Identical conditioning exercise leads to different HRV and hemodynamic changes in patients with various blood pressure levels: a quasi-experimental study
Sang-Geun Jo, Jung-Soo Park, Yong-Seok JeeYong-Seok Jee
언어
영어(ENG)
URL
https://www.earticle.net/Article/A486267
원문정보
초록
영어
Exercise-based body conditioning programs are widely recommended as non-pharmacological strategies for improving cardiovascular health. However, it remains unclear whether individuals with different baseline blood pressure (BP) categories demonstrate differential hemodynamic responses to an identical structured exercise intervention. This study aimed to investigate whether resting BP status influences the magnitude of hemodynamic adaptations following a standardized body conditioning program. This quasi-experimental study included 95 young adults who voluntarily participated in a supervised 15-week body conditioning program. Participants were classified according to the American College of Cardiology/American Heart Association BP guidelines into four categories: normal blood pressure (NBP), elevated blood pressure (EBP), stage 1 hypertension (S1HTN), and stage 2 hypertension (S2HTN). Hemodynamic variables—including systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP), heart rate (HR), and rate pressure product (RPP)—were measured at baseline and after the intervention under standardized conditions. ANCOVA was performed to evaluate time effects, group effects, and time-by-group interactions after adjusting for relevant covariates. Significant time effects were observed across all BP groups, indicating overall improvements in hemodynamic parameters following the intervention (p < 0.05). Importantly, significant time-by-group interaction effects were identified for SBP, DBP, and MAP (p < 0.05), demonstrating that participants with higher baseline BP levels (S1HTN and S2HTN) exhibited greater reductions compared with those in the NBP and EBP groups. The magnitude of improvement increased progressively with baseline BP severity. HR and RPP also showed favorable reductions following the intervention, although their interaction effects across BP categories were less pronounced. Effect size analyses indicated moderate-to-large improvements particularly in hypertensive subgroups. As a conclusion, a standardized body conditioning program produces differential hemodynamic adaptations depending on baseline blood pressure status, with greater improvements observed among individuals with elevated and hypertensive BP profiles. These findings emphasize the importance of baseline cardiovascular risk stratification when interpreting exercise-induced physiological adaptations and support the clinical relevance of structured exercise interventions as an effective strategy for blood pressure management, particularly in hypertensive populations.
저자
Sang-Geun Jo [ Department of Physical Education, Graduate School of Hanseo University/Research Institute of Sports and Industry Science, Hanseo University, Seosan, Korea ]
Jung-Soo Park [ Department of Physical Education, Graduate School of Hanseo University, Seosan, Korea ]
Yong-Seok JeeYong-Seok Jee [ Yong-Seok Jee | Department of Physical Education, Graduate School of Hanseo University/Research Institute of Sports and Industry Science, Hanseo University, Seosan, Korea ]
Corresponding Author