Search Results
Results 401 - 450 of 1403
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Ozawa Takahisa - - 2008
A new type of 'Passive Exercise Equipment' has been developed, which can induce muscular contraction of the functional muscles around knee joint. Not only user s who are not eager to exercise but also patients with both type 2 diabetes and knee joint osteoarthritis can perform exercise just by following ...
Bonnetblanc François - - 2008
Fitts's law states that movement time (MT) is related to precision (index of difficulty, ID). The introduction of a new effector in a Fitts's task induces an increase of the MT/ID slopes (Langolf et al., 1976). It is unclear, however, whether kinetics or pure coordinative constraints based on the introduction ...
Kawasaki Takayuki - - 2008
We have previously demonstrated the efficacy of therapeutic exercise for osteoarthritis (OA) of the knee. This study was performed to examine the additive effects of glucosamine or risedronate on the exercise therapy. In this study, 142 female patients with moderate OA of the knee, who had been recommended to undergo ...
Fraenkel Liana - - 2008
PURPOSE: Exercise is an important adjunctive treatment for knee OA; however it is underutilized, in part because of the known difficulties related to initiating and adhering to exercise programs. Although there are ample data documenting the latter, patient preferences for exercise in comparison to other options have not been examined. ...
Grodski Mark - - 2008
To enable a safe, effective return to daily functional activities and to prevent premature knee joint osteoarthritis, adults undergoing anterior cruciate ligament (ACL) surgery require carefully designed and appropriate rehabilitation strategies. In this article we critically examine the contemporary body of literature concerning the application and outcomes of various knee ...
Fox Jason - - 2008
Inversion ankle sprains can lead to a chronic condition called functional ankle instability (FAI). Limited research has been reported regarding isokinetic measures for the plantar flexors and dorsiflexors of the ankle. To examine the isokinetic eccentric torque measures of the ankle musculature in participants with stable ankles and participants with ...
Fransen Marlene - - 2008
Biomechanical factors, such as reduced muscle strength and joint malalignment, have an important role in the initiation and progression of knee osteoarthritis (OA). Currently, there is no known cure for OA; however, disease-related factors, such as impaired muscle function and reduced fitness, are potentially amenable to therapeutic exercise. To determine ...
Clisby Elizabeth F - - 2008
A principal cause of subacromial impingement (SAI) is failure of the rotator cuff to center the humeral head in the glenoid during shoulder motion, counteracting the effect of the deltoid. As rehabilitation of the rotator cuff endeavors to restore balance between these muscle groups, the purpose of this companion study ...
Yuktasir Bekir - - 2009
The purpose of the present study was to investigate the long-term effects of two different stretching techniques on the range of motion (ROM) and on drop jump (DJ). DJ scores were assessed by means of a contact mat connected to a digital timer. ROM was measured by use of a ...
Wang Yangyang - - 2007
Five entangled melts, with the number of entanglements per chain ranging from 25 to 160, have been studied to illustrate how cohesive strength can be overcome in either continuous or interrupted extension (i.e., during or after uniaxial stretching). The internal elastic stress due to chain deformation from imposed strain appears ...
Howe T E - - 2009
Exercise is recommended as a non-pharmacological, non-invasive intervention for osteoarthritis (OA) of the knee. Physiological data concerning the duration and intensity of muscle activity or physical activity profiles during normal daily activity for this population is lacking. Our aim was to explore this using surface Electromyography (EMG) and accelerometer-based activity ...
Shin Choongsoo S - - 2007
Following ACL injury a reduction in the peak knee flexion moment during walking (thought to be created by a decrease of quadriceps contraction) has been described as an adaptation to reduce anterior tibial translation (ATT) relative to the femur. However, the amount of ATT caused by quadriceps contraction is influenced ...
Blaney Davidson E N - - 2007
OBJECTIVE: Osteoarthritis (OA) is characterized by cartilage damage, synovial fibrosis, and osteophyte formation. Both transforming growth factor beta (TGFbeta) and bone morphogenetic protein 2 (BMP-2) can induce the formation of osteophytes during OA, but their specific role in this process is unclear. The purpose of this study was to investigate ...
Kanai Akira - - 2008
The purpose of this study was to investigate the effectiveness and safety of ambulatory training in patients with acetabular dysplasia. To achieve this, we studied the hip joint moment in subjects walking with laterally and horizontally elevated arms and changing speeds as a form of training to strengthen hip joint ...
Benjaminse Anne - - 2008
To examine the kinematic characteristics of the hip and knee during a single-leg stop-jump task before and after exercise-to-fatigue, and to determine if the fatigue response is gender-dependent. Lower extremity kinematic measurements were taken of male and female subjects while they performed a sports functional task before and after fatigue ...
Cagnie Barbara - - 2008
The purpose of this study was to investigate the recruitment pattern of deep and superficial neck flexors evoked by three different cervical flexion exercises using muscle functional MRI. In 19 healthy participants, transverse relaxation time (T2) values were calculated for the longus colli (Lco), longus capitis (Lca), and sternocleidomastoid (SCM) ...
Rohlmann Antonius - - 2008
BACKGROUND: Little is known about the loads acting on a vertebral body replacement within the first month postoperatively. Among other things, such data are required for choosing the optimal rehabilitation program for a patient and for evaluating the efficacy of aids like crutches and braces. METHODS: Telemeterized vertebral body replacements ...
Ianuzzi Allyson - - 2009
Quadruped animal models have been validated and used as biomechanical models for the lumbar spine. The biomechanics of the cat lumbar spine has not been well characterized, even though it is a common model used in neuromechanical studies. Compare the physiological ranges of motion and determine torque-limits for cat and ...
Buteau Josephine L - - 2007
Traditional rehabilitation for shoulder dislocation has a success rate of only 20%. The body blade has been hypothesized to strengthen the muscles stabilizing the shoulder girdle by training the contractile tissues directly and also indirectly affecting the joint and surrounding noncontractile tissues when responding to rapid positional changes and mechanical ...
Flanagan Sean P - - 2007
Bilateral movements are common in human movement, both as exercises and as daily activities. Because the movement patterns are similar, it is often assumed that there are no bilateral differences (BDs; differences between the left and right sides) in the joint torques that are producing these movements. The aim of ...
Ogrodzka Katarzyna - - 2007
BACKGROUND: The main goal of this study was to estimate the variability of gait parameters in patients diagnosed with arthroplasty of the knee joint. Angular changes of the knee joint in three planes, and spatio-temporal parameters of gait were analysed. MATERIALS AND METHODS: A three-dimensional analysis of locomotion patterns was ...
Noé Frédéric - - 2009
The present study investigates the mechanisms underlying changes in postural strategy that occur to compensate for mechanical ankle joint restrictions induced by wearing ski-boots during postural exercises. Fourteen experienced skiers were asked to stand as still as possible in a stable (STA) posture and in 2 postures with instability in ...
Hasegawa M - - 2008
OBJECTIVE: Intra-articular injection of hyaluronan (HA) is frequently used to treat knee osteoarthritis (OA). We studied whether HA injections induced significant changes in levels of biochemical markers in synovial fluid (SF). In addition, we investigated the possibility of predicting the effectiveness of HA based on these biochemical markers. METHODS: Twenty-eight ...
Kontaxis Andreas - - 2008
Scapula motion is significant for support of the arm and stability of the shoulder. The effect of the humeral elevation on scapular kinematics has been well investigated for normal subjects, but there are limited published studies investigating adaptations after shoulder arthroplasty. Scapula kinematics was measured on 10 shoulders (eight subjects) ...
Mesfar W - - 2008
Open kinetic chain (OKC) extension exercises are commonly performed to strengthen quadriceps muscles and restore joint function in performance enhancement programs, in exercise therapies and following joint reconstruction. Using a validated 3D nonlinear finite element model, the detailed biomechanics of the entire joint in OKC extension exercises are investigated at ...
Wiater J Michael - - 2007
The inferior capsular shift procedure described by Neer is an effective treatment for multidirectional shoulder instability. To determine the amount of volume reduction that occurs with the inferior capsular shift procedure, 13 cadaver shoulders were dissected down to the capsule. A viscous liquid was injected into each shoulder and the ...
Kokkonen Joke - - 2007
PURPOSE: This study investigated the influence of static stretching exercises on specific exercise performances. METHODS: Thirty-eight volunteers participated in this study. The stretching group (STR) consisted of 8 males and 11 females whose activity was limited to a 10-wk, 40-min, 3-d.wk(-1) static stretching routine designed to stretch all the major ...
Mottram Sarah L - - 2009
Exercises to retrain the orientation of the scapula are often used by physiotherapists to optimise shoulder girdle function. The movements and muscle activity required to assume this position have not yet been quantified. Further, patients often find this a difficult exercise to learn accurately, with no data being available on ...
Reinold Michael M - - 2007
Investigators have observed electromyographic (EMG) activity of the supraspinatus muscle and reported conflicting results. To quantify EMG activity of the supraspinatus, middle deltoid, and posterior deltoid muscles during exercises commonly used in rehabilitation. One-factor, repeated-measures design. Controlled laboratory. Twenty-two asymptomatic subjects (15 men, 7 women) with no history of shoulder ...
Kawahara Y - - 2008
To investigate whether low FiO2 affects muscle oxygenation and the rate of decline in peak torque (DR) during isokinetic knee extension, subjects performed 50 isokinetic knee extensions at 180 degrees /s and at 0.5 Hz while inhaling low O2 gas (12 %O2; H) or air (N). Muscle oxygenation kinetics was ...
Lu Tung-Wu - - 2007
PURPOSE: To determine the joint loading during elliptical exercise (EE) by a detailed three-dimensional dynamic analysis, and to compare the results with those during level walking. METHODS: Fifteen male adults performed level walking and EE while 3D kinematic data, right pedal reaction forces (PRF), and ground reaction forces (GRF) were ...
Hanna Fahad - - 2007
OBJECTIVE: Exercise has been strongly promoted for the prevention of the major diseases of aging in women, such as cardiovascular disease and osteoporosis. However, conflicting data exist as to whether exercise benefits joint health and thus helps protect against degenerative processes such as knee osteoarthritis. The aim of this study ...
Laheru Dhruvkumar - - 2007
OBJECTIVE: To improve the reproducibility of testing hip abduction and adduction using an isokinetic dynamometer by a novel testing protocol. DESIGN: Test-retest design. SETTING: Biodynamics laboratory. PARTICIPANTS: Fifteen healthy subjects (9 men, 6 women; age, 22.4+/-0.5 y) were recruited. INTERVENTIONS: Two setups were compared: the first according to manufacturer's guidelines ...
Sakamoto Ana Cristina Lamounier - - 2009
BACKGROUND: Changes in activation patterns of hip extensors and pelvic stabilizing muscles are recognized as factors that cause low back disorders and these disturbances could have an impact on the physiological loading and alter the direction and magnitude of joint reaction forces. OBJECTIVE: To investigate activation patterns of the gluteus ...
Greenwood Jim - - 2007
A fly-wheel ergometer (FWE) offering resistance training of the knee extensors has been designed for space travel and found to be effective during bed rest. The possibility exists that this device is also effective in training the knee extensors after knee injury. The purpose of this study was to compare ...
Laudani L - - 2009
The study investigated relations between effects of repeated ankle plantar-flexion movements exercise on the soleus Hoffmann (H) reflex and on postural body sway when maintaining upright stance. Ten young volunteers performed five sets of ankle plantar-flexions of both lower limbs. Assessment of the feet centre-of-pressure (COP) displacement and H-reflex tests ...
Wang Hsing-Kuo - - 2008
The purpose of this study was to evaluate the utility of ultrasonography (US) in determining the morphological changes of the iliotibial band (ITB) with the modified Ober maneuver. Forty-four subjects (23 men and 21 women, mean age (+/- SD), 24.7+/-4.7 years) who had no previous history of lower back, gluteus, ...
Mündermann Annegret - - 2008
The purposes of this study was to test a mechanism to reduce the knee adduction moment by testing the hypothesis that increased medio-lateral trunk sway can reduce the knee adduction moment during ambulation in healthy subjects, and to examine the possibility that increasing medio-lateral trunk sway can produce similar potentially ...
Sutbeyaz Serap Tomruk - - 2007
OBJECTIVE: The objective was to determine whether knee osteoarthritis (OA) reduces exercise ambulatory capacity and impairs quality of life (QOL) in obese individuals. RESEARCH METHODS AND PROCEDURES: There were 56 subjects, with and without knee OA, who were obese. The subjects were evaluated with anthropometric measurements, a body composition assessment, ...
Beedle Barry B - - 2007
According to the American College of Sports Medicine (1), there is limited information about when to stretch during an exercise session. The purpose of this study was to determine if the placement of static stretching, either before or after a workout, would affect flexibility in the hip, knee, and ankle. ...
Jensen Randall L - - 2007
Because the intensity of plyometric exercises usually is based simply upon anecdotal recommendations rather than empirical evidence, this study sought to quantify a variety of these exercises based on forces placed upon the knee. Six National Collegiate Athletic Association Division I athletes who routinely trained with plyometric exercises performed depth ...
Lehman Gregory J - - 2008
BACKGROUND: The aim of the current study is to determine if performing push up exercise variations on an unstable surface (Swiss ball) influences EMG amplitude of the scapulothoracic muscles when compared with a stable surface (Bench). METHODS: Ten males were recruited from a convenience sample of college students. Surface electromyograms ...
Wright W G WG Neurological Sciences Institute, Department of Neurology, Oregon Health & Science University, 505 NW 185th Ave, Beaverton, OR 97006, USA. - - 2007
A cardinal feature of Parkinson's disease (PD) is muscle hypertonicity, i.e. rigidity. Little is known about the axial tone in PD or the relation of hypertonia to functional impairment. We quantified axial rigidity to assess its relation to motor symptoms as measured by UPDRS and determine whether rigidity is affected ...
Huang C-C - - 2008
The aim of this study was to compare the flexibility of the upper extremities in collegiate students involved in Aikido (a kind of soft martial art attracting youth) training with those involved in other sports. Fifty freshmen with a similar frequency of exercise were divided into the Aikido group (n ...
Bakhtiary A H - - 2008
SUBJECT: Conservative treatment of patellar chondromalacia has been the subject of several studies. One recommended treatment is a strengthening exercise of the quadriceps muscle, which may be performed in closed or open kinetic chains. This study was designed to compare the effect of straight leg raise (SLR) and semi-squat exercises ...
Toumi Hechmi - - 2007
PURPOSE: To investigate the gross anatomy of the distal portion of the quadriceps, and to compare the relative contributions of the vastus medialis oblique (VMO) and vastus lateralis (VL) during dynamic weight-bearing conditions. METHODS: Dissection was carried out on 10 cadavers by a longitudinal incision from the anterior superior iliac ...
Flanigan Ryan M - - 2007
A recent study found nonweightbearing stretching exercises specific to the plantar fascia to be superior to the standard program of weightbearing Achilles tendon-stretching exercises in patients with chronic plantar fasciitis. The present study used a cadaver model to demonstrate the influence of foot and ankle position on stretching of the ...
Ferreira Gustavo Nunes Tasca - - 2007
OBJECTIVE: Studies that investigated possible correlations between flexibility and muscular performance are scarce in the literature. Therefore, the purpose of this study was to investigate the impact of a program of static stretching on the flexibility of the hamstrings and on muscular performance of the knee flexors and extensors. DESIGN: ...
Galinsky Traci - - 2007
BACKGROUND: This study expanded previous NIOSH-IRS research examining the effects of rest breaks and stretching exercises on symptoms and performance in data-entry workers. METHODS: All workers spent 4 weeks with conventional breaks (two 15 min breaks per day) and 4 weeks with supplementary breaks (two 15 min breaks plus four ...
Chailleux Nadège - - 2007
The objective of this study was to determine the immediate postoperative effect of 2 corrective operations for cranial cruciate ligament (CCL)-deficient stifle by evaluating 3-dimensional (3-D) stifle kinematics. Ten hindlimbs from large-breed canine cadavers were used. Range of motion was induced by applying 100 N of traction on the quadriceps ...
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