In this paper, considering all the linear and nonlinear inertia terms of moving masses on a flexible beam, the dynamic response and dynamic stability of the beam are studied. Homotopy perturbation method is used to perform the analysis and results are provided in a stability map for the different values of mass and velocity of the moving masses. It is concluded that there is a borderline in the...

Introduction: Balance is one of the most important factors regarding physical fitness and is also considered a basic element in controlling the posture and in carrying out sports skills. Thus the purpose of this study was to investigate the influence of the eight weeks of jumping training on balance and core stability of female. Methods: Static and dynamic balance and core stability of 40 he...

Purpose: Recently, the Functional Movement Screen (FMS) and Y Balance Tests are used to assess the key movement patterns, dynamic stability and to identify individuals at high risk of injury. But, there are few studies to assess the relationship between the FMS test and Y Balance Test. This study aimed to assess the relationship between dynamic stability and the FMS test. Methods: The subjects...

Introduction: Musculoskeletal disorders of the neck and shoulders are the most common reported complaints in sitting occupations such as dentistry. These disorders, in addition to create pain, can cause the impairment of postural control mechanisms. The aim of this study was to investigate the relationship between the postural stability disorder and the forward head posture (FHP) in the dentist...

Purpose: People who have Down Syndrome (DS) usually have deficiencies in muscular strength, muscular endurance, the development of motor skills, postural control, and gait cycle. These muscular and balance deficits impair daily living activities in people with DS; therefore, attention to improving these factors in various recreational environments seems necessary. Thus, the present study aimed ...

it is definitely necessary to understand the concept and behavior of causation of life insurance policies and its determinants for insurance managers, regulators, and customers. for insurance managers, the profitability and liquidity of insurers can be increasingly influenced by the number of causation through costs, adverse selection, and cash surrender values. therefore, causation is a materi...