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Results 201 - 250 of 835
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Neale Joanne - - 2011
BACKGROUND: Although there is limited research on heroin users' participation in physical activity, sport and exercise, public health literature asserts that being physically active is good for individuals. Critics, however, caution that the benefits of sport and exercise are overstated and sport may itself reinforce or create inequalities. METHODS: In-depth ...
Tallner A - - 2011
Since multiple sclerosis (MS) often affects physically active young individuals, it is important to know if exercise can result in increased disease activity. Therefore we used a self-report questionnaire to examine the relationship of different levels of sports activity and relapses in 632 patients with MS. In order to analyse ...
Na Hye-Kyung - - 2011
Results of most epidemiological and laboratory studies suggest an inverse relationship between regular exercise and the risk of certain malignancies, such as intestinal, colon, pancreatic, breast, lung, skin, mammary, endometrial, and prostate cancer. However, physical activity can have different influence on carcinogenesis, depending on energy supply and the age of ...
Elsner V R - - 2011
Regular and moderate exercise has been considered an interesting neuroprotective strategy. Although the mechanisms by which physical exercise alters brain function are not clear, it appears that neuroprotective properties of exercise could be related to chromatin remodeling, specifically the induction of histone acetylation through modulation of histone deacetylases (HDAC) and ...
Martín-Sierra Ana - - 2011
To examine walking capacity in patients with schizophrenia and the relation with quality of life and physical activity level. Functional exercise capacity was measured with the 6 Minute Walk Test (6MWT). To asses quality of life and physical activity levels, we used respectively the SF-36 Questionnaire and the Baecke Physical ...
Staudter Mary - - 2011
Although implementing a regular exercise program may initially seem overwhelming to individuals attempting weight loss, increasing walking with a focus on steps-per-day may be a more realistic means for encouraging physical activity. This study evaluated the effectiveness of pedometer use for motivating an increase in physical activity among overweight/obese military ...
Laybourne Anne H - - 2011
One third of adults over 65 yr old fall each year. Wide-ranging consequences include fracture, reduced activity, and death. Research synthesis suggests that falls-prevention programs can be effective in reducing falls by about 20%. Strength and balance training is the most efficacious component, and the assumed method of effect is ...
Balakatounis Konstantine C - - 2011
A number of non-operative treatment protocols have been proposed in the literature for lumbar stenosis. However, the available primary research describes inadequately the employed protocol. This causes difficulties in distinguishing which interventions are more effective in reducing symptoms. We reviewed existing studies in order to promote the construction of an ...
García-Massó Xavier - - 2011
García-Massó, X, Colado, JC, González, LM, Salvá, P, Alves, J, Tella, V, and Triplett, NT. Myoelectric activation and kinetics of different plyometric push-up exercises. J Strength Cond Res 25(7): 2040-2047, 2011-The kinetic and myoelectric differences between 3 types of plyometric push-ups were investigated. Twenty-seven healthy, physically active men served as ...
Zarrouk Nidhal - - 2011
With regard to intermittent training exercise, the effects of the mode of recovery on subsequent performance are equivocal. To compare the effects of 3 types of recovery intervention on peak torque (PT) and electromyographic (EMG) activity of the knee extensor muscles after fatiguing isokinetic intermittent concentric exercise. Crossover study. Research ...
Cacicedo José M - - 2011
Exercise can prevent endothelial cell (EC) dysfunction and atherosclerosis even in the absence of improvements in plasma lipids. However, the mechanisms responsible for these effects are incompletely understood. In this study we examined in mice whether an acute bout of exercise activates enzymes that could prevent EC dysfunction, such as ...
Ding Q - - 2011
Exercise has been shown to impact brain plasticity and function by involving the action of brain-derived neurotrophic factor (BDNF); however, mechanisms involved are poorly understood. Two types of BDNF coexist in the brain, the precursor (proBDNF) and its mature product (mBDNF), which preferentially bind specific receptors and exert distinct functions. ...
Brown Heather - - 2011
Lack of physical activity is a major contributing factor to the worldwide obesity epidemic, and to the overall burden of disease. The deindustrialisation of developed economies and move to more sedentary employment has impacted on the opportunities of working individuals to participate in physical activity. This can have negative effects ...
Conti1 Valeria - - 2011
PURPOSE.: Exercise training is a non-pharmacological intervention that improves cardiovascular function and enhances endothelial homeostasis in patients with cardiovascular diseases. However, the amount of benefit achieved varies widely depending on the type and duration of exercise. Moreover, data about the long-term effects of physical activity are scarce. METHODS.: In this ...
Hojman Pernille - - 2011
Background: Regular physical activity protects against the development of breast and colon cancer, as regular physical activity reduces the risk of developing these with 25-30%. During exercise, humoral factors are released from the working muscles for endocrinal signalling to other organs. We hypothesized that these myokines mediate some of the ...
Mazzoleni S - - 2011
The aim of this study was to understand and measure the lower limbs muscular activation patterns both in healthy and spinal cord injured (SCI) subjects during robot-assisted locomotor exercise. Electromyographic (EMG) activity of four leg's muscles (rectus and biceps femoris, tibialis anterioris and gastrocnemius) was recorded and analyzed at two ...
Jackson A E - - 2011
iPAM (intelligent Pneumatic Arm Movement) is a dual robotic system that aims to assist in the recovery of upper-limb movement in people with all severities of motor impairment after stroke. This paper presents effector force data gathered during the course of a pilot clinical study. It identifies the forces and ...
Hopps E - - 2011
Obesity is considered a global epidemic by the World Health Organization in both developed and developing countries. It is associated with a higher risk of cardiovascular disease, diabetes mellitus, cancer and other clinical conditions. Visceral fat is the major responsible for metabolic complications, such as insulin-resistance, and it acts as ...
Leiter Jeff R S - - 2011
Introduction: Sarcopenia, and the importance of satellite cells (SCs) in muscle growth led us to examine the effects of exercise and age on SC activation and gene expression. Methods: Eight- and 18-month-old mice were either sedentary or underwent 3 weeks of exercise (N = 24). Body mass, distance traveled, and ...
Lubahn Amanda J - - 2011
Hip abduction strengthening exercises may be critical in the prevention and rehabilitation of both overuse and traumatic injuries where knee frontal plane alignment is considered to be important. The purpose of the current investigation was to examine the muscular activation of the gluteus maximus and gluteus medius during the double-leg ...
Padilla Jaume - - 2011
Endothelial adaptations to exercise training are not exclusively conferred within the active muscle beds. Herein, we summarize key studies that have evaluated the impact of chronic exercise on the endothelium of vasculatures perfusing nonworking skeletal muscle, brain, viscera, and skin, concluding with discussion of potential mechanisms driving these endothelial adaptations.
Sullivan-Marx Eileen M - - 2011
This study examined employment of specific recruitment and retention strategies in a study evaluating outcomes of a moderate activity exercise program for older African American women with functional impairments attending a Program for All-Inclusive Care of Elders (PACE). Recruitment and retention strategies focused on (1) partnership between researchers and participants, ...
Sasaki Jeffer E - - 2011
Objective: To compare activity counts from the ActiGraph GT3X to those from the ActiGraph GT1M during treadmill walking/running. A secondary aim was to develop tri-axial vector magnitude (VM3) cut-points to classify physical activity (PA) intensity. Methods: Fifty participants wore the GT3X and the GT1M on the non-dominant hip and exercised ...
Rasmussen Peter - - 2011
At rest, the brain takes up oxygen and carbohydrate at an ~6:1 ratio. Exercise increases systemic lactate availability reducing this to as little as 1.7:1 despite a ~20% increase in cerebral metabolic rate for oxygen (CMRo₂), thus indicating a disproportionate increase of carbohydrate metabolism. Underlining mechanisms and metabolic fate for ...
Koizumi Keisuke - - 2011
We hypothesised that the oxygen supply to the fatigued muscles is improved after the recovery with exercise caused by aerobic metabolism in the slow twitch fibres during the recovery period. Ten males performed a 30 s maximum cycling (1st Exercise), followed by a 20 min rest interval (Interval Rest) in which participants ...
Inchley Jo - - 2011
The purpose of this study was to examine adolescents' physical self-perceptions and their associations with physical activity using a longitudinal perspective. Utilizing data from the Physical Activity in Scottish Schoolchildren (PASS) study, changes in exercise self-efficacy, perceived competence, global self-esteem and physical self-worth were assessed among a sample of 641 ...
Bratland-Sanda Solfrid - - 2011
To examine associations among exercise dependence score, amount of physical activity and eating disorder (ED) symptoms in patients with longstanding ED and non-clinical controls. Adult female inpatients (n = 59) and 53 age-matched controls participated in this cross sectional study. Assessments included the eating disorders examination, eating disorders inventory, exercise dependence scale, ...
Felício Lilian R - - 2011
Hip and knee muscle weaknesses have been associated with the onset of anterior knee pain (AKP). Therefore, the understanding of how squats exercises can be performed in order to optimize the electrical activity of these muscles is relevant for physical therapy treatments. To compare the electromyographic activity of patella and ...
Abolfaz Rahimi - - 2011
The aim of this qualitative study was to explore the experiences of elderly Iranians regarding exercise. Sixteen healthy elderly people participated in semi-structured interviews conducted in 2009 in Tehran, Iran. A qualitative content analysis was used to analyze the participants' experiences and perceptions regarding physical activity. Five main categories were ...
Gonçalves Mauro - - 2011
Hand-held flexible poles which are brought into oscillation to cause alternating forces on trunk, are advocated as training devices that are supposed to solicit increased levels of stabilizing trunk muscle activity. The aim of this study was to verify this claim by comparing electromyographic (EMG) activity of trunk muscles during ...
Gerst Kerstin - - 2011
Evidence suggests that transitions among older adults towards healthy habits, such as physical activity, appear underway in developed countries such as the USA but not in developing countries such as Mexico. However, little is known about the potential benefit of physical activity in preventing disability among elders in countries at ...
Murray Patrick S - - 2011
The present paper examines the nature and function of brain-derived neurotrophic factor (BDNF) in the hippocampal formation and the consequences of changes in its expression. The paper focuses on literature describing the role of BDNF in hippocampal development and neuroplasticity. BDNF expression is highly sensitive to developmental and environmental factors, ...
Wu Jim S - - 2011
Muscle pain is a common side effect of statin medications, but the cause is poorly understood. We characterized phosphocreatine (PCr) exercise recovery kinetics in 10 patients with hypercholesterolemia before and after a 4-week regimen of statin therapy using 31-phosphorus magnetic resonance spectroscopy ((31)P-MRS). (31)P spectra were obtained before, during, and ...
Loh Siew Yim - - 2011
Background: Many cancer survivors are still not active enough to reap the benefits of physical activity. This study aimed to explore the correlation between perceived barriers and participation in exercise among multi- ethnic Malaysian women with breast cancer. Methods: A cross-sectional study using a pre-post questionnaire and a media-clip as ...
Ono Takashi - - 2011
The purpose of this study was to compare the recruitment patterns in hamstring muscles during hip extension exercise by electromyography (EMG) and muscle functional magnetic resonance imaging (mfMRI). Six male volunteers performed 5 sets of 10 repetitions of the hip extension exercise. Electromyography (EMG) activity during the exercise was recorded ...
Vuillemin Anne - - 2011
Objective: Our aim was to review the effectiveness of physical activity promotion interventions in the worksite setting in Europe in order to identify those studies that had measured obesity-related outcomes and to evaluate how external validity of the findings had been assessed. Methods: We conducted a review of studies conducted ...
Buis Lorraine R - - 2011
Veteran activity levels may decrease between Active Duty and postdeployment. We examined attitudes and changes in self-reported activities between the two in Operation Iraqi Freedom/Operation Enduring Freedom (OIF/OEF) veterans using Department of Veterans Affairs (VA) services. We conducted an online cross-sectional survey (June-August 2008) of postdeployment OIF/OEF veterans registered with ...
Naghii M R - - 2011
Objectives: Cardiovascular/Coronary Heart Disease (CVD) is a leading cause of disability and death worldwide. The most important risk factors for CVD are well-established and are strongly influenced by lifestyle changes. Clearly, physical activity has been shown to be extremely important in reducing the burden of this disease. The aim of ...
Schembre Susan M - - 2011
Non-exercise equations developed from self-reported physical activity can estimate maximal oxygen uptake (VO(2)max) as well as submaximal exercise testing. The International Physical Activity Questionnaire (IPAQ) is the most widely used and validated self-report measure of physical activity. This study aimed to develop and test a VO(2)max estimation equation derived from ...
Levine James A - - 2011
With evidence that urbanisation is associated with obesity, diabetes, hypertension and cardiovascular disease, this article compares daily physical activity between rural and urban dwellers. Specifically, it examines habitual daily activity levels, non-exercise activity thermogenesis (NEAT) and energy expenditure in agricultural and urban Jamaicans and urban North Americans. Ambulation was 60 ...
Taylor Matthew J D - - 2011
Commercial activity-promoting gaming systems provide a potentially attractive means to facilitate exercise and rehabilitation. The Nintendo Wii, Sony EyeToy, Dance Dance Revolution, and Xbox Kinect are examples of gaming systems that use the movement of the player to control gameplay. Activity-promoting gaming systems can be used as a tool to ...
Simon Jeremy I - - 2011
The following is a case report which reviews the essential aspects of Lambert-Eaton myasthenic syndrome (LEMS) in a patient with long standing back pain and gait dysfunction. The patient was referred to our electrodiagnostics laboratory for a 9-month history of low back pain and difficulty walking following a charity breast ...
Mullen Sean P - - 2011
The purpose of this study was to validate the Physical Activity Enjoyment Scale (PACES) in a sample of older adults. Participants within two different exercise groups were assessed at two time points, 6 months apart. Group and longitudinal invariance was established for a novel, 8-item version of the PACES. The ...
Oliver Lisa - - 2011
Physical inactivity and associated co-morbidities such as obesity and cardiovascular disease are estimated to have large societal costs. There is increasing interest in examining the role of the built environment in shaping patterns of physical activity. However, few studies have: (1) simultaneously examined physical activity for leisure and utility; (2) ...
Koeneman Margot A - - 2011
The health benefits of regular physical activity and exercise have been widely acknowledged. Unfortunately, a decline in physical activity is observed in older adults. Knowledge of the determinants of physical activity (unstructured activity incorporated in daily life) and exercise (structured, planned and repetitive activities) is needed to effectively promote an ...
Bucioli Sérvio A - - 2011
Exercise stress was shown to increase oxidative stress in rats. It lacks reports of increased protection afforded by dietary antioxidant supplements against ROS production during exercise stress. We evaluated the effects of vitamin E supplementation on renal non-enzymatic antioxidants in young rats submitted to exhaustive exercise stress. Wistar rats were ...
Banks Emily - - 2011
Patterns of physical activity (PA), domestic activity and sedentary behaviours are changing rapidly in Asia. Little is known about their relationship with obesity in this context. This study investigates in detail the relationship between obesity, physical activity, domestic activity and sedentary behaviours in a Thai population. 74,981 adult students aged ...
Smith Katie M - - 2011
Prenatal physical activity may improve maternal and infant health and lower future disease risk for both mother and baby; however, very few physical activity assessment methods have been validated for use during pregnancy. The purpose of this study was to evaluate the accuracy of a subjective physical activity record (PAR) ...
Schneider Margaret - - 2011
A school-based physical activity intervention designed to encourage adolescent girls to be more active was more effective for some participants than for others. We examined whether baseline enjoyment of exercise moderated response to the intervention. Adolescent girls with a low level of baseline activity who participated in a controlled trial ...
Wu Jim S - - 2011
Muscle pain is a common side effect of statin medications, but the cause is poorly understood. We characterized phosphocreatine (PCr) exercise recovery kinetics in 10 patients with hypercholesterolemia before and after a 4-week regimen of statin therapy using 31-phosphorus magnetic resonance spectroscopy ((31) P-MRS). (31) P spectra were obtained before, ...
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