Search Results
Results 401 - 450 of 1397
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Ness Kirsten K - - 2007
BACKGROUND: Chronicity of muscle weakness from cancer and its treatment may be problematic, particularly in those treated for cancer during childhood. We compared body composition, muscle strength, and mobility between 75 adult survivors of childhood acute lymphoblastic leukemia (ALL) and expected values based on population normative data. METHODS: Subjects were ...
Talelli P P Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, University College London, Queen SQ, Box 146, London WC1N 3BG, UK. - - 2008
Normal aging is associated with less lateralised task-related activation of the primary motor cortices. It has been hypothesized, but not tested, that this phenomenon is mediated transcallosaly. We have used Transcranial Magnetic Stimulation to look for age-related changes in interhemispheric inhibition (IHI). Thirty healthy individuals (aged 19-78 years) were studied ...
Takeuchi Kazunari - - 2008
Although difficulties with neck mobility often interfere with patients' activities of daily living (ADL) after cervical laminoplasty, there was no detailed study on the relation between the limitations of ADL accompanying postoperative reduced neck mobility and the cervical posterior approach. The aim of this study was to compare retrospectively the ...
Oliveira Marcio Alves MA Department of Kinesiology, University of Maryland, 2318, College Park, MD 20742, USA. - - 2008
It has been previously reported that patients with Parkinson's disease (PD) struggle with fine adjustments of finger forces while manipulating an object. However, impairments in everyday activities can not only be attributed to difficulties with the linear forces applied on an object, but also to the application of rotational forces ...
Kernozek Thomas W - - 2008
BACKGROUND: Neuromuscular fatigue has been suggested as an extrinsic factor in the mechanism of noncontact anterior cruciate ligament injury in both genders. PURPOSE: To determine and describe the lower extremity kinematic and kinetic differences caused by neuromuscular fatigue during drop landings and compare changes between age- and skill-matched male and ...
Vianna Lauro C - - 2007
It is well-established that at old age there is a significant decline in muscle strength. Reference values for muscle strength might be useful for assessment of muscle impairment and of physiological adaptations. However, it is still unclear whether gender affects the rate of decline. Therefore, the aim of this study ...
Cagnie Barbara - - 2007
OBJECTIVES: To determine the intra- and interrater reliability of the Biodex isokinetic dynamometer to measure the maximal isometric strength of the cervical flexors and extensors, to develop an age- and sex-based normative database in a healthy population, and to evaluate the differences in neck strength between women with chronic neck ...
Doymaz Fadime - - 2007
This study was conducted to examine the relationship between thigh skinfold measurement, hand grip strength, and trunk muscle endurance and compare this relationship in men and women. The current study included 200 healthy subjects (111 women and 89 men), with a mean age of 31.58+/-13.78 y. Trunk muscle endurance was ...
Stout J R - - 2007
OBJECTIVES: This study examined the effects of 14 days of creatine supplementation on the physical working capacity at fatigue threshold (PWCFT), maximal isometric grip strength (GRIP), sit-to-stand (STS), and body weight (BW) in elderly men and women. DESIGN: Using a double blind cross-over design, fifteen men (n = 7) and ...
Wren Tishya A - - 2007
OBJECTIVES: To evaluate existing approaches for normalizing lower-extremity strength data and to develop normalization equations using allometric scaling in children without disabilities. DESIGN: Cross-sectional study evaluating traditional mass normalization and allometry as methods of adjusting lower-extremity muscle torques for the influence of body mass. SETTING: Motion analysis laboratory. PARTICIPANTS: Thirty-nine ...
Liu Fei - - 2007
STUDY DESIGN: In vivo human and biomechanical study. OBJECTIVE: To quantify the in vivo kinematic and kinetic variations in the normal, fused, and disc replacement cervical spines. SUMMARY OF BACKGROUND DATA: Clinical and cadaveric studies have reported the motions and forces after an anterior cervical decompression and fusion (ACDF) or ...
Holcomb William - - 2007
CONTEXT: Electrical stimulation using simultaneous application of two current types for multiple effects is a current treatment option, but the effect of this treatment is not currently known. OBJECTIVES: To compare isometric knee extension torque when using neuromuscular electrical stimulation (NMES) in combination with High Voltage Pulsed Current (HVPC) versus ...
Toji Hideki - - 2007
The effect of aging on muscular power development was investigated by determining the force-velocity relationship. The muscle cross-sectional area (CSA) was estimated by the thickness of the elbow flexors. The subjects were 19 elderly males aged 69.1+/-3.7 years old (G-70 group), 15 middle-aged males aged 50.9+/-3.5 years old (G-50), and ...
Tal-Akabi Amir - - 2007
OBJECTIVE: To evaluate the short-term effects of high-intensity, task-specific vs regular rehabilitation programme on neuromuscular activity and functional changes in elderly inpatients. DESIGN: Single-blind, randomized controlled trial. PATIENTS: Sixty-two patients, aged 74.1 (standard deviation (SD) 6.9) years, 12.8 (SD 3.6) days after operation of one lower limb. METHODS: Allocation to ...
Kelly Stephen B - - 2007
Research has previously been divided on whether performing resistance training with a single set per training session is as effective for increasing strength as training with multiple sets. The purpose of this study was to determine the effect of single sets versus multiple sets on strength. Forty subjects were randomly ...
Ellenbecker Todd S - - 2007
Tennis requires repetitive multidirectional movement patterns that can lead to lower extremity injury. Knowledge of population and age-specific strength parameters can be used during performance enhancement training and rehabilitation of tennis players. The purpose of this study was to generate population and age-specific descriptive profiles of concentric isokinetic knee extension ...
Cereda Emanuele - - 2008
BACKGROUND & AIMS: To possibly investigate the validity of the Geriatric Nutritional Risk Index (GNRI) in predicting muscle dysfunction among the uncomplicated elderly when coupled and compared with short dietary assessment. METHODS: A total of 130 (61 males and 69 females) stable-weight, over 70-years-old elderly patients were studied according to ...
Gotshalk Lincoln A - - 2008
Muscle power and strength decrease with age leading to reduced independence and increased health risk from falls. Creatine supplementation can increase muscle power and strength. The purpose of this study was to examine the effects of 7 days of creatine supplementation on body composition, muscular strength, and lower-body motor functional ...
Mierau Andreas - - 2008
Changes of the normal gravitational acceleration are known to affect sensorimotor performance. For example, subjects exposed to three times the normal terrestrial acceleration (+3 Gz) in a centrifuge will produce exaggerated isometric force. The present study compares the effects of high-Gz to that of micro-Gz on isometric force production. Twelve ...
Maly Monica R - - 2007
BACKGROUND: Self-efficacy is a determinant of walking performance in older adults with knee osteoarthritis. We examined whether self-efficacy mediated the effect of age, psychosocial, impairment, and mechanical factors on walking performance. METHODS: Fifty-four participants with knee osteoarthritis completed the Six Minute Walk test and Arthritis Self-Efficacy Scale. Independent variables reflected ...
Low Choy Nancy L - - 2007
Age-related changes in strength and somatosensation have a negative impact on balance with advanced age. Knowledge of the decades of life when strength and somatosensation show initial and subsequent reductions could inform balance assessment and targeted preventive intervention. We report a cross-sectional study investigating strength and somatosensation of 316 healthy ...
Yazicioglu Kamil - - 2007
OBJECTIVE: To investigate the effect of playing football (soccer) on balance, muscle strength, locomotor capabilities, and health-related quality of life in subjects with unilateral below-knee amputation. DESIGN: Cross-sectional controlled study. RESULTS: Difference in KAT dynamic balance scores obtained 3 days after was statistically significant in the study group (P < ...
Hewett Timothy E - - 2008
Our purpose was to determine if females demonstrate decreased hamstrings to quadriceps peak torque (H/Q) ratios compared to males and if H/Q ratios increase with increased isokinetic velocity in both sexes. Maturation disproportionately increases hamstrings peak torque at high velocity in males, but not females. Therefore, we hypothesised that mature ...
Smits-Engelsman B - - 2008
The aim of this study is to investigate potential differences in fine motor control between strength trained (ST) and non-strength trained (NT) individuals. By use of an isometric force production task, two groups, 20 ST (mean age 25.6, SD 4.9) and 19 NT (mean age 24.1, SD 2.9) male individuals, ...
Semproli Samantha - - 2007
The aim of the study was to investigate the relationships between handgrip and pinch strength values with basic body (body height, body mass, BMI) and with specific hand anthropometric parameters (fingers spans, lengths and perimeters) in prepubertal children. Body height, body mass and five fingers spans, lengths and perimeters were ...
Bohannon Richard W - - 2007
The sit-to-stand (STS) maneuver is important to everyday function, but independence in the activity is often lost after stroke. This study sought to determine the importance of knee extension force and body weight to independence in STS. Sixty-one primarily elderly individuals admitted for acute rehabilitation after stroke participated. Isometric knee ...
Dickinson Chris - - 2007
PURPOSE: To determine whether reading speed with a hand-held magnifier is influenced by age-related manual dexterity decline. METHODS: Two groups of normally sighted individuals who were inexperienced in the use of a magnifier were recruited. The older group comprised 15 subjects 60 to 85 years of age, and the younger ...
Seitzberg Aase - - 2008
OBJECTIVE: The objective of this study was to evaluate the prediction of ambulation in adults with myelomeningocele from muscle strength testing and ambulation in early life. MATERIALS AND METHODS: Fifty-two myelomeningocele (MMC) individuals at the age 18-37 years at follow-up were studied. Information on muscle strength and ambulatory function in ...
Chung Linda H - - 2007
During voluntary contractions, the skeletal muscle of healthy older adults often fatigues less than that of young adults, a result that has been explained by relatively greater reliance on muscle oxidative metabolism in the elderly. Our aim was to investigate whether this age-related fatigue resistance was eliminated when oxidative metabolism ...
Hoffrén M - - 2007
Muscle- and movement-specific fascicle-tendon interaction affects the performance of the neuromuscular system. This interaction is unknown among elderly and consequently contributes to the lack of understanding the age-related problems on neuromuscular control. The present experiment studied the age specificity of fascicle-tendon interaction of the gastrocnemius medialis (GM) muscle in drop ...
Milano Giuseppe - - 2008
The aim of this study was to compare the mechanical behavior under cyclic loading test of single-row and double-row rotator cuff repair with suture anchors in an ex-vivo animal model. For the present study, 50 fresh porcine shoulders were used. On each shoulder, a crescent-shaped full-thickness tear of the infraspinatus ...
Kulas Anthony - - 2008
Although both trunk mass and trunk position have the potential to affect lower extremity biomechanics during landing, these effects are not well understood. Our overall hypothesis stated that both trunk mass and trunk position affect lower extremity biomechanics in landing. Thus, our purpose was to determine the effects of an ...
Lemmer Jeffrey T - - 2007
To assess the influences of age and sex on regional changes in 1 repetition maximum (1RM) strength, 10 young men (20-30 years), 8 young women (20-30 years), 11 older men (65- 75 years), and 10 older women (65-75 years) were studied before and after a 24-week whole-body strength training program. ...
Almuzaini Khalid S - - 2007
The main purpose of the present study was to determine isokinetic strength and endurance, isometric strength, and anaerobic power for untrained healthy Saudi children and adolescents. The secondary purpose was to evaluate the effects of age in relation to anthropometric characteristics on strength and anaerobic performances. Forty-four (untrained) 11- to ...
Schaap Laura A - - 2008
Progressive declines in serum levels of testosterone parallel the decline in physical performance and muscle strength in ageing men, although findings are not conclusive. We examined whether levels of testosterone were associated with 3-year decline in physical performance and muscle strength in older men. Longitudinal data were available for 486 ...
Bartali, Benedetta
Understanding how to maintain independence and prevent disability in older persons represents a priority in aging research. Although undernutrition is considered as a putative and potentially modifiable factor contributing to decline in physical function with aging, there is a lack of empirical evidence of its effect on consequent decline in ...
Marschik Peter B - - 2007
The aim of the study was to describe a developmental trend of hand use for picking up and stacking blocks from the age of 18 months to 7 years. A second aim was to determine whether there is a relationship between right-hand use while building a tower and manual laterality ...
Baytur Yesim Bulbul - - 2007
OBJECTIVE: To investigate pelvic floor muscle function and anatomy after childbirth in continent women differing in obstetric history. STUDY DESIGN: Young, continent women, age range 20-40 years, were recruited into 3 groups: 1. elective, prelabor cesarean delivery (n =12); 2. vaginal delivery (n = 15); and 3. age-matched nulliparas as ...
Yassierli - - 2007
Most existing evidence regarding the effects of age on muscular fatigue has focused on prolonged isometric contractions, repeated maximum dynamic contractions and individuals beyond traditional retirement age (>65 years). In the present study, age-related differences in muscle fatigue during submaximal dynamic efforts were examined. There were 24 younger (18-25 years) ...
Lee Claire E CE School of Clinical Sciences, Faculty of Medicine, University of Liverpool, Liverpool L69 3GA, - - 2007
Ageing is associated with a progressive decline of muscle mass, strength, and quality, a condition known as sarcopenia. Due to the progressive ageing of western populations, age-related sarcopenia is a major public health problem. Several possible mechanisms for age-related muscle atrophy have been described; however the precise contribution of each ...
Olivier Pierre E - - 2008
To delineate and compare the isokinetic neck strength profile of senior elite rugby players. One hundred and eighty-nine rugby players (mean; 95% confidence intervals: 24.31; 23.87-24.75 years) were sampled from South African provincial teams and assessed anthropometrically and isokinetically according to a set protocol. Specially designed equipment was used to ...
Amirjani Nasim - - 2007
The Moberg Pick-Up Test is a standardized test for assessing hand dexterity. Although reduction of sensation in the hand occurs with aging, the effect of age on a subject's performance of the Moberg Pick-Up Test has not been examined. The primary goal of this study was to examine the impact ...
Fricke Oliver - - 2008
The present study comprised 29 adolescents and young adults (15 females, 14 males; aged 14.1-23.9 years) with congenital heart disease (CHD) and focused on the interaction between the biomechanical system and CHD. Individuals were characterized by auxological (height, weight), dynamometric (MIGF, maximal isometric grip force) and mechanograpic parameters (Vmax, maximal ...
Robinson Ryan L - - 2007
STUDY DESIGN: Cross-sectional. OBJECTIVES: To investigate whether females seeking physical therapy treatment for unilateral patellofemoral pain syndrome (PFPS) exhibit deficiencies in hip strength compared to a control group. BACKGROUND: Decreased hip strength may be associated with poor control of lower extremity motion during weight-bearing activities, leading to abnormal patellofemoral motions ...
Bourdel-Marchasson I - - 2007
OBJECTIVE: to explore muscle mitochondria function with respect to age, functional status and nutrition in community-living and recovering hospitalized older subjects. MEASUREMENTS: subjects were assessed for nutrition, hand-grip strength, 10-meter gait time, a modified timed get-up-and-go test and activities of daily living score (ADL). 31P magnetic resonance spectroscopy (31P MRS) ...
Stierwalt Julie A G - - 2007
PURPOSE: This investigation sought to add to the extant literature on measures of normal tongue function, to provide information on measures of tongue function in a group of individuals with oral phase dysphagia, and to provide a comparison of these 2 groups matched for age and gender. METHOD: The Iowa ...
Sole Gisela - - 2007
OBJECTIVE: To assess reliability of isokinetic peak torque and work for knee flexion and extension. DESIGN: Single-group test-retest. SETTING: University laboratory. PARTICIPANTS: Eleven men and 7 women (mean age, 21 y). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURE: Peak torque and work for concentric and eccentric knee extension and flexion were ...
Huang Chien-Ting - - 2007
In reference to electromyographic measurement, the study was conducted to reassess differences in the behavior of fatigue-related neuromuscular function between young and elderly humans with limb acceleration (LA). Fourteen young and fourteen elderly subjects performed sustained index abduction at 75% of their maximal voluntary contractions (MVC) until task failure. Measures ...
Demaille-Wlodyka Samantha - - 2007
STUDY DESIGN: Exploratory experimental design. OBJECTIVE: To assess cervical range of motion (ROM) and ability to return the head to a neutral position in healthy subjects according to age and sex. SUMMARY OF BACKGROUND DATA: Cervical ROM and ability to return the head to a neutral position have been studied, ...
Ogston Jena B - - 2007
BACKGROUND: Evidence that persons with multidirectional instability (MDI) of the shoulder have abnormal shoulder kinematics is limited. A kinematic description of scapulothoracic and glenohumeral motion can assist both conservative and surgical rehabilitative programs. HYPOTHESIS: Persons with MDI of the shoulder demonstrate increased anterior and inferior glenohumeral translation and decreased scapular ...
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