ACUTE STATIC STRETCHING REDUCES POWER OUTPUT DURING ISOTONIC MUSCLE ACTION
10.7600/jspfsm.55.S109
- Author:
TAICHI YAMAGUCHI
;
KOJIRO ISHII
;
MASANORI YAMANAKA
;
KAZUNORI YASUDA
- Publication Type:Journal Article
- Keywords:
stretching;
warm-up;
performance;
torque;
velocity
- From:Japanese Journal of Physical Fitness and Sports Medicine
2006;55(Supplement):S109-S112
- CountryJapan
- Language:English
-
Abstract:
PURPOSE : The purpose of the present study was to clarify the effect of static stretching on muscular performance with concentric isotonic muscle actions under various loads.METHODS : Concentric isotonic leg extension power outputs were assessed in 12 healthy male subjects after two types of pre-treatment. The pre-treatments included 1) static stretching (SS) treatment performing static stretching of leg extensors, and 2) non-stretching (NS) treatment by resting in a sitting position. Loads during the assessment of the power output were set to 5%, 30% and 60% of the maximum voluntary contractile (MVC) torque with isometric leg extension in each subject.RESULTS : The peak power output following the SS treatment was significantly (P<0.05) lower than that following the NS treatment under each load.CONCLUSION : The present study demonstrated that static stretching significantly reduces power output with concentric isotonic muscle actions under various loads. This result suggests that static stretching decreases power performance.
