This article explains how training age, training frequency, limb length, height, and relative strength relate to concentric barbell velocities at varying loads.
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NSCA Coach 11.4 shares how strength training of the posterior chain in athletes can reduce injury risk and aid rehabilitation. Visit us online to read more about exercise research.
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This study published in the Journal of Strength and Conditioning Research compared the muscle activation level of the gluteus maximus, biceps femoris, and erector spinae in the hip thrust, barbell deadlift, and hex bar deadlift; each of which are compound resisted hip-extension exercises.
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The purpose of this article is to examine which foot placement (staggered or parallel) provides better trunk stability when performing the barbell biceps curl exercise.
From the 2019 Tactical Annual Training, Rob Orr, co-lead of Bond University’s Tactical Research Unit, explains how the backs of tactical personnel can be compromised. He also details the systems that affect the back and how to construct programs to optimize physical conditioning and reconditioning.
TSAC FacilitatorsExercise ScienceProgram designBasic Pathophysiology and Science of Health Status or Condition, Disorder, or Disease
The purpose of this meta-analysis was to synthesize the literature and provide a robust estimate of the correlations between lower-body, multijoint, isometric and dynamic neuromuscular assessment variables and snatch (SN) and clean and jerk (C&J) performance in competitive weightlifters. A comprehensive search through 3 electronic databases (PubMed, SPORTDiscus, and Web of Science) returned 12 studies that met the inclusion criteria. Meta-analyses were performed on Pearson’s correlations between SN and C&J performance and 15 variables from 5 neuromuscular assessments— countermovement jump (CMJ), squat
jump (SJ), isometric midthigh pull (IMTP), back squat (BS), and front squat (FS) one repetition maximum (1RM). The FS and BS 1RM exhibited nearly perfect correlations (r 5 0.93 to 0.94), whereas the IMTP peak force exhibited very large correlations (r 5 0.83 to 0.85). The IMTP force at 250 ms exhibited very large correlations (r 5 0.77 to 0.78), and the CMJ and SJ peak power exhibited very large to nearly perfect correlations (r 5 0.88 to 0.92). These findings illustrate the importance of lower-body maximal and time-limited force-producing capabilities in weightlifters. Moreover, each assessment offers at least one variable
that exhibits a correlation of .0.70. Therefore, these assessments may be used to gauge weightlifting performance potential.
This Personal Training Quarterly article presents alternative ways of teaching the squat technique. Visit NSCA online to read more on exercise science, health, and fitness.
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