This book excerpt explains how to perform the box step-off landing assessment, which is used to determine an athlete’s readiness before beginning a program in agility and quickness.

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.

Linemen often do not get the same attention of the skill positions like a quarterback or wide receiver. However offensive and defensive linemen can control much of a football games tempo and outcome. This article goes over key areas to develop a well-rounded program for football linemen.

Opinions about the best functional exercises will always differ; however, science, logic, and a systematic approach will reduce confusion and debate. In this session from the 2014 NSCA Personal Trainers Conference, Gray Cook presents an interactive discussion that will provide you with the tools to elevate your skills with exercise choice and program design.

Acceleration is the rate of change in velocity, so this phase of sprinting is critical for changing directions as rapidly and efficiently as possible. Optimal technique for linear sprinting in the acceleration phase involves four factors that maximize stride length and frequency.

Interest in investigating minimalist footwear (MF) has grown exponentially in recent years. This article systematically reviews the benefits of MF for physical fitness, biomechanical factors, and injury incidence in middle and long distance runners. A systematic review of PubMed and FECYT (Web of Sciences, CCC, DIIDW, KJD, MEDLINE, RSCI, and SCIELO) was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines before 26 April of 2022. From the 583 studies initially found, 23 were included in the qualitative synthesis. The use of MF induces improvements in running economy and stride frequency in middle and long distance races and reduces the oscillations of a runner’s center of gravity and support time. From a biomechanical viewpoint, MF enhances forefoot support and increases knee stability, leading to greater foot and ankle mobility. In addition, MF reduces impact load at the knee joint.

This article describes proper technique for the one-arm dumbbell snatch, which is a total body power exercise.

Traditional lower-body resistance exercise alone may not be an optimal means of developing agility. Further, the effectiveness of straight-sprint training on agility performance has not been well established. In contrast, jump training, including loaded jump squats and horizontal and lateral jumps, holds promise.

This continuing education opportunity explores a variety of topics as they pertain to running. To earn your CEUs, it will be necessary to review several articles and pass a 50-question quiz. Please note: this quiz awards 1.0 CEU (10 contact hours). Articles 1. Running in Cold Weather: Exercise Performance and Cold Injury Risk 2. Running in the Heat: Performance Consequences and Strategies to Prepare for Hot-Weather Racing 3. Influence of Gait Retraining on Running Economy: A Review and Potential Applications 4. Stiffness in Running: A Narrative Integrative Review 5. Keeping Pace: A Practitioner-Focused Review of Pacing Strategies in Running 6. The Importance of the Foot and Ankle in Athletic Performance