Date post: | 22-Dec-2015 |
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New Trends In Strength Training
Professor: Exercise Physiology and Biochemistry
Director: Exercise Physiology Laboratories
Department of Health, Sports and Exercise Sciences
University of New Mexico
Robert Robergs
Strength, Power and Other Determinants Of Sports Performance
• VO2max
• Economy
• Efficiency
• Metabolic Threshold
• Cardiovascular
• Physique & Body Composition
• Strength and Power
• Motor Unit Proportions
• Psychology
Body Composition/Physique
Problem There is no gold standard of measurement!
Motor Unit Proportions
Slow-twitch fiber Fast-twitch fiber
Fast-twitch oxidative fiber
myosin-ATPase stain
preincubation pH=4.6
Fiber TypingATPase Stain Technique
pH 4.3 4.6 10.4
Slow Oxidative
Fast Glycolytic
Fast Oxidative
ClassificationMethod
Nomenclature
Visual Red White
Contractile Velocity Slow-twitch Fast-twitch
Contractile Velocityand Metabolism
ISlow-twitch
IIabFast-twitch
intermediate
IIaFast-twitch
fatigueresistant
IIbFast-twitchfatigable
Contractile Velocityand Metabolism
SSlow-twitch
F(int)Fast-twitch
intermediate
FRFast-twitch
fatigueresistant
FFFast-twitchfatigable
Contractile Velocityand Metabolism
SOSlow-twitch
oxidative
FOGFast-twitchoxidativeglycolytic
FGFast-twitchglycolytic
Classification nomenclature of mammalian motor units
We need more of a science baseto strength training