Symptoms Reported by Young Adults With Asthma During Wildfire Smoke Season.

Purpose: The purpose of this article is to evaluate the relationship between exposure to poor air quality (AQ) and self-reported symptoms among young adults with asthma during wildfire smoke season.

Methods: Sixty seven young adults (aged 18-26 years) completed the Asthma Control Test and reported asthma symptoms at three time points (baseline, 4 weeks, and 8 weeks) during wildfire season as part of a clinical trial. Bivariate correlations between Asthma Control Test and AQ measures were examined followed by predictive linear regression.

Ventilatory Responses to Exercise by Age, Sex, and Health Status.

An understanding of the normal pulmonary responses to incremental exercise is requisite for appropriate interpretation of findings from clinical exercise testing. The purpose of this review is to provide concrete information to aid the interpretation of the exercise ventilatory response in both healthy and diseased populations. We begin with an overview of the normal exercise ventilatory response to incremental exercise in the healthy, normally trained young-to-middle aged adult male.

Artificial neural network identification of exercise expiratory flow-limitation in adults.

Identification of ventilatory constraint is a key objective of clinical exercise testing. Expiratory flow-limitation (EFL) is a well-known type of ventilatory constraint. However, EFL is difficult to measure, and commercial metabolic carts do not readily identify or quantify EFL.

Effect of exercise-induced bronchoconstriction on the configuration of the maximal expiratory flow-volume curve in adults with asthma.

We determined the effect of exercise-induced bronchoconstriction (EIB) on the shape of the maximal expiratory flow-volume (MEFV) curve in asthmatic adults. The slope-ratio index (SR) was used to quantitate the shape of the MEFV curve. We hypothesized that EIB would be accompanied by increases in SR and thus increased curvilinearity of the MEFV curve.

Feasibility and acceptability of home monitoring with portable spirometry in young adults with asthma.

Objective: Self-monitoring asthma control is a key component of asthma management. Few studies have reported usability and acceptability of portable spirometry among young adults with asthma. Portable spirometry offers a practical solution to monitoring airway narrowing at home.