title: Low-intensity resistance training after high-intensity resistance training can prevent the increase of central arterial stiffness.
abstract: Although high-intensity resistance training increases arterial stiffness, low-intensity resistance training reduces arterial stiffness. The present study investigates the effect of low-intensity resistance training before and after high-intensity resistance training on arterial stiffness. 30 young healthy subjects were randomly assigned to a group that performed low-intensity resistance training before high-intensity resistance training (BLRT, n=10), a group that performed low-intensity resistance training after high-intensity resistance training (ALRT, n=10) and a sedentary control group (n=10). The BLRT and ALRT groups performed resistance training at 80% and 50% of one repetition maximum twice each week for 10 wk. Arterial stiffness was measured using carotid-femoral and femoral-ankle pulse wave velocity (PWV). One-repetition maximum strength in the both ALRT and BLRT significantly increased after the intervention (P<0.05 to P<0.01). Both carotid-femoral PWV and femoral-ankle PWV after combined training in the ALRT group did not change from before training. In contrast, carotid-femoral PWV after combined training in the BLRT group increased from before training (P <0.05). Femoral-ankle PWV after combined training in the both BLRT and ALRT groups did not change from before training. These results suggest that although arterial stiffness is increased by low-intensity resistance training before high-intensity resistance training, performing low-intensity resistance training thereafter can prevent the increase of arterial stiffness.
authors.affiliation: Institute of Exercise and Sport Physiology, Nippon Sport Science University, Tokyo, Japan. tokamoto@nittai.ac.jp
authors.forename: T
authors.initials: T
authors.lastname: Okamoto
authors.forename: M
authors.initials: M
authors.lastname: Masuhara
authors.forename: K
authors.initials: K
authors.lastname: Ikuta
mesh_terms: D000704:Analysis of Variance; D015444:Exercise / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D063177:Pulse Wave Analysis; D055070:Resistance Training / Q000009:adverse effects / Q000379:methods*; D059289:Vascular Stiffness; D055815:Young Adult