PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
2009 | 69 | 3 |
Tytuł artykułu

Changes in the force-frequency relationship after the treadmill and whole body vibration training of motor units in rat medical gastrocnemius muscle

Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The aim of the study was to compare changes in the force-frequency relationship of motor units (MUs) in rat medial gastrocnemius muscle, caused by treadmill training and whole body vibration training. 24 Wistar rats were studied. Rats were divided into 3 groups: treadmill training group (n=7, locomotion speed 27 cm/s, 1 km daily, 5 days weekly, for 4 weeks), whole body vibration training group (n=6, Power Plate® vibration platform, 50 Hz vibration of 2 mm amplitude, 30 s daily, 5 days weekly, for 4 weeks) and a control group n=11. Functional isolation of single MUs was achieved by electrical stimulation of ventral roots fi laments. A total of 424 MUs were studied (148 in treadmill training, 142 in vibration training and 134 in control). MUs were classifi ed as fast fatigable – FF, fast resistant – FR or S – slow. The frequency causing 60% of maximum force of MUs has decreased in FF units of both trained groups and increased in FR units. In S units the increase of the parameter was noted only in treadmill trained group. Additionally, the slope of the force-frequency curve has increased in all MUs types in the vibration training group.
Słowa kluczowe
Wydawca
-
Rocznik
Tom
69
Numer
3
Opis fizyczny
p.328-329
Twórcy
autor
  • Department of Neurobiology, University School of Physical Education in Poznan, Poznan, Poland
autor
  • Department of Neurobiology, University School of Physical Education in Poznan, Poznan, Poland
  • Department of Neurobiology, University School of Physical Education in Poznan, Poznan, Poland
Bibliografia
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.agro-04b6fa3c-2413-4d92-b419-807a7f096810
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.