---
title: "1 Muscles Varies Quotes by 1 author"
description: "Browse 1 Muscles Varies quotes by 1 author. Discover the best Muscles Varies sayings and thoughts."
image: "https://sms4smile.com/quotes/i/5e2/dave-gorman-40297_abdominals_the-activity-of-both-sets-of-muscles-the_2831537.jpg"
---

> [The activity of both sets of muscles, the diaphragm and the abdominal muscles, varies reciprocally. Thus, during inspiration the tonus of the diaphragm increases while that of the abdominal muscles decreases, and vice-versa during expiration. Hence there exists between these…](https://sms4smile.com/quotes/dave-gorman/the-activity-of-both-sets-of-muscles-the-diaphragm-and-the-abdominal/)

[Dave Gorman](https://sms4smile.com/quotes/author/dave-gorman/)

[Image](https://sms4smile.com/quotes/i/5e2/dave-gorman-40297_abdominals_the-activity-of-both-sets-of-muscles-the_2831537.jpg)

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