## 4 Discussion  
The results of the presented research with the use of a set the clinical neurophysiology methods applied for diagnostic purposes of health status in high-maneuvering jet fighters are original and have not been fully described in the available literature so far. Except for this study, the results of motor transmission of impulses in peripheral nerves using electroneurography (ENG) and overall efferent transmission from the level of the motor center in the spinal cord to the muscles using motor potentials induced by a magnetic field (MEP) have not been presented in detail. Most reports describe pathological symptoms in pilots in the cervical spine diagnosed by subjective clinical methods of pain assessment [2, 4, 5, 6] or by means of questionnaires [9, 11], rarely with the use of electromyography or the range of movement and strength measurements in the examination of the neck and trunk muscles [7, 12], and casuistically with the reference of the muscles of the pelvic girdle and lower extremities [12]. Based on our research results, it can be assumed that high-maneuver fighter pilots develop moderate ailments in the lumbosacral rather than cervical spine, with symptoms corresponding to the consequences of disc-root conflicts of various etiopathogenesis diagnosed using clinical neurophysiology methods and described in other studies [14, 15, 16, 17, 18, 19]. It is likely that the effective methods of rehabilitation treatment of the consequences of cervical and back pain, as well as preventive methods limiting their development, should be the same ones that are applied in patients with symptoms of myofascal pain syndrome, disc-root conflict, and degenerative spine disease [1, 14, 15, 18, 22, 23, 24]. Early neurophysiological diagnosis of these syndromes in high-maneuver fighter pilots is all the more important because, in the early stages of the development of the ailment, there are no clear changes seen in the neuroimaging of the spinal structures [13]. Comparison of results from non-invasive neurophysiological tests may support monitoring and prognosis of the effectiveness of the treatment processes. Neurophysiological non-invasive diagnostic tests detecting the subclinical nature of abnormalities in the biomechanics of the spine may also be a reason to take action in the field of work ergonomics of a high-maneuvering fighter pilot [11]. Results of our study confirm observations of other researchers on the relation between the development of spine pain symptoms and the increasing number of flying hours and the overloading effect at 7G experienced by the high-maneuvering jet fighter pilot [3, 4, 6, 8]. One of the most interesting aspects resulting from the health assessment of pilots presented in the study was the high efficiency of the motor units of the assessed muscle groups, and the ability to conduct impulses in the peripheral and central nervous systems, exceeding in some tests the standards of healthy volunteers to whom the results were compared. The reasons for such a high functional efficacy of the muscle and nervous systems should be sought in the high criteria of the initial qualification of fighter pilots according to the military psychomotor requirements and the care of the study participants about their health through regular exercises in accordance with the data from the interview that was conducted with them. Our study has two main limitations. First of all, we have studied fifteen pilots only, who were not especially interested in the preliminary neuroimaging diagnostics and the neurophysiological testing in the absence of significant pain symptoms and changes in sensory perception or significant motor deficits. It should be also emphasized that participation in the study was anonymous and voluntary, participants during the recruitment process were randomly selected from a preliminary group of pilots and might abandon the project at any time.