Effect of prolonged, severe exercise on the ultrastructure of human skeletal muscle
| Autor: | Philip D. Gollnick, T. R. Hill, C. David Ianuzzo, Clyde Williams |
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| Rok vydání: | 1969 |
| Předmět: |
Adult
Blood Glucose Male medicine.medical_specialty Time Factors Sports medicine Physiology Physical Exertion Fatty Acids Nonesterified Biology chemistry.chemical_compound Oxygen Consumption Physiology (medical) Internal medicine medicine Severe exercise Humans Orthopedics and Sports Medicine Glycogen Muscles Public Health Environmental and Occupational Health Skeletal muscle VO2 max General Medicine Anatomy Oxygen uptake Microscopy Electron medicine.anatomical_structure Endocrinology Hematocrit chemistry Needle biopsy Ultrastructure human activities |
| Zdroj: | Internationale Zeitschrift f�r Angewandte Physiologie Einschlie�lich Arbeitsphysiologie. 27:257-265 |
| ISSN: | 1439-6327 1439-6319 |
| DOI: | 10.1007/bf00698529 |
| Popis: | Three subjects exercised to exhaustion by pedaling a bicycle ergometer at a work load that required an oxygen uptake of 75–80% of their maximal aerobic capacity. Muscle samples were taken from the vastus lateralis with the needle biopsy technique before exercise and immediately after the onset of exhaustion. Muscle glycogen decreased from initial values of 2.57, 1.41, and 3.09 to 0.22, 0.85, and 0.37 g/100 g wet weight respectively for the three subjects during the exercise. The ultrastructure of the fatigued muscle was not dissimilar from that obtained from the muscle at rest. The electron micrographs of fatigued muscle did show an almost complete absence of glycogen particles. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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