Fredrik Bajers Vej 5
Postboks 159 9100 Aalborg
Telefon: 9940 9940
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Xu Wang will defend his Ph.D. thesis: "Fluoroscopic investigation of cervical joint motion in healthy subjects"
01.10.2018 kl. 13.00 - 17.00
Pain in the neck region is one of the most common medical conditions. Neck pain is a potential cause of altered neck proprioception and altered motor control. The cervical spine is a multi-joint unit, and the cervical spine has been studied extensively to assess the range of motion and re-peated motions with associated repositioning ability for persons without and with neck problems. However, the repositioning ability and motion pattern of individual cervical joints have only been described minimally until now. Individual cervical joints’ upright posture repositioning ability (Study I), dynamic motion repeatability (Study II) and anti-directional motion (Study III) were exam-ined in healthy subjects who were asked to flex and extent the cervical spine from an upright pos-ture to an end-range position. Most cervical spine movements are initiated from the upright cervi-cal posture or postures closely related to this posture. Therefore, this posture is the baseline for the studies. The distribution of reposition errors showed larger errors in the upper cervical regions. The studies confirmed with some limitations the clinical and scientific assumption that cervical joint motion was repeatable. Individual cervical joint repositioning and movement are essential to understand normal variations of the healthy cervical spine biomechanics. In the present work, the repeatability of single joint flexion and extension movements, including fluctuation of anti-direc-tional joint motion (previously described as reverse motion in clinical studies, converse motion in biomechanical studies) were examined. To investigate the individual cervical joints’ repositioning ability, the subjects were asked to return to the upright cervical posture as precisely as they could after a cervical flexion or extension movement. A novel fluoroscopic video technology and Matlab based program analyzed the individual joint repositioning errors from C0/C1 to C6/C7. The reposi-tioning errors were presented as real errors and absolute errors in degrees. Individual joint motion during flexion and extension was calculated in degrees. For detailed joint motion pattern analysis, the flexion or extension movement was evenly divided into ten epochs with respect to the C0/C7 ROM from upright posture to end-range position. Repeated flexion and extension movements were performed to examine the joint motion repeatability with long (1 week) and short (20 s) time intervals. Anti- and pro-directional motions were measured to reflect the variations during re-peated joint flexion and extension. The cervical spine returns to the upright cervical posture after flexion and extension, as it counterbalances the multiple joint motions within the cervical spine. The cervical joints returned after flexion and extension movements with positive or negative joint repositioning errors. Despite the variations in the upright cervical posture after cervical flexion and extension movements, the variations through cervical flexion and extension movements were re-peated with an error of approximately 2.5 degrees. Cervical joints move repeatedly through flexion and extension with an average variation of 0.00º to 0.05º in real values, and an average variation of absolute values ranging from 2.02°to 2.33°. The movements include anti-directional motion, which contributes to the fluctuations of the flexion or extension of joint motions. The average anti-direc-tional motion of the healthy cervical spine was scattered throughout flexion or extension move-ments. Moreover, the upper cervical joints showed larger anti-directional motion compared to the lower cervical joints. The current thesis confirms that the anti-directional motion exists in free and unrestricted cervical flexion and extension movements with an approximately average of 40 %. The results quantify the variations of cervical joint motion during flexion and extension movements, which may help to understand interventions directed towards improved joint motions. The variation of repositioning differences after flexion and extension sug-gests that this variation should be considered, when head and neck repositioning errors are applied in rehabilitation and in science.
Fredrik Bajers Vej 7A4, room A4-106
10.10.2018 kl. 15.28 - 01.12.2018 kl. 15.28
This year’s conference bases its critical perspective on intercultural communication on the themes decolonization, cultural identities, and multiple belongings and capabilities for the 21st century.
23.10.2018 kl. 08.30 - 12.40
For all PhD students and Postdocs at AAU
24.10.2018 kl. 09.15 - 15.20
Produktion af biogas fra spildevandsslam, affald og gylle er en vigtig energikilde i Danmark og det bliver endnu vigtigere i fremtiden. Biogassen produceres af en masse forskellige mikroorganismer, og vor viden om disse er endnu begrænset. Et større projekt støttet af Innovationsfonden, ”NomiGas”, sætter fokus på, hvordan en øget viden om disse mikrobielle samfund kan øge driftsstabilitet og gasproduktion samt mindske driftsproblemerne
24.10.2018 kl. 10.00 - 26.10.2018 kl. 15.00
Den 24.-26. oktober 2018 har du mulighed for at komme i studiepraktik på en af AAU CPH's 9 bacheloruddannelser.
24.10.2018 kl. 13.00 - 15.30
AFHANDLINGENS TITEL & FORELÆSNINGENS TEMA Sygeplejersker som ”organisatorisk lim” i sundhedsvæsnet - Interorganisatoriske, professionelle og feminine perspektiver
25.10.2018 kl. 10.15 - 12.00
Open guest lecture by Rosalba Icaza. All students at AAU are welcome!
26.10.2018 kl. 10.15 - 12.00
Guest lecture by Prof. Pablo Calderón Martinez. All interested are welcome!
26.10.2018 kl. 13.00 - 16.00
26.10.2018 kl. 13.00 - 17.00
Laurids Østergaard Poulsen will defend his PhD thesis: "Diagnostic, Predictive and Therapeutic Aspects on Adenocarcinoma of the Rectum"
30.10.2018 kl. 14.00 - 15.00
For studerende på AAU i Aalborg
31.10.2018 kl. 10.15 - 12.00
Invitation to open guest lecture by Andrea Jeftanovic. All interested are welcome!
01.11.2018 kl. 13.00 - 14.00
02.11.2018 kl. 13.00 - 16.00
Klinisk Institut, Aalborg Universitet og Regionshospital Nordjylland har den glæde at invitere til ph.d.-forsvar ved læge Louise Arenholt, Gynækologisk og Obstetrisk Afdeling og Center for Klinisk Forskning, som forsvarer ph.d.-afhandlingen: Paravaginal Defects - Symptoms, Diagnosis, and Evaluation of Treatment
02.11.2018 kl. 13.30 - 16.00
To celebrate the inauguration of our new Professors and Adjunct Professor the Department of Chemistry and Bioscience is presenting a series of inaugural lectures on Friday 2 November, 2018. The program includes inspiring talks and an informal reception, where light refreshments will be served.
02.11.2018 kl. 14.00 - 17.00
Klinisk Institut, Aalborg Universitet og Aalborg Universitetshospital har den glæde at invitere til ph.d.-forsvar ved afdelingslæge Alaa El-Hussuna, Klinik for kirurgi og kræftbehandling, som forsvarer ph.d.-afhandlingen: Effects of Anti-Tumour Necrosis Factor-α Agents on Postoperative Outcome in Patients with Crohn’s Disease Undergoing Bowel Resection