EMG median power frequency in an exhausting exercise
| Autor: | W. Ament, Gerard J.J. Bonga, At L. Hof, Gÿsbertus J. Verkerke |
|---|---|
| Přispěvatelé: | Extremities Pain and Disability (EXPAND) |
| Rok vydání: | 1993 |
| Předmět: |
medicine.medical_specialty
MUSCLE FATIGUE Power frequency Biophysics Neuroscience (miscellaneous) Treadmill exercise Isometric exercise PARAMETERS Calf muscles Physical medicine and rehabilitation Internal medicine medicine MYOELECTRIC SIGNAL MEDIAN POWER FREQUENCY Soleus muscle SPECTRUM Muscle fatigue business.industry ISOMETRIC CONTRACTIONS MUSCLE MUSCULAR FATIGUE ISCHEMIA Muscular fatigue Cardiology Neurology (clinical) business DYNAMIC CONTRACTIONS FIBER CONDUCTION-VELOCITY Gastrocnemius medialis |
| Zdroj: | Journal of electromyography and kinesiology, 3(4), 214-220. ELSEVIER SCI LTD |
| ISSN: | 1050-6411 |
| DOI: | 10.1016/1050-6411(93)90010-t |
| Popis: | EMG median power frequency of the calf muscles was investigated during an exhausting treadmill exercise. This exercise was an uphill run, the average endurance time was 1.5 min. Median power frequency of the calf muscles declined by more than 10% during this exercise. In addition EMG median power frequency of isometric contractions of the same muscles was measured before and in one minute intervals for 10 min after this run. Immediately after the run isometric median power frequency had declined by less than 5% for the soleus muscle, more than 10% for the gastrocnemius medialis and gastrocnemius lateralis muscles. In the 10 min following exercise the isometric median power frequency increased to pre-exercise levels. Maybe the median power frequency shift to lower frequencies during dynamic exercise can be interpreted as a sign of local muscle fatigue. |
| Databáze: | OpenAIRE |
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