71 - 80 of 118 items :

  • Hygiene and Environmental Medicine x
  • Engineering, other x
Clear All


Introduction: Music motivates, relaxes and stimulates action and is one factor which enhances the pleasure that people feel from a given movement. Thus, from a psychophysical point of view, listening to music is an important aspect in sport and recreation. With this in mind, the aim of the study was to determine any changes in the participants’ psychophysical sphere which resulted from listening to music while swimming. The psychophysical sphere was expressed in relation to the Borg RPE scale (Rating of Perceived Exertion) as well as the Rejeski and Gauvin Exercise-Induced Feeling Inventory (EFI) scale of emotional states.

Material and methods: The participants in the study were not professional swimmers (n = 10). The experiment consisted of two trials in which participants performed the Swimming Cooper test. During the first trial there was no music transmitted while in the second trial specifically selected music was played as the participants swam.

Results: An ANOVA variance analysis (α = 0.05) showed statistically significant differences in the RPE scale (p = 0.04) and across all sensations on the EFI scale (p = 0.001, p = 0.001, p = 0.001, p = 0.001).

Conclusions: Listening to music while swimming has a significant impact on the human psychophysical sphere and is expressed by a perceived exertion scale and the scale of emotional states.

Respondents paid less attention to the discomfort of physical exertion associated with exercise while listening to music. The rating of their emotional states, including positive engagement, revitalization and tranquility considerably increased though the physical exhaustion measures were significantly lower.


This series of articles presents the problem of undertaking the high risk project of modernisation of hydrogen incinerators on a submarine. The article describes technical issues connected with the flow capacity of a modernised hydrogen incinerator.


Introduction: The objective of this paper is to analyse the correlation between pain and the degree of disability, and the lesions shown on radiological examination of KOA.

Material and method: The study encompassed 31 female patients (42 knees) aged 51-70 years, with diagnosed idiopathic knee osteoarthritis. Medical history and analysis of previously performed x-ray scans were conducted. The history included questions regarding pain (VAS, WOMAC index) and the maximum marching distance, the presence of oedema and instability as well as disability in everyday life (WOMAC index). The radiological lesions were assessed using the Kellgren and Lawrence Grading Scale. Moreover, the widths of the joint spaces were measured.

Results: The patients’ pain in everyday activities (WOMAC) showed a positive correlation with the presence of osteophytes (r=0.32), and the intensity of the pain on the VAS correlated with the presence of joint osteophytes (r=0.46) and with the elevation of the intercondylar eminence (r=0.32). The other disorders on the x-ray image did not correlate with the pain. Positive correlations were identified between the presence of oedema (r=0.57) and instability (r=0.39), and the presence of lesions in the patellofemoral joint. The patients’ disability in everyday activities (WOMAC) showed a negative correlation with the width of the joint spaces (r<-0.34). However, no correlations were observed between the remaining x-ray lesions and the WOMAC index.

Conclusions: Only a small number of subjects showed a correlation indicating an interdependency between the painful sensations and the degree of disability versus the progression of radiographic lesions. Among the KOA risk factors, it is worth noting the presence of obesity which, in these studies, affected more than half of the female patients.


The article presents a dermatosis that occurs in tropical and subtropical countries. Though the definitive hosts of the cutaneous larva migrans parasite are animals, humans can become accidental hosts and they are infected when their skin comes into contact with damp soil, most frequently sand. The disease is only present in the epidermis where an itch is brought about by the mining activity of the larva. Sunbathers and divers who put on their gear on a beach, on account of the epidermis maceration caused by a prolonged exposure to water, are particularly susceptible to the penetrative activities of the larva. In Poland the cutaneous larva migrans is in most cases mistaken for nettle rash or eczema.


The aim of this study was the electromyographic analysis of the erector spinae muscle, using the Noraxon Tele Myo DTS equipment. It’s used to test the neuromuscular function, during physical activity. It allows for detailed localization of the pathological changes in the muscle tissue. It can be also helpful to define the functional disorders of the muscular system in children with cerebral palsy. For the purpose of the study, a six-year-old girl with this disease was examined, one of the types of EMG - surface electromyography being used. The problem which is of primary importance in children with cerebral palsy is a widely understood damage of the musculoskeletal system. The test was performed in five starting positions, with the electrodes placed on the lumbar spine. As a result of the analysis, a motor skills disorder, asymmetry of muscle tension and dystonia was diagnosed. Dystonia may be the result of other disease, characteristic to children with cerebral palsy – scoliosis.


The article presents the results of research into the therapeutic effect of hyperbaric oxygenation on bacterial infections performed on an animal model. The studies were performed on Porton mice infected intraperitoneally with haemolysing streptococci and later subjected, over a 3-day period, to 5 exposures of hyperbaric oxygenation at a pressure of 2.8 ata. Depending on the research group, the treatment was commenced after 24, 48, 72 and 96 hours from the moment of infection. Some of the animals died during the experiment.8 and 12 days from the date of infection, selected animals of each group were put to death and subjected to post mortem examination. A statistically significant positive effect of hyperbaric treatment on the survival rate, as well as on the development of complications (liver abscesses), was observed in those animals where the hyperbaric oxygenation was applied at an early stage. In groups where the therapy was initiated later, no positive effect was noted, and the complications tended to develop more rapidly.


In this publication, we adduce examples of the use of hyperbaric oxygen therapy in urinary tract diseases. Hyperbaric oxygen therapy has been proved to have a positive influence on the kidneys of animals with diabetes, sepsis or undergoing chemotherapy. In the literature, we can also find many examples of the use of hyperbaric therapy with good clinical outcomes in human patients with prostatic hypertrophy, pyelonephritis, and hemorrhagic cystitis. The first trials of this kind of treatment of urinary tract diseases were started at the end of the twentieth century. In spite of the promising results, and numerous reports on the effectiveness of this non-invasive method of treatment, it is not currently used on a regular basis.

Because many factors such as time, multiple applications, the parameters used in the hyperbaric chamber as well as the medications taken by the patient affect the quality of the result, further studies are needed to make hyperbaric therapy more suitable and safer for each patient.


The series of articles discuss issues related to conducting high risk projects on the example of modernisation of hydrogen incinerators on a submarine. The article depicts a technical problem situation connected with catalytic hydrogen combustion on a submarine.


The best known daily rhythms in humans include: the sleep-wake rhythm, the circadian core body temperature variability, daily fluctuations in arterial blood pressure and heartbeat frequency, and daily changes in hormone secretion: e.g. melatonin, cortisol, growth hormone, prolactin. The core body temperature in humans has a characteristic sinusoidal course, with the maximum value occurring between 3:00-5:00 pm and the minimum between 3:00-5:00 am. Analysis of literature indicates that the obtained results concerning core body temperature are to a large extent influenced by the type of method applied in the measurement. Depending on test protocols, we may apply various methodologies to measuring core body temperature. One of the newest methods of measuring internal and external body temperature consists in the utilisation of remote temperature sensors transmitting the obtained value via a radio signal. The advantages of this method includes the ability to perform: continuous core temperature measurement, observe dynamic changes in core body temperature occurring in circadian rhythm and the repeatability and credibility of the obtained results, which is presented in numerous scientific reports.


Stress among naval mariners is caused by a new environment in the form of climate, noise, defective food, diseases or injuries, and others. Stress is aggravated by the lack of information, conflicts between mariners, changing decisions of superiors. The strongest stressor military action is the fear of losing life or health.

The stress leads to disturbances in the neuronal transmission and reduction in CNS cells, weakening the processes of neurogenesis. Its complications are a social problem for soldiers returning from humanitarian and military missions and their families.

Mariners cope with stress individually in the area of operations of the armed forces. When difficult situations overwhelm the possibility of compensating psyche, there are algorithms for psychological support. The basis for coping with stress is permanent, social support. The next level concerns support group sessions, involving soldiers after a traumatic event or completing a task. Sessions take place in a quiet place, after the cessation of activities. We are talking about defusing and debriefing technique. The highest level of coping with stress refers to psychotherapy. At first, in the field conditions, and then in the form of hospitalization in the country. Clinical forms of combat stress is post-traumatic stress disorder, acute stress syndrome, personality change as a result of the disaster experience, dissociative disorders, operational fatigue, DESNOS. The treatment of these disorders involves cognitive behavioral oriented trauma therapy and medical therapy with the use of SSRIs, SNRIs, and antipsychotics.

In the twenty-first century a inquiry into combat stress creates a tight prevention of its complications.