Time-course effects of Water- Based High-Intensity Interval Training (HIIT) and Detraining in Women With Resistant Hypertension
Paper ID : 1106-SPORTCONGRESS (R1)
Authors
مهبانو قادری *
گروه علوم ورزشی دانشگاه بوعلی سینا- مجتمع آموزش عالی نهاوند (ویژه دختران)- همدان- ایران
Abstract
Introduction: Controlling blood pressure in individuals with resistant hypertension presents a significant challenge. This study aimed to investigate time-course effects of water- based high-intensity interval training (HIIT) and detraining in women with resistant hypertension.
Methods: Thirty-five elderly women were randomly assigned to either a control group (n=11) or a water-based exercise group (n=23). The interval training consisted of four movements with Arms pushing to the front: Stationary running, Cross country skiing, Jumping jacks and Frontal kick to 90°. Exercise intensity progressively increased from 9-14 repetitions per interval in week 1 to 17-17 repetitions per interval in weeks 12 to 24, based on the Borg Scale. Each effort duration was 2 minutes, followed by an equal rest period. Resting blood pressure was measured before the training program and 72 hours after the last session ( weeks 8, 12, 16, 20, 24). After 12 weeks, to assess the stability of training effects, the training group was divided into "continued and detraining" group. A mixed-design repeated-measures ANOVA was used to compare intra-group and inter-group results across different phases of the study (p < 0.05).
Results: Twelve weeks of water-based HIIT resulted in a significant reduction in SBP and DBP compared to pre-training levels (p < 0.05). Inter-group comparison at week 24 showed that “continuation of exercise” groups had significantly different SBP and DBP compared to the detraining group (p < 0.05). In intra-group comparisons, the continuation of exercise group exhibited significant changes in SBP and DBP at weeks 20 and 24 compared to earlier weeks (p < 0.05).
Conclusion: Water-based HIIT has proven effective in reducing blood pressure, even in patients who show a low response to pharmacological treatment. Furthermore, the beneficial effects of this type of training are maintained for at least the duration of the training period, even after detraining
Keywords
High-intensity interval training, detraining, Resistant hypertension
Status: Abstract Accepted (Poster Presentation)