Premium
Small arteries stay stiff for a longer period following vibration exercises in combination with blood flow restriction
Author(s) -
Karabulut Ulku,
Karabulut Murat,
James Eric G.
Publication year - 2018
Publication title -
clinical physiology and functional imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.608
H-Index - 67
eISSN - 1475-097X
pISSN - 1475-0961
DOI - 10.1111/cpf.12516
Subject(s) - medicine , isometric exercise , hemodynamics , repeated measures design , blood flow restriction , analysis of variance , cardiology , heart rate , blood flow , blood pressure , resistance training , statistics , mathematics
Summary Purpose The aim of this study was to assess the effect of isometric exercises performed during whole‐body vibration ( WBV ) with and without blood flow restriction ( BFR ) on arterial elasticity and hemodynamic variables. Methods Eight male subjects performed static upper body ( UB ) and lower body ( LB ) exercises on a vibration platform with and without BFR . During BFR sessions, BFR cuffs were placed on the arms or legs and inflated to a target pressure. Exercises consisted of eight 45‐s sets for UB , and ten 1‐min sets for LB . Arterial elasticity and hemodynamic variables were assessed before, at 10 min and 40 min postexercise. Repeated measures ANOVA was used to test the mean differences in related variables. Results A significant condition ( BFR versus no‐ BFR ) main effect was detected for small arterial elasticity ( P <0·05). For heart rate ( HR ), there were significant time ( P <0·01), condition ( P = 0·02) and body ( P = 0·04) main effects during exercise and condition ( P <0·04) and time ( P <0·01) main effects following exercise. Significantly lower values in systemic vascular resistance were detected at 10 min post compared to 40 min post ( P <0·02) and UB compared to LB ( P = 0·02). Conclusions Results showed that small arteries stayed stiffer for a longer period of time after vibration exercises with BFR and BFR placed a greater demand on cardiovascular system. Findings also indicated that the type of exercises performed and/or the measurement location are very important and should be taken into account when examining arterial response.