scholarly journals Objectively Assessed Daily Steps—Not Light Intensity Physical Activity, Moderate-to-Vigorous Physical Activity and Sedentary Time—Is Associated With Cardiorespiratory Fitness in Patients With Schizophrenia

2019 ◽  
Vol 10 ◽  
Author(s):  
John A. Engh ◽  
Jens Egeland ◽  
Ole A. Andreassen ◽  
Gry Bang-Kittilsen ◽  
Therese T. Bigseth ◽  
...  
Keyword(s):  
Physical Activity ◽  
Light Intensity ◽  
Cardiorespiratory Fitness ◽  
Sedentary Time ◽  
Vigorous Physical Activity ◽  
Intensity Physical Activity

Light-Intensity Physical Activity and All-Cause Mortality

2016 ◽  
Vol 31 (4) ◽  
pp. 340-342 ◽  
Author(s):  
Paul D. Loprinzi
Keyword(s):  
Physical Activity ◽  
Light Intensity ◽  
Mortality Risk ◽  
Weight Status ◽  
Vigorous Physical Activity ◽  
National Sample ◽  
Poverty Level ◽  
All Cause Mortality ◽  
Intensity Physical Activity

Purpose. Research demonstrates that moderate-to-vigorous physical activity (MVPA) is associated with a reduced risk of all-cause mortality. Few studies have examined the effects of light-intensity physical activity on mortality. Therefore, the purpose of this study was to examine the association between objectively measured light-intensity physical activity and all-cause mortality risk. Design. Longitudinal. Setting. National Health and Nutrition Examination Survey 2003–2006 with follow-up through December 31, 2011. Subjects. Five thousand five hundred seventy-five U.S. adults. Measures. Participants wore an accelerometer for at least 4 days and completed questionnaires to assess sociodemographics and chronic disease information, with blood samples taken to assess biological markers. Follow-up mortality status was assessed via death certificate data from the National Death Index. Analysis. Cox proportional hazard model. Results. After adjusting for accelerometer-determined MVPA, age, gender, race-ethnicity, cotinine, weight status, poverty level, C-reactive protein, and comorbid illness, for every 60-minute increase in accelerometer-determined light-intensity physical activity, participants had a 16% reduced hazard of all-cause mortality (hazard ratio = .84; 95% confidence interval: .78–.91; p < .001). Conclusion. In this national sample of U.S. adults, light-intensity physical activity was inversely associated with all-cause mortality risk, independent of age, MVPA, and other potential confounders. In addition to MVPA, promotion of light-intensity physical activity is warranted.

scholarly journals Physical Activity Levels of Adolescents with Type 1 Diabetes Physical Activity in T1D

2017 ◽  
Vol 29 (2) ◽  
pp. 213-219 ◽  
Author(s):  
Valderi Abreu de Lima ◽  
Luis Paulo Gomes Mascarenhas ◽  
Juliana Pereira Decimo ◽  
William Cordeiro de Souza ◽  
Anna Louise Stellfeld Monteiro ◽  
...  
Keyword(s):  
Physical Activity ◽  
Type 1 Diabetes ◽  
Cardiorespiratory Fitness ◽  
Vigorous Physical Activity ◽  
Inverse Correlation ◽  
Activity Levels ◽  
Z Score ◽  
Intensity Physical Activity ◽  
Vigorous Intensity

The aim of this study was to evaluate the level of physical activity and cardiorespiratory fitness in teenagers with type 1 diabetes mellitus (T1D) in comparison with healthy scholar participants. Total of 154 teenagers (T1D = 45 and CON = 109). Height, weight, cardiorespiratory fitness (VO2max), and the level of physical activity by the Bouchard’s Physical Activity Record were measured, and glycated hemoglobin (HbA1c) in T1D. The VO2max was lower in the T1D (38.38 ± 7.54) in comparison with the CON (42.44 ± 4.65; p < .05). The VO2max had correlation with the amount of time of moderate-to-vigorous physical activity (r = .63; p = .0001) and an inverse correlation with sedentary activities (r= -0.46; p = .006). In the T1D the levels of HbA1c had an inverse correlation with the amount of time of moderate-to-vigorous physical activity (r= -0.34; p = .041) and correlation with the BMI z-score (r = .43; p = .017). Only 37,8% of the participants in the T1D reached the adequate amount of daily moderate-to-vigorous intensity physical activity, in the CON 81,7% reached the WHO’s recommendation. Conclusion: T1D had less cardiorespiratory capacity then healthy controls, the teenagers of T1D with lower BMI z-score and that dedicated a greater time in moderate-to-vigorous intensity physical activity demonstrated a better glycemic control.

scholarly journals Cardiorespiratory Fitness Is Associated with Hard and Light Intensity Physical Activity but Not Time Spent Sedentary in 10–14 Year Old Schoolchildren: The HAPPY Study

PLoS ONE ◽  
2013 ◽  
Vol 8 (4) ◽  
pp. e61073 ◽  
Author(s):  
Sarah J. Denton ◽  
Michael I. Trenell ◽  
Thomas Plötz ◽  
Louise A. Savory ◽  
Daniel P. Bailey ◽  
...  
Keyword(s):  
Physical Activity ◽  
Light Intensity ◽  
Cardiorespiratory Fitness ◽  
Intensity Physical Activity

scholarly journals Striking the Right Balance: Evidence to Inform Combined Physical Activity and Sedentary Behavior Recommendations

2021 ◽  
pp. 1-7
Author(s):  
Sebastien F.M. Chastin ◽  
Duncan E. McGregor ◽  
Stuart J.H. Biddle ◽  
Greet Cardon ◽  
Jean-Philippe Chaput ◽  
...  
Keyword(s):  
Physical Activity ◽  
Light Intensity ◽  
Health Outcomes ◽  
Sedentary Behavior ◽  
Sedentary Time ◽  
World Health ◽  
Accelerometer Data ◽  
All Cause Mortality ◽  
Intensity Physical Activity ◽  
Vigorous Intensity

Background: Crucial evidence gaps regarding: (1) the joint association of physical activity and sedentary time with health outcomes and (2) the benefits of light-intensity physical activity were identified during the development of recommendations for the World Health Organization Guidelines on physical activity and sedentary behavior (SB). The authors present alternative ways to evidence the relationship between health outcomes and time spent in physical activity and SB and examine how this could be translated into a combined recommendation in future guidelines. Methods: We used compositional data analysis to quantify the dose–response associations between the balance of time spent in physical activity and SB with all-cause mortality. The authors applied this approach using 2005–2006 National Health and Nutrition Examination Survey accelerometer data. Results: Different combinations of time spent in moderate- to vigorous-intensity physical activity, light-intensity physical activity, and SB are associated with similar all-cause mortality risk level. A balance of more than 2.5 minutes of moderate- to vigorous-intensity physical activity per hour of daily sedentary time is associated with the same magnitude of risk reduction for all-cause mortality as obtained by being physically active according to the current recommendations. Conclusion: This method could be applied to provide evidence for more flexible recommendations in the future with options to act on different behaviors depending on individuals’ circumstances and capacity.

Sex and light physical activity impact popliteal, but not brachial artery flow-mediated dilation in physically active young adults

2020 ◽  
Vol 45 (12) ◽  
pp. 1387-1395 ◽  
Author(s):  
Jarrett A. Johns ◽  
Myles W. O’Brien ◽  
Amanda Bungay ◽  
Derek S. Kimmerly
Keyword(s):  
Physical Activity ◽  
Light Intensity ◽  
Cardiorespiratory Fitness ◽  
Peak Oxygen Consumption ◽  
Flow Mediated Dilation ◽  
Activity Levels ◽  
Physically Active ◽  
Physical Activity Levels ◽  
Intensity Physical Activity ◽  
Baseline Diameter

When controlling for baseline diameter, males have greater brachial flow-mediated dilation (BA-FMD) responses than females. It is unclear whether sex differences in baseline diameter also influences popliteal FMD (POP-FMD), which may be impacted by cardiorespiratory fitness and physical activity levels. We hypothesized that males would exhibit greater BA-FMD and POP-FMD when allometrically scaled to baseline diameter. FMD (ultrasonography), cardiorespiratory fitness (indirect calorimetry), and objectively measured physical activity were assessed in males (n = 13; age, 23 ± 3 years; peak oxygen consumption, 48.0 ± 7.1 mL·kg−1·min−1) and females (n = 13; age, 24 ± 2 years; peak oxygen consumption, 36.8 ± 6.0 mL·kg−1·min−1). Both groups had similarly high levels of moderate-to-vigorous intensity physical activity (503 ± 174 vs. 430 ± 142 min·week−1, p = 0.25). However, males were more aerobically fit (p < 0.001) and females accumulated more light-intensity physical activity (182 ± 67 vs. 127 ± 53 min·week−1, p = 0.03). Relative and allometrically scaled BA-FMD were similar (both, p ≥ 0.09) between sexes. In contrast, relative (6.2% ± 1.0% vs. 4.6% ± 1.4%, p = 0.001) and scaled (6.8% ± 1.7% vs. 4.7% ± 1.7%, p = 0.03) POP-FMD were greater in females. Relative POP-FMD was related to light-intensity physical activity in the pooled sample (r = 0.43; p = 0.04). However, the enhanced relative POP-FMD in females remained after adjusting for higher light-intensity physical activity levels (p = 0.01). Young females have enhanced popliteal, but not brachial, endothelial health than males with similar moderate-to-vigorous intensity physical activity levels and higher cardiorespiratory fitness. Novelty In physically active adults, females had greater POP-FMD but not BA-FMD than males. The enhanced POP-FMD in females was not related to greater vascular smooth muscle sensitivity to nitric oxide or their smaller baseline diameters. POP-FMD was associated with light physical activity levels in the pooled sample.

Does objectively measured light-intensity physical activity reduce the risk of cardiovascular mortality? A meta-analysis

2020 ◽  
Author(s):  
Shanhu Qiu ◽  
Xue Cai ◽  
Lijing Jia ◽  
Zilin Sun ◽  
Tongzhi Wu ◽  
...  
Keyword(s):  
Physical Activity ◽  
Light Intensity ◽  
Cohort Studies ◽  
Cardiovascular Mortality ◽  
Meta Analysis ◽  
Vigorous Physical Activity ◽  
Physical Activity Guidelines ◽  
Metabolic Equivalents ◽  
Intensity Physical Activity ◽  
Objectively Measured

Abstract Aims Current physical activity guidelines emphasize little on light-intensity physical activity (LPA) in terms of reducing the risk of cardiovascular mortality. This meta-analysis aimed to bridge this gap by assessing their association using objectively measured LPA data. Methods and results Databases of PubMed and Scopus were searched to April 2020 for prospective cohort studies that reported the association of LPA assessed by activity monitors with the risk of cardiovascular mortality in the general population. Multivariable-adjusted hazard ratios (HRs) with 95% confidence intervals (CIs) were pooled using a random-effects model. Dose–response and subgroup analyses were also performed. Six cohort studies with seven datasets enrolling 13 960 participants were included. LPA was all measured by accelerometers. The HR of LPA per 30 min/day for cardiovascular mortality was pooled to be 0.80 (95% CI 0.67–0.96). This association was non-linearly shaped (Pnonlinearity &lt; 0.01) and unaffected by sex difference. Moreover, substituting LPA for sedentary time of 30 min/day lowered the risk of cardiovascular mortality by 16% (95% CI 0.73–0.96). Results showed further that LPA was inferior to moderate-to-vigorous physical activity in reducing the risk of cardiovascular mortality when performed with an equal time-length set at 30 min/day (HR 0.83 vs. 0.54, Pcomparison = 0.046), but became comparable if at an equal activity-amount set at 150 metabolic equivalents-min/day (HR 0.67 vs. 0.54, Pcomparison = 0.41). Conclusion LPA shows potential in reducing the risk of cardiovascular mortality, and interventions targeting at LPA improvement are worth being encouraged.

scholarly journals Impact of 3-Month Changes in Sedentary Time and Light-Intensity Physical Activity on Subjective Sleep Quality

2018 ◽  
Vol 50 (5S) ◽  
pp. 711
Author(s):  
Miranda L. Larouche ◽  
Meynard John L. Toledo ◽  
Sarah L. Mullane ◽  
Kristina Hasanaj ◽  
Sarah A. Rydell ◽  
...  
Keyword(s):  
Physical Activity ◽  
Light Intensity ◽  
Sleep Quality ◽  
Sedentary Time ◽  
Subjective Sleep Quality ◽  
Subjective Sleep ◽  
Intensity Physical Activity
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