TY - JOUR
T1 - Cardiovascular responses to human calf muscle stretch during varying levels of muscle metaboreflex activation
AU - Fisher, James
AU - Bell, Martin
AU - White, Michael
PY - 2005/5/20
Y1 - 2005/5/20
N2 - The purpose of the present study was to investigate the cardiovascular responses to muscle metaboreflex- and concurrent muscle stretch-induced mechanoreflex activation. Eight subjects (7 males, 1 female) performed 90 s of isometric calf plantarflexion at 0, 30, 50 and 70% of maximum voluntary contraction. During exercise and for 3.5 min postexercise, circulatory occlusion (PECO) was ensured by inflation of a thigh cuff. After 90 s of PECO the calf muscle was stretched for 60 s (Stretch). Heart rate (HR; assessed from ECG), blood pressure (BP; Finapres) and phase of respiratory cycle were recorded. Exercise increased diastolic BP (DBP) from rest by 1+/-0.8, 14+/-2.5, 29+/-3.9 and 35+/-3.6 mmHg, during the 0, 30, 50 and 70% conditions, respectively (ANOVA rest versus exercise, P
AB - The purpose of the present study was to investigate the cardiovascular responses to muscle metaboreflex- and concurrent muscle stretch-induced mechanoreflex activation. Eight subjects (7 males, 1 female) performed 90 s of isometric calf plantarflexion at 0, 30, 50 and 70% of maximum voluntary contraction. During exercise and for 3.5 min postexercise, circulatory occlusion (PECO) was ensured by inflation of a thigh cuff. After 90 s of PECO the calf muscle was stretched for 60 s (Stretch). Heart rate (HR; assessed from ECG), blood pressure (BP; Finapres) and phase of respiratory cycle were recorded. Exercise increased diastolic BP (DBP) from rest by 1+/-0.8, 14+/-2.5, 29+/-3.9 and 35+/-3.6 mmHg, during the 0, 30, 50 and 70% conditions, respectively (ANOVA rest versus exercise, P
UR - http://www.scopus.com/inward/record.url?scp=26044456379&partnerID=8YFLogxK
U2 - 10.1113/expphysiol.2005.030577
DO - 10.1113/expphysiol.2005.030577
M3 - Article
C2 - 16049058
SN - 1469-445X
VL - 90
SP - 773
EP - 781
JO - Experimental Physiology
JF - Experimental Physiology
IS - 5
ER -