Force


Amplitude Of Movement, Law of Repetitive Motion, and Plyometrics

You may have heard trainers and coaches talk about movement amplitude. I often talk about amplitude as being one of those performance characteristics that determine the outcome of a training regimen and one of the factors indicating reductions or improvement in performance.

Amplitude is also part of the "law of repetitive motion" equation developed by Dr. Michael P. Leahy, who is the founder of Active Release Techniques (ART). This "law" is an equation describing the interaction between various parameters of human motion: I=NF/AR where:

Continue Reading » Amplitude Of Movement, Law of Repetitive Motion, and Plyometrics


The Failure of Intensity Cycling: Training to Fail Pt. 3

This post is a continuation of Training to Fail Part 2: Intensity Cycling and High Intensity Overtraining.

Part one of this post showed that it has been very difficult to elicit performance decrements using high intensity overtraining protocols and extreme protocols had to be undertaken to do it. Yet, high intensity in these studies meant MAXIMAL INTENSITIES. What's more these intensities were used over and over, rep after rep, for relatively long periods of time for such training.1 Intensity cycling is used for what is considered relatively high intensities as compared to hypertrophy parameters but nowhere near maximal intensities. The mean intensity of the so-called intermediate 5x5 programs is closer to 80% of maximum and sometimes lower.

Continue Reading » The Failure of Intensity Cycling: Training to Fail Pt. 3


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