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Effects of Acute Exercise Bouts on Cardiovascular Biomarkers in Runners with Exercise-Induced Hypertension

2025-06-30T15:00:00Z

Title: Effects of Acute Exercise Bouts on Cardiovascular Biomarkers in Runners with Exercise-Induced Hypertension Author(s): 김영주; Han-Soo Park; Sang-Hyun Nam; Sang-Hoon Kim; So-Eun Lee; Jae-Hee Choi; Yong-Bum Park; Jin-Ho Yoon Abstract: Exercise-induced hypertension (EIH) has increasingly been observed among middle-aged long-distance runners, raising concerns about cardiovascular risk. This study aimed to investigate acute changes in cardiovascular biomarkers associated with vascular inflammation, oxidative stress, antioxidant defense, endothelial function, and myocardial burden in runners with EIH. Thirty-seven middle-aged male runners (aged 40-65 years) were categorized into a normal blood pressure group (NBPG; systolic blood pressure <210 mmHg, n = 23) and an EIH group (EIHG; ≥210 mmHg, n = 14) based on maximal systolic blood pressure during a graded exercise test (GXT). Participants performed a 30 min treadmill run at 80% heart rate reserve, and blood samples were collected before and after exercise. The biomarkers analyzed included high-sensitivity C-reactive protein (hs-CRP), derivatives of reactive oxygen metabolites (d-ROMs), biological antioxidant potential (BAP), nitric oxide (NO), superoxide dismutase (SOD), and N-terminal pro-brain natriuretic peptide (NT-proBNP). The results show that the EIHG exhibited increased NT-proBNP and SOD levels, along with a reduced NO response, indicating elevated myocardial stress and impaired vasodilation. hs-CRP was positively correlated with multiple hemodynamic indices, and SOD levels were associate

Blood Flow Restriction Training as a Non-Pharmacologic Therapy with Exercise-Induced Hypertension

2025-06-22T15:00:00Z

Title: Blood Flow Restriction Training as a Non-Pharmacologic Therapy with Exercise-Induced Hypertension Author(s): 김영주; Ick-Mo Chung; Choung-Hwa Park; Jong-Young Lee Abstract: Background/Objectives: Long-distance runners with exercise-induced hypertension (EIH) are at increased risk for cardiovascular complications. Although blood flow restriction (BFR) training has shown promise in improving vascular function, hemodynamic response, and cardiorespiratory fitness, its effects in EIH runners remain understudied. This study aimed to evaluate the effects of BFR training on cardiovascular responses and exercise performance in this population as a potential non-pharmacological therapy. Methods: Middle-aged male long-distance runners aged 40–65 with peak systolic blood pressure (SBP) ≥ 210 mmHg during graded exercise testing were randomly assigned to either a BFR group (n = 18) or a non-BFR control group (n = 15) using a computer-generated random sequence. There were no significant differences in baseline characteristics between the groups. Both groups performed aerobic training at 40–60% HRR for 20 min twice weekly for 8 weeks. SBP, diastolic blood pressure (DBP), rate pressure product (RPP), ventilatory threshold (VT), VO₂max, and perceived exertion were assessed before and after the intervention at rest, during exercise, and during recovery. Results: Compared to the non-BFR group, the BFR group showed statistically significant reductions in resting and maximal SBP and DBP (p < 0.05), alon

Analysis of sleep duration, energy intakes, physical activity, and metabolic syndrome based on the presence or absence of obesity and hypertension in working Korean adults

2025-07-29T15:00:00Z

Title: Analysis of sleep duration, energy intakes, physical activity, and metabolic syndrome based on the presence or absence of obesity and hypertension in working Korean adults Author(s): 성은숙; 박종훈; 김상후; 이영준 Abstract: Background: Metabolic syndrome poses a serious public health concern among working adults, especially in the context of increasing rates of obesity and hypertension. These lifestyle-related conditions are intricately linked to sleep patterns, dietary behaviors, and physical activity. Objective: This study aimed to examine how sleep duration, energy intake, and physical activity levels—key lifestyle factors—are associated with metabolic syndrome based on the presence or absence of obesity and hypertension among working Korean adults. Methods: We analyzed 6,503 working Korean adults aged 20–59 years using cross-sectional data from the Korea National Health and Nutrition Examination Survey covering 2016–2018. This study divided the participants based on their obesity and hypertension status. We assessed the participants’ sleep duration on weekdays and weekends, their total dietary energy consumption and macronutrient intake using a 24-h dietary recall method conducted by trained interviewers, and occupational and recreational physical activities, and movement levels in MET min/week. We evaluated metabolic syndrome components using standard criteria and examined between-group differences using two-way analysis of variance and Bonferroni post-hoc tests. Results: Individuals with hypertension had significantly shorter weekday sleep (p < 0.05) and weekend sleep durations (p < 0.001) than those without. The highest total energy intake was significantly higher in obese individuals with hypertension than in those without hypertension (p < 0.05) and non-obese individuals with hypertension (p < 0.001). Furthermore, obese individuals with hypertension showed higher levels of occupational vigorous and total physical activities than those without hypertension (p < 0.01 and p < 0.001, respectively), whereas no difference was observed between obese and non-obese individuals with hypertension. Conclusion: This study concludes that hypertension and obesity may reinforce each other through reduced sleep duration, lower physical activity levels, and increased energy intake, thereby exacerbating metabolic syndrome. To prevent metabolic syndrome in working adults, multiple aspects of sleep, nutrition, and physical activity that match their unique risk profiles must be considered.

10주간의 댄스스포츠 운동이 여대생의 면역글로불린에 미치는 영향

2025-05-30T15:00:00Z

Title: 10주간의 댄스스포츠 운동이 여대생의 면역글로불린에 미치는 영향 Author(s): 양윤권; 송혜리 Abstract: This study included 16 female medically healthy college student volunteers who were enrolled at S University in S City. The subjects were divided into an exercise group (n=8) and a control group (n=8) for analysis of the effects of 10 weeks of dance sports exercise on immunoglobulin. Our findings are described below. Analysis of immunoglobulin levels before and after the dance sports exercise showed a significant difference in immunoglobulin A levels over time (p<.01**), no significant intergroup difference, but a significant time?group interaction effect (p<.02*). Immunoglobulin M levels differed significantly over time (p<.02*), did not differ significantly between groups, and demonstrated a significant time?group interaction effect (p<.01**). Immunoglobulin G levels did not differ significantly over time; however, a t-test comparing pre- and post-exercise within the exercise group revealed a significant difference (p<.04*). No significant intergroup difference was noted, but a significant time?group interaction effect was observed (p<.04*). These results confirmed that a dance sports exercise program positively affected the immunoglobulin of female college students. Continuous dance sports exercise programs