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PubMed2002

[Sagittal alignment of the spine: comparison between soccer players and subjects without sports activities].

PURPOSE OF THE STUDY: The purpose of this study was to compare the sagittal alignment of the spine in a population of soccer players and a population of volunteers with no sports activities in order to assess the effect of sports activities on stress fractures of the isthmic region. MATERIAL AND METHODS: The group of athletes included 31 soccer players and the volunteer group 47 subjects with no sports activities selected from a 131 subjects database. The two groups were matched for sex and age. All athletes were licensed members of a soccer club and participated in regular sports activities at a moderate level (at least 4 hours per week for at least 2 years). Plain radiographs of the entire spine (lateral view) in the same reference position were obtained for all subjects. The following parameters were recorded: thoracic kyphosis, lumbar lordosis, sacral tilt, anteversion of the pelvis, sagittal alignment. The following morphology data were also recorded in this exclusively male population: weight, height, arm spread. RESULTS: Considering the other radiographic parameters, the sagittal alignment of the spine was comparable between the two groups. However, the statistical analysis demonstrated that the distribution of the spinal and pelvic parameters was different between the athletic and the non-athletic subjects. In athletes, spinal alignment was achieved by a less pronounced thoracic kyphosis and a more pronounced angle, sacral tilt and lumbar lordosis. DISCUSSION AND CONCLUSION: The particular spinal morphology observed in soccer players is comparable with that described in the literature for patients with or treated for spondylolisthesis with isthmic lysis.

Adult↗
PubMed2002

[Generators of walking movements in humans: spinal mechanisms of their activation].

The paper is focused on spinal generation of walking movements in patients afflicted with loss of supraspinal control consequent to back trauma. The author cites literature on methods of initiation of walking movements with pharmacological and proprioceptive stimulation. On his own experimental investigations with epidural electrical stimulation of the spinal marrow dorsal surface he proves existence of walking generators in the human. There is evidence that the walking pattern in extensors is formed through amplitude modulation of monosynaptic reflexes, whereas in flexors it is established through switching of the reflex paths from the monosynaptic reflex to the polysynaptic neuron network. Investigations of the functional deafferentation of lower extremities showed that walking movements as a result of epidural stimulation are intraspinal by origin and adjusted by way of peripheral feedback. A hypothetical sequence of activation of walking generators through the propriospinal system of dorsolateral and ventrilateral funiculi has been put forward.

Animals↗
PubMed2002

Back to backs.

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Adult↗
PubMed2002

My journey of pain.

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Accidents, Occupational↗
PubMed2002

Musculoskeletal disabilities among police force personnel of the Islamic Republic of Iran.

Musculoskeletal disorders are among the most common causes of disability in the military population. The objectives of this study were to assess the frequency of musculoskeletal disabilities in police force personnel and to determine the association between disabilities and age, rank, and different job types. The population studied were 2600 Islamic Republic of Iran police force disability cases from March 1997 to March 1998. Ninth revision of International Classification of Diseases was used to indicate diagnoses. The frequency of disabilities related to musculoskeletal disorders was 25.7%. Back disabilities were the most common musculoskeletal problems. Patients with back disabilities were older on average than patients with other musculoskeletal disorders (p < 0.001). Back disabilities were more common in commissioned officers (third lieutenant to colonel) than other police force personnel (p < 0.0001). On the contrary, fractures and dislocations were more common in noncommissioned officers (sergeant to warrant officer) (p < 0.001). There were associations between specific jobs and musculoskeletal disabilities. According to present data, musculoskeletal disorders account for one-quarter of disability cases in police force personnel. Prevention programs, especially in high-risk groups, should be considered.

Adult↗