Anca Stanciu

Influence of Carpal Tunnel Syndrome Induced by Vibratory Actions upon Fingers Mobility

Carpal Tunnel Syndrome (CTS) is a kind of neuropathy developed due to irritated tendons that may affect the passageway made of ligaments and bones, located at the wrist (base of palm). People affected by CTS develop symptoms such as pain in the carpal area, sometimes reflected along the entire arm, swelling, difficulties in finger motions, reduced range of motion due to pressure upon the median nerve. The present paper performs a case study upon a female subject affected by CTS. The subject is investigated and then guided to perform some exercises using the software attached to the used equipment (sensory gloves), over a controlled period of time with rehabilitation purposes.

Some Mechanical Characteristics Of Materials For Dental Prosthetics.

The paper presents some researches concerning the mechanical properties of composite materials used for prosthetic dental elements. After a short introduction concerning the general strains and loads that usually apply upon prosthetic works, the authors present the virtual model of a molar tooth subjected to the most common actions, using finite element method. Then the results are further shown by means of experimental methods and finally the conclusion concerning the possible use of fibre reinforced composite materials are presented.

Influence of Sound Physical Characteristics on Some Human Physiological Parameters

The influence of certain types of sounds as health hazards for human beings is a constant preoccupation for researchers during the last decades. Not only it is likely to inflict auditory effects but it is proven to produce other physiological as well as psychological effects upon people subjected to noise. Of course, not all types of sounds are damaging for health, their influence is strongly related to their physical characteristics like: frequency, intensity or harmony. Each change in these physical characteristics may produce different effects upon human health that can be monitored by help of several physiological parameters. As many researchers focused upon the auditory effects and psychological issues under the influence of noise, our team headed towards a less investigated aspect related to the risk of cardio-vascular diseases for persons subjected to unhealthy types of sounds, a risk which was mentioned in a thematic issue of the European Commission in 2015 and also some influences regarding posture control.

Analysis of Acoustic Response and Treatment of a Rehabilitated Lecture Room

Lecture room acoustics plays an utmost important role in the educational process, as all attendees should be able to listen in the best conditions to the information delivered by the teaching person. Many universities have old lecture rooms, some of them recently rehabilitated or renovated without taking into consideration the acoustic properties of the room. As many students sitting at the farther end of the room complain of problems regarding the lecture acoustics, the team selected one of the renovated lecture rooms in order to analyze the acoustic response in all locations and propose solutions for acoustic treatment.

Effect of shoulder-elbow position upon the force applied by hand

Several situations require the reliability of hand grasp in different relative positions of the shoulder-elbow system, like handling control elements of working equipment, sporting devices for athletes or rehabilitation supports for temporary or permanently lower limbs impaired people. Therefore the paper presents an experimental method of determining the variation of both anatomical and physiological forces applied by hand, in different positions of the shoulder-elbow system, in static conditions. The experiment was performed upon 145 female subjects and 40 male subjects, aged 20–25, all right-handed, with no previous neurological or muscular diseases, using four different positions of the shoulder-elbow system. Results were statistically analyzed based upon the recording sheets filled in during the tests.

Statistical analysis of forces developed by fingers

As fingers represent the main executive instrument that assisted human evolution by performing various activities, starting with work and fight for survival, the flawless functioning of their grip and motion capacity should be a major preoccupation for researchers in biomechanics and ergonomics areas. More and more robotics becomes involved in rehabilitation issues requiring accurate information regarding the real values of the forces exerted by fingers during various activities. The paper aims therefore at providing a thorough statistical analysis of the experimental results determined on a sample of healthy active subjects in order to achieve a useful tool in designing rehabilitation devices and more ergonomic equipments.

Analysis of Instability Induced by Weight Carrying during Occupational Activities

In order to work in proper conditions, the human body should be avoiding repeated physical actions in awkward positions, forceful exertions, vibrations, etc., as musculoskeletal disorders are the most encountered health issues during work activities. Loss of balance during physical activities can be the trigger for additional muscular strains and also the cause of many accidents or other unpleasant events. The present paper aims at studying a group of young, healthy and active people in order to highlight the conditions that may produce loss of balance leading to additional muscle strain and the manner they influence upon their stability.

Mobility Assessment and Rehabilitation in a Case of an Old Person Suffering Triple Humeral Fracture

As the concern for the welfare of elderly people is rather poor in our country, unlike the other countries in the EU, it is a legitimate priority to look for improvements of the situation. Therefore the paper aims at presenting a non-invasive and creative procedure that allows the assessment and helps the rehabilitation of elderly people who suffer various physical traumas and are also affected by other diseases like high blood pressure, osteoporosis, osteoarthritis, etc. A case study is developed as a model for other future assessments and procedures in order to open new opportunities for the improvement of elderly people life quality.

Experimental Approaches Regarding the Elastic Properties Bending of Roving

Within a composite material the materials shaped as fibres will take the most part of the tensions acting upon the matrix, which obviously presents less stiffness than the fibres. In order to accomplish the assessment of the behaviour for a polymeric composite part we deal with a lot more complicated issues than for the assessment of a simple metal part subjected to the same loads. The idea is to accomplish the balance of the individual layer stresses with the applied traction forces and bending moments and study the laminate as a whole.

Microscopic Analysis Following Bending of Roving Type Composite Material

Microscopic analysis represents a non-invasive method for both intermediate and final control. It can be performed without very expensive and complicated equipment and may be available for all kind of composite material parts meant to be used in various fields, starting with industry and finishing with medicine and sports. Using microscopic analysis allows obtaining information about the structure of the material, aspect of the ruptures after the specimen’s failure, thus being able to decide whether the material is suitable for the intended purpose or some changes in its structure, composition or manufacturing technique is required.