scholarly journals The circadian system modulates the rate of recovery of systolic blood pressure after exercise in humans

SLEEP ◽  
2019 ◽  
Vol 43 (4) ◽  
Author(s):  
Jingyi Qian ◽  
Frank Ajl Scheer ◽  
Kun Hu ◽  
Steven A Shea
Keyword(s):  
Blood Pressure ◽  
Systolic Blood Pressure ◽  
Cardiovascular Fitness ◽  
Circadian System ◽  
Peak Exercise ◽  
Exercise Recovery ◽  
Recovery Rates ◽  
Post Exercise ◽  
Rate Of Recovery ◽  
Post Exercise Recovery

Abstract Study Objectives Recovery rates of systolic blood pressure (BP) and heart rate (HR) after exercise have been used to assess cardiovascular fitness, and slower recovery rates are predictors of coronary heart disease and cardiac mortality. The endogenous circadian system is known to modulate BP and HR at rest and during exercise. Here, we examined whether the post-exercise recovery rates of BP and HR are also under circadian control. Methods Twelve healthy adults (mean age = 26 ± 6 (SD) years; 6 female) participated in a 240 h forced desynchrony protocol in dim light where all behaviors, including 15 min cycle exercise tests at 60% maximal HR, were uniformly distributed across the circadian cycle. Circadian phases were assigned based on the rhythm of core body temperature. For each session, HR was measured continuously, and BP every 3–5 min throughout baseline, exercise, and recovery. Recovery was quantified as the proportional return to pre-exercise baseline levels following exercise ([peak exercise-recovery]/[peak exercise-baseline) × 100%], whereby 100% represents full recovery to baseline). Results There was a significant circadian rhythm in systolic BP recovery, with fastest recovery at the circadian phase corresponding to late afternoon (equivalent to ~5 pm) and slower recovery across the early morning (~8:30 am; p = 0.029, peak-to-trough: 9.2%). There were no significant circadian variations in post-exercise recovery rates of diastolic BP or HR. Conclusions The circadian system modulates the rate of recovery of systolic BP after exercise with fastest recovery in the biological afternoon. These data could have implications for exercise prescription and interpretation of clinical tests of stress recovery.

scholarly journals EFFECT OF A THERMOGENIC SUPPLEMENTATION ON POST AEROBIC EXERCISE HEMODYNAMIC RESPONSES IN HEALTHY YOUNG MEN

2020 ◽  
Vol 20 (38) ◽  
pp. 155-162
Author(s):  
Vilton Emanoel Lopes de Moura E Silva ◽  
Valmir Oliveira Silvino ◽  
Jefferson Fernando Coelho Rodrigues Júnior ◽  
Alyson Felipe da Costa Sena ◽  
Carlos Eduardo Neves Amorim ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Aerobic Exercise ◽  
Statistical Significance ◽  
Group Versus ◽  
Test Group ◽  
Exercise Session ◽  
Control Group ◽  
Exercise Recovery ◽  
Post Exercise ◽  
Post Exercise Recovery

Introduction: The use of food supplements with esthetic or performance-enhancing goals has been largely investigated. Thermogenics are supplements that increase energy expenditure through thermogenesis and are widely consumed by individuals seeking to improve body composition and exercise performance. Objective: To evaluate the effects of a commercially available thermogenic supplement on post-exercise blood pressure responses. Materials and Methods: Twenty-seven healthy thermogenic supplements users participated in the study. Nine were assigned in the control group (21.67 ± 1.87 years), nine in the thermogenic group (24.00 ± 4.18), and nine in the placebo group (23.67 ± 3.04). The volunteers performed a treadmill aerobic exercise session for 60 minutes at 65 to 85% max heart rate. The hemodynamic variables were measured at rest and during 60 minutes in the post-exercise recovery. The normality of the data was evaluated using the Shapiro-Wilk test. Baseline momentum and post-exercise recovery were analyzed using the two-way ANOVA test (group versus time factors), with Bonferroni post-hoc test. The level of statistical significance was set at p <0.05. Results: The thermogenic supplement did not significantly compromise post-exercise hypotension when compared to the other groups. However, thermogenic supplementation increased the blood pressure in >5 mmHg, which reportedly plays an important role in cardiovascular diseases. Conclusion: The use of the thermogenic Lipo 6 Black Ultra Concentre Nutrex ® did not alter PEH in healthy youngsters. However, since an increase in the blood pressure was observed, this supplementation must be administered with caution.

scholarly journals Effect of the exercise of walkers performed in public squares with spontaneous or prescribed intensity on post-exercise hypotension

2017 ◽  
Vol 51 (0) ◽  
Author(s):  
Taís Feitosa da Silva ◽  
Alesandra Araújo de Souza ◽  
Fabiano Ferreira de Lima ◽  
Jennifer Ariely Sales Suassuna ◽  
Henrique Eduardo Paiva Lira do Couto ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Light Intensity ◽  
Moderate Intensity ◽  
Exercise Recovery ◽  
Post Exercise ◽  
Post Exercise Recovery ◽  
The City ◽  
Post Exercise Hypotension

ABSTRACT OBJECTIVE To quantify the intensity adopted by walkers in public squares and check the occurrence and magnitude of post-exercise hypotension in the spontaneously adopted intensity and in a prescribed intensity. METHODS In 98 volunteers (38 of them being hypertensive), walkers in public squares of the city of João Pessoa, State of Paraíba, Brazil, we have identified the intensity of a usual training monitored by heart rate and we have investigated the occurrence and magnitude of post-exercise hypotension. Subsequently, participants were instructed to walk with moderate intensity. Blood pressure was measured after rest and during post-exercise recovery. RESULTS Of the total participants, 41% of the hypertensive and 36% of the normotensive individuals walked with light intensity. With the prescription, intensity increased to 55% and 52%, for the hypertensive and normotensive individuals, respectively. In the usual and prescribed intensity, the hypertensive individuals had post-exercise hypotension of -3.7±11.6 mmHg and -4.72±12.8 mmHg, respectively. There was no correlation between post-exercise hypotension and the initial systolic component of the hypertensive individuals (r2 = 0.2; p < 0.002). CONCLUSIONS Walkers in public squares choose light intensity for walking. When they exercise with the prescribed intensity, they increase the intensity, but the magnitude of the PEH is not increase with this guidance.

scholarly journals Relationship of Carbohydrate Intake during a Single-Stage One-Day Ultra-Trail Race with Fatigue Outcomes and Gastrointestinal Problems: A Systematic Review

2021 ◽  
Vol 18 (11) ◽  
pp. 5737
Author(s):  
Soledad Arribalzaga ◽  
Aitor Viribay ◽  
Julio Calleja-González ◽  
Diego Fernández-Lázaro ◽  
Arkaitz Castañeda-Babarro ◽  
...  
Keyword(s):  
Systematic Review ◽  
Single Stage ◽  
Cochrane Library ◽  
Exercise Recovery ◽  
Post Exercise ◽  
Exercise Load ◽  
Gi Symptoms ◽  
Gastrointestinal Problems ◽  
Exercise Induced ◽  
Post Exercise Recovery

Due to the high metabolic and physical demands in single-stage one-day ultra-trail (SOUT) races, athletes should be properly prepared in both physical and nutritional aspects in order to delay fatigue and avoid associated difficulties. However, high carbohydrate (CHO) intake would seem to increase gastrointestinal (GI) problems. The main purpose of this systematic review was to evaluate CHO intake during SOUT events as well as its relationship with fatigue (in terms of internal exercise load, exercise-induced muscle damage (EIMD) and post-exercise recovery) and GI problems. A structured search was carried out in accordance with PRISMA guidelines in the following: Web of Science, Cochrane Library and Scopus databases up to 16 March 2021. After conducting the search and applying the inclusion/exclusion criteria, eight articles in total were included in this systematic review, in all of which CHO intake involved gels, energy bars and sports drinks. Two studies associated higher CHO consumption (120 g/h) with an improvement in internal exercise load. Likewise, these studies observed that SOUT runners whose intake was 120 g/h could benefit by limiting the EIMD observed by CK (creatine kinase), LDH (lactate dehydrogenase) and GOT (aspartate aminotransferase), and also improve recovery of high intensity running capacity 24 h after a trail marathon. In six studies, athletes had GI symptoms between 65–82%. In summary, most of the runners did not meet CHO intake standard recommendations for SOUT events (90 g/h), while athletes who consumed more CHO experienced a reduction in internal exercise load, limited EIMD and improvement in post-exercise recovery. Conversely, the GI symptoms were recurrent in SOUT athletes depending on altitude, environmental conditions and running speed. Therefore, a high CHO intake during SOUT events is important to delay fatigue and avoid GI complications, and to ensure high intake, it is necessary to implement intestinal training protocols.

Can Acupuncture Improve Exercise Performance and Post-Exercise Recovery?

2013 ◽  
Vol 56 (3) ◽  
pp. 26-27
Author(s):  
Paola Urroz ◽  
Ben Colagiuri ◽  
Caroline A. Smith ◽  
Birinder Singh Cheema ◽  
T. Engeroff ◽  
...  
Keyword(s):  
Exercise Performance ◽  
Exercise Recovery ◽  
Post Exercise ◽  
Improve Exercise Performance ◽  
Post Exercise Recovery

Photobiomodulation therapy before futsal matches improves the staying time of athletes in the court and accelerates post-exercise recovery

2018 ◽  
Vol 34 (1) ◽  
pp. 139-148 ◽  
Author(s):  
Thiago De Marchi ◽  
Ernesto Cesar Pinto Leal-Junior ◽  
Kalvin Comin Lando ◽  
Fabiane Cimadon ◽  
Adriane Aver Vanin ◽  
...  
Keyword(s):  
Photobiomodulation Therapy ◽  
Exercise Recovery ◽  
Post Exercise ◽  
Post Exercise Recovery ◽  
Staying Time

Influence of curcumin on performance and post-exercise recovery

2020 ◽  
pp. 1-11 ◽  
Author(s):  
Marilyn S. Campbell ◽  
Nicholas A. Carlini ◽  
Bradley S. Fleenor
Keyword(s):  
Exercise Recovery ◽  
Post Exercise ◽  
Post Exercise Recovery
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