AKTUELLE PUBLIKATIONEN UNSERER MITGLIEDER UND FREUNDE
Kringler W, Brand B & Eidenmüller AM. 2016. Concussion in team sports: neurosychological aspects. Sports Orthop. Traumatol 32. 364-367 (2016)
Neben den typischen orthopädischen Verletzungsrisiken im Sport sind insbesondere bei körperbetonten Mannschaftssportarten auch Kopfverletzungen häufig. Diese bedürfen einer sorgfältigen Untersuchung und einer professionellen Behandlung. Die Formalisierung der Sport-Neuropsychologie im deutschsprachigen Raum macht gute Fortschritte. Unter Federführung der VBG in Kooperation mit Universitäten und ambulanten Praxen wird an der Optimierung der praxisnahen Diagnostik und Behandlung von Schädel-Hirn-Traumen im Profisport gearbeitet. Zusammen mit dem jeweiligen Mannschaftsarzt gilt es, nach dem etablierten Return-to-Play-Protokoll den Spieler nach einer Concussion bestmöglich zu behandeln. Erfahrene Sport-Neuropsychologen und Sportmediziner können dieses leisten.
Helmich I, Berger A & Lausberg H. 2016. Neural Control of Posture in Individuals with Persisting Postconcussion Symptoms. Med Sci Sports Exerc. 2016 Jul 6
Postural instability has been shown to characterize individuals who suffered from long-term symptoms after mild traumatic brain injury. However, recordings of neural processes during postural control are difficult to realize with standard neuroimaging techniques. Thus, we used functional nearinfrared spectroscopy to investigate brain oxygenation of individuals with persistent postconcussion symptoms (pPCS) during postural control in altered environments.
We compared brain oxygenation and postural sway during balance control in three groups: individuals suffering from pPCS, individuals with a history of mild traumatic brain injury but without pPCS, and healthy controls. Individuals were investigated during postural control tasks with six different conditions: i) eyes opened, ii) eyes closed, and iii) blurred visual input, each while standing a) on a stable and b) an unstable surface.
In all groups, during the eyes closed/unstable surface condition as compared with the other conditions, the postural sway increased as well as the brain oxygenation in frontal brain cortices. In the most difficult balance condition, as compared with the other two groups, subjects with pPCS applied more force over time to keep balance as measured by the force plate system with a significantly greater activation in frontopolar/orbitofrontal areas of the right hemisphere.
As subjects with pPCS applied more force over time to control balance, we propose that with regard to cognitive processes, the increase of cerebral activation in these individuals indicates an increase of attention-demanding processes during postural control in altered environments.
Helmich I, Saluja RS, Lausberg H, Kempe M, Furley P, Berger A, Chen JK & Ptito A. 2015. Persistent Postconcussive Symptoms Are Accompanied by Decreased Functional Brain Oxygenation. J Neuropsychiatry Clin Neurosci. 2015 Fall;27(4):287-98
Diagnostic methods are considered a major concern in the determination of mild traumatic brain injury. The authors examined brain oxygenation patterns in subjects with severe and minor persistent postconcussive difficulties and a healthy control group during working memory tasks in prefrontal brain regions using functional near-infrared spectroscopy. The results demonstrated decreased working memory performances among concussed subjects with severe postconcussive symptoms that were accompanied by decreased brain oxygenation patterns. An association appears to exist between decreased brain oxygenation, poor performance of working memory tasks, and increased symptom severity scores in subjects suffering from persistent postconcussive symptoms.