Search Results
Results 351 - 400 of 919
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Rotstein Arie - - 2005
PURPOSE: This study was conducted to identify the preferred transition speed (PTS) between walking and running and the energetically optimal transition speed (ETOS), in runners and nonrunners. METHODS: A total of 19 young men were asked to walk on a treadmill at 5 km.h(-1). Speed was then increased by 0.2 ...
Morris Steve - - 2005
The terrestrial crab Discoplax hirtipes (formerly Cardisoma hirtipes) exhibits a seasonally dichotomous activity pattern governed by the seasonal rainfall on Christmas Island, with a breeding migration in the wet season. Greater activity in the wet season reflects a release of constraints on ion and water balance independent of changes in ...
Dunton Genevieve F - - 2005
OBJECTIVE: Examine the validity of using high-density electronic ecologic momentary assessment (EMA) to assess physical activity. EMA was further used to explore within- and between-subject variability in adolescent physical activity (PA) patterns. METHODS: Adolescents (n=526, 51% male) participated in EMA waves occurring approximately every 6 months between the 9th and ...
Zak Marek - - 2005
Background. Our study was undertaken to assess the impact of a structured rehabilitation regimen on walking speed in frail elderly patients recovering from hip replacement surgery, as well as to determine whether regular use of a pedal exerciser combined with multi-sensory training can increase this parameter. Material and methods. The ...
Black Christopher D CD Department of Kinesiology, The University of Georgia, Athens, GA, USA. - - 2005
In a previous study we demonstrated that while people with CFS had lower daily activity levels than control subjects, they were able to increase daily activity via a daily walking program. We reanalyzed our data to determine the time course of activity changes during the walking program. Daily activity assessed ...
Hiraoka Koichi - - 2006
The present study investigated the effects of external cues on motor control of the ankle joint during gait initiation in patients with Parkinson's disease (PD) and in age-matched healthy subjects. The soleus H-reflexes were recorded during self-generated and cue-triggered gait initiation. The tibialis anterior muscle burst during cue-triggered gait initiation ...
Thrasher T A - - 2006
Case series, and repeated assessments of the same individuals. To demonstrate the feasibility and efficacy of a multiweek intervention on walking function in people with chronic, incomplete spinal cord injuries. Rehabilitation hospital for spinal cord injury (SCI) in Toronto, Canada. A convenience sample of five subjects with chronic, incomplete SCI ...
Win T - - 2006
The relationship between the shuttle walk test and peak oxygen consumption in patients with lung cancer has not previously been reported. A study was undertaken to examine this relationship in patients referred for lung cancer surgery to test the hypothesis that the shuttle walk test would be useful in this ...
Graham Rachel C - - 2005
OBJECTIVE: To investigate the reliability and validity of the Physiological Cost Index (PCI) scores, as a measure of energy expenditure, when healthy subjects walk on 2 different tracks (20-m and 12-m figure eight tracks). DESIGN: Intra- and interrater reliability and construct validity. SETTING: Physiotherapy division of a university in London, ...
Nicklas Barbara J - - 2005
We determined whether physical function and its response to exercise training are associated with polymorphisms in cytokine genes (interleukin-6 [IL-6] -174 G/C; tumor necrosis factor alpha [TNFalpha] -308 G/A and -238 G/A; and TNFalpha receptors [TNFR]1 +36 A/G, TNFR2 +676 T/G, and TNFR2 +1663 A/G), in 214 older (> or ...
McDevitt Judith - - 2005
The purposes of this quasi-experimental pilot study were to determine adherence to a 12-week group-based moderate-intensity walking program for sedentary adult outpatients with serious and persistent mental illness and to examine change from baseline to after the walking program in health status (mental and physical health, mood, and psychosocial functioning) ...
Warabi Tateo - - 2005
In order to clarify differences of treadmill from overground locomotion, experiments were carried out on 10 volunteers (five males and five females). Sole-floor reaction force was recorded from five anatomically discrete points with strain gauge transducers of 14 mm diameter attached firmly to the sole of bare-foot. At first the ...
Siegmund Gunter P - - 2006
Prior knowledge of potentially slippery conditions has been shown to alter normal human gait in slip and fall experiments. We sought to quantify how the empirical relationship between slip probability and available floor friction was affected by subject awareness and prior slip experience. Sixty-eight subjects (40 females, 28 males) walked ...
Macko Richard F - - 2005
BACKGROUND AND PURPOSE: Physical inactivity propagates disability after stroke through physical deconditioning and learned nonuse. We investigated whether treadmill aerobic training (T-AEX) is more effective than conventional rehabilitation to improve ambulatory function and cardiovascular fitness in patients with chronic stroke. METHODS: Sixty-one adults with chronic hemiparetic gait after ischemic stroke ...
Kautz Steven A - - 2005
OBJECTIVES: Determine whether a rehabilitation program targeting functional motor recovery of persons with poststroke hemiparesis improved motor coordination. METHODS: A subgroup of 20 persons with poststroke hemiparesis (n = 11 in intervention and n =9 in control group) was investigated from within a larger randomized controlled single-blind clinical trial of ...
Kim Hyun Soo - - 2005
OBJECTIVES: This prospective study was conducted to assess the effect of walking exercise on bowel cleansing before colonoscopy and to define a patient subgroup that would benefit from walking exercise. METHODS: A total of 383 outpatients were randomized into two groups (G1 [n = 196]; walking exercise, G2 [n = ...
Jordan Alexander N - - 2005
PURPOSE: The aim of this study was to quantify pedometer-determined steps per day associated with 50, 100, and 150% of the current public health recommendation for weekly physical activity in sedentary postmenopausal women. METHODS: A sample of 111 women from the DREW (Dose Response to Exercise in Women) study provided ...
Frenkel-Toledo Silvi - - 2005
Recent reports suggest that external cueing improves stride length and gait speed in Parkinson's disease (PD). The purpose of the present study was to examine the influence of treadmill walking on gait variability. The 36 PD patients (Hoehn and Yahr stage 2--2.5) were compared to 30 controls. Subjects walked three ...
Fusi S - - 2005
There is increasing evidence that motor imagery involves at least in part central processes used in motor control. In order to deepen our understanding on the neural mechanisms underlying vegetative responses to real and imagined exercise, we determined cardioventilatory variables during actual or imagined treadmill walking on flat terrain at ...
Brown Tracy H - - 2005
OBJECTIVES: To compare body weight support treadmill training (BWSTT) to conventional overground gait training (COGT). DESIGN: Randomized controlled trial. SETTING: Residential rehabilitation center. PARTICIPANTS: Twenty subjects with chronic traumatic brain injury (TBI). INTERVENTION: The BWSTT or COGT for 15 minutes plus 30 minutes of exercise 2 days per week, for ...
Scognamiglio Roldano R Division of Metabolic Diseases, University of Padua, Padua, Italy. - - 2005
With advancing age the risk of developing serious nutritional deficiencies increases, and disturbances to the actions of insulin and insulin-like growth factor, coupled with reduced protein/amino acid (AA) intake, impair protein synthesis in muscles. To assess the effects of administering oral AAs on walking capacity and perceived walking impairment, isometric ...
Delval Arnaud - - 2006
OBJECTIVE: To evaluate specific patterns of locomotion in Huntington's disease (HD) and notably the respective roles of hypokinesia (i. e. a decrease in the amplitude of movement) and bradykinesia (i. e. difficulty in executing a movement, slowness) in gait disturbance. METHODS: Kinematic, spatial (stride length, speed), temporal (cadence, speed, and ...
Michael Kathleen M - - 2005
OBJECTIVES: To determine ambulatory activity in a sample of community-dwelling people with chronic hemiparetic stroke and to examine whether deficits in balance and gait and cardiovascular and metabolic fitness are key determinants of ambulatory activity levels. DESIGN: Descriptive correlational. SETTING: Home and community. PARTICIPANTS: Twenty-eight men and 22 women (N=50) ...
Chen George - - 2005
Treadmill walking was used to assess the consistent gait differences between six individuals with post-stroke hemiparesis and six non-disabled, healthy controls at matched speeds. The hemiparetic subjects walked on the treadmill at their comfortable speeds, while each control walked at the same speed as the hemiparetic subject with whom he ...
Peurala Sinikka H - - 2005
OBJECTIVE: To compare body weight-supported exercise on a gait trainer with walking exercise overground. DESIGN: Randomized controlled trial. SETTING: Rehabilitation hospital. PARTICIPANTS: Forty-five ambulatory patients with chronic stroke. INTERVENTIONS: Patients were randomized to 3 groups: (1) gait trainer exercise with functional electric stimulation (GTstim), (2) gait trainer exercise without stimulation ...
Pierrynowski Michael Raymond - - 2005
Stride intervals measured during steady-state walking are irregular. These stride interval fluctuations are not random but exhibit long-range power-law correlation (alpha) such that a given stride interval is 'influenced' by earlier variations in the stride intervals. To estimate alpha, one requires a minute long sequence of right or left side ...
Requião L F - - 2005
The plantarflexor, hip extensor and hip flexor muscle groups contribute by their concentric action to generate most of the energy during level gait in healthy subjects. The goal of the present study was to determine, during the main energy generation phases, the relative demand of these three groups in 14 ...
Witham Miles D - - 2006
Exercise capacity and daily activity are key outcomes for older, frail heart failure patients. Little is known about the determinants of these outcomes in this patient group. To explore predictors of exercise capacity and daily activity in older, frail heart failure patients. Analysis of prospectively collected data from a cohort ...
Bates Janet H - - 2005
BACKGROUND: Although walking is a popular leisure-time activity, a substantial amount of total daily walking occurs in non-leisure contexts (i.e., occupation, transportation, and household work). Because non-leisure walking is not assessed by traditional leisure-time activity surveys, total walking among U.S. adults may be underestimated. This study describes walking estimates obtained ...
Schwameder Hermann - - 2005
Lower extremity joint loading during walking is strongly affected by the steepness of the slope and might cause pain and injuries in lower extremity joint structures. One feasible measure to reduce joint loading is the reduction of walking speed. Positive effects have been shown for level walking, but not for ...
Brooks Anthony G - - 2005
PURPOSE: a) Compare the predictive potential of speed and CSA(hip) (Computer Science Applications accelerometer positioned on the hip) for level terrain walking METs (1 MET = VO2 of 3.5 mL.kg(-1).min(-1)) and energy expenditure (kcal.min(-1)); b) cross-validate previously published CSA(hip)- and speed-based MET and energy expenditure prediction equations; c) measure self-paced ...
Casas Alejandro - - 2005
STUDY OBJECTIVES: In patients with moderate-to-severe COPD, an encouraged 6-min walking test (6MWT) is a high-intensity submaximal exercise protocol that shows an oxygen uptake (Vo(2)) plateau after the third minute of the test. This last feature prompted the hypothesis that self-paced walking speed is set to achieve "maximal" sustainable Vo(2), ...
Rance M - - 2005
Walking is a useful exercise mode for most adults due to its general ease, acceptability, and safety. Therefore, many field tests based on performance in walking have been developed to predict V.O (2 max). Even if these tests are much easier to perform than laboratory tests, field tests have to ...
Willis Wayne T - - 2005
Human adults walk at a characteristic speed, but the mechanisms responsible for this ubiquitous and reproducible behavior remain unknown. In this study, preferred walking speed (PWS) was 4.7 +/- 0.1 km h -1 in 12 overnight-fasted adults, mean age 30.0 +/- 2.6 years. Indirect calorimetry was used to measure fuel ...
Datta Dipak - - 2005
OBJECTIVE: To compare the gait of amputees wearing conventionally damped pneumatic swing-phase control knees and microchip-controlled Intelligent Prostheses. DESIGN: Crossover trial. SETTING: An amputee rehabilitation centre in a teaching hospital. PARTICIPANTS: Ten established unilateral transfemoral prosthetic users were asked to participate in the trial; all agreed. INTERVENTIONS: The amputees were ...
Li A M - - 2005
The aim of this study was to assess the reliability and validity of the 6-min walk test (6MWT) in healthy children. Chinese secondary school students were randomly recruited. They attended the current authors' unit on two occasions, separated by 2 weeks. Physical examination and standardised maximum incremental exercise testing on ...
Tudor-Locke Catrine - - 2005
BACKGROUND: Walking for exercise is a purposeful or structured activity that can be captured relatively easily in surveys focused on leisure time activity. In contrast, walking for transport is an incidental activity that is likely to be missed using these same assessment approaches. Therefore, the purpose of this analysis was ...
Zamparo P - - 2005
The aim of this study was: (1) to assess the energy cost of swimming (C(s), kJ km(-1)) in a group of male (n = 5) and female (n = 5) elite swimmers specialised in long-distance competitions; (2) to evaluate the possible effect of a 2-km trial on the absolute value ...
Scherder E J A - - 2005
The primary goal of the present study was to examine whether in the elderly with mild cognitive impairment (MCI), the effect of physical activity measured directly following treatment, was reflected in an improvement in cognitive functioning in general or in executive functions (EF) in particular. Secondly, this study aimed to ...
Hicks A L - - 2005
Longitudinal, prospective within-subject design. (1) To determine the effects of long-term body-weight-supported treadmill training (BWSTT) on functional walking ability and perceived quality of life in persons with chronic incomplete spinal cord injury (SCI), and (2) to investigate whether training adaptations are maintained following cessation of the BWSTT programme. Hamilton, Ontario, ...
Wolinsky Fredric D - - 2005
OBJECTIVE: The objectives of this work were to determine the prevalence of self-reported subclinical status for functional limitation and disability at baseline and assess their independent effects on the onset of functional limitation and disability 1-2 years later. METHODS: Nine hundred ninety-eight African American men and women 49-65 years old ...
Browning Raymond C - - 2005
OBJECTIVE: We tested the hypotheses that walking is more expensive for obese women, and they prefer slower walking speeds that minimize the gross energy cost per distance despite a greater relative aerobic effort [percent of maximal oxygen uptake (Vo(2max))/kg]. RESEARCH METHODS AND PROCEDURES: Twenty adult women, 10 obese (BMI = ...
Ung Roth-Visal - - 2005
When untrained subjects walk backward on a treadmill, an unexpectedly large amplitude soleus H-reflex occurs in the midswing phase of backward walking. We hypothesized that activity in the corticospinal tract (CST) during midswing depolarizes the soleus alpha-motoneurons subliminally and thus brings them closer to threshold. To test this hypothesis, transcranial ...
Fitzsimons Claire F - - 2005
This study examined the effect of age on descriptive walking-speed instructions commonly used in health promotion. Participants were 9 young (20-23 years) and 9 older (75-83 years) women. Oxygen uptake and walking speed were measured in response to descriptive walking instructions ("slow," "comfortable," "brisk," and "fast"). Although the older women ...
Roddy E - - 2005
OBJECTIVE: To compare the efficacy of aerobic walking and home based quadriceps strengthening exercises in patients with knee osteoarthritis. METHODS: The Medline, Pubmed, EMBASE, CINAHL, and PEDro databases and the Cochrane controlled trials register were searched for randomised controlled trials (RCTs) of subjects with knee osteoarthritis comparing aerobic walking or ...
Zlot Amy I - - 2005
PURPOSE: Compare walking and bicycling for transportation and recreation with the percentage of the community devoted to parklands. METHODS: Behavioral Risk Factor Surveillance System (N = 206,992), Nationwide Personal Transportation Survey (N = 409,025), and Trust for Public Land (N = 55) data were used to estimate recreational walking and ...
Anderson Erik J - - 2005
Although various hydrodynamic models have been used in past analyses of squid jet propulsion, no previous investigations have definitively determined the fluid structure of the jets of steadily swimming squid. In addition, few accurate measurements of jet velocity and other jet parameters in squid have been reported. We used digital ...
Maltais Désirée B - - 2005
PURPOSE: To determine, in children and adolescents with cerebral palsy (CP), the relationship between physical activity level (PAL) and i) oxygen cost of walking, and ii) peak VO2. METHODS: In 11 subjects (10.6-16.3 yr) with mild CP, PAL, the ratio of total energy expenditure to resting energy expenditure, was determined ...
Fulk George D - - 2005
BACKGROUND AND PURPOSE: Impaired walking ability, balance, and fatigue are common problems for people with multiple sclerosis (MS). The purpose of this case report is to describe the use of plan of care that included locomotor training using both a body weight support (BWS) with a treadmill (TM) and overground ...
Asbury Charles L - - 2005
Kinesin, an essential motor protein that moves intracellular cargo along microtubules, walks like a person. When we walk, our feet exchange roles with each step, one moving and one remaining stationary. The moving foot travels twice as far as our torso during a single step, and our body alternates between ...
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