scholarly journals Passive Heat Therapy Lowers Systolic Blood Pressure and Improves Vascular Endothelial Function in Healthy Older Adults

2019 ◽  
Vol 33 (S1) ◽  
Author(s):  
Vienna E Brunt ◽  
Hannah L Rosenberg ◽  
Amy E Bazzoni ◽  
Kathy H Nguyen ◽  
Jacob Frye ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Older Adults ◽  
Endothelial Function ◽  
Systolic Blood Pressure ◽  
Vascular Endothelial ◽  
Vascular Endothelial Function ◽  
Healthy Older Adults ◽  
Heat Therapy

scholarly journals Effect of Strawberry Intake for 4 Weeks on Vascular Endothelial Function and Blood Pressure in Adults with Moderate Hypercholesterolemia (P06-128-19)

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Di Xiao ◽  
Leailin Huang Huang ◽  
Indika Edirisinghe ◽  
Britt Burton-Freeman
Keyword(s):  
Blood Pressure ◽  
Endothelial Function ◽  
Vascular Function ◽  
Daily Intake ◽  
Random Order ◽  
Vascular Endothelial ◽  
Vascular Endothelial Function ◽  
Freeze Dried ◽  
Pressure Independent ◽  
Hs Crp

Abstract Objectives The aim of this study is to investigate the effect of chronic strawberry intake on cardiovascular risk factors including fasting lipids concentrations, vascular endothelial function and blood pressure in middle-age overweight or obese individuals with moderate hypercholesterolemia. We hypothesized that 4-week strawberry intake would improve the lipids profile and concomitantly improve measures of vascular function. Methods In this randomized, double-blinded, controlled, crossover trial, thirty-four subjects (age 53 ± 1 years, BMI 31 ± 1 kg m-2, mean ± SD) consumed a strawberry beverage containing 25 gram freeze-dried strawberry powder or energy-matched control beverage in random order twice a day for 4 weeks. Treatment periods were separated by 4-week washout period. Fasting lipids, glucose, insulin, high sensitive c-reactive protein (hs-CRP), and postprandial flow-mediated dilation (FMD) and blood pressure, were measured at weeks 0, 4, 8 and 12. Results Fasting lipids, glucose, insulin, and hs-CRP did not differ between strawberry and control beverage interventions. In contrast, vascular function as measured by change in %FMD was significantly increased after strawberry compared to control after 4 weeks supplementation (4.3 ± 0.3% versus 3.6 ± 0.3%, respectively, p = 0.0096). In addition, %FMD was acutely increased from 0 to 1 hour after consuming strawberry beverage (p < 0.0001), which was consistent with reduced meal-induced increases in systolic blood pressure (SBP) postmeal (mean 2 hour changes in SBP after strawberry compared to control beverage, 2.3 ± 0.4 versus 3.4 ± 0.4 mmHg, p = 0.048). Conclusions Daily intake of strawberries may improve endothelial function and acute changes in blood pressure, independent of other metabolic changes, and may be considered a specific food/fruit to include in a heart-healthy diet in overweight or obese subjects with moderate hypercholesterolemia. Funding Sources California Strawberry Commission, Watsonville, CA, USA. Supporting Tables, Images and/or Graphs

scholarly journals Time‐Efficient Inspiratory Muscle Strength Training Lowers Blood Pressure and Improves Endothelial Function, NO Bioavailability, and Oxidative Stress in Midlife/Older Adults With Above‐Normal Blood Pressure

2021 ◽  
Author(s):  
Daniel H. Craighead ◽  
Thomas C. Heinbockel ◽  
Kaitlin A. Freeberg ◽  
Matthew J. Rossman ◽  
Rachel A. Jackman ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Older Adults ◽  
Muscle Strength ◽  
Arterial Stiffness ◽  
Endothelial Function ◽  
Systolic Blood Pressure ◽  
High Resistance ◽  
Maximal Inspiratory Pressure ◽  
No Bioavailability ◽  
Inspiratory Muscle Strength

Background High‐resistance inspiratory muscle strength training (IMST) is a novel, time‐efficient physical training modality. Methods and Results We performed a double‐blind, randomized, sham‐controlled trial to investigate whether 6 weeks of IMST (30 breaths/day, 6 days/week) improves blood pressure, endothelial function, and arterial stiffness in midlife/older adults (aged 50–79 years) with systolic blood pressure ≥120 mm Hg, while also investigating potential mechanisms and long‐lasting effects. Thirty‐six participants completed high‐resistance IMST (75% maximal inspiratory pressure, n=18) or low‐resistance sham training (15% maximal inspiratory pressure, n=18). IMST was safe, well tolerated, and had excellent adherence (≈95% of training sessions completed). Casual systolic blood pressure decreased from 135±2 mm Hg to 126±3 mm Hg ( P <0.01) with IMST, which was ≈75% sustained 6 weeks after IMST ( P <0.01), whereas IMST modestly decreased casual diastolic blood pressure (79±2 mm Hg to 77±2 mm Hg, P =0.03); blood pressure was unaffected by sham training (all P >0.05). Twenty‐four hour systolic blood pressure was lower after IMST versus sham training ( P =0.01). Brachial artery flow‐mediated dilation improved ≈45% with IMST ( P <0.01) but was unchanged with sham training ( P =0.73). Human umbilical vein endothelial cells cultured with subject serum sampled after versus before IMST exhibited increased NO bioavailability, greater endothelial NO synthase activation, and lower reactive oxygen species bioactivity ( P <0.05). IMST decreased C‐reactive protein ( P =0.05) and altered select circulating metabolites (targeted plasma metabolomics) associated with cardiovascular function. Neither IMST nor sham training influenced arterial stiffness ( P >0.05). Conclusions High‐resistance IMST is a safe, highly adherable lifestyle intervention for improving blood pressure and endothelial function in midlife/older adults with above‐normal initial systolic blood pressure. Registration URL: https://www.clinicaltrials.gov ; Unique identifier: NCT03266510.

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