Influence of Different Relative Intensities on Power Output During the Hang Power Clean

Kawamori, Naoki; CRUM, AARON J.; BLUMERT, PETER A.; Kulik, Justin R; CHILDERS, JAMES T.; Wood, Julie; Stone, Michael H.; Haff, G. Gregory

doi:10.1519/00124278-200508000-00035

Cited by 12 publications

(3 citation statements)

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“…Participants completed assessments of 1RM for squats (SQ), deadlifts (DL), chest press (CP), seated shoulder press (SSP), power clean (PC), and hang clean (HC). All exercises were completed using a 20 kg Eleiko barbell and in accordance with published protocols [33][34][35]. Prior to 1RM attempts participants started at 50% of estimated 1RM for 3-5 repetitions, progressing to 70% for 1-3 repetitions, and 90% for 1 repetition.…”

Section: Assessment Of 1 Repetition Maximummentioning

confidence: 99%

Can 3 mg·kg−1 of Caffeine Be Used as An Effective Nutritional Supplement to Enhance the Effects of Resistance Training in Rugby Union Players?

et al. 2021

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The present study uniquely examined the effect of 3 mg·kg−1 chronic caffeine consumption on training adaptations induced by 7-weeks resistance training and assessed the potential for habituation to caffeine’s ergogenicity. Thirty non-specifically resistance-trained university standard male rugby union players (age (years): 20 ± 2; height (cm): 181 ± 7; body mass (kg): 92 ± 17) completed the study), who were moderate habitual caffeine consumers (118 ± 110 mg), completed the study. Using a within-subject double-blind, placebo-controlled experimental design, the acute effects of caffeine intake on upper and lower limb maximal voluntary concentric and eccentric torque were measured using isokinetic dynamometry (IKD) prior to and immediately following a resistance training intervention. Participants were split into strength-matched groups and completed a resistance-training program for seven weeks, consuming either caffeine or a placebo before each session. Irrespective of group, acute caffeine consumption improved peak eccentric torque of the elbow extensors (p < 0.013), peak concentric torque of the elbow flexors (p < 0.005), total eccentric work of the elbow flexors (p < 0.003), total concentric work of the knee extensors (p < 0.001), and total concentric and eccentric work of the knee flexors (p < 0.046) following repeated maximal voluntary contractions. Many of these acute caffeine effects were still prevalent following chronic exposure to caffeine throughout the intervention. The training intervention resulted in significant improvements in upper and lower body one-repetition maximum strength (p < 0.001). For the most part, the effect of the training intervention was equivalent in both the caffeine and placebo groups, despite a small but significant increase (p < 0.037) in the total work performed in the participants that consumed caffeine across the course of the intervention. These results infer that caffeine may be beneficial to evoke acute improvements in muscular strength, with acute effects prevalent following chronic exposure to the experimental dose. However, individuals that consumed caffeine during the intervention did not elicit superior post-intervention training- induced adaptations in muscular strength.

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Section: Assessment Of 1 Repetition Maximummentioning

confidence: 99%

Can 3 mg·kg−1 of Caffeine Be Used as An Effective Nutritional Supplement to Enhance the Effects of Resistance Training in Rugby Union Players?

et al. 2021

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“…It should be noted that the lifter's body weight was not included in the calculations, so that the power calculations recorded the work done against the bar by the lifter. This exclusion of the body weight in the calculations gives more crucial information about weightlifting performance, because the success of weightlifting depends on the power applied to the barbell, which moves independently of the body, and on how high the lifter can pull the barbell (in the snatch and clean) or drive it (in the jerk), regardless of the lifter's body mass (Hori et al, 2006;Hori et al, 2007;Kawamori et al, 2005;McBride et al, 2011). In that sense, specific measurement of the power applied to the barbell may be the primary outcome measure when assessing weightlifting performance (Hori et al, 2006;Hori et al, 2007;Kawamori et al, 2005;McBride et al, 2011).…”

Section: Data Collection and Analysismentioning

confidence: 99%

Power-load curves in an elite weightlifter. A case study. [Curvas de carga-potencia en un halterófilo de élite. Estudio de caso].

Frutos

Sedano-Campos

Castán

2017

Rev. int. cienc. deporte

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Findings from mechanical power data can make a significant difference in the performance of athletes in weightlifting if it is properly understood by coaches. The purpose of this study was to examine the powerload (P-L) curve in the snatch, clean, back jerk and jerk of an international-level Spanish weightlifter. Four testing sessions were conducted in the present work. Session 1: estimating snatch and clean 1RM (1 repetition maximum); Session 2: power assessment of the snatch and clean across a spectrum of loads (30% to 100%) of the predetermined 1RM; Session 3: estimating back jerk and jerk 1RM; Session 4: power assessment of the back jerk and jerk across a spectrum of loads (30% to 100%) of the predetermined 1RM. The highest peak power output (Pmax) was reached with loads of 90% of 1RM in each exercise tested, which demonstrated this percentage to be the optimal load (Pmax load) to train power development during weightlifting exercises.Key words: snatch; clean; back jerk; jerk power; optimal load. AbstractCorrespondence/correspondencia: Francisco Javier Sánchez de Frutos Servicio de Educación Física y Deportes. Universidad de Salamanca. España Email: javierflores@usal.es El entendimiento por parte de los entrenadores de los datos de potencia mecánica obtenidos en la halterofilia puede marcar notables diferencias en el rendimiento de los atletas. El propósito de este estudio fue examinar la curva de carga-potencia en los ejercicios de arrancada, cargada, envión por detrás y envión en un halterófilo español de nivel internacional. Cuatro sesiones de evaluación fueron llevadas a cabo en este estudio. En la sesión 1 se estimó el 1RM (1 repetición máxima) en la arrancada y la cargada. En la sesión 2 se realizó una evaluación de la potencia alcanzada en la arrancada y la cargada en un espectro de cargas desde el 30% al 100% del 1RM predeterminado anteriormente. En la sesión 3 se estimó el 1RM en el envión por detrás y el envión. En la sesión 4 se realizó una evaluación de la potencia alcanzada en el envión por detrás y el envión en un espectro de cargas desde el 30% al 100% del 1RM predeterminado anteriormente. El pico de potencia mecánica fue alcanzado con el 90% del 1RM en cada uno de los ejercicios, mostrando dicho porcentaje como la carga óptima para el desarrollo de la potencia en ejercicios de halterofilia.Palabras clave: arrancada; cargada, envión; envión por detrás; potencia; carga óptima. Resumen

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“…Consequently, the PPO for these exercises have been studied extensively. For example, the PPO of the jump shrug (JShrug) (Suchomel et al, 2014b(Suchomel et al, , 2016Suchomel and Sole, 2017;Kipp et al, 2018), countermovement shrug (CShrug) (Meechan et al, 2020b), hang high pull (HHP) (Suchomel et al, 2014b(Suchomel et al, , 2015aSuchomel and Sole, 2017), hang clean pull (HCP) (Meechan et al, 2020a), midthigh clean pull (MTCP) (Haff et al, 1997;Kawamori et al, 2006;Comfort et al, 2012bComfort et al, , 2015, hang power clean (HPC) (Kawamori et al, 2005;Kilduff et al, 2007;Suchomel et al, 2014a,b;Suchomel and Sole, 2017;Kipp et al, 2018), and power clean (PC) (Cormie et al, 2007a,b,c;McBride et al, 2011;Comfort et al, 2012a) have been previously identified. Despite the importance of prescribing exercises at the load at which the PPO is achieved, the means by which PPO values are obtained may present as a barrier to practitioners.…”

Section: Introductionmentioning

confidence: 99%

Determining the Peak Power Output for Weightlifting Derivatives Using Body Mass Percentage: A Practical Approach

Santos

Jagodinsky

Lagally

et al. 2021

Front. Sports Act. Living

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Influence of Different Relative Intensities on Power Output During the Hang Power Clean

Cited by 12 publications

References 0 publications

Can 3 mg·kg−1 of Caffeine Be Used as An Effective Nutritional Supplement to Enhance the Effects of Resistance Training in Rugby Union Players?

Can 3 mg·kg−1 of Caffeine Be Used as An Effective Nutritional Supplement to Enhance the Effects of Resistance Training in Rugby Union Players?

Power-load curves in an elite weightlifter. A case study. [Curvas de carga-potencia en un halterófilo de élite. Estudio de caso].

Determining the Peak Power Output for Weightlifting Derivatives Using Body Mass Percentage: A Practical Approach

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