue, field-goal percentages dropped, and lowest point of CoM was increased during JS. Ankle plantar flexion of the hopping leg during CMJ and JS increased, and their knee flexion angles of the hopping leg were reduced when landing. CMJ and JS changed the contribution ratio of both legs after low back fatigue.Conclusions: Temporary low back muscles fatigue decreased the athletes' performance and causes a change in landing strategy.

The Effects of 5 km Interval Running on the Anterior Cruciate Ligament Strain and Biomechanical Characteristic of the Knee Joint: Simulation and Principal Component Analysis

“…However, the generation of more inward moment at the knee joint creates a counteracting force against the inertia, providing additional support to the body. The generated inward moment at the knee joint during cutting may also increase the risk of soft tissue injury due to insufficient internal force, as the knee joint is not able to counteract the generated moment effectively [67]. During change of direction the body is required to accelerate into a different direction, which can result in an increased knee abduction moment which may impose a significant load on the ACL [68].…”

Lower Limb Muscle Forces in Table Tennis Footwork during Topspin Forehand Stroke Based on the OpenSim Musculoskeletal Model: A Pilot Study

“…It means that greater muscle force of the medial and lateral gastrocnemius in the one-step footwork provides greater plantarflexion moments and angles. This may explain why gastrocnemius muscle activity is higher when the heel take-off due to plantar flexion during stroke [39,40]. Besides, the significantly higher knee flexion angle was observed in one-step footwork, greater knee flexion and greater plantarflexion allow athletes to better utilize energy transfer throughout the kinematic chain to achieve a proper velocity of racket based on the proximal-todistal segmental sequences [36].…”

Influência Dos Diferentes Tipos De Fadiga Nas Respostas Fisiológicas, Perceptivas E No Desempenho Atlético Em Jogadores De Basquetebol

“…Isto posto, uma redução no acerto dessas tarefas podem reduzir a pontuação total da equipe para vencer a partida. Desta forma, os distúrbios na efetividade das habilidades relatadas podem ter causas nos variados mecanismos de fadigabilidade (Chen et al, 2005;Ibáñez et al, 2009;Rupčić et al, 2015;Slawinski et al, 2015;Canli et al, 2018;Toapanta et al, 2018;Tiggemann et al, 2018;Bahrami et al, 2020;Filipas et al, 2021;Li et al, 2021;Lin et al, 2022).…”

“…Quadro 01. Principais tipos de fadiga, suas características e a ferramentas usadas para o monitoramento (Adaptado de Montgomery et al, 2008;Taylor et al, 2012;Halson, 2014;Suchomel;Bailey, 2014;Hogarth et al, 2015a;Wiewelhove et al, 2015;Alarcón et al, 2017;Thorpe et al, 2017;Edwards et al, 2018;Lehnert et al, 2018;Russell et al, 2019;Bahrami et al, 2020;Shaabani et al, 2020;Li et al, 2021;Ansdell;Dekerle, 2020;Liveris et al, 2021;Alba-Jiménez et al, 2022;Boukhris et al, 2022;Cao et al, 2022;Lin et al, 2022;Willberg et al, 2022;Bonder;Shim, 2023) [ LEGENDA: pH=potencial hidrogeniônico, CMJ=salto contramovimento, DJ=salto drop jump, RSA=teste de corridas repetidas, EDMC=questionário da verificação de esgotamento do ego, NASA-TLX=índice nacional de carga de tarefas da aeronáutica e administração espacial, EEG=eletroencefalografia, DISE=inventário diário de eventos estressantes, DSS=escala de sensibilidade à depleção, CHIME=inventário abrangente de experiências de atenção plena, TQR=questionário da qualidade total de recuperação, BSCS=escala breve de autocontrole, BSFT=protocolo específico de fadiga no basquetebol, BEST=teste de simulação de exercício para o basquetebol, LESS=teste sistema de pontuação de erros na aterrissagem, POMS=questionário do estado de humor, HRZ=zonas da frequência cardíaca, TRIMP=impulso de treinamento, VEAL=nível de ativação elétrica voluntária, EMT=estimulação magnética transcraniana ] O tamanho amostral total das trinta e seis pesquisas elegidas foi de 761 (100%) jogadores de basquetebol. Desta quantidade, 3.28% (n=25) são jogadores recreativos, 6.57% (n=50) amadores, 26.5% (n=202) formativos, 14.7% (n=112) universitários, 13.7% (n=105) semiprofissionais e, 35.0% (n=267) profissionais.…”

“…Desta quantidade, 3.28% (n=25) são jogadores recreativos, 6.57% (n=50) amadores, 26.5% (n=202) formativos, 14.7% (n=112) universitários, 13.7% (n=105) semiprofissionais e, 35.0% (n=267) profissionais. Em relação ao gênero, 92.7% (n=706) são masculinos e 7.22% (n=55) são atletas femininas (Chen et al, 2005;Erčulj;Supej, 2006;Esteves et al, 2007;Castagna et al, 2008;Montgomery et al, 2008;Moreira, 2008;Urtado et al, 2012;Delextrat et al, 2013a;Delextrat et al, 2013b;Leite et al, 2013;Spiteri et al, 2013;Bonfanti;Lorenzo, 2015;Ronghui, 2015;Rupčić et al, 2015;Slawinski et al, 2015;Yoshida et al, 2015;Alarcón et al, 2017;Canli et al, 2018;Lehnert et al, 2018;Madueno et al, 2018;Moreira et al, 2018;Tiggemann et al, 2018;Toapanta et al, 2018;Ferioli et al, 2019;Naderi et al, 2019;Ansdell;Dekerle, 2020;Bahrami et al, 2020;Shaabani et al, 2020;Filipas et al, 2021;Li et al, 2021;Liveris et al, 2021;Lin et al, 2022;Hůlka et al, 2022;Hůlka et al, 2023;Palmer et al, 2023;Philipp et al, 2023).…”