Why should one always first warm-up before stretching? by Alejandro Valdivia
The elasticity of ligaments, tendons, and muscles is directly related to blood saturation. Blood saturation in ligaments, tendons, and muscles increases as the body's core temperature increases. Low blood saturation in cold tissue makes the tissue more susceptible to injury. Increases in core temperature are also associated with increases in muscle contraction speed due to increase in dissociation of oxygen from hemoglobin, decrease in muscle viscosity, increased elasticity of connective tissue and increase in conduction velocity. Warmer muscles not only contract but also relax faster since muscle relaxation time is more dependent on temperature than force development. It is, therefore important to always warm-up before stretching.
Answer based on materials developed by faculty of the Occupational and Physical Therapy Program at Queen's University, Kingston, Ontario, Canada
Dany (Nov. 01, 03)
For additional information see the following on-line and textbook sources:
Your reaction and comments to this week's question are welcome.
Cal State LA
Coaching Philosophy ||
Player Development || Fundamentals || Setting Goals || Practice Ideass
Leadup Games || Getting Ready || Endurance || Flexibility || Nutrition
Positive Discipline || Safety Tips || Related Links
Last Modified: Sept 07, 2004