نتایج جستجو برای: joint motion
تعداد نتایج: 391243 فیلتر نتایج به سال:
Optimal load of mobile robots, while carrying a load with predefined motion precision is an important consideration regarding their applications. In this paper a general formulation for finding maximum load carrying capacity of flexible joint mobile manipulators is presented. Meanwhile, overturning stability of the system and precision of the motion on the given end-effector trajectory are take...
Objective: The goal of the present study was to improve the extension and flexion of the elbow joint for rehabilitation purposes, in terms of energy dissipation and of injuries caused by stress imposed on connective tissue by exercise equipments during force transfer , by investigation of viscoelastic property variations during change in speed of motion. Materials & Methods: A sample of five...
Objectives: Disorders of the sacroiliac joint (SIJ) and related structures have been implicated as a potential source of low back and buttock pain. Several types of motion palpation and pain provocation tests are used to evaluate patients suspected of having SIJ disorder. This study is a Descriptive- Correlational Design to investigate the relationship between single motion palpation and pain ...
Objective Running is known as one of the most popular sports for which there is no time and space limit. Recently, due to lifestyle changes, the use of treadmills for walking and running has increased. However, the biomechanical differences in coordination between running on a treadmill at different speeds have not been sufficiently addressed. The aim of this study was to investigate the effect...
Aims and Background: Low back pain is one of the most common musculoskeletal disorders in athletics. The aim of this study was to determine the effect of Movement-Pattern Training on the range of motion of the knee joint in the frontal level in athletes with nonspecific chronic low back pain during sing-leg landing. Materials and Methods: This clinical trial was carried out in University of Mo...
introduction: the shoulder is one of the most vulnerable joints for handball players. frequent throwing movements can change its muscular strength balance and range of motion. however, the balance of strength and range of motion are important factors in injury prevention. the purpose of this study was to compare the internal-to-external ratios of strength rotation and rom rotation in the domin...
Background and purpose: Reports of pattern motion between lumbar spine and hip vary for stoop, loading conditions or the pathology present, such as chronic back pain. Therefore, the purpose of this study was to compare the relative contribution of the hip joint and lumbar spine during stoop lifting in subjects with and without a history of low back pain. Materials and Methods: This clinica...
Abstract: Objectives: Flexion contractures of the proximal interphalangeal joint are of the most common complication result from surgical procedures and traumatic events. Orthotic interventions for treatment of contractures may include serial splinting, serial casting, dynamic and/ or static progressive orthoses, or a combination of these orthoses. This study aimed to determine the effect ...
Abstract Background: The goal of this report is to show our results with extension block technique for treatment of mallet fracture. The indications for this technique were the presence of a large bone fragment, and palmar subluxation. Methods: We retrospectively assessed the results of treatment in 14 mallet fractures which have been treated by extension block technique to determine the ra...
The kinematics and dynamics of two industrial cooperating robots are presented in this paper. The NOC (natural orthogonal complement) method is used to derive the dynamical equations for the motion of two cooperating robots. The joint torques of the two robots are determined based on the optimization techniques in order to obtain unique solution for joint torques. To this end, minimizing the cr...
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