99 Insomnia Symptoms and Cardiorespiratory Fitness—Strand et al INTRODUCTION Insomnia is a self-reported condition that includes difficulty falling asleep or remaining asleep.1,2 Insomnia is common in patients with cardiovascular disease and a growing body of evidence suggests that insomnia is associated with an increased risk of coronary heart disease,3-5 but the underlying mechanisms for this...

The present investigation examined the sexual dimorphic patterns of cardiorespiratory fitness to working memory in preadolescent children (age range: 7.7-10.9). Data were collected in three separate studies (Study 1: n = 97, 42 females; Study 2: n = 95, 45 females; Study 3: n = 84, 37 females). All participants completed a cardiorespiratory fitness assessment in addition to a specific measure o...

BACKGROUND The present study investigated the relationship between cardiorespiratory fitness and executive functioning in pediatric brain tumor survivors who received cranial radiation. This population is known to show executive dysfunction and lower rates of aerobic exercise compared to peers. PROCEDURE Nine adolescent survivors of pediatric posterior fossa tumor completed an n-back working ...

BACKGROUND Previous research has shown that ingestion of substances that enhance the body's hydrogen ion buffering capacity during high intensity exercise can improve exercise performance. The present study aimed to determine whether the chronic ingestion of an alkalizing supplement, which purports to enhance both intracellular and extracellular buffering capacity, could impact cardiorespirator...

In this work we present a quantitative approach to the analysis of cardiorespiratory synchronization, which is a newly discovered phenomenon. The primary aim of this stu+ is to determine whether cardiorespiratory synchronization is a real phenomenon or a random one. We utilized the surrogate data analysis approach. A surrogate data set was constructed ji-om recordings of ECG and respiration obt...

Cardiac and respiratory rhythms reveal transient phases of phase-locking which were proposed to be an important aspect of cardiorespiratory interaction. The aim of this study was to quantify cardio-respiratory phase-locking in obstructive sleep apnea (OSA). We investigated overnight polysomnography data of 248 subjects with suspected OSA. Cardiorespiratory phase-coupling was computed from the R...

BACKGROUND UK fire services have differing practices relating to the use of a cardiorespiratory fitness standard as a selection criterion for recruits. AIMS To establish whether a reduction in, or elimination of, a defined cardiorespiratory standard for firefighter recruitment impacted on a number of occupational and health-related outcomes. METHODS Data were collected on firefighter recrui...

BACKGROUND Children with cerebral palsy (CP) have poor cardiorespiratory fitness in comparison to their peers with typical development, which may be due to low levels of physical activity. Poor cardiorespiratory fitness may contribute to increased cardiometabolic risk. PURPOSE The aim of this study was to determine the association between sedentary behaviour, physical activity and cardiorespi...

OBJECTIVES To investigate gender-specific relationships between cardiorespiratory fitness and factors that predict the development of diabetes and to identify the risk factors that predict fasting plasma glucose and 2-hour plasma glucose levels. INTRODUCTION Different risk factors (e.g., low cardiorespiratory fitness) may cause elevated plasma glucose levels in men compared to women. Therefor...

Over the past several decades, a substantial amount of research has examined how cardiorespiratory physiology supports the diverse activities performed throughout the life cycle of Pacific salmon, genus Oncorhynchus. Pioneering experiments emphasized the importance of aerobic scope in setting the functional thermal tolerance for activity in fishes. Variation in routine metabolism can have impor...