Wolff's Law - PTH 151
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Tidewater Community College
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Summary
This document explains Wolff's Law, a concept in bone physiology, and describes the process of bone formation, influenced by stress and movement. The document includes the structure of a long bone and discusses the effect of physical stress on bone growth and maintenance.
Full Transcript
TIDEWATER COMMUNITY COLLEGE PTA PROGRAM VIRGINIA BEACH CAMPUS **PTH 151 - Wolff's Law** [Reference]: Trail Guide to Movement pg. 38-39; Clinical Mechanics and Kinesiology pg. 70-73 [Learner Objectives] - 7D24: G.Patient/Client education H. Therapeutic exercise C3. Describe the composition an...
TIDEWATER COMMUNITY COLLEGE PTA PROGRAM VIRGINIA BEACH CAMPUS **PTH 151 - Wolff's Law** [Reference]: Trail Guide to Movement pg. 38-39; Clinical Mechanics and Kinesiology pg. 70-73 [Learner Objectives] - 7D24: G.Patient/Client education H. Therapeutic exercise C3. Describe the composition and structure of bone. C6. Define Wolff's Law and discuss its role in bone formation. **YouTube: Wolff's Law Explained** **[Structure of a long bone]** **[Wolff's Law]** A. Calcium is laid down in response to stress 1\. Increased physical stress is placed on the bone→ gains bony matrix 2\. Decreased physical stress is placed on the bone→ loses bony matrix B. Pressure is placed upon a tissue, a slight electric charge results in the tissue (piezo-electric effect) C. Excessive stress placed on bones at joint surface = Calcium deposited on bone which will become denser and denser. Ca++ (Calcium cation) is then placed on the outer margin of bone.
