Ann-Sofi Kammerlind

Effects of balance training in elderly people with nonperipheral vertigo and unsteadiness

Objective: To evaluate the effect of balance training in group in elderly people with nonperipheral vertigo and unsteadiness. Design: Randomized controlled study. Setting: Ear, nose and throat department, University Hospital, Sweden. Subjects: Twenty-three elderly subjects with nonperipheral vertigo and/or unsteadiness randomized into training group and control group. Intervention: The training group attended balance training in group twice a week for eight weeks. Main outcome measures: Timed static balance tests, walking tests and six sensory organization tests on EquiTest dynamic posturography were performed before and after the training period. Besides, the patients estimated their vertigo and unsteadiness on a visual analogue scale (VAS) before and after the training period. Results: The training group improved significantly in standing on one leg with eyes open, walking forward on a line, walking speed, in three out of six tests on dynamic posturography and estimated less vertigo and unsteadiness measured with VAS. No changes were seen in the control group. Conclusion: Balance training in elderly people with nonperipheral vertigo and unsteadiness seems to improve both objective and perceived balance.

Reliability of clinical balance tests and subjective ratings in dizziness and disequilibrium

The aim was to assess (i) the test–retest and inter-rater reliability of, and (ii) the relationships between, commonly used clinical balance tests and subjective ratings in subjects with dizziness and disequilibrium. Fifty subjects (26 men and 24 women, mean age 63 years) with dizziness and disequilibrium following acute unilateral vestibular loss or central neurological dysfunction were tested with static and dynamic clinical balance tests, visual analogue scales (VAS), University of California Los Angeles Dizziness Questionnaire (UCLA-DQ), Dizziness Beliefs Scale (DBS), European Quality of Life questionnaire (EQ-5D), Dizziness Handicap Inventory (DHI), and Hospital Anxiety and Depression Scale (HADS). Most tests showed good test–retest and inter-rater reliability. Few correlations were seen between objective and subjective tests, but several correlations were found between the different subjective instruments. Sharpened Rombergs test eyes closed, standing on foam eyes closed, standing on one leg eyes open and walking in a figure-of-eight are recommended as reliable and appropriate clinical balance tests in subjects with dizziness and disequilibrium. Subjects with central lesions may have difficulties when rating their symptoms on VAS. Total scores rather than scores for separate items are recommended for UCLA-DQ and DHI.

Effects of home training and additional physical therapy on recovery after acute unilateral vestibular loss- a randomized study

Objective: To evaluate the effects of additional physical therapy on recovery after acute unilateral vestibular loss given to patients receiving home training. Design: Randomized controlled trial. Setting: Ear, nose and throat departments in three hospitals. Subjects: Fifty-four patients (mean age 52 years) with acute unilateral vestibular loss within the last week confirmed with electronystagmography testing were included. Patients with central neurologic or auditory symptoms or other vertigo disease were excluded. Interventions: Home training with or without additional physical therapy 12 times during 10 weeks. Main measures: Electronystagmography testing was performed before and after the training period. Clinical static (Romberg?s test, sharpened Romberg?s test, standing on foam and standing on one leg) and dynamic (walking forward and backward on a line) balance tests and subjective ratings of vertigo and balance problems on a visual analogue scale were done one week, 10 weeks and six months after the start of training. Results: Similar changes were seen in the two training groups. Conclusions: No significant differences in outcome regarding balance function or perceived symptoms were found between home training with or without additional physical therapy.

Long-term follow-up after acute unilateral vestibular loss and comparison between subjects with and without remaining symptoms

Conclusions. About half of the subjects in this study reported remaining symptoms 3–6 years after acute unilateral vestibular loss. Differences could be seen between subjects with and without remaining symptoms regarding health-related quality of life, anxiety and depression. Objective. To evaluate the presence of self-rated remaining symptoms 3–6 years after acute unilateral vestibular loss, and to compare subjects with and without such symptoms. Material and methods. Firstly, 51 subjects answered a questionnaire which included the EuroQol EQ-5D, the Hospital Anxiety and Depression Scale, the University of California Los Angeles Dizziness Questionnaire, visual analogue scales and the Dizziness Handicap Inventory. Secondly, nine subjects with and nine without remaining symptoms participated in an extended testing procedure, including electronystagmography (ENG), determination of vestibular-evoked myogenic potentials (VEMPs) and clinical balance tests. Results. In the first part of the study, 27 subjects reported remaining symptoms, 3 reported 1 additional period of symptoms and 21 had not experienced any symptoms at all in the 3–6 years since acute unilateral vestibular loss. In the second part, the group with remaining symptoms rated a lower health-related quality of life and a higher level of anxiety and depression. There were no differences between the two groups in terms of ENG tests, VEMPs or clinical balance tests.

Influence of asymmetry of vestibular caloric response and age on balance and perceived symptoms after acute unilateral vestibular loss

Objective: To evaluate the influence of asymmetry of vestibular caloric response and age on balance and perceived symptoms after acute unilateral vestibular loss. Design: Prospective study. Setting: Ear, nose and throat departments in three hospitals. Subjects: Fifty-four patients (mean age 52 years) with acute unilateral vestibular loss participating in a randomized controlled training study were included. Main measures: Electronystagmography testing was performed within one week after onset of symptoms and after 10 weeks. The outcome measures clinical static balance tests (sharpened Rombergs test with eyes closed, standing on foam with eyes closed, and standing on one leg with eyes open and closed) and subjective symptom ratings on a visual analogue scale were done after one week, 10 weeks and six months. The correlation between age and asymmetry of vestibular caloric response, respectively, and the outcome measures were analysed. Results: Greater caloric asymmetry correlated with poorer performance at the sharpened Rombergs test and standing on one leg with eyes closed at all three follow-ups (rho=-0.31 to -0.54), and with higher symptom ratings at the 10-week and six-month follow-ups (rho=0.30-0.60). Higher age was associated with poorer performance on the sharpened Rombergs test and standing on one leg at all three follow-ups (rho=0.31-0.64), but did not change over time. Higher age was also associated with higher ratings of vertigo at the six-month follow-up, and less reduction of vertigo between the 10-week and six-month follow-ups (rho=0.29-0.48). Conclusions: A higher degree of asymmetry of vestibular caloric response and high age seem to be associated with poor outcome in balance and perceived symptoms after acute unilateral vestibular loss.

Test–retest reliability of the Swedish version of the Life-Space Assessment Questionnaire among community-dwelling older adults:

Objective: To examine the test–retest reliability of the Swedish version of the Life-Space Assessment Questionnaire. Design: Test–retest reliability study. Subjects: A total of 298 community-dwelling subjects between 75 and 90 years of age. Methods: The Life-Space Assessment Questionnaire was translated into Swedish. By personal interviews during home visits and two weeks later by telephone interviews the subjects were asked about their life-space mobility during the past four weeks, and how often and whether they were independent or needed assistance from another person or equipment to reach different life-space levels. Results: None of the four scoring methods showed significant difference between test sessions. The mean (SD) total scores were 65 (22) and 65 (23) out of the maximum possible score of 120 at the two sessions. High levels were found for independent, assisted, and maximal life-space at both sessions. Intraclass correlation coefficients and weighted Kappa-values between 0.84–0.94 were found for the total score, the independent, and the assisted life-space levels, indicating good to excellent reliability. A lower Kappa-value was observed for the maximal life-space level, mainly owing to skewed distributions. The method error values showed that a change of 10 in the total score and a change of one level in any of the three life-space levels can be considered to indicate a real change in clinical practice. Conclusion: The Swedish version of the Life-Space Assessment Questionnaire can be reliably used among community-dwelling older adults.

Recovery after acute unilateral vestibular loss and predictors for remaining symptoms

PURPOSE The aims of this study were to follow recovery during the first 6 months after acute unilateral vestibular loss (AUVL) and to determine predictors for self-rated remaining symptoms. MATERIALS AND METHODS Forty-two subjects were included less than 10 days after AUVL. Static and dynamic clinical balance tests, visual analogue scales, University of California Los Angeles Dizziness Questionnaire, Dizziness Beliefs Scale, European Quality of Life questionnaire, Dizziness Handicap Inventory, and Hospital Anxiety and Depression Scale were performed at inclusion and at 7 follow-ups over 6 months. Subjects rated their symptoms on visual analogue scales daily at home. Videonystagmography was performed in the acute stage and after 10 weeks. RESULTS Decrease of symptoms and improvement of balance function were larger during the first compared with the latter part of the follow-up period. Visual analogue scale ratings for balance problems were higher than those for dizziness. A prediction model was created based on the results of 4 tests in the acute stage: standing on foam with eyes closed, standing on 1 leg with eyes open, visual analogue scale rating of vertigo at rest, and European Quality of Life questionnaire rating of health-related quality of life. The prediction model identified subjects at risk of having remaining symptoms after 6 months with a sensitivity of 86% and a specificity of 79%. CONCLUSIONS Recovery mainly takes place during the first weeks after AUVL. Subjects rate more balance problems than dizziness. Self-rated remaining symptoms after 6 months may be predicted by clinical balance tests and subjective ratings in the acute stage.

Balance, dizziness and proprioception in patients with chronic whiplash associated disorders complaining of dizziness: A prospective randomized study comparing three exercise programs

BACKGROUND Dizziness and unsteadiness are common symptoms following a whiplash injury. OBJECTIVE To compare the effect of 3 exercise programs on balance, dizziness, proprioception and pain in patients with chronic whiplash complaining of dizziness. DESIGN A sub-analysis of a randomized study. METHODS One hundred and forty subjects were randomized to either a physiotherapist-guided neck-specific exercise (NSE), physiotherapist-guided neck-specific exercise, with a behavioural approach (NSEB) or prescription of general physical activity (PPA) group. Pre intervention, 3, 6 and 12 months post baseline they completed the University of California Los Angeles Dizziness Questionnaire (UCLA-DQ), Visual Analogue Scales (VAS) for, dizziness at rest and during activity and physical measures (static and dynamic clinical balance tests and head repositioning accuracy (HRA)). RESULTS There were significant time by group differences with respect to dizziness during activity and UCLA-Q favouring the physiotherapy led neck specific exercise group with a behavioural approach. Within group analysis of changes over time also revealed significant changes in most variables apart from static balance. CONCLUSION Between and within group comparisons suggest that physiotherapist led neck exercise groups including a behavioural approach had advantages in improving measures of dizziness compared with the general physical activity group, although many still complained of dizziness and balance impairment. Future studies should consider exercises specifically designed to address balance, dizziness and cervical proprioception in those with persistent whiplash.

Concurrent validity of the Swedish version of the life-space assessment questionnaire

BackgroundThe Life-Space Assessment (LSA), developed in the USA, is an instrument focusing on mobility with respect to reaching different areas defined as life-spaces, extending from the room where the person sleeps to mobility outside one’s hometown. A newly translated Swedish version of the LSA (LSA-S) has been tested for test-retest reliability, but the validity remains to be tested. The purpose of the present study was to examine the concurrent validity of the LSA-S, by comparing and correlating the LSA scores to other measures of mobility.MethodThe LSA was included in a population-based study of health, functioning and mobility among older persons in Sweden, and the present analysis comprised 312 community-dwelling participants. To test the concurrent validity, the LSA scores were compared to a number of other mobility-related variables, including the Short Physical Performance Battery (SPPB) as well as “stair climbing”, “transfers”, “transportation”, “food shopping”, “travel for pleasure” and “community activities”. The LSA total mean scores for different levels of the other mobility-related variables, and measures of correlation were calculated.ResultsHigher LSA total mean scores were observed with higher levels of all the other mobility related variables. Most of the correlations between the LSA and the other mobility variables were large (r = 0.5–1.0) and significant at the 0.01 level. The LSA total score, as well as independent life-space and assistive life-space correlated with transportation (0.63, 0.66, 0.64) and food shopping (0.55, 0.58, 0.55). Assistive life-space also correlated with SPPB (0.47). With respect to maximal life-space, the correlations with the mobility-related variables were generally lower (below 0.5), probably since this aspect of life-space mobility is highly influenced by social support and is not so dependent on the individual’s own physical function.ConclusionLSA was shown to be a valid measure of mobility when using the LSA total, independent LS or assistive LSA.

Outcome of physiotherapy after surgery for cervical disc disease: a prospective randomised multi-centre trial

BackgroundMany patients with cervical disc disease require leave from work, due to long-lasting, complex symptoms, including chronic pain and reduced levels of physical and psychological function. Surgery on a few segmental levels might be expected to resolve disc-specific pain and reduce neurological deficits, but not the non-specific neck pain and the frequent illness. No study has investigated whether post-surgery physiotherapy might improve the outcome of surgery. The main purpose of this study was to evaluate whether a well-structured rehabilitation programme might add benefit to the customary post-surgical treatment for cervical disc disease, with respect to function, disability, work capability, and cost effectiveness.Methods/DesignThis study was designed as a prospective, randomised, controlled, multi-centre study. An independent, blinded investigator will compare two alternatives of rehabilitation. We will include 200 patients of working age, with cervical disc disease confirmed by clinical findings and symptoms of cervical nerve root compression. After providing informed consent, study participants will be randomised to one of two alternative physiotherapy regimes; (A) customary treatment (information and advice on a specialist clinic); or (B) customary treatment plus active physiotherapy. Physiotherapy will follow a standardised, structured programme of neck-specific exercises combined with a behavioural approach. All patients will be evaluated both clinically and subjectively (with questionnaires) before surgery and at 6 weeks, 3 months, 6 months, 12 months, and 24 months after surgery. The main outcome variable will be neck-specific disability. Cost-effectiveness will also be calculated.DiscussionWe anticipate that the results of this study will provide evidence to support physiotherapeutic rehabilitation applied after surgery for cervical radiculopathy due to cervical disc disease.Trial registrationClinicalTrials.gov identifier: NCT01547611