The Effects of Electrical Acupuncture to Patellar Tendon and Electrical Stimulation to Femoral Nerve on the Blood Flow of the Patellar Tendon in Rat.
- VernacularTitle:ラットの膝蓋けん血流に及ぼす膝蓋けん部しん通電刺激と大腿神経電気刺激の影響
- Author:
MOTOHIRO INOUE
;
KENJI KATAYAMA
;
TATSUYA HOJO
;
TADASHI YANO
;
YASUKAZU KATSUMI
- Publication Type:Journal Article
- Keywords:
rat;
patellar tendon;
tendon blood flow;
patellar tendinitis;
femoral nerve
- From:Japanese Journal of Physical Fitness and Sports Medicine
2001;50(1):119-128
- CountryJapan
- Language:Japanese
-
Abstract:
The effects of electrical acupuncture at the patellar tendon and electrical stimulation of the femoral nerve on patellar tendon blood flow were evaluated using laser Doppler flowmetry in anesthetized rats. In most subjects the blood flow in the patellar tendon rapidly decreased for 30 seconds after the start of local electrical acupuncture and then increased above baseline. Changes in blood flow did not necessarily follow changes in arterial blood pressure. Changes in tendon blood flow induced by electrical stimulation of the femoral nerve were similar to those induced by electrical acupuncture at the patellar tendon. Arterial blood pressure and heart rate were not affected by electrical stimulation of the femoral nerve. Phentolamine administration abolished the decreased patellar tendon blood flow seen after initiating electrical acupuncture at the patellar tendon, whereas atropine abolished the increased patellar tendon blood flow seen after terminating electrical acupuncture at the patellar tendon. Furthermore, atropine did not evoke increased blood flow following electrical stimulation of the femoral nerve. These results suggest that the decrease of blood flow seen after initiating electrical acupuncture may be controlled by sympathetic vasoconstrictor nerves and the increase of blood flow following electrical acupuncture may be controlled by cholinergic vasodilator nerves.
