Jose A. Parraca

Balance training reduces fear of falling and improves dynamic balance and isometric strength in institutionalised older people: a randomised trial

QUESTION What is the effect of a balance training protocol with the Biodex Balance System in institutionalised older people with fear of falling? DESIGN Randomised controlled trial with concealed allocation and assessor blinding. PARTICIPANTS Forty older people who lived in a nursing home and had fear of falling. INTERVENTION The experimental group completed a 12-week balance training protocol based on balancing/rebalancing training with the Biodex Balance System, with two sessions per week. During the training period, participants in both groups received the same multidisciplinary care (such as physiotherapy, occupational therapy and nursing) that they usually received in the nursing home. OUTCOME MEASURES The primary outcome was fear of falling (Falls Efficacy Scale International questionnaire). Secondary outcomes were dynamic balance (Fall Risk Test) and isometric strength (torque of knee flexor and extensor isometric strength measured with an isokinetic dynamometer). Outcome measures were taken before and after the training program protocol. RESULTS Compared to the control group, the exercise group had significantly greater improvements at 12 weeks in fear of falling (by 8 points, 95% CI 4 to 12), in dynamic balance (by 2 degrees, 95% CI 1 to 3), and in isometric strength of the knee flexors (by 7Nm, 95% CI 3 to 11) and knee extensors (by 7Nm, 95% CI 1 to 13). CONCLUSION The training program was feasible and effective in reducing fear of falling and improving dynamic balance and isometric strength in institutionalised older people with fear of falling. TRIAL REGISTRATION ISRCTN21695765.

Using whole-body vibration training in patients affected with common neurological diseases: a systematic literature review.

OBJECTIVES This systematic review critically evaluates the effects of whole body vibration (WBV) exercises on gait, balance, proprioception, strength, and health-related quality of life in patients with common neurological diseases. It specifically focuses on assessing the quality of reported studies and comparing quantitative results. DESIGN This is a systematic literature review. RESULTS A specific search strategy of 11 databases identified 13 published articles (5 studies of patients with Parkinson disease, 2 with cerebral palsy, 3 with multiple sclerosis, and 3 with stroke) that fulfilled the selection criteria. The quality of the articles was evaluated using a Physiotherapy Evidence Database scale and Dutch Institute for Healthcare Improvement guidelines. CONCLUSIONS There is moderate evidence that one session of WBV has positive effects on strength, whereas there is a weak level of evidence that WBV could improve proprioception and health-related quality of life measures in neurological patients. With respect to long-term effects of WBV, there is minor evidence from the studies with the best methodological quality that WBV improves strength, proprioception, gait, and balance. Further research on the intervention is strongly needed.

Tilt vibratory exercise and the dynamic balance in fibromyalgia: A randomized controlled trial.

To evaluate the feasibility and efficacy of tilt whole‐body vibration (WBV) for improving dynamic balance in women with fibromyalgia (FM).

Musculoskeletal fitness and health-related quality of life characteristics among sedentary office workers affected by sub-acute, non-specific low back pain: a cross-sectional study

OBJECTIVES To establish the level of musculoskeletal fitness and health-related quality of life (HRQoL) in sedentary office workers with sub-acute, non-specific low back pain, and compare the results with reference data for healthy sedentary office workers. DESIGN Cross-sectional study. SETTING Occupational secondary prevention setting. PARTICIPANTS One-hundred and ninety sedentary office workers: 118 suffering from sub-acute, non-specific low back pain (47 men and 71 women) and 72 age-matched healthy controls (30 men and 42 women). MAIN OUTCOME MEASURES Participants were assessed using a musculoskeletal fitness battery (sit-and-reach test, hand grip strength, lumbar and abdominal trunk muscle endurance, and back scratch test), the EuroQol-5D-3L, Oswestry Disability Questionnaire, and Roland Morris Disability Questionnaire. Data for both genders and conditions were compared. RESULTS Subjects with low back pain achieved lower scores in most of the fitness tests compared with healthy, age-matched controls. Trunk flexor and extensor endurance demonstrated the greatest difference in both men {flexion: median difference 59 [95% confidence interval (CI) 26 to 90]seconds; extension: median difference 24 [95% CI 20 to 68]} and women [flexion: median difference 59 (95% CI 5 to 85.50)seconds; extension: median difference 41 (95% CI 30 to 55)seconds]. Differences in HRQoL were also demonstrated between groups for both men and women, with the exception of the pain/discomfort dimension in women. CONCLUSIONS Sedentary office workers with sub-acute, non-specific low back pain had lower musculoskeletal fitness than healthy, age-matched controls, with the main difference found in endurance of the trunk muscles. HRQoL was also lower in workers with low back pain.

Clinical effects of a nine-month web-based intervention in subacute non-specific low back pain patients: a randomized controlled trial

Objective: To test the clinical effect of a web-based lower back pain intervention on quality of life and selected lower back pain outcomes. Design: A prospective single-blinded randomized intervention. Setting: Occupational preventive service. Subjects: One hundred office workers with non-specific subacute lower back pain. Intervention: The 50 intervention group subjects were educated daily about sitting correctly and asked to perform exercises shown by video demonstrations on the university website. The exercise routines included strengthening, mobility and stretching exercises focused on the postural stability muscles. The 50 control group subjects only received standard occupational care. Measures: Outcomes were measured by the EuroQol questionnaire five dimensions three levels, the Oswestry Disability Index, and the StarT Back Screening Tool questionnaires. At nine months, the intervention group outcomes were compared to the baseline data and the control group outcomes. Results: For 97% (n = 45) of the experimental group quality of life (clinical utility) improved significantly; 3.58 times greater than the control group. Oswestry Disability Index showed an odds ratio (OR) of 5.42 with a 37% (n = 17) change for the intervention group with respect to the control group. With regard to the StarT Back Screening Tool, 76% (n = 35) of the intervention group improved their clinical state (odds ratio = 3.04 with respect to the control group improvement). Logistic regression analysis revealed positive changes in EuroQol questionnaire, increasing the likelihood of observing positive changes in StarT Back Screening Tool (OR = 15.5) and Oswestry Disability Index (OR = 4.5). Conclusions: The intervention showed clinical improvements in quality of life and selected lower back pain outcomes in the experimental group compared to the control group.

Tilting Whole Body Vibration improves quality of life in women with fibromyalgia: a randomized controlled trial.

OBJECTIVES The aim of this study was to analyze the effect of 12-week tilting Whole Body Vibration therapy (WBV) on Health Related Quality of Life (HRQoL) in fibromylagia (FM) within the context of a randomized control trial (ISRCTN16950947). SUBJECTS AND METHODS Thirty-six (36) women with FM were randomly allocated to either an exercise or a control group. The women in the exercise group were assigned to a 12-week course of tilting WBV (12.5-Hz frequency; 3-mm amplitude). HRQoL was assessed using the Fibromyalgia Impact Questionnaire (FIQ) and a 15D questionnaire. RESULTS A 12-week course of tilting WBV therapy was associated with improvements in FIQ scores (12%) but not in the 15D questionnaire. CONCLUSIONS Tilting WBV was a feasible intervention that prevented the loss of HRQoL in previously physically untrained women with FM.

Test-Retest Reliability of Isometric and Isokinetic Knee Extension and Flexion in Patients With Fibromyalgia: Evaluation of the Smallest Real Difference

OBJECTIVE To investigate the reliability of isokinetic peak torque and work and isometric peak torque measurements for knee flexion and extension in fibromyalgia (FM) patients by determining the smallest real difference (SRD). DESIGN Test-retest reliability study. SETTING University laboratory. PARTICIPANTS Women with FM (N=37) aged between 34 and 74 years. INTERVENTIONS Not applicable. MAIN OUTCOME MEASURES The participants performed isometric, concentric, and eccentric tests of the knee. Unilateral maximal peak torque and average work were measured for each direction (flexion, extension) and contraction (isometric, concentric, eccentric) type. Relative reliability, absolute reliability, and SRD were calculated. The 3 tests were repeated after an interval of 7 days. RESULTS With the exception of eccentric flexion, all peak torque measures had an intraclass correlation coefficient (ICC) of > 0.90, and all work measures had an ICC of > 0.85. The SRD ranged between 21% and 37% for all peak torque measures and between 40% and 73% for all work measures. CONCLUSIONS Isokinetic dynamometry provides reliable measurement of peak torque and work for isometric, concentric, and eccentric knee flexion and extension in patients with FM. The present study has generated novel SRD data, which will assist physicians, therapists, and clinicians in interpreting posttreatment changes in patients with FM.

Effects of Whole-Body Vibration Therapy in Patients with Fibromyalgia: A Systematic Literature Review

Objective. To review the literature on the effects of whole-body vibration therapy in patients with fibromyalgia. Design. Systematic literature review. Patients. Patients with fibromyalgia. Methods. An electronic search of the literature in four medical databases was performed to identify studies on whole-body vibration therapy that were published up to the 15th of January 2015. Results. Eight articles satisfied the inclusion and exclusion criteria and were analysed. According to the Dutch CBO guidelines, all selected trials had a B level of evidence. The main outcomes that were measured were balance, fatigue, disability index, health-related quality of life, and pain. Whole-body vibration appeared to improve the outcomes, especially balance and disability index. Conclusion. Whole-body vibration could be an adequate treatment for fibromyalgia as a main therapy or added to a physical exercise programme as it could improve balance, disability index, health-related quality of life, fatigue, and pain. However, this conclusion must be treated with caution because the paucity of trials and the marked differences between existing trials in terms of protocol, intervention, and measurement tools hampered the comparison of the trials.

A Web-Based Intervention to Improve and Prevent Low Back Pain Among Office Workers: A Randomized Controlled Trial

STUDY DESIGN Randomized controlled trial. OBJECTIVES To test the feasibility, safety, and efficacy of a web-based multidisciplinary intervention for office workers with subacute, nonspecific low back pain. BACKGROUND Low back pain is one of the most frequent ailments seen in primary care consultations. METHODS The trial included 100 office workers with subacute low back pain. The intervention group had access to both the study intervention and standard care. The control group had access to standard care only. Standard care was defined as all existing non-web-based interventions offered by the University of Extremaduras Preventive Medicine Service. The web-based program was offered via the Preventive Medicine Service website. The participants in the intervention group were asked to engage in the web-based program at their work site for 11 minutes each day, 5 days a week. Primary outcomes were functional disability, as measured by the Roland-Morris Disability Questionnaire, and health-related quality of life, as measured by the European Quality of Life-5 Dimensions-3 Levels. Secondary outcomes were the number of episodes of low back pain and trunk muscle endurance. Outcomes were measured before and after the 9-month intervention period. RESULTS Over the 9-month study, the score on the Roland-Morris Disability Questionnaire for the participants in the web-based intervention group improved by a mean of -7.36 points (95% confidence interval [CI]: -8.41, -6.31) compared to a worsening of 1.89 points (95% CI: 0.71, 2.65) in the control group. The between-group difference in change on the Roland-Morris Disability Questionnaire over the study period was -9.25 points (95% CI: -10.57, -7.89). Similarly, over the 9-month study, the intervention group had a significant improvement in quality of life of 0.24 points (95% CI: 0.20, 0.29) compared to the control group. CONCLUSION A 9-month web-based intervention is feasible and effective to improve function and health-related quality of life and to decrease episodes of low back pain among office workers with a history of subacute, nonspecific low back pain.

Reliability and validity of lumbar and abdominal trunk muscle endurance tests in office workers with nonspecific subacute low back pain

BACKGROUND AND OBJECTIVE Despite the widespread use of trunk endurance tests, the reliability and validity of these tests in office workers with subacute nonspecific low back pain are unknown. MATERIALS AND METHODS This cross-sectional study involved 190 subjects: 30 men and 42 women without low back pain and 47 men and 71 women with low back pain. All subjects underwent timed prone and supine isometric lumbar and abdominal trunk endurance tests that were performed until subjective fatigue occurred. All subjects also completed the Roland Morris and Oswestry self-reported disability questionnaires. A test-retest study (7 days) was conducted with 31 participants with low back pain from the study. RESULTS For the abdominal trunk endurance test, males and females with low back pain had mean (SD) values of 62.06 (36.87) and 46.06 (29.28) seconds, respectively, both significantly lower than the asymptomatic workers. For the lumbar test, males and females with low back pain had mean (SD) values of 79.57 (30.66) and 75.49 (28.97) seconds, respectively, again, both significantly lower than the asymptomatic workers. The intraclass correlation coefficients of both tests exceeded 0.90 and the Kappa indices were excellent for both men and women. Receiver-operating curve analyses revealed areas under the curve very close to or exceeding 0.70 for both men and women for both tests. CONCLUSIONS The lumbar and abdominal trunk muscle endurance tests appeared to be reliable and valid measures in office workers with subacute low back pain.