Effect of Acute Resistance Exercise with Different Level of Blood Flow Restriction on Acute Changes in Muscle Thickness, Blood Lactate, CK, and Oxidative Stress in Male Adults

Abstract

PURPOSE To evaluate the effects of low-load resistance exercise (RE) with intermittent blood flow restriction (BFR) on the muscle thickness, blood lactate, creatine kinase (CK) and thiobarbituric acid-reactive substance (TBARS) levels in male. METHODS The study included 10 male college students aged 23.5 ± 1.0 years who underwent the following experimental protocols in random order on separate days (72 hour): 3 sessions at a 30% one-repetition maximum (1RM) RE with BFR (individual systolic blood pressure, 150% systolic blood pressure and 200% systolic blood pressure); 1 session at 60% 1RM RE without BFR (CON). The thigh circumference, TBARS and CK levels were measured before exercise (pre-exercise) and post-exercise and lactate, heart rate (HR), systolic (SP) and diastolic blood pressure were measured pre-, post-exercise, 5-, 15- and 30-minutes recovery. RESULTS Thigh circumference significantly increased following 30% 1RM with SP (p=.10) and SP 200% (p=.36) BFR compared to 60% 1RM without BFR but there was an increasing tendency in 30% 1RM with SP 150% (p = .83) BFR. Additionally, there were significant increases in TBARS (p<.05) and CK (p<.05) in the all protocols post-exercise samples compared with the pre-exercise samples but no significant group (p = .113, p = .870, respectively) or interaction (p = .385, p = .132, respectively) effect. CONCLUSIONS 30% 1-RM with BFR may effectively increase the circumference of the thigh muscle compared to 60% 1RM without BFR. Although both 30% 1RM with BFR (SP, SP 150%, SP 200%) and 60% 1RM without BFR temporarily increased TBARS production and CK, It does not cause damage. 색인어: ì €í•­ì„± 운동, í˜ˆë¥˜ì œí•œ, ì –ì‚°, CK, ì‚°í™”ìŠ¤íŠ¸ë ˆìŠ¤ Keywords: Resistance exercise, Blood flow restriction, Lactate, Creatine kinase, Oxidative stress