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Results 551 - 600 of 1437
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Björklund Martin M Center of Musculoskeletal Research, University of Gävle, Umeå, Sweden. - - 2006
Stretching is common among athletes as a potential method for injury prevention. Stretching-induced changes in the muscle spindle properties are a suggested mechanism, which may imply reduced proprioception after stretching; however, little is known of this association. To evaluate whether acute stretching of the shoulder muscles affects position sense. A ...
Nonaka Hisako - - 2006
PURPOSE: This study was designed to compare mechanomyography (MMG) and the force relationship during isometric ramp contractions of biceps brachii muscles in females and males to identify sex differences in the MMG responses. METHODS: Subjects (10 females and 9 males; age range, 20-26 yr) were asked to exert an isometric ...
Flansbjer Ulla-Britt - - 2006
OBJECTIVE: To assess the relation between knee muscle strength, gait performance, and perceived participation in subjects with chronic mild to moderate poststroke hemiparesis. DESIGN: Descriptive analysis of convenience sample. SETTING: University hospital. PARTICIPANTS: Fifty men and women (mean age, 58+/-6.4y) 6 to 46 months poststroke. INTERVENTIONS: Not applicable. MAIN OUTCOME ...
Russo A - - 2006
Several studies have reported predictors for loss of mobility and impairments of physical performance among frail elderly people. To evaluate the relationship between lifetime occupation and physical function in persons aged 80 years or older. Data are from baseline evaluation of 364 subjects enrolled in the ilSIRENTE study (a prospective ...
Jeune Bernard - - 2006
BACKGROUND: Handgrip strength is an important predictor of disability and mortality among old people. The aim was to compare the grip strength among very old people in three regions of Europe. METHODS: In this substudy of the European Challenge for Healthy Aging project, only the long-lived probands were included. The ...
Salo Petri K - - 2006
STUDY DESIGN: Cross-sectional descriptive study. OBJECTIVES: To determine the maximal isometric strength of the flexor, extensor, and rotator muscles of the cervical spine in healthy females of working age to document reference values for diagnostic and rehabilitation purposes. BACKGROUND: Reference values for the isometric strength of the cervical muscles have ...
Watsford Mark L - - 2007
The reduced physiological capacity evident with ageing may affect the ability to perform many tasks, potentially affecting quality of life. Previous research has clearly demonstrated the reduced capacity of the respiratory system with ageing and described the effect that habitual physical activity has upon this decline. This research aimed to ...
Simoneau Emilie - - 2007
This study aimed at examining the effects of joint angle and age on the maximal voluntary contraction (MVC) torque, for the agonist and antagonist muscle groups around the ankle, i.e., the dorsi- and plantar-flexors. To this aim, neural and muscular factors were investigated in two groups of healthy men: 11 ...
Holsgaard Larsen A - - 2007
INTRODUCTION: Reliable and sensitive muscle strength/power assessments are essential when evaluating age-related and/or training-induced changes in maximal strength and power. AIM: To investigate the reproducibility and inter-relationship of single-joint isokinetic/isometric leg muscle strength vs multi-joint mechanical muscle function during counter-movement jump (CMJ) in moderately trained aging individuals (age 72.3+/-6.6). RESULTS: ...
Haisma Janneke A - - 2006
OBJECTIVE: To assess changes in physical capacity and its determinants in persons with a spinal cord injury. DESIGN: Prospective cohort study. Measurements at the start of active rehabilitation (t1), 3 months later (t2), at discharge (t3), and 1 year after discharge (t4). SETTING: Eight rehabilitation centers in The Netherlands. PARTICIPANTS: ...
King Emma - - 2006
OBJECTIVES AND DESIGN: The use of the radial pulse as a diagnostic tool is an important part of the Chinese medicine (CM) clinical evaluation. This study reports the findings of an investigation into inter-arm pulse strength differences in subjects and the relationship to traditional pulse claims relating to gender. METHOD: ...
Scott Wayne B - - 2006
BACKGROUND AND PURPOSE: Following spinal cord injury (SCI), paralyzed muscles undergo physiological changes that alter their force responses to electrical stimulation. The purpose of this study was to investigate the effects of SCI on the contractile properties and force-frequency relationship (FFR) of the paralyzed human quadriceps femoris muscle of adolescents ...
Ferrario Virgilio F - - 2006
OBJECTIVE: The aim of this study is to assess a possible relationship between unilateral hip dysplasia and sternocleidomastoid muscle function during a fatiguing task. METHODS: In this patient-control, cross-sectional study, 11 female patients (aged 37-63 years) with unilateral coxoarthrosis subsequent to hip dysplasia and 9 female control subjects matched for ...
Willson John D - - 2006
INTRODUCTION/PURPOSE: Muscles of the trunk, hip, and knee influence the orientation of the lower extremity during weight bearing activities. The purpose of this study was threefold: first, to compare the orientation of the lower extremity during a single leg (SL) squat among male and female athletes; second, to compare the ...
Macfarlane D J - - 2006
It is important to establish valid field measures of lower body strength in the elderly, and to provide representative normative values that are culturally specific in order to help health professionals in the risk assessment of this group. A sample of 1,038 elderly Hong Kong Chinese undertook a 30-sec chair ...
Sakkas Giorgos K - - 2006
BACKGROUND: Diabetes mellitus (DM) is a potential contributor to the muscle abnormalities and poor physical functioning of the dialysis population. METHODS: Thirty-three dialysis patients without DM (non-DM group) were compared with 25 dialysis patients with DM (DM group). Measures were made of cross-sectional area and composition of the leg muscles ...
Deighan M - - 2006
The aims of this study were to examine age and sex differences in elbow extensor and flexor anatomical muscle cross-sectional area (mCSA) measured by magnetic resonance imaging (MRI) and the location of maximal mCSA as a percentage of the distance from the distal to the proximal end of the humerus. ...
Pfisterer Mathias H-D - - 2006
PURPOSE: We examined the relationship of DO and aging, and bladder function in female volunteers. MATERIALS AND METHODS: We recruited 85 cognitively competent, fully functional female volunteers who were 22 to 90 years old (median age 54) with and without symptoms suggestive of DO. Comprehensive assessment included a bladder diary, ...
Markstrom Carol A - - 2007
The psychosocial inventory of ego strengths (PIES) was devised as a measure of Erikson's eight ego strengths. The present investigation extended previous research through examination of the validity and reliability of the PIES among 502 high school students. The study also included an appraisal of Erikson's ego strengths as indices ...
Kuruganti Usha - - 2006
The bilateral limb deficit (BLD) describes the difference in maximal or near maximal force generating capacity of muscles when they are contracted alone or in combination with the contralateral muscles. A deficit occurs when the summed unilateral force is greater than the bilateral force. This study examined the presence of ...
Bromley Elizabeth - - 2006
The aim of this study was to investigate whether personality strengths during adolescence are associated with decreased risk of developing psychiatric disorders, educational or occupational problems, violent or criminal behaviors, and interpersonal difficulties during early adulthood. A representative community sample of 688 mothers from upstate New York and their offspring ...
Telles Shirley - - 2006
The performance in a mirror star tracing task was assessed in two groups of volunteers (yoga and control) with 26 people in each group, and age range between 18 and 45 years. The star to be traced was six pointed and the outline was made up of 60 circles (4 ...
Momiyama Hideki - - 2006
We studied the movement of center of gravity (CG) in young and aged subjects during maximum grip of right or left hand. Body-sway was recorded with stabilometry in rest-stand position and in maximum grip. The data from right-or left-handed young subjects were analyzed. Maximum grip power was not different between ...
Hess Jennifer A - - 2006
BACKGROUND AND AIMS: The most common cause of accidental injury and death in people over age 65 results from impacts associated with falling. Balance impaired older adults have poorer balance control than healthy young adults or healthy older adults. Lack of sufficient lower extremity strength and inability to rapidly produce ...
Sosnoff Jacob J JJ Department of Kinesiology and Community Health, 207 Freer Hall (MC 052), The University of Illinois at Urbana-Champaign, 906 S. Goodwin Avenue, Urbana, IL, 61801, USA. - - 2006
The purpose of this investigation was to examine the relationship between strength and the magnitude and time sequential structure of force variability. Young and old adults produced isometric force via index finger abduction to a visually presented target corresponding to a constant force level of 5 or 25% maximal voluntary ...
Wolf Steven L - - 2006
OBJECTIVE: To gather initial data on the Wolf Motor Function Test (WMFT) from able-bodied participants. DESIGN: Cross-sectional cohort study. SETTING: Clinical research laboratory. PARTICIPANTS: A convenience sample of 51 healthy able-bodied, right-hand dominant, adult participants, between the ages of 40 and 79 years. INTERVENTION: One-time administration of the WMFT. MAIN ...
Katić Ratko - - 2006
The aim of the study was to identify motor structures in elite female volleyball players aged 14-17, and to assess the effect of these motor structures on their technical and situation efficiency. For this purpose, a battery of 12 motor tests as predictor variables, and a set of six technical ...
Frederiksen Henrik - - 2006
PURPOSE: The purpose is to study the age trajectory of hand-grip strength after the age of 45 years. METHODS: In this study, we use data from three large nationwide population-based surveys of Danes aged 45 to 102 years with a total of 8342 participants with grip-strength measurements and up to ...
van den Beld Willeke A - - 2006
To spare more children from painful muscle biopsy, a new non-invasive diagnostic motor performance test is undergoing development. Fifteen functional items were used to measure muscle strength and muscle endurance in 68 patients (47 males, 21 females; mean age 7y 8mo, SD 2y 2mo; range 4 to 11y), who had ...
Richardson Michael S - - 2006
BACKGROUND AND PURPOSE: Both aging and anterior cruciate ligament (ACL) reconstruction are associated with strength deficits, which can in turn influence performance of activities of daily living. Thus it is informative to understand mechanisms underlying strength deficits. Age-related declines in strength follow reductions in muscle fiber numbers and size, whereas ...
Karamanidis Kiros - - 2006
The purpose of this study was to examine the effects of aging and endurance running on the mechanical and morphological properties of different muscle-tendon units (MTUs) in vivo. The investigation was conducted on 30 elderly and 19 young adult males. For the analysis of possible MTU adaptation in response to ...
Hoffman Jay R - - 2006
Comparison of protein intakes on strength, body composition and hormonal changes were examined in 23 experienced collegiate strength/power athletes participating in a 12-week resistance training program. Subjects were stratified into three groups depending upon their daily consumption of protein; below recommended levels (BL; 1.0 - 1.4 g.kg-1.day-1; n = 8), ...
Hamstra-Wright Karrie L - - 2006
OBJECTIVES: To assess differences in neuromuscular dynamic restraint between high-skilled and low-skilled prepubescent girls and boys. To determine the contribution of sport experience and physical characteristics to motor skill. SUBJECTS: Nineteen girls and 17 boys (8.89-9.40 y) participated. INTERVENTION: Isometric hamstring and quadriceps muscle strength was assessed. Subjects performed 3 ...
Kalisch Tobias - - 2006
The decline of motor performance of the human hand-arm system with age is well-documented. While dominant hand performance is superior to that of the non-dominant hand in young individuals, little is known of possible age-related changes in hand dominance. We investigated age-related alterations of hand dominance in 20 to 90 ...
Singh Amika S - - 2006
The age-related deterioration of physiological capacities such as muscle strength and balance is associated with increased dependence. Understanding the contribution of physical fitness components to functional performance facilitates the development of adequate exercise interventions aiming at preservation of function and independence of older people. The aim of the study was ...
Tarpenning Kyle M - - 2006
Quadriceps strength and mass peak in the third decade of life, plateau, and then decline from the fifth decade on. To examine the influence of chronic endurance training and age on lean mass and leg strength, women runners (n = 62, age 43-69 years) and sedentary participants (n = 33, ...
Alon Gad G University of Maryland, School of Medicine, Department of Physical Therapy & Rehabilitation Science Baltimore, MD 21201, - - 2005
1) If healthy subjects can be conditioned to tolerate clinically useful electrically induced muscle contraction; and 2) If there is a gender difference in response to such conditioning. Healthy volunteers (10 males, 11 females, mean age of 27.6 ± 5.8 yrs) were tested during each of 6 testing sessions. Maximal ...
Piva Sara R - - 2005
STUDY DESIGN: Case control design. OBJECTIVES: To investigate whether differences exist in lower extremity muscle strength and soft tissue length between patients with patellofemoral pain syndrome (PFPS) and age- and gender-matched control subjects. BACKGROUND: Based on our clinical experience and emerging data, impairments such as muscular weakness surrounding the hip ...
Rasch Anton - - 2005
OBJECTIVE: To evaluate test methods for hip and knee muscle weakness and gait disturbance. DESIGN: Test-retest. SETTING: Orthopedic university clinic. PARTICIPANTS: Ten young (age, 36+/-6 y) and 13 elderly (age, 69+/-8 y) healthy volunteers and 11 patients (age, 69+/-8 y) with unilateral hip osteoarthritis (OA) were tested for muscular strength. ...
Dahmen Riadh - - 2005
Hand, eye and foot preferences in Tunisia were examined in relation to age, gender and geographic location. We analyzed 1291 questionnaires from 653 men and 638 women, aged 8 to 74 years. Despite the cultural pressure against the use of the left hand for food-related activities, the overall frequency of ...
Katić Ratko - - 2005
The study objective was to analyze the integration of psychomotor coordination into other dimensions evaluated. Four morphologic variables (stature, body mass, forearm circumference and triceps skinfold) and 7 motor variables (hand tapping, standing jump, sit-ups, forward bow, bent arm hang, 3-min run and polygon backward) were assessed in a sample ...
Barber-Westin Sue D - - 2006
BACKGROUND: Many authors have speculated that altered neuromuscular control and strength of the lower extremity are responsible for the gender disparity in knee ligament injury rates. HYPOTHESIS: Significant increases in normalized quadriceps and hamstrings strength and limb symmetry on single-legged hop test occur with age. No gender differences in strength ...
Grabiner Mark D - - 2005
BACKGROUND: The purpose of this study was to determine the extent to which measures of lower extremity strength and power contribute to the ability of older men and women to restore postural equilibrium using a single-step recovery following a large postural disturbance. METHODS: The postural disturbance, which has been used ...
Schellenbaum Gina D - - 2005
OBJECTIVES: To determine whether angiotensin-converting enzyme (ACE) inhibitor use may be associated with weight maintenance and sustained muscle strength (measured by grip strength) in older adults. DESIGN: Data from the Cardiovascular Health Study (CHS), a community-based prospective cohort study of 5,888 older adults, were used. SETTING: Subjects were recruited from ...
O'Day Carol - - 2005
Changes in tongue and hand strength measurements of men with Parkinson's Disease and aged-matched controls across multiple days were examined. The Iowa Oral Performance Instrument measured tongue and hand strength during four consecutive days and at day 11. Peak tongue strength measurements occurred on day 3 with a small decrease ...
Sidaway Ben - - 2005
BACKGROUND AND PURPOSE: Mental practice has been shown to be effective in increasing the force production of the abductor digiti minimi muscle in the hand. The aim of this study was to determine whether mental practice could produce strength gains in the larger ankle dorsiflexor muscles, which are important during ...
Jan Mei-Hwa - - 2005
BACKGROUND AND PURPOSE: The ability to perform 20 or more one-leg heel-rises is considered a "normal" grade for muscle strength (force-generating capacity of muscle) of the ankle plantar flexors, regardless of age and sex. Because muscle strength is closely related to age and sex, the "normal" test criterion was re-evaluated ...
Pradhan R L - - 2005
The purpose of this study was to determine the correlation between quantitative (cross sectional areas) evaluation of the posterior cuff muscles and mechanical strength in asymptomatic shoulders with special reference to aging. The cross-sectional area of the combined infraspinatus and teres minor muscles were measured, in the sagittal oblique magnetic ...
Leyendecker M - - 2005
1. Tibia and humerus breaking strength of Lohmann Silver hybrids kept in conventional cages, furnished cages and an aviary with outdoor run were examined in two production cycles. Each trial lasted a full laying period; feeding, management and healthcare were identical for all hens. In both trials bone strength was ...
Donat Hülya - - 2005
BACKGROUND AND AIMS: Hand function weakens with age in both men and women, especially after the age of 65. As the number of older people increases, more older adults may have sensorimotor impairment, which affects upper extremity (UE) performance and thus independence in the activities of daily life. The purpose ...
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