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Physical activity is the strongest predictor of all-cause mortality in patients with COPD: a prospective cohort study.

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TLDR
In this paper, the authors determined the prognostic value of objectively measured physical activity in comparison with established predictors of mortality and evaluated the prognosis value of noninvasive assessments of cardiovascular status, biomarkers of systemic inflammation, and adipokines.
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This article is published in Chest.The article was published on 2011-08-01. It has received 733 citations till now. The article focuses on the topics: Prospective cohort study & Cohort.

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Does neighborhood built environment support older adults' daily steps differ by time of day?

TL;DR: Wang et al. as discussed by the authors examined the association between neighborhood environmental attributes and average step counts at different times of the day and found that neighborhoods with high sidewalk availability, access to destinations, and public transportation accessibility may encourage older adults' walking behavior during morning.
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Energy expenditure per minute in different activities and body positions and its association with the classification as physically active or inactive in daily life in individuals with COPD.

TL;DR: In this paper, the authors compare energy expenditure (EE)/minute walking and in different body postures in individuals with COPD and investigate if EE/minute walking is a predictor of their classification as physically active or inactive.

Cardiopulmonary exercise testing, prehabilitation, and Enhanced Recovery After Surgery (ERAS) Test d'effort cardiopulmonaire, preadaptation et recuperation rapide apres la chirurgie (RRAC)

TL;DR: Perioperative CPET is finding an increasing spectrum of roles, including risk evaluation, collaborative decision-making, personalized care, monitoring interventions, and guiding prescription of prehabilitation.
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Reliability of the Thai version of the International Physical Activity Questionnaire Short Form in chronic obstructive pulmonary disease.

TL;DR: Although there are concerns about the agreement for classification of physical activity, the IPAQ-SF may be a useful if not definitive tool for assessing physical activity in COPD.
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Clinical impact of forced vital capacity on exercise performance in patients with chronic obstructive pulmonary disease.

TL;DR: In this paper, the authors investigated the relationship between reduced forced vital capacity (FVC) and 6-minute walk distance (6MWD) based on COPD severity, and they used a cubic spline model to demonstrate the nonlinear relationship between predicted FVC% and 6MWD in moderate and severe to very severe COPD patients.
References
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Lung volumes and forced ventilatory flows

TL;DR: Assessing the total lung capacity is indispensable in establishing a restrictive ventilatory defect or in diagnosing abnormal lung distensibility, as may occur in patients …
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The Body-Mass Index, Airflow Obstruction, Dyspnea, and Exercise Capacity Index in Chronic Obstructive Pulmonary Disease

TL;DR: The BODE index, a simple multidimensional grading system, is better than the FEV1 at predicting the risk of death from any cause and from respiratory causes among patients with COPD.
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Salmeterol and fluticasone propionate and survival in chronic obstructive pulmonary disease.

TL;DR: The reduction in death from all causes among patients with COPD in the combination-therapy group did not reach the predetermined level of statistical significance, and there were significant benefits in all other outcomes among these patients.
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