Should personal trainers include the crunch exercise in an exercise program? The answer should always be, “it depends;” however, arriving at the best answer requires a process.
Multidirectional ground reaction forces (GRFs) and jump tests within baseball pitchers provide insight into athletic ability and coordination to produce lower-body force and power. Lower-body power is a biomechanical feature that denotes physiological capacity through dynamic and passive tissue stretch-shortening in transferring energy from the ground through the kinetic chain. Optimized lower-body power may lessen the magnitude of forces on the upper extremity. Insufficient lower-body power may create a greater risk of upper-body injury. Lower-body power and its relationship to ball velocity have been minimally investigated, yet some research points to a correlation between jumping ability and fastball velocity. Because pitching is unilateral, practitioners should consider unilateral jumps to determine the extent of bilateral asymmetry or stride to drive leg differences that can guide training to remediate deficiencies. The purposes of this brief review are to (a) examine factors that influence vertical jump performance among baseball players, (b) examine research on pitching multidirectional
GRFs, and (c) examine literature concerning jump performances to baseball pitching performance. Collectively, this review can assist coaches and practitioners in lower-body power testing and training for baseball pitchers.
Learn about the hip rotators as they relate to performance training. In this session from the NSCA’s 2016 National Conference, Michael Griffith explains the limitations of the hip external rotators and how this can impede performance and lead to injury. This session will also provide eccentric drills and exercises for the hip rotators.
Personal trainersCoachesExercise ScienceProgram design
In this session from the NSCA’s 2016 TSAC Annual Training, Ryan Massimo demonstrates foundational movement techniques that engage the body as a single coordinated system, complement the movements the body performs on the job and in life, and help to build optimal and usable strength, power, mobility, and durability.
Tactical facilitators need to understand the movement patterns that first responders encounter because they can have a profound effect on underlying biomechanics and may contribute to excessive tissue loads.