Effects of Breaking Up Prolonged Sitting on Cardiovascular Parameters: A systematic Review

Author(s):  
Gustavo Oliveira da Silva ◽  
Luiza Batista Santini ◽  
Breno Quintella Farah ◽  
Antonio Henrique Germano-Soares ◽  
Mariliade Almeida Correia ◽  
...  

AbstractThe aim of this systematic review was to analyze the acute and chronic effects of sitting breaks on cardiovascular parameters. PubMed and Web of Science databases were searched by two independent researchers for relevant studies published until February 2020. Acute or chronic studies reporting the effects of sitting breaks or reduction in sitting time on cardiovascular parameters were examined. The eligibility criteria followed PICOS: Population - Humans ≥ 18 years old; Interventions – Sitting break strategies; Comparisons – Uninterrupted sitting; Outcomes – Cardiovascular parameters (blood pressure, heart rate, ambulatory blood pressure, vascular function, pulse-wave velocity, cerebral blood flow and biomarkers); Study design – Randomized controlled trials, non-randomized non-controlled trials and randomized crossover trials. Forty-five studies were included, where 35 investigated the acute and 10 the chronic effects of sitting breaks or reductions in sitting time. Walking was the main acute study strategy, used in different volumes (1 min 30 s to 30 min), intensities (light to vigorous) and frequencies (every 20 min to every 2 h). Acute studies found improvements on cardiovascular parameters, especially blood pressure, flow-mediated dilation, and biomarkers, whereas chronic studies found improvements mostly on blood pressure. Breaking up or reducing sitting time improves cardiovascular parameters, especially with walking.

2021 ◽  
Vol 24 (1) ◽  
pp. 627-645
Author(s):  
Omid Asbaghi ◽  
Fatemeh Naeini ◽  
Vihan Moodi ◽  
Moein Najafi ◽  
Mina Shirinbakhshmasoleh ◽  
...  

2014 ◽  
Vol 53 (6) ◽  
pp. 1299-1311 ◽  
Author(s):  
Saman Khalesi ◽  
Jing Sun ◽  
Nicholas Buys ◽  
Arash Jamshidi ◽  
Elham Nikbakht-Nasrabadi ◽  
...  

2020 ◽  
Author(s):  
Lisa Te Morenga ◽  
AJ Howatson ◽  
RM Jones ◽  
J Mann

Background: Dietary sugars have been suggested as a cause of obesity, several chronic diseases, and a range of cardiometabolic risk factors, but there is no convincing evidence of a causal relation between sugars and risk factors other than body weight. Objective: We conducted a systematic review and meta-analysis of randomized controlled trials that examined effects of the modification of dietary free sugars on blood pressure and lipids. Design: Systematic searches were conducted in OVID Medline, Embase, Scopus, Cumulative Index to Nursing and Allied Health Literature, and Web of Science databases (to August 2013) to identify studies that reported intakes of free sugars and at least one lipid or blood pressure outcome. The minimum trial duration was 2 wk. We pooled data by using inverse-variance methods with random-effects models. Results: A total of 39 of 11,517 trials identified were included; 37 trials reported lipid outcomes, and 12 trials reported blood pressure outcomes. Higher compared with lower sugar intakes significantly raised triglyceride concentrations [mean difference (MD):0.11 mmol/L; 95% CI: 0.07, 0.15 mmol/L; P < 0.0001], total cholesterol (MD: 0.16 mmol/L; 95% CI: 0.10, 0.24 mmol/L; P < 0.0001), lowdensity lipoprotein cholesterol (0.12 mmol/L; 95% CI: 0.05, 0.19 mmol/L; P = 0.0001), and high-density lipoprotein cholesterol (MD: 0.02 mmol/L; 95% CI: 0.00, 0.03 mmol/L; P = 0.03). Subgroup analyses showed the most marked relation between sugar intakes and lipids in studies in which efforts were made to ensure an energy balance and when no difference in weight change was reported. Potential explanatory factors, including a weight change, in most instances explained <15% of the heterogeneity between studies (I2 = 36-75%). The effect of sugar intake on blood pressure was greatest in trials ≥8 wk in duration [MD: 6.9 mm Hg (95% CI: 3.4, 10.3 mm Hg; P<0.001) for systolic blood pressure and 5.6 mm Hg (95% CI: 2.5, 8.8 mm Hg; P = 0.0005) for diastolic blood pressure]. Conclusions: Dietary sugars influence blood pressure and serum lipids. The relation is independent of effects of sugars on body weight. Protocols for this review were registered separately for effects of sugars on blood pressure and lipids in the PROSPERO International prospective register of systematic reviews as PROSPERO 2012: CRD42012002379 and 2012: CRD42012002437, respectively. © 2014 American Society for Nutrition.


2018 ◽  
Vol 36 (Supplement 1) ◽  
pp. e20
Author(s):  
A. Tzani ◽  
I. Doulamis ◽  
P. Konstantopoulos ◽  
E. Pasiou ◽  
A. Daskalopoulou ◽  
...  

2017 ◽  
Vol 105 (5) ◽  
pp. 1176-1190 ◽  
Author(s):  
Charlotte EL Evans ◽  
Darren C Greenwood ◽  
Diane E Threapleton ◽  
Chris P Gale ◽  
Christine L Cleghorn ◽  
...  

2021 ◽  
Author(s):  
Kamila Shelry Gonçalves ◽  
Ana Carolina Queiroz Godoy Daniel ◽  
José Luiz Tatagiba Lamas ◽  
Henrique Ceretta Oliveira ◽  
Renata Cristina De Campos Pereira Silveira ◽  
...  

UNSTRUCTURED Introduction: Physiotherapy can include both device-guided slow breathing and device-guided slow breathing in the treatment of systemic arterial hypertension. Methods: A systematic search of all published randomized controlled trials on the effects of device-guided and non-device-guided slow breathing on hypertensive patients, without language restriction, will be carried out until January 2020 in nine databases: Pubmed / MEDLINE (Medical Literature Analysis and Retrieval System Online), Latin American and Caribbean Health Sciences Literature (LILACS), EMBASE, Cochrane Central Register of Controlled Trials (CENTRAL), Physiotherapy Evidence Database (PEDro), Cumulative Index to Nursing and Allied Health Literature ( CINAHL), Scopus, Web of Science, Livivo, as well as a search of clinical trial records databases, CT.GOV (Clinical trials.Gov), and bases for the Open Grey gray literature, Gray Literature Report, ProQuest Central (Citation, Abstract or Indexing and Dissertations and Theses). In all of these databases, potentially eligible studies including completed and ongoing ECAs were researched. The quality assessment of the included studies will be conducted using the Cochrane Risk of Bias Tool for Randomized Trials. The overall quality of the evidence for each outcome will be assessed using the Grading of Recommendations, Development and Evaluation (GRADE) system. Discussion: This systematic review will provide a summary of the current evidence on the effects of both device-guided slow breathing and device-guided slow breathing on blood pressure levels. This information can contribute to decision making by health professionals related to the use of these interventions in hypertensive patients. Following the guidelines, this systematic review protocol was registered with the Prospective International Register of Systematic Reviews (PROSPERO) number CRD42020147554.


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