Effect of Hip Joint Position on Electromyographic Activity of the Individual Hamstring Muscles During Stiff-Leg Deadlift

Kawama, Raki; Takahashi, Katsuki; Wakahara, Toshihiko

doi:10.1519/jsc.0000000000003442

Cited by 8 publications

(4 citation statements)

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“…This was attributed to the greater BFlh moment arm, and hence torque generation, at the hip than at the knee in these exercises (Table 3 ) [ 19 ]. Additional factors, however, are likely to contribute to these results, such as the bi-articular function of the hamstrings, their potential recruitment in rotation movements [ 173 – 176 ], and the influence of movement velocity on force and activation. However, examination of these factors and their complex interactions during various exercises is beyond the scope of this review.…”

Section: Main Textmentioning

confidence: 99%

“…In the present paper, sagittal plane forces, moment arms and joint torques were examined. Hamstring force-length relations may be altered when the sagittal plane movements are combined with movements in other planes (tibial [ 127 ] or hip rotations [ 173 ], for example). In addition, the bi-articular function of the hamstring muscles during simultaneous hip and knee joint movements and the influence of contractile velocity were not considered.…”

Section: Main Textmentioning

confidence: 99%

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Hamstrings force-length relationships and their implications for angle-specific joint torques: a narrative review

Kellis

Blazevich

2022

BMC Sports Sci Med Rehabil

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Temporal biomechanical and physiological responses to physical activity vary between individual hamstrings components as well as between exercises, suggesting that hamstring muscles operate differently, and over different lengths, between tasks. Nevertheless, the force-length properties of these muscles have not been thoroughly investigated. The present review examines the factors influencing the hamstrings’ force-length properties and relates them to in vivo function. A search in four databases was performed for studies that examined relations between muscle length and force, torque, activation, or moment arm of hamstring muscles. Evidence was collated in relation to force-length relationships at a sarcomere/fiber level and then moment arm-length, activation-length, and torque-joint angle relations. Five forward simulation models were also used to predict force-length and torque-length relations of hamstring muscles. The results show that, due to architectural differences alone, semitendinosus (ST) produces less peak force and has a flatter active (contractile) fiber force-length relation than both biceps femoris long head (BFlh) and semimembranosus (SM), however BFlh and SM contribute greater forces through much of the hip and knee joint ranges of motion. The hamstrings’ maximum moment arms are greater at the hip than knee, so the muscles tend to act more as force producers at the hip but generate greater joint rotation and angular velocity at the knee for a given muscle shortening length and speed. However, SM moment arm is longer than SM and BFlh, partially alleviating its reduced force capacity but also reducing its otherwise substantial excursion potential. The current evidence, bound by the limitations of electromyography techniques, suggests that joint angle-dependent activation variations have minimal impact on force-length or torque-angle relations. During daily activities such as walking or sitting down, the hamstrings appear to operate on the ascending limbs of their force-length relations while knee flexion exercises performed with hip angles 45–90° promote more optimal force generation. Exercises requiring hip flexion at 45–120° and knee extension 45–0° (e.g. sprint running) may therefore evoke greater muscle forces and, speculatively, provide a more optimum adaptive stimulus. Finally, increases in resistance to stretch during hip flexion beyond 45° result mainly from SM and BFlh muscles.

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Section: Main Textmentioning

confidence: 99%

Section: Main Textmentioning

confidence: 99%

Hamstrings force-length relationships and their implications for angle-specific joint torques: a narrative review

Kellis

Blazevich

2022

BMC Sports Sci Med Rehabil

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“…In this regard, practitioners and athletes have been interested in how to optimize adaptations (e.g., muscle hypertrophy) in this muscle. Exercises often included in hypertrophy-oriented training programs are squat, lunge, leg press, stiff-leg deadlift, and barbell hip thrust (Contreras et al, 2011;Contreras et al, 2015;Hackett, 2022;Kawama et al, 2021). There are indications that squat, and leg press effectively induce gluteus maximus hypertrophy (Kubo et al, 2019;Popov et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Addition of the barbell hip thrust is effective for enhancing gluteus maximus hypertrophy in young women

Kassiano

Kunevaliki

Costa

et al. 2023

Preprint

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There is a heated debate regarding the effectiveness of performing the barbell hip thrust to elicit gluteus maximus hypertrophy. Notably, evidence on this topic is lacking. Therefore, this study aimed to compare the effects of performing 45º leg press and stiff-leg deadlift (L-S) vs. performing 45º leg press, stiff-leg deadlift plus barbell hip thrust (L-S-BHT) on gluteus maximus muscle size. The sample comprised 33 untrained young women randomly separated into 2 resistance training groups: L-S (n = 15) and L-S-BHT (n = 18). The muscle thickness of the gluteus maximus was assessed through B-mode ultrasound before and after 30 resistance training sessions. The resistance training program was carried out over 10 weeks, 3 days·week− 1. Both training regimens elicited significant increases in gluteus maximus muscle thickness from pre to posttraining (P < 0.001). Notably, L-S-BHT had superior augments (L-S-BHT = + 9.3% vs. L-S = + 6.0%, P = 0.016). The current results suggest that performing barbell hip thrust enhances muscle hypertrophy of the gluteus maximus in untrained young women. From a practical perspective, the inclusion of barbell hip thrust should be considered when the prescription aims to optimize the gluteus maximums hypertrophy.

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“…Inúmeras pesquisas ao longo do tempo buscaram estudar o comportamento dos músculos isquiotibiais nos diferentes exercícios para identificar comportamentos de ativações nas articulações que os envolvem(LUNNEN;YACK;LEVEAU, 1981;MOHAMED;PERRY;HISLOP, 2002; ONISHI et al, 2002;OLIVER;DOUGHERTY, 2009;OKUWAKI;FUKUBAYASHI, 2011;ZEBIS et al, 2013;MCALLISTER et al, 2014;SCHOENFELD et al, 2015;YANAGISAWA;FUKUTANI, 2020;KAWAMA;TAKAHASHI; WAKAHARA, 2021). A maioria dos estudos tem mostrado padrões diferentes na ativação dos músculos que compoem os isquiotibiais.…”

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A posição do tornozelo durante o exercício mesa flexora não influencia na ativação muscular dos isquiotibiais e não interfere no ganho de força e hipertrofia

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Primeiramente agradeço a Deus por guiar meus passos e me orientar em minhas escolhas ao longo desse processo de amadurecimento pessoal e acadêmico.A minha família por me oferecerem todo o suporte para que eu realizasse e concluísse este projeto.Ao meu namorado Rodolfo Luiz Neves por não medir esforços em me auxiliar em tudo que foi preciso.Ao meu orientador Prof. Dr. Matheus Machado Gomes, pelos inúmeros ensinamentos, e principalmente pela paciência em me orientar em toda a trajetória até aqui. Aos professores daEscola de Educação Física e Esporte de Ribeirão Preto (EEFERP) e da banca examinadora. Aos participantes do Grupo de Estudos Neuromotores do Movimento Humano (GENEMOH), do Laboratório de Biomecânica e Controle Motor (LABIOCOM) pela amizade, colaboração científica e desenvolvimento intelectual. E aos voluntários que gentilmente participaram dessa pesquisa. Palavras-chave: Eletromiografia; Posição de tornozelo; Hipertrofia muscular; Relação comprimento-tensão; Isquiotibiais.

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Effect of Hip Joint Position on Electromyographic Activity of the Individual Hamstring Muscles During Stiff-Leg Deadlift

Cited by 8 publications

References 20 publications

Hamstrings force-length relationships and their implications for angle-specific joint torques: a narrative review

Hamstrings force-length relationships and their implications for angle-specific joint torques: a narrative review

Addition of the barbell hip thrust is effective for enhancing gluteus maximus hypertrophy in young women

A posição do tornozelo durante o exercício mesa flexora não influencia na ativação muscular dos isquiotibiais e não interfere no ganho de força e hipertrofia

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