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Results 101 - 150 of 1093
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Billat Véronique L - - 2012
Despite the increasing popularity of marathon running, there are no data on the responses of stroke volume (SV) and cardiac output (CO) to exercise in this context. We sought to establish whether marathon performance is associated with the ability to sustain high fractional use of maximal SV and CO (i.e, ...
Ruf Katharina C - - 2012
The objective of this study was to validate physical activity questionnaires for cystic fibrosis (CF) against accelerometry and cycle ergometry. 41 patients with CF (12-42 years) completed the Habitual Activity Estimation Scale (HAES), the 7-Day Physical Activity Recall questionnaire (7D-PAR) and the Lipid Research Clinics questionnaire (LRC) and performed an ...
Furness Trentham - - 2012
Chronic obstructive pulmonary disease (COPD) is a respiratory condition characterised by dyspnoea, excessive sputum production, chronic cough, bronchitis and emphysema. Functionally, exercise tolerance is poor for people with COPD and is linked to difficulty in performing daily tasks. More specifically, exercise difficulties are due partly to dyspnoea and lower limb ...
Snoer Martin - - 2012
Insulin resistance has been linked to exercise intolerance in heart failure patients. The aim of this study was to assess the potential role of coronary flow reserve (CFR), endothelial function and arterial stiffness in explaining this linkage. 39 patients with LVEF < 35% (median LV ejection fraction (LVEF) 31 (interquartile ...
Cordoni Priscila Kessar - - 2012
To characterize the presence, extent, and patterns of dynamic hyperinflation (DH) during treadmill exercise testing in patients with moderate to severe COPD. This was a cross-sectional study involving 30 non-hypoxemic patients (FEV1= 43 ± 14% of predicted) who were submitted to a cardiopulmonary exercise test on a treadmill at a ...
Smits Jasper A J - - 2012
Although cigarette smoking is a leading cause of death and disability in the United States (US), over 40 million adults in the US currently smoke. Quitting smoking is particularly difficult for smokers with certain types of psychological vulnerability. Researchers have frequently called attention to the relation between smoking and anxiety-related ...
Williamson Wilby W Medical Research Council Epidemiology Unit, Institute of Metabolic Science, Box 285, Addenbrooke's Hospital, Cambridge CB2 0QQ, - - 2012
Background. Oxygen uptake efficiency slope (OUES) is a reproducible, objective marker of cardiopulmonary function. OUES is reported as being relatively independent of exercise intensity. Practical guidance and criteria for reporting OUES from submaximal tests has not been established. Objective. Evaluate the use of respiratory exchange ratio (RER) as a secondary ...
Leprêtre Pierre-Marie - - 2012
To investigate the effects of fatigue and metabolite accumulation on the postexercicse parasympathetic reactivation, 11 long-sprint runners performed on an outdoor track an exhaustive 400 m long sprint event and a 300 m with the same 400 m pacing strategy. Time constant of heart rate recovery (HRRτ), time (RMSSD), and frequency (HF, and ...
Molina Renato - - 2012
This study investigated the association between Isokinetic peak torque (PT) of quadriceps and the corresponding peak rate of force development (peak RFD) during the recovery of eccentric exercise. Twelve untrained men (aged 21·7 ± 2·3 year) performed 100 maximal eccentric contractions for knee extensors (10 sets of 10 repetitions with a 2-min rest ...
Duncan Michael J - - 2013
Abstract The efficacy of caffeine ingestion in enhancing aerobic performance is well established. However, despite suggestions that caffeine may enhance resistance exercise performance, research is equivocal on the effect of acute caffeine ingestion on resistance exercise performance. It has also been suggested that dampened perception of perceived exertion and pain ...
Imai Daiki - - 2011
It is known that external cooling of body regions involved in exercise, prior to exercise, decreases anaerobic performance. However, there have been no studies reporting the effects of whole body skin surface cooling before exercise on maximal anaerobic capacity. In order to clarify the effects, we compared power output during ...
Pritchard Mary E - - 2012
Few studies have examined whether factors predicting obligatory exercise differ by gender. 303 participants completed the Obligatory Exercise Questionnaire and the Reason for Exercise Inventory. All variables correlated significantly. However, the correlation between exercising for fitness and obligatory exercise was significantly stronger in women than men. In women, obligatory exercise ...
Garcin M - - 2011
The purpose of this study was to evaluate the validity of the estimated time limit scale (ETL), which deals with a subjective prediction of how long the current exercise intensity can be maintained, for regulating exercise intensity using typical estimation-production procedure. Thirty-six male athletes performed a continuous incremental test and ...
Vanwormer Jeffrey J - - 2011
: The impact of stress in conjunction with lifestyle factors on workplace productivity is understudied, thus the relationship between these variables was examined. : Negative binomial regression was used to test the cross-sectional association between stress and productivity loss in a sample of 2823 adults. : After body mass index ...
Kitareewan Walaiporn - - 2011
To study the effects of moderate-intensity treadmill walking exercise on the biochemical bone markers in the menstruating and menopausal women. Experimental study. Setting: Department of Rehabilitation Medicine, King Chulalongkorn Memorial Hospital. Twenty-two healthy volunteer women at the age of 30-70 were recruited: 11 menstruating women and 11 menopausal women. The ...
Veit Helen Zoe - - 2011
Life expectancy and chronic disease rates both rose dramatically in the United States during the first third of the twentieth century. As a result of this concurrence, Americans in this era increasingly thought about things they could do to extend their own lives, especially eating less, exercising more, and limiting ...
Carter Christy S - - 2012
Caloric restriction and physical exercise have proven beneficial against age-associated changes in body composition and declining physical performance; however, little is known regarding what benefit these interventions might have when initiated late in life. The study of mimetics of diet and exercise and the combination thereof may provide additional treatments ...
Moore D M - - 2011
This case report outlines the diagnoses of a rare myophosphorylase deficiency (McArdle Syndrome) in a unique way. A set of characteristic values from a Cardiopulmonary Exercise Test (CPET) combined with a typical patient history pointed to a failure of the glycolytic pathway in the skeletal muscle. McArdle Syndrome was confirmed ...
Stojanovic Marko D - - 2011
Stretching exercises are regularly recommended as a part of football-training sessions and in preparation for competition. There is little sound empirical evidence, however, to substantiate the role of stretching exercises and consequently increased flexibility on injury prevention in football. Furthermore, in the last decade or so, fundamental research has shed ...
Finch Caroline F - - 2011
Objective To identify important considerations for the delivery of an exercise training intervention in a randomised controlled trial to maximise subsequent participation in that randomised controlled trial and intervention uptake. Design A cross-sectional survey, with a theoretical basis derived from the Health Belief Model (HBM) and the Reach, Efficacy/Effectiveness, Adoption, ...
Kyparos Antonios - - 2011
Antioxidant supplementation has been suggested to prevent exercise-induced muscle injury, but the findings are inconsistent. The objective of this study was to investigate the potential protective role of vitamin E treatment against eccentric exercise-induced muscle injury by examining morphological and functional alterations in rat soleus muscle after downhill running as ...
Gray Jennifer B - - 2011
Health communication interventions encouraging exercise may aid in mitigating the obesity crisis in the United States. Although much research has investigated behavioral predictors of exercise, little work has explored message characteristics most persuasive in the exercise context. The purpose of this study, therefore, was to test a message strategy drawing ...
Greenstein Jay S - - 2011
Hamstring injuries are a common occurrence among professional football cheerleaders. The purpose of this study is to identify the effects of an eccentric, closed-chain hamstring exercise intervention on hamstring injury-associated pain during the course of the football season among professional football cheerleaders. Forty-three female cheerleaders participated in an eccentric, closed-chain ...
Phillips Ceib - - 2011
Sensory retraining teaches the patient to ignore or blot out postinjury unpleasant orofacial sensations to optimally tune into and decipher the weakened and damaged signals from the tissues. Sensory retraining is a simple, inexpensive, noninvasive exercise program, which initiated shortly after injury, can lessen the objectionable impression of orofacial altered ...
Levett Denny Z DZ Centre for Altitude Space and Extreme Environment Medicine, Portex Unit, UCL Institute of Child Health, 30 Guilford Street, London, WC1N 1EH, - - 2011
Lowland residents adapt to the reduced oxygen availability at high altitude through a process known as acclimatisation, but the molecular changes underpinning these functional alterations are not well understood. Using an integrated biochemical/whole-body physiology approach we here show that plasma biomarkers of NO production (nitrite, nitrate) and activity (cGMP) are ...
Maffulli Nicola - - 2011
Sport participation confers many varied benefits in children and adolescents, such as self-esteem, confidence, team play, fitness, agility and strength. Nevertheless, the age of initiation of intense training is decreasing and programmes which expose children to excessive amounts of exercise increase the risk of injury. We review sports injuries in ...
Medina Johnna L - - 2011
The present investigation examined the relation between exercise intensity and alcohol use coping motives among trauma-exposed adults. Participants were 114 adults (58 women; M(age)=22.31 years, SD=8.89) who reported exposure to at least one traumatic event (American Psychiatric Association, 2000) and alcohol use in the past 30 days. Partially consistent with ...
Bruner Mark W - - 2011
This study examined the moderating role of gender on the team building (TB)/perceived effort relationship in an exercise setting. Youths (n=100) who participated in either a TB or control group exercise setting completed a measure of perceived effort prior to and following a TB intervention. A 2 (group)×2 (gender) ANCOVA ...
Vancini Rodrigo Luiz - - 2010
We evaluated physiological and electroencephalographic responses during a cardiopulmonary exercise test (CPET) in people with epilepsy. Behavioral outcomes of people with epilepsy were also compared with those of healthy controls. Thirty-eight subjects (19 people with epilepsy and 19 controls) participated in this study. Poor outcomes in the behavioral analyses (habitual ...
Klein Diane A - - 2010
To use a Progressive Ratio (PR) computerized "work" paradigm to measure course and correlates of exercise motivation in in-patients with Anorexia Nervosa (AN). Sixteen inpatients with AN participated in a PR task assessing the relative reinforcing effect of two different increments of cash versus the opportunity to exercise for upto ...
Clark Phillip G - - 2011
The Study of Exercise and Nutrition in Older Rhode Islanders (SENIOR) Project II is an intervention study to promote the maintenance of both exercise and healthful eating in older adults. It is the second phase of an earlier study, SENIOR Project I, that originally recruited 1277 community-dwelling older adults to ...
Faheem Mohammad - - 2010
Higher BMI in child hood is also associated with an increase risk for coronary heart disease in adulthood. Impaired glucose tolerance is highly prevalent in children and adolescents with severe obesity. Positive correlations between BMI and glucose, lipids and BP have previously been reported. The objective of this study was ...
Leotti Lauren A - - 2010
Belief in one's ability to exert control over the environment and to produce desired results is essential for an individual's wellbeing. It has repeatedly been argued that perception of control is not only desirable, but is also probably a psychological and biological necessity. In this article, we review the literature ...
August Kristin J - - 2011
Differences in health behaviors may be important contributors to racial/ethnic disparities in the health status of adults. Studies to date have not compared whether there are health behavior differences in exercise and dietary behaviors among middle-age and older adults in the four largest racial/ethnic categories. To investigate racial/ethnic differences in ...
Peláez Sandra - - 2010
Coronary heart disease (CHD) is a leading cause of death in the Western world. Although the benefits of exercise as a health behavior are widely known, the majority of CHD patients fail to adhere to an exercise program. The availability of social networks has been shown to be related to ...
Walker Susan Noble - - 2010
In the Wellness for Women Project, a randomized-by-site 1-year controlled clinical trial, the efficacy of generic newsletters and newsletters tailored on Health Promotion Model behavior-specific cognitions, eating behavior, and activity behavior were compared among 225 women aged 50 to 69 years. The purpose of this study was to compare the ...
Taranis Lorin - - 2011
To explore the associations between specific elements of compulsive exercise and both eating-disordered cognitions and eating-disordered behaviors in a nonclinical sample of young women. A sample of young women (n = 498) completed self-report measures of eating pathology (The Eating Disorders Examination Questionnaire) and a relatively new measure of Compulsive ...
Kroll Chantal - - 2011
The Transtheoretical Model of behavior change (TTM) postulates that behavior change is a process involving progress through five distinct stages of change (SOC). One of the key components for progress to a later stage is decisional balance (pros and cons of changing to the target behavior). The goal of the ...
Conner Mark - - 2010
Action planning promotes exercise behavior and mediates intention-behavior relationships. The aim of this study is to provide correlational and experimental tests of action planning as mediator of intention-exercise behavior relationships controlling for Theory of Planned Behavior variables and past behavior. In study 1 (N = 777), young adults completed questionnaires ...
Murru Elisa C - - 2010
This experiment examined the effects of a possible selves intervention on self-regulatory efficacy and exercise behavior among 19 men and 61 women (M age = 21.43 years, SD = 3.28) who reported exercising fewer than 3 times per week. Participants were randomly assigned to a control condition, a hoped-for possible ...
Jelalian Elissa - - 2010
To evaluate the efficacy of behavioral weight control intervention with a peer-enhanced activity intervention versus structured aerobic exercise in decreasing body mass index (BMI) and z-BMI in overweight adolescents. Participants were randomized to 1 of 2 group-based treatment conditions: (1) cognitive behavioral treatment with peer-enhanced adventure therapy or (2) cognitive ...
Shields Nora - - 2011
Negative attitudes of physiotherapists may prevent them from implementing exercise as an intervention among people with disabilities. The aim of this study was to examine whether physiotherapy student attitudes towards the barriers to exercise for adolescents with Down syndrome changed as a result of participating in a 10-week exercise programme. ...
Kim Chun-Ja - - 2010
BACKGROUND: Although regular exercise has been recommended to reduce the risk of cardiovascular disease (CVD) among people with metabolic syndrome, little information is available about psychobehavioral strategies in this population. OBJECTIVE: The purpose of this study was to identify the stages, processes of change, decisional balance, and self-efficacy of exercise ...
Schmeichel Brandon J BJ Department of Psychology, Texas A&M University, College Station, TX 77843-4235, USA. - - 2010
The present research tested the hypothesis that exercising self-control causes an increase in approach motivation. Study 1 found that exercising (vs. not exercising) self-control increases self-reported approach motivation. Study 2a identified a behavior--betting on low-stakes gambles--that is correlated with approach motivation but is relatively uncorrelated with self-control, and Study 2b ...
Hopkins Michael E - - 2010
Physical exercise induces widespread neurobiological adaptations and improves learning and memory. Most research in this field has focused on hippocampus-based spatial tasks and changes in brain-derived neurotrophic factor (BDNF) as a putative substrate underlying exercise-induced cognitive improvements. Chronic exercise can also be anxiolytic and causes adaptive changes in stress-reactivity. The ...
Annesi James J - - 2010
Effects of exercise on body image are not well understood. Obese women seeking weight loss were randomly assigned to groups of exercise supported by a cognitive-behavioral protocol (n=68) or typical introductory methods (n=66), and assessed on body satisfaction (Body Areas Satisfaction Scale; BASS), self-regulatory efficacy (Exercise Self-Efficacy Scale; ESE), physical ...
Ornes Lynne L - - 2010
This pilot study examined the possible mediation of walking behavior by exercise self-efficacy in an Internet-delivered intervention in a sample of college-age women. Exercise self-efficacy did not mediate walking behavior as determined using nonparametric bootstrapping methods.
Astroth Kim S - - 2010
Measuring readiness to exercise, or exercise stage of change (ESOC), is an important first step when counseling adults about exercise. However, minimal construct validity testing of ESOC measures has been reported. With a sample of 95 adults, we estimated the construct validity of four ESOC measures with commonly used response ...
Deputy Nicholas P - - 2010
To investigate eating habits and exercise behaviors as mediators in the relationship between sexual orientation and BMI in men. We hypothesized that sexual minority men (SMM) that is, men who identify as either homosexual or bisexual, have a lower BMI due to healthier eating habits and increased physical activity compared ...
Petursdottir Unnur - - 2010
BACKGROUND: Evidence indicates that regular exercise improves the well-being of individuals with osteoarthritis (OA). However, these individuals seem to exercise less frequently than the general population and seem to have limited adherence to exercising. OBJECTIVES: The purposes of this study were: (1) to increase knowledge and understanding of the experience ...
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