title: Effects of Acupuncture Stimulation on Muscle Tissue Oxygenation at Different Points.
abstract: Muscle tissue oxygenation is a critical issue in muscle complications such as pain, exhaustion, stiffness, or fatigue during and after exercise. The aim of this study was to investigate whether the changes of muscle tissue oxygenation could be observed at both erector spinae muscle at S1 level and gastrocnemius during and after acupuncture stimulation to ipsilateral erector spinae at S1 level. The subjects were ten healthy males. Muscle oxygenation was monitored by near infrared spectroscopy (NIRS), and the probes were placed on the right side of the erector spinae muscle at S1 level (Guanyuanshu, BL26) and the belly of the gastrocnemius on the right (Chengjin, BL56). The subjects lay on the bed in prone position for 10 min, followed by acupuncture insertion into the right side of BL26. The needle was left for 10 min and subjects were kept still for 10 min after removal. At BL26, oxygenated-hemoglobin (oxy-Hb) was significantly increased compared to the baseline at 10 min after insertion (p < 0.05), then continued increasing. Total hemoglobin (t-Hb) was increased at 2 min after removal (p < 0.05). Tissue-oxygen saturation (StO2) was increased at 7 min after insertion (p < 0.05). At BL56, oxy-Hb and t-Hb were increased at 6 and 2 min after removal, respectively (p < 0.05). StO2 showed no significant change. The acupuncture stimulation affected muscle tissue oxygenation differently at both stimulated and non-stimulated points in the same innervation.
authors.affiliation: Department of Sports Medicine for Health Promotion, Tokyo Medical University, Tokyo, Japan. ykaneko@tokyo-med.ac.jp.|Department of Oriental Medicine, Kuretake College of Medical Arts and Sciences, Tokyo, Japan. ykaneko@tokyo-med.ac.jp.
authors.forename: Yasuhisa
authors.initials: Y
authors.lastname: Kaneko
authors.affiliation: Department of Sports Medicine for Health Promotion, Tokyo Medical University, Tokyo, Japan.
authors.forename: Ryotaro
authors.initials: R
authors.lastname: Kime
authors.affiliation: Department of Oriental Medicine, Kuretake College of Medical Arts and Sciences, Tokyo, Japan.
authors.forename: Eiji
authors.initials: E
authors.lastname: Furuya
authors.affiliation: Department of Oriental Medicine, Kuretake College of Medical Arts and Sciences, Tokyo, Japan.
authors.forename: Ayumi
authors.initials: A
authors.lastname: Sakamoto
authors.affiliation: Department of Sports Medicine for Health Promotion, Tokyo Medical University, Tokyo, Japan.
authors.forename: Toshihito
authors.initials: T
authors.lastname: Katsumura
mesh_terms: D015669:Acupuncture Points; D015670:Acupuncture Therapy / Q000379:methods*; D000328:Adult; D015415:Biomarkers / Q000097:blood; D064368:Healthy Volunteers; D006801:Humans; D008297:Male; D018482:Muscle, Skeletal / Q000294:innervation / Q000378:metabolism*; D010092:Oximetry / Q000379:methods; D010100:Oxygen / Q000097:blood*; D010101:Oxygen Consumption; D010108:Oxyhemoglobins / Q000378:metabolism; D016684:Prone Position; D019265:Spectroscopy, Near-Infrared; D013997:Time Factors
chemical_list: D015415:Biomarkers; D010108:Oxyhemoglobins; D010100:Oxygen
keywords: Acupuncture; Muscle blood flow; Near infrared spectroscopy; Oxygenation