THE EFFECT OF UNLOADING BODY WEIGHT DURING AEROBIC EXERCISE ON BLOOD PRESSURE, HEART RATE, AND PERCEIVED EXERTION

Sauna baths acutely increases vasodilation, heart rate (HR) and muscle relaxation; therefore sessions of sauna have been tested as a therapeutic treatment for cardiovascular diseases and psychological diseases. When combined with exercise, sauna baths have been performed to accelerate exercise recovery, with the sauna being done post workout the majority of times. The aim of this study was to determine the effects of the sauna used prior to a bout of moderate intensity aerobic exercise. Eight volunteer performed a 20-minute treadmill aerobic exercise (running) 70% of maximal VO2 with and without a visit to the sauna. Systolic and diastolic blood pressure (BP), HR, and Rate of Perceived Exertion (RPE) were recorded before, halfway at 10 minutes, and after the aerobic exercise. Systolic BP, assessed before exercise, was not different when subjects performed prior sauna (124.8 ± 10.8 vs. 125± 11 mm/Hg no sauna and sauna, respectively). However, diastolic BP was lower in no-sauna condition vs. sauna condition while HR and RPE (73± 5 vs 80± 4.5 mm/Hg BP, 90±13 vs. 101±11 beats/min and 6 vs. 7 RPE no sauna and sauna, respectively). When the comparison was made within the experimental condition exercise, sauna attenuated the increase in systolic and diastolic BP induced by exercise without affecting HR and RPE. Extreme high temperatures experienced in sauna modulate cardiovascular system responses by increasing HR and diastolic blood pressure. Moderate exercise increases systolic and diastolic BP, which might be attenuated when sauna is performed prior to exercise. A Sauna session might be used to modulate the response of exercise towards BP.

Download Full-text

A Preliminary Investigation of the Effects of an Eight-Week Aerobic Exercise Program for Female Clerical Employees

Proceedings of the Human Factors Society Annual Meeting ◽

10.1177/154193128302700513 ◽

1983 ◽

Vol 27 (5) ◽

pp. 387-390

Author(s):

Brian W. Epps ◽

Stelle E. Washburn ◽

John G. Casali

Keyword(s):

Blood Pressure ◽

Heart Rate ◽

Body Weight ◽

Aerobic Exercise ◽

Body Fat ◽

Exercise Program ◽

Percent Body Fat ◽

Information Feedback ◽

Short Term ◽

Submaximal Heart Rate

This investigation was undertaken to: 1) determine the effects of a short-term aerobic exercise program on fitness, 2) pre-test possible physiological metrics for inclusion in a fitness information feedback system in anticipation of a future long-term research study. Eight female participants in an eight-week aerobic exercise program served as subjects. Three measurement sessions (pre-, mid-, and post-program) were used to collect: body weight, percent body fat, resting heart rate, resting systolic blood pressure, resting diastolic blood pressure, submaximal heart rate during bicycle ergometer exercise, recovery heart rate, and post-exercise systolic and diastolic blood pressures. VO2 max was predicted based on submaximal heart rate, workload, and weight. Subjects were given measurement results following each session as a form of fitness information feedback. Results based on multivariate analysis of variance, univariate analysis at variance, and subsequent Newman-Keuls tests revealed that short-term aerobic exercise classes can be expected to produce cardiovascular training effects, but have minimal effect on body weight and percent body fat.

Download Full-text

THE EFFECT OF EXCESS BODY WEIGHT ON RATINGS OF PERCEIVED EXERTION (RPE) AND HEART RATE (HR) IN OBESE INDIVIDUALS

Medicine & Science in Sports & Exercise ◽

10.1249/00005768-199205001-01098 ◽

1992 ◽

Vol 24 (Supplement) ◽

pp. S183

Author(s):

P. C. Di vico ◽

E. Omohundro ◽

S. P. von Duvillard

Keyword(s):

Heart Rate ◽

Body Weight ◽

Perceived Exertion ◽

Excess Body Weight ◽

Ratings Of Perceived Exertion

Download Full-text

Caffeine affects autonomic control of heart rate and blood pressure recovery after aerobic exercise in young adults: a crossover study

Scientific Reports ◽

10.1038/s41598-017-14540-4 ◽

2017 ◽

Vol 7 (1) ◽

Cited By ~ 16

Author(s):

Luana Almeida Gonzaga ◽

Luiz Carlos Marques Vanderlei ◽

Rayana Loch Gomes ◽

Vitor Engrácia Valenti

Keyword(s):

Blood Pressure ◽

Heart Rate ◽

Young Adults ◽

Aerobic Exercise ◽

Crossover Study ◽

Autonomic Control ◽

Pressure Recovery

Download Full-text

Abstract MP016: Innovation in Exercise: Increasing Capacity of Sedentary Obese Women with Cooling

Circulation ◽

10.1161/circ.125.suppl_10.amp016 ◽

2012 ◽

Vol 125 (suppl_10) ◽

Author(s):

Stacy T Sims ◽

Sandra Tsai ◽

Marcia L Stefanick

Keyword(s):

Blood Pressure ◽

Heart Rate ◽

Body Weight ◽

Waist Circumference ◽

Body Mass ◽

Exercise Tolerance ◽

Thermal Strain ◽

Walk Test ◽

Obese Women ◽

Thermal Discomfort

Background: Barriers to physical activity for obese women include overheating, sweating, fatigue, exhaustion, and rapid heart rate. Adipose tissue acts as a thermal insulator, promoting a greater heat load on the nonfat tissues, reducing heat tolerance; exercise causes a rise in body temperature with an inability to dissipate heat contributing to reduced exercise tolerance. With difficulties of thermoregulation in the sedentary obese population, the aspect of attenuating the discomfort thus associated may encourage continuation of exercise. A heat sink applied to palmar surfaces extracts heat and cools the venous blood, reducing thermal strain by enhancing the volume of cooled venous return. We hypothesized that palmar cooling using a rapid thermal exchange device (RTX) during exercise would attenuate the thermal discomfort of exercise of sedentary obese women, improving exercise tolerance. Methods: To examine whether palmar cooling would impact exercise tolerance in obese women, 24 healthy women aged 30–45 years, with no history of long term structured exercise, a body mass of 120–135% above ideal and/or BMI between 30 and 34.9 were recruited. Women were randomized into a cooling (RXT with 16°C water circulating) or a control (RTX with 37°C water circulating) group and attended 3 exercise sessions a week for 3-months (12 weeks). Each session was comprised of 10 min body weight exercises, 25–45 min treadmill walking at 70–85% HRR with the RTX device, and 10 min of core strengthening exercises. The performance marker was a 1.5 mi walk for time; conducted on the first and last days of the intervention. Mixed models were used to model each of the outcomes as a function of thermal strain, time and treatment with covariates of speed, heart rate, distance, and the interaction of the main effects included in the model. Results: Groups were matched at baseline for key variables (time for 1.5 mile walk test, resting and exercising heart rate [HR], blood pressure [BP], waist circumference [WC], body weight, body mass index [BMI]). Among the cooling group, time to complete the 1.5mile walk test was significantly faster (31.6 ± 2.3 vs. 24.6 ± 2.5 min, pre vs. post, P< 0.01). A greater average exercising HR was observed (136 vs. 154 bpm, pre vs. post, P <0.001), with a significant reduction in WC (41.8 ± 3.1 vs. 39.1 ± 2.2 inches, pre vs. post, P< 0.01) and resting BP (139/84 ± 124/70 mmHg, pre vs. post, P < 0.025). There were no significant differences observed in the control group. Conclusion: Results indicate that exercise tolerance in obese women improved with cooling during exercise, more so than those women who did not have cooling. An improvement in blood pressure, heart rate, waist circumference, and overall aerobic fitness was observed. These findings suggest that by reducing thermal discomfort during exercise, tolerance increases, thus improving cardiovascular parameters of obese women.

Download Full-text

Hypoxic pressor response, cardiac size, and natriuretic peptides are modified by long-term intermittent hypoxia

Journal of Applied Physiology ◽

10.1152/jappl.1999.87.6.2025 ◽

1999 ◽

Vol 87 (6) ◽

pp. 2025-2031 ◽

Cited By ~ 30

Author(s):

Holger Kraiczi ◽

Jarkko Magga ◽

Xiang Ying Sun ◽

Heikki Ruskoaho ◽

Xiaohe Zhao ◽

...

Keyword(s):

Blood Pressure ◽

Heart Rate ◽

Body Weight ◽

Atrial Natriuretic Peptide ◽

Right Ventricular ◽

Natriuretic Peptide ◽

Intermittent Hypoxia ◽

Spontaneously Hypertensive ◽

Wistar Kyoto

We investigated whether the effect of long-term intermittent hypoxia (LTIH) on cardiovascular function may be modified by preexisting genetic traits. To induce LTIH experimentally, cycles of 90-s hypoxia (nadir 6%) followed by 90-s normoxia were applied to six Wistar-Kyoto and six spontaneously hypertensive rats during 8 h daily. Comparison with the same number of control animals after 70 days revealed no alteration of intra-arterial blood pressure or heart rate. Blood pressure responsiveness to a brief hypoxic stimulus was enhanced in the LTIH animals, regardless of strain, whereas the hypoxia-induced increase in heart rate was abolished. In the spontaneously hypertensive but not the Wistar-Kyoto rats, LTIH increased left ventricular weight-to-body weight ratio and content of atrial natriuretic peptide mRNA. Expression of B-type natriuretic peptide was unchanged (Northern blot). Slightly increased right ventricular weight-to-body weight ratios in the LTIH animals were associated with higher right ventricular atrial natriuretic peptide and B-type natriuretic peptide mRNA amounts. Consequently, the effects of LTIH on different components of cardiovascular function appear incompletely related to each other and differentially influenced by constitutional traits.

Download Full-text

The Effects of Different Exercise Types on Hematological Parameters in Sedentary Women

Journal of Education and Training Studies ◽

10.11114/jets.v6i8.3374 ◽

2018 ◽

Vol 6 (8) ◽

pp. 96 ◽

Cited By ~ 1

Author(s):

Güner Çiçek

Keyword(s):

Heart Rate ◽

Body Weight ◽

Blood Cell ◽

Aerobic Exercise ◽

Hematological Parameters ◽

Exercise Group ◽

The Body ◽

Strength Exercise ◽

Strength Exercises ◽

Sedentary Women

The purpose of this study is to investigate the effect of aerobic and strength exercises on hematological parameters in sedentary women. To achieve the purpose of this study, a total of 23 volunteers including aerobic exercise group (AE, n: 10), strength exercise group (SE, n:13) were selected as participants. Two different exercises were applied for 4 days a week, throughout 16 weeks, within 60 minutes for each exercise with the intensity of heart rate (HR) 60-70 percent. The HR was measured using a heart rate monitor for each subject.The women's white blood cell (WBC), thrombocyte (PLT), red blood cell (RBC), hemoglobin (HGB), hematocrit (HCT) and mean corpuscular volume (MCV) were measured before and after exercise. For statistical analysis, the Wilcoxon signed-rank test was used for intra-group evaluations, and the Mann Whitney U test was used for inter-group evaluations. After the exercise program, there were a meaningful decrease in the body weight and body mass index (BMI) the women in both intervention groups. In addition, in the hematological results of strength exercise group, some meaningful decreases were determined in the values of RBC, HGB, HCT and MCV (p<0.01). As a results, it was observed that regular aerobic and strength exercises can positively influence the body weight and BMI parameters of sedentary women. Along with this, a meaningful decrease has been found in the values of RBC, HGB, HCT and MCV of strength exercise group compared to aerobic exercise.

Download Full-text