Neil McCartney

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One hundred healthy subjects (50 male and 50 female), selected to provide an even distribution of age (15 to 71 yr) and height (165 to 194 cm in males and 152 to 176 cm in females), underwent a progressively incremental (100 kpm/min each min) exercise test to a symptom-limited maximum. Measurements were made of O2 intake and CO2 output, ventilation and(More)
PURPOSE This study examined the effects of isometric handgrip training on resting arterial blood pressure, heart rate variability, and blood pressure variability in older adults with hypertension. METHODS Nine subjects performed four 2-min isometric handgrip contractions at 30% of the maximum voluntary contraction force, 3 d.wk(-1) for 10 wk, and eight(More)
Maximal weight-lifting performance, isometric strength, isokinetic torque, whole muscle and individual fiber cross-sectional areas, and muscle evoked contractile properties were assessed in 14 elderly males before and after 12 wk of weight-lifting training. Dynamic elbow flexion training of one arm resulted in a significant 48% mean increase in the maximal(More)
Brachial arterial pressure was directly recorded in 31 healthy male volunteers through protocols examining the effects of the Valsalva maneuver, muscle size and strength, contraction force, contraction type (concentric, isometric, eccentric), changes in joint angle, and muscle fatigue on the blood pressure response to resistance exercise. Weight lifting at(More)
OBJECTIVE The aim was to examine the cardiac autonomic responses to orthostatic stress and recovery from steady state exercise in endurance trained athletes and sedentary subjects. METHODS The power spectrum of heart rate variability was measured before and after exercise in 10 male long distance runners and 14 male sedentary control subjects. Both groups(More)
This randomized controlled trial was designed to investigate the effect of a 6-month home-based exercise program versus control (usual activities) on quality of life for postmenopausal women with osteoporosis who had at least one vertebral fracture. Twelve-month assessments of outcomes were completed to determine if women would continue exercising with(More)
PURPOSE Research has demonstrated the efficacy of isometric handgrip (IHG) training to attenuate resting blood pressure. These studies have relied on the use of programmable digital handgrips for training. This study aimed to determine the effectiveness of simple, inexpensive spring-loaded handgrip devices in producing hypotensive effects. METHODS The(More)
Objectives:To systematically develop evidence-informed physical activity guidelines to improve physical fitness in people with spinal cord injury (SCI).Setting:This study was conducted in CanadaMethods:The Appraisal of Guidelines, Research and Evaluation II guideline development protocol was used to develop exercise guidelines to improve physical capacity(More)
Individuals with spinal cord injury (SCI) often experience bone loss and muscle atrophy. Muscle atrophy can result in reduced metabolic rate and increase the risk of metabolic disorders. Sublesional osteoporosis predisposes individuals with SCI to an increased risk of low-trauma fracture. Fractures in people with SCI have been reported during transfers from(More)
UNLABELLED BACKGROUND PATIENTS: with chronic airflow obstruction are often limited by muscle fatigue and weakness. As exercise rehabilitation programmes have produced modest improvements at best a study was designed to determine whether specific muscle training techniques are helpful. METHODS Thirty four patients with chronic airflow limitation (forced(More)