This paper deals with kinematics and dynamics of the human shoulder in order to obtain the workspace related to the reachability of the wrist and applications to determine load for the wheelchair. The model contains six revolute degrees of freedom (D.O.F), two in costoclavicular and three in the shoulder joint and one in the elbow joint, while a six D.O.F model was developed according to given ...

This paper is an investigation of low rate loading of the shoulder. The paper first presents a review of the literature on the impact tolerance of the shoulder in high and low rate loading conditions. Currently, there are no injury criteria, nor biofidelic anthropomorphic test dummies for these low rate scenarios. This study investigates dummy loading situations that are known to be non-injurio...

background: human body posture influences on his/her physiological functions. the purpose of this study was to investigate the effect of forward shoulder correction on pulmonary function of elementary female students. methods: subjects of this quasi-experimental research were two groups (n=20) of students with normal posture (np) and forward shoulder posture(fsp)  which is divided randomly into...

The human shoulder is a complicated musculoskeletal structure and is a perfect compromise between mobility and stability. The objective of this paper is to provide a thorough review of previous finite element (FE) studies in biomechanics of the human shoulder complex. Those FE studies to investigate shoulder biomechanics have been reviewed according to the physiological and clinical problems ad...

The shoulder joint has some specific properties in the human body. It has adjusted to the mechanical demands of a vertical body position more than any other joint. The shoulder has the largest motion range of all joints in the human body. In addition to the shoulder is exposed cosmetically, particularly in women. Extensive surgical exposures of the shoulder joint were commonly used when shoulde...

objectives: the purpose of this study was to investigate the effect of 4-weeks rehabilitation, electrotherapy and kinesiotherapy programs on range of motion shoulder pain in men with idiopathic frozen shoulder. methods & materials: this was a semi experimental study on 18 patient (means±sd age 56.4±6.7 year, height 175.1±5.3 cm, weight 73.1±7.5 kg, history patient 9.2±5.1 month) who referred to...

We have been developing exoskeletal robots in order to assist the motion of physically weak persons such as elderly persons or handicapped persons. In our previous research, a prototype of a two degree of freedom exoskeletal robots for shoulder joint motion assist have been developed since the shoulder motion is especially important for people to take care of themselves in everyday life. In thi...

Upper-arm evaluation including shoulder motion in physiotherapy has no three-dimensional tool for an arm-functioning evaluation, which hampers an uniform, objective comparison. Human shoulder complex models suffer from lack of shoulder girdle kinematic data. A kinematic shoulder-complex model with six degrees of freedom is proposed as the composition of the inner joint representing the shoulder...