Influence of resistance exercise of different intensities on state anxiety and blood pressure

Purpose: The purpose of this investigation was to examine selected psychobiological responses to acute bouts of resistance exercise (RE) of different intensities. Methods: Eighty-four participants were classified as experienced or inexperienced and then randomly assigned to three conditions: 1) 50% of one repetition maximum(1RM), 2) 80% IRM, or 3) control condition. RE consisted of performing three sets of four exercises between 12 to 20 reps in the 50% IRM condition and four to right reps in the 80% IRM condition. Dependent variables consisted of stale anxiety (SA), mood states (POMS), systolic BP (SBP), diastolic BP (DBP), and heart rate (HR). These variables were assessed before as wells 1, 20, 60, 120, and 180-min following the conditions. Data were analyzed with a 2 (experience) x 3 (conditions) x 6 (trials) mixed model ANOVA and Tukey post-hoc tests. Results: Results indicated that SA decreased significantly (P < 0.05) 180 min following. the 508 IRM condition. A significant decrease (P < 0.05) in vigor occurred immediately following the 50% IRM condition and persisted for 20 min. SEP increased significantly (P < 0.05) immediately following the 80% 1RM condition HR increased significantly (P < 0.05) following both RE conditions. No significant differences were found between the experienced or inexperienced participants. Conclusions: An acute bout of RE at 50% 1RM is associated with an immediate reduction in vigor followed by a significant decrease in SA that emerged 180 min following exercise.