Effects of Acute Resistance Exercise on Arterial Stiffness in Young Men

Abstract

Background and ObjectivesIncreased central arterial stiffness is an emerging risk factor for cardiovascular disease. Acute aerobic exercise reduces arterial stiffness, while acute resistance exercise may increase arterial stiffness, but this is not a universal finding. We tested whether an acute resistance exercise program was associated with an increase in arterial stiffness in healthy young men.Subjects and MethodsThirteen healthy subjects were studied under parallel experimental conditions on 2 separate days. The order of experiments was randomized between resistance exercise (8 resistance exercises at 60% of 1 repeated maximal) and sham control (seated rest in the exercise room). Carotid-femoral pulse wave velocity (PWV) and aortic augmentation index as indices of aortic stiffness were measured using applanation tonometry. Measurements were made at baseline before treatments, 20 minutes, and 40 minutes after treatments (resistance exercise and sham control).ResultsThere was no difference in resting heart rate or in arterial stiffness between the two experimental conditions at baseline. At 20 minutes after resistance exercise, heart rate, carotid-femoral PWV and augmentation index@75(%) were significantly increased in the resistance exercise group compared with the sham control (p<0.05). Brachial blood pressure, central blood pressure and pulse pressure were not significantly increased after resistance exercise.ConclusionAn acute resistance exercise program can increase arterial stiffness in young healthy men. Further studies are needed to clarify the effects of long-term resistance training on arterial stiffness.

Effects of age on arterial stiffness and central blood pressure after an acute bout of resistance exercise

“…DeVan et al (2005) found that bSBP did not change in young men and women after upper and lower body resistance exercises but cSBP significantly increased immediately after exercise and remained elevated until 30 min post-exercise. Another study, however, found no significant change in either peripheral or central blood pressures after upper and lower body resistance exercises (Yoon et al 2010). The different findings between the studies by Devan et al (2005) and Yoon et al (2010) could be, in part, due to differences in exercise intensities (75 % 1-RM vs. 60 % 1-RM) and sets and repetitions (1 set to exhaustion for nine exercises vs. two sets of 15 reps for eight exercises).…”

“…Another study, however, found no significant change in either peripheral or central blood pressures after upper and lower body resistance exercises (Yoon et al 2010). The different findings between the studies by Devan et al (2005) and Yoon et al (2010) could be, in part, due to differences in exercise intensities (75 % 1-RM vs. 60 % 1-RM) and sets and repetitions (1 set to exhaustion for nine exercises vs. two sets of 15 reps for eight exercises). Potentially performing exercises to exhaustion vs. a pre-determined set number of repetitions could have influenced the response.…”

Effects of resistance exercise training on resting and post-exercise forearm blood flow and wave reflection in overweight and obese women

“…14 Acute upper-body resistance exercise increases FBF and vasodilatory capacity to reactive hyperemia (RH) in healthy young adults. [15][16][17] However, the effects of acute resistance exercise on AIx remain unclear. Previous studies demonstrated that acute whole-body 17 and upper-body 16 resistance exercise significantly increased AIx in healthy young men.…”

“…[15][16][17] However, the effects of acute resistance exercise on AIx remain unclear. Previous studies demonstrated that acute whole-body 17 and upper-body 16 resistance exercise significantly increased AIx in healthy young men. In contrast, decreased AIx has been observed after acute leg resistance exercise.…”

Changes in Endothelial Function after Acute Resistance Exercise Using Free Weights

“…Furthermore, while endothelial function has been examined after an acute bout of resistance exercise (ARE) in healthy individuals, these studies have primarily focused on weight machines [5][6][7], with a few exceptions [8]. While Fahs et al (2009) utilized free weights, the exercise regime consisted of the bench press and the biceps curl, not a whole-body routine [8].…”