Comparison of novice versus expert for a hang clean lift: Muscle activation and temporal differences
(Vergleich des Umsetzens aus dem Hang zwischen Anfängern und Spezialisten : Unterschiede in der Muskelaktivierung und im Zeitverlauf)
Differences in muscle activation patterns between phases of a skilled movement were analyzed in novice and expert weightlifters. Only one S in each category was assessed.
Repetition completion times, lumbar maximum EMG, and lumbar and thoracic time to peak EMG were all better in the expert performer. These results suggest the following:
as greater skill is acquired, ballistic repetition becomes even more explosive,
experts are able to recruit motor units faster than novices, and
EMG may be a suitable means of measuring skill acquisition.
Implication: The characteristics of high-level performance in skill execution indicate some of the training parameters that should be emphasized if the skill involves explosive power. Training items should emphasize speed of execution, a conscious attempt to expend as much energy as possible in each task trial, and produce effort over the total range of muscles activated in the movement, not just a few prime movers.
© Copyright 1997 Medicine & Science in Sports & Exercise. Lippincott Williams & Wilkins. Alle Rechte vorbehalten.
Schlagworte: | EMG Fertigkeit Gewichtheben Leistungsfaktor Muskelphysiologie Technik |
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Notationen: | Kraft-Schnellkraft-Sportarten |
Veröffentlicht in: | Medicine & Science in Sports & Exercise |
Veröffentlicht: |
1997
|
Jahrgang: | 29 |
Heft: | 5 |
Seiten: | S1126 |
Dokumentenarten: | Artikel |
Sprache: | Englisch |
Level: | hoch |