Postacute/Long COVID in Pediatrics: Development of a Multidisciplinary Rehabilitation Clinic and Preliminary Case Series.

ABSTRACT: The long-term sequelae after SARS-CoV-2 infections in children is unknown. Guidance is needed on helpful models of care for an emerging subset of pediatric patients with postacute/long COVID who continue to experience persistent symptoms after initial COVID-19 diagnosis. Here, we describe a pediatric multidisciplinary post-COVID-19 rehabilitation clinic model as well as a case series of the initial cohort of patients who presented to this clinic. A consecutive sample of nine patients (pediatric patients <21 yrs of age) who presented to our clinic are included. The most common presenting symptoms were fatigue (8 of 9 patients), headaches (6 of 9), difficulty with schoolwork (6 of 8), "brain fog" (4 of 9), and dizziness/lightheadedness (4 of 9). Most patients had decreased scores on self-reported quality-of-life measures compared with healthy controls. In the patients who participated in neuropsychological testing, a subset demonstrated difficulties with sustained auditory attention and divided attention; however, most of these patients had preexisting attention and/or mood concerns. There were also some who self-reported elevated depression and anxiety symptoms. Pediatric patients with postacute/long COVID may present with a variety of physical, cognitive, and mood symptoms. We present a model of care to address these symptoms through a multidisciplinary rehabilitation approach.

Telerehabilitation for Headache Management.

Headache is one of the most disabling conditions in the world. Despite plentiful evidence supporting rehabilitation strategies, headache is significantly underassessed and undertreated. Obstacles to headache care include lack of available expertise in headache management, few available resources for effective assessment and treatment, and cost and disability that preclude treatment seeking in patients with headache. Telerehabilitation can allow providers to access expert consultation and gives patients easier access to assessment and treatment. This article covers existing telerehabilitation options for headache management and explores the strength of evidence supporting these approaches. Risks of telerehabilitation and recommendations for future development are discussed.

Effectiveness of a "Spring Pillow" Versus Education in Chronic Nonspecific Neck Pain: A Randomized Controlled Trial.

BACKGROUND: Different types of pillows have been proposed for neck pain, but no previous randomized controlled trial has investigated the effectiveness of a "spring pillow" for adults with chronic nonspecific neck pain. OBJECTIVE: We evaluated the effectiveness of using a pillow made from viscoelastic polyurethane and 60 independent springs compared with an educational intervention in individuals with chronic nonspecific neck pain. DESIGN: This was a randomized controlled trial with crossover study design. SETTING: The setting was the Occupational Medicine Unit, University Hospital, Bologna (Italy). PARTICIPANTS: We recruited 70 adults with chronic nonspecific neck pain, of whom 64 completed the trial. INTERVENTION: Participants were randomly assigned to 2 groups. One group used the spring pillow for 4 weeks, and the other group followed educational advice for 4 weeks while continuing to use their own pillows. After 4 weeks of treatment and 4 weeks of washout, groups were crossed over. Pain perceived in the neck, thoracic, and shoulder areas and headache were the primary outcome measures. In addition, disability, sleep quality, subjective improvement, and pillow comfort were assessed. Measures were captured at pretreatment, after 4 weeks, after the 4-week washout period, and 4 weeks after crossover. The mean differences (MD) in outcomes between groups were assessed. RESULTS: Treatment with the spring pillow appeared to reduce neck pain (MD = -8.7; 95% confidence interval [CI] = -14.7 to -2.6), thoracic pain (MD = -8.4; 95% CI = -15.2 to -1.5), and headache (MD = -16.0; 95% CI = -23.2 to -8.7). Reductions in shoulder pain were not statistically significant between groups (MD = -6.9; 95% CI = -14.1-0.3). Neither the crossover sequence nor the period (first vs second intervention administration) significantly affected the results. LIMITATIONS: Education may not have been the best comparator for the spring pillow; drug consumption, actual pillow use, and the implementation of the educational suggestions as prescribed were not controlled. CONCLUSIONS: Use of the spring pillow in this study was more effective than an educational intervention for improving cervical, thoracic, and head pain. Whether a spring pillow is more effective than other ergonomic pillows remains to be tested.

[Portfolio of services and basic table of quality indicators for Headache Units: a consensus study]. / Cartera de servicios y cuadro basico de indicadores de calidad para las unidades de cefalea: estudio de consenso.

AIM: To develop a proposal for a portfolio of services and a set of indicators for Headache Units. DEVELOPMENT: Qualitative study that applied techniques of consensus with the participation of 15 professionals who are experts in the treatment of headaches (experience of 15 years) and in quality assurance. The description of the indicators included: statement, definition, standard, type of indicator, dimension, source, level of evidence, and clarification of terms. The proposal for a portfolio of services included the following areas: clinical management, patient-centered care, community involvement, knowledge management, translational research, and social dissemination. The proposal converged in 13 indicators exploring five dimensions. CONCLUSIONS: This proposal contributes to ensure and assess the level of quality of a Headache Unit or outpatient clinic.

TITLE: Cartera de servicios y cuadro basico de indicadores de calidad para las unidades de cefalea: estudio de consenso.Objetivo. Elaborar una propuesta de cartera de servicios para una unidad de cefalea y un conjunto basico de indicadores de calidad asistencial en cefalea. Desarrollo. Estudio que aplico tecnicas de busqueda de consenso con participacion de un total de 15 profesionales expertos en tratamiento de cefaleas (experiencia de mas de 15 años) y en gestion de calidad. La descripcion de los indicadores incluyo: enunciado, definicion, estandar, tipo de indicador, dimension, fuente, nivel de evidencia y aclaraciones de terminos. La propuesta de cartera de servicios incluyo los siguientes ambitos: gestion clinica, atencion centrada en el paciente, implicacion comunitaria, gestion del conocimiento, investigacion traslacional y difusion social. La propuesta se concreto en 13 indicadores que abarcaban cinco dimensiones. Conclusiones. Esta propuesta contribuye a asegurar y evaluar el nivel de calidad de una unidad de cefaleas o de las consultas monograficas de cefaleas.

Effectiveness of mobilisation of the upper cervical region and craniocervical flexor training on orofacial pain, mandibular function and headache in women with TMD. A randomised, controlled trial.

BACKGROUND: Studies exploring interventions targeting the cervical spine to improve symptoms in patients with temporomandibular disorders (TMD) are limited. OBJECTIVES: To determine whether mobilisation of the upper cervical region and craniocervical flexor training decreased orofacial pain, increased mandibular function and pressure pain thresholds (PPTs) of the masticatory muscles and decreased headache impact in women with TMD when compared to no intervention. METHODS: In a single-blind randomised controlled trial, 61 women with TMD were randomised into an intervention group (IG) and a control group (CG). The IG received upper cervical mobilisations and neck motor control and stabilisation exercises for 5 weeks. The CG received no treatment. Outcomes were collected by a blind rater at baseline and 5-week follow-up. Orofacial pain intensity was collected once a week. A mixed ANOVA and Cohen's d were used to determine differences within/between groups and effect sizes. RESULTS: Pain intensity showed significant time-by-group interaction (P < 0.05), with significant between-group differences at four and five weeks (P < 0.05), with large effect sizes (d > 0.8). The decrease in orofacial pain over time was clinically relevant only in the IG. Change in headache impact was significantly different between groups, and the IG showed a clinically relevant decrease after the treatment. No effects were found for PPT or mandibular function. CONCLUSION: Women with TMD reported a significant decrease in orofacial pain and headache impact after 5 weeks of treatment aimed at the upper cervical spine compared to a CG.

A pilot educational intervention for headache and concussion: The headache and arts program.

OBJECTIVE: Using a science, technology, engineering, arts, and mathematics (STEAM) curriculum, we developed, piloted, and tested the Headache and Arts Program. This program seeks to increase knowledge and awareness of migraine and concussion among high school students through a visual arts-based curriculum. METHODS: We developed a 2-week Headache and Arts Program with lesson plans and art assignments for high school visual arts classes and an age-appropriate assessment to assess students' knowledge of migraine and concussion. We assessed students' knowledge through (1) the creation of artwork that depicted the experience of a migraine or concussion, (2) the conception and implementation of methods to transfer knowledge gained through the program, and (3) preassessment and postassessment results. The assessment was distributed to all students prior to the Headache and Arts Program. In a smaller sample, we distributed the assessment 3 months after the program to assess longitudinal effects. Descriptive analyses and p values were calculated using SPSS V.24 and Microsoft Excel. RESULTS: Forty-eight students participated in the research program. Students created artwork that integrated STEAM knowledge learned through the program and applied creative methods to teach others about migraine and concussion. At baseline, students' total scores averaged 67.6% correct. Total scores for the longitudinal preassessment, immediate postassessment, and delayed 3-month postassessment averaged 69.4%, 72.8%, and 80.0% correct, respectively. CONCLUSION: The use of a visual arts-based curriculum may be effective for migraine and concussion education among high school students.

Left Dorsolateral Prefrontal Cortex rTMS in Alleviating MTBI Related Headaches and Depressive Symptoms.

OBJECTIVE: Persistent mild traumatic brain injury related headache (MTBI-HA) represents a neuropathic pain state. This study tested the hypothesis that repetitive transcranial magnetic stimulation (rTMS) at the left prefrontal cortex can alleviate MTBI-HA and associated neuropsychological dysfunctions. METHODS AND MATERIALS: Veterans with MTBI-HA were randomized to receive four sessions of either real (REAL group) or sham (SHAM group) high frequency rTMS delivered at 10 Hz, 80% of resting motor threshold and 2000 pulses per session at >24 and <72 hours apart. Pre-treatment, post-treatment 1-week and 4-week headache and neuropsychological assessments were conducted. RESULTS: Twenty nine out of forty-four consented subjects completed the study. A two-factor (visit × treatment) repeated measures ANOVA showed a significant (p = 0.002, F = 11.63, df = 1) interaction for the average daily persistent headache intensity with the REAL group exhibiting a significant (p < 0.0001) average reduction (±SD) of 25.3 ± 16.8% and 23.0 ± 17.7% reduction in their numerical rating scale at the one-week and four-week post-treatment assessments in comparison to <1 ± 11.7% and 2.3 ± 14.5% reduction found in the SHAM group. In addition, a significant (p < 0.01) 50% and 57% reduction was found in the prevalence of persistent headache in the REAL group at the one-week and four-week assessments in comparison to 7% and 20% reduction found in the SHAM group. Furthermore, the REAL group demonstrated a significant (p = 0.033) improvement (from 22.3 ± 6.4 at pre-treatment to 19.0 ± 5.0 at post-treatment one-week) in the Hamilton Rating Scale for Depression score, while the SHAM group's score remained largely unchanged (from 25.33 ± 8.43 to 24.64 ± 5.03) in the same time frame. This trend of improvement, although not statistically significant, continues to the post-treatment four-week assessment. CONCLUSION: A short-course rTMS at the left DLPFC can alleviate MTBI-HA symptoms and provide a transient mood enhancing benefit. Further studies are required to establish a clinical protocol balancing both treatment efficacy and patient compliance.

Posttraumatic Headache and Its Impact on Return to Work After Mild Traumatic Brain Injury.

OBJECTIVE: To examine the value of posttraumatic headaches in predicting return to work (RTW) in patients with mild traumatic brain injury (MTBI). SETTING AND PARTICIPANTS: A total of 109 participants recruited from an outpatient head injury rehabilitation center, British Columbia, Canada. DESIGN: Logistic regression analyses of secondary data. MAIN MEASURE: The Numerical Pain Rating Scale (NPRS), measure of headache intensity. Nine resulting NPRS scores were used to predict successful versus unsuccessful RTW. RESULTS: The largest effect size [odds ratio Exp(B)] value of 0.474] indicated that the odds of returning to work successfully are more than cut in half for each unit increase in NPRS rating. CONCLUSION: To the author's knowledge, this is the first study of the impact of headache intensity on RTW for patients with MTBI. Posttraumatic headache severity after MTBI should be taken into account when developing models to predict RTW for this population. Headache intensity may act as a confounding variable for at least some injury characteristics (eg, cognitive functioning) and may add to the inconsistencies in the TBI and MTBI literature. Results may be utilized to guide rehabilitation efforts in planning RTW for patients with MTBI.

Headache, low back pain, other nociceptive and mixed pain conditions in neurorehabilitation. Evidence and recommendations from the Italian Consensus Conference on Pain in Neurorehabilitation.

Pain is a disabling symptom and is often the foremost symptom of conditions for which patients undergo neurorehabilitation. We systematically searched the PubMed and Embase electronic databases for current evidence on the frequency, evolution, predictors, assessment, and pharmacological and non-pharmacological treatment of pain in patients with headache, craniofacial pain, low back pain, failed back surgery syndrome, osteoarticular pain, myofascial pain syndrome, fibromyalgia, and chronic pelvic pain. Despite the heterogeneity of published data, consensus was reached on pain assessment and management of patients with these conditions and on the utility of a multidisciplinary approach to pain therapy that combines the benefits of pharmacological therapy, physiotherapy, neurorehabilitation, and psychotherapy. We of the Italian Consensus Conference on Pain in Neurorehabilitation (ICCPN) suggest a need to conduct randomized controlled trials on the efficacy of pain treatments and their risk-benefit profile for the conditions we have reviewed.

The Effect of Guidance regarding Home Exercise and ADL on Adolescent Females Suffering from Adverse Effects after HPV Vaccination in Japanese Multidisciplinary Pain Centers.

Background. Two prophylactic papillomavirus (HPV) vaccines have been available for primary prevention of cervical cancer. Although serious adverse effects (AE) were rare, more than 230 women have been suffering from severe AEs such as persistent pain and headache in Japan. Our research group started to treat adolescent females suffering from the AEs. Objective. To survey the characteristics of and the effects of cognitive behavioral therapy on adolescent female suffering from the AEs in Japanese multidisciplinary pain centers. Methods. One hundred and forty-five patients suffering from the AEs were reviewed retrospectively and 105 patients of them were provided guidance on home exercise and activities of daily living based partially on a cognitive-behavioral approach. The intensity of pain was rated by the patients using a numerical rating scale (NRS). Furthermore, the Hospital Anxiety and Depression Scale (HADS) and the Pain Catastrophizing Scale (PCS) were used. Results. Eighty out of the 105 patients who received the guidance were followed up, 10 displayed a marked improvement, and 43 showed some improvement. Conclusions. Guidance on home exercise and activities of daily living based on a cognitive-behavioral approach alleviated the AEs that women suffered from after HPV vaccination in Japan.

Efficacy of a workplace relaxation exercise program on muscle tenderness in a working community with headache and neck pain: a longitudinal, controlled study.

BACKGROUND: Pericranial muscle tenderness shows a remarkable prevalence not only in tension-type headache, but also in migraine, both episodic and chronic. Neck pain is a common disorder and leads to a high rate of work disability; its prevalence increases for headache. AIM: This study aimed at examining the effects of a relaxation exercise programme on pericranial/cervical muscle tenderness in a working community with headache and neck pain. DESIGN: This was a controlled, non-randomized trial. SETTING: The study was carried out in a working community, on the employees of the City of Turin's central and peripheral registry and tax offices. POPULATION: A total of 384 workers were enrolled and divided into two groups: a study group (group 1; 192 subjects) and a control group (group 2; 192 subjects). METHODS: A programme, with relaxation/posture exercises and a visual feedback, was carried out for Group 1 for 6 months and, afterwards, also for group 2 for the same follow-up period throughout. Data on head/neck pain were collected. Standard palpation of pericranial and cervical muscles was done, scoring each patient for Pericranial Muscle Tenderness (PTS) (0-3), Cervical Muscle Tenderness (CTS) (0-3) and a Cumulative Muscle Tenderness (CUM) (0-6). RESULTS: After 6 months from baseline, a significant difference was observed between the groups: i.e. group 1 had an average change from baseline of -0.19 for PTS, -0.2 for CTS and -0.36 for the CUM score - in association with a reduction in headache, neck and shoulder pain. The difference between the groups in PTS, CTS and CUM scores was no longer detectable at the end of the study, after also group 2 performed the programme. CONCLUSIONS: The administration of a workplace relaxation exercise intervention significantly decreased pericranial/cervical muscle tenderness in the working community, in association with head-neck pain benefit. CLINICAL REHABILITATION IMPACT: This relaxation exercise programme was remarkably cost-effective, yielding a relevant benefit on pericranial/cervical muscle tenderness in a working community, at a relatively low cost.

An Empirical Examination of the Role of Common Factors of Therapy During a Mindfulness-based Cognitive Therapy Intervention for Headache Pain.

OBJECTIVE: It is often assumed that psychosocial pain treatments work because of specific active components of the intervention. The degree to which common factors may contribute to improved pain outcomes is not well researched. The purpose of this study was to examine patient-related and therapist-related common factors during a Mindfulness-Based Cognitive Therapy (MBCT) for headache pain trial. MATERIALS AND METHODS: This study was a secondary analysis of a parallel group, unblinded, randomized controlled trial in which MBCT was compared with a control. A series of linear regression models and 1 bootstrap mediation model were conducted with the sample of participants that completed MBCT (N=21). RESULTS: In-session participant engagement was positively associated with treatment dose indicators of session attendance (P=0.038) and at-home meditation practice (P=0.027). Therapist adherence and quality were both significant predictors of posttreatment client satisfaction (P=0.038 and 0.034, respectively). Therapist appropriateness was not significantly associated with any of the variables of interest (P>0.05). Baseline pain intensity was positively associated with pretreatment expectations and motivations (P=0.049) and working alliance (P=0.048), and working alliance significantly predicted posttreatment patient satisfaction (P<0.001). Higher pretreatment expectations and motivation significantly predicted greater improvement in pretreatment to posttreatment change in pain interference (P=0.016); however, this relation was fully mediated by baseline pain intensity (P<0.05). DISCUSSION: Common factors play an important role in improving pain outcomes and patient satisfaction during a MBCT for headache pain intervention. Stimulating positive pretreatment expectations and patient motivation, as well as building strong rapport is an important component of treatment success.

[Organisation of headache units from a multidisciplinary point of view]. / Organizacion de las unidades de cefalea desde un punto de vista multidisciplinar.

Headache units have come into being to respond to the need to address the treatment of patients with complex headaches in a multidisciplinary manner. Although headaches are one of the most prevalent medical pathologies, it is surprising how little is being done to foster the development of such units. Within the multidisciplinary organisation, the role of the neurologist with adequate training in this field is essential. He or she is the person responsible for receiving, directing, supervising and coordinating the treatment, together with other medical specialties. The basic core of the team should consist of a psychiatrist, psychologist and physiotherapist. Their joint coordinated action generates an objective improvement in the pain over and beyond that achieved with each isolated treatment.

TITLE: Organizacion de las unidades de cefalea desde un punto de vista multidisciplinar.Las unidades de cefaleas surgen ante la necesidad de abordar de forma multidisciplinar el tratamiento de pacientes con dolores de cabeza complejos. A pesar de que las cefaleas son una de las patologias medicas mas prevalentes, es llamativa la poca promocion que existe para su desarrollo. Dentro de la organizacion multidisciplinar, el papel del neurologo debidamente formado en este campo es crucial. Es la persona encargada de recibir, dirigir, supervisar y coordinar el tratamiento, junto con otras especialidades medicas. Se debe contar con la participacion del psiquiatra, del psicologo y del fisioterapeuta como nucleo basico. Su actuacion conjunta y coordinada genera de forma objetiva una mejoria del dolor frente a cada tratamiento de forma aislada.

The influence of headaches in patients with chronic dizziness.

CONCLUSION: The frequency of headaches in patients complaining of chronic dizziness is closely related to the severity of the dizziness impairments and mood states, such as anxiety. It is, therefore, important to treat co-morbid headache in patients with chronic dizziness. The severity of the dizziness impairments and other mood states, including anxiety, did not differ between patients with migraine or non-migraine headaches. OBJECTIVES: Patients with chronic dizziness often complain of headaches or general fatigue. This study investigated the influence of the frequency of headaches on dizziness impairments, anxiety, quality-of-life, and other mood states in patients with chronic dizziness. METHOD: The subjects consisted of 100 consecutive patients with intractable dizziness. Several types of questionnaires were used in the investigations. RESULTS: Of the 85 patients, 51 had either type of headache (tension headache, 38; migraine, 13). The total score on the Dizziness Handicap Inventory correlated linearly with general fatigue (R = 0.39, p < 0.001) and headache (R = 0.25, p < 0.05). The patients with any type of headache had a significantly more positive family history of headache (p < 0.05).

Headache after traumatic brain injury: a national survey of clinical practices and treatment approaches.

BACKGROUND: Individuals with headache after traumatic brain injury (TBI) receive care in a wide variety of clinical locations by physicians trained in multiple specialties. OBJECTIVE: To understand current practice patterns and perceptions of treatment issues among clinicians managing headache after TBI. DESIGN: National survey of current clinical practice using a 20-item questionnaire developed by the authors. PARTICIPANTS: Survey respondents were members of the Central Nervous System Council list survey of the American Academy of Physical Medicine and Rehabilitation (N = 1782) and the American Headache Society membership (N = 1260). METHODS: The survey was sent electronically to potential participants and was followed by 2 biweekly reminders. The survey queried the physicians' clinical setting; their use of headache classification systems, headache diaries, checklists, and diagnostic procedures; the pharmacologic and nonpharmacologic treatments prescribed; and headache chronicity and associated symptoms and disorders among their patients with TBI. RESULTS: Completed surveys were received from 193 respondents. The use of standardized classification systems and checklists was commonly reported. Respondents used nonpharmacologic and pharmacologic treatment approaches with similar frequency and modest perceived success rates. A high frequency of headache-associated new sleep and mood disorders was reported. When response differences occurred between practice settings, they reflected a focus on headache diagnosis, classification, and pharmacologic treatment among neurology and specialty headache clinics, whereas a nonpharmacologic approach to management among TBI specialty and general rehabilitation clinicians was more commonly reported. CONCLUSION: Management strategies for treating headache after TBI vary widely among general and specialty clinical practices. This suggests that additional research is needed that would lead to an increase in the use of established headache classification and the development of standardized management approaches so that all practitioners who care for patients after TBI can provide consistent effective care.

Comparison between neck pain disability and cervical range of motion in patients with episodic and chronic migraine: a cross-sectional study.

OBJECTIVE: The purpose of this study was to evaluate neck pain-related disability and cervical range of motion (CROM) in patients with episodic migraine (EM) and chronic migraine (CM) and to examine the correlation of both outcomes. METHODS: This cross-sectional study consisted of 91 patients with EM and 34 with CM. Cervical range of motion was measured with the CROM device, and pain during the cervical movement was recorded. Self-reported disability related to neck pain was assessed with the Neck Disability Index. RESULTS: Patients with CM showed higher Neck Disability Index scores and more moderate and severe disability (P = .01). Severe disability as a result of neck pain was associated with 7.6-fold risk of developing CM (P = .003). No significant differences in CROM were identified between groups. Moderate negative correlations between CROM and disability were found for 4 motions within the CM group (-0.60

Multiple Sclerosis/Chronic Fatigue Syndrome overlap: When two common disorders collide.

INTRODUCTION: Fatigue is a major cause of disability and handicap in Multiple Sclerosis (MS) patients. The management of this common problem is often difficult. Chronic Fatigue Syndrome (CFS/ME) is another common cause of fatigue which is prevalent in the same population of middle aged females commonly affected by MS. AIM: This report aims at examining the potential coexistence of MS and CFS/ME in the same patients. METHOD: This is a retrospective study examining a cohort of MS patients referred for rehabilitation. The subjects were screened for CFS/ME symptoms. RESULTS: Sixty-four MS patients (43 females) were screened for CFS/ME. Nine patients (14%) with a mean age 52 (SD 9.7) who were all females fulfilled the Fukuda criteria for diagnosis of CFS/ME. Their symptoms, including muscular and joint pain, malaise and recurrent headaches, were not explained by the pattern of their MS. DISCUSSION: MS and CFS/ME are two common conditions with increased prevalence in middle aged females. As the diagnosis of CFS/ME is clinical with no positive clinical signs or investigations; it can be made with difficulty in the presence of another clear explanation for the disabling fatigue. Our results suggest that the two conditions may co-exist. Considering CFS/ME as a potential co-morbidity may lead to more focused and appropriate management.

Modeling length-tension properties of RCPm muscles during voluntary retraction of the head.

Head retraction exercises are one of several commonly used clinical tools that are used to assess and treat patients with head and neck pain and to aid in restoration of a normal neutral head posture. Retraction of the head results in flexion of the occipitoatlantal (OA) joint and stretching of rectus capitis posterior minor (RCPm) muscles. The role that retraction of the head might have in treating head and neck pain patients is currently unknown. RCPm muscles arise from the posterior tubercle of the posterior arch of C1 and insert into the occipital bone inferior to the inferior nuchal line and lateral to the midline. RCPm muscles are the only muscles that attach to the posterior arch of C1. The functional role of RCPm muscles has not been clearly defined. The goal of this project was to develop a three-dimensional, computer-based biomechanical model of the posterior aspect of the OA joint. This model should help clarify why voluntary head retraction exercises seem to contribute to the resolution of head and neck pain and restoration of a normal head posture in some patients. The model documents that length-tension properties of RCPm muscles are significantly affected by variations in the physical properties of the musculotendonous unit. The model suggests that variations in the cross sectional area of RCPm muscles due to pathologies that weaken the muscle, such as muscle atrophy, may reduce the ability of these muscles to generate levels of force that are necessary for the performance of normal, daily activities. The model suggests that the main benefit of the initial phase of head retraction exercises may be to strengthen RCPm muscles through eccentric contractions, and that the main benefit of the final phase of retraction may be to stretch the muscles as the final position is held.

Comparison of virtual reality based therapy with customized vestibular physical therapy for the treatment of vestibular disorders.

We examined outcomes in persons with vestibular disorders after receiving virtual reality based therapy (VRBT) or customized vestibular physical therapy (PT) as an intervention for habituation of dizziness symptoms. Twenty subjects with vestibular disorders received VRBT and 18 received PT. During the VRBT intervention, subjects walked on a treadmill within an immersive virtual grocery store environment, for six sessions approximately one week apart. The PT intervention consisted of gaze stabilization, standing balance and walking exercises individually tailored to each subject. Before, one week after, and at six months after the intervention, subjects completed self-report and balance performance measures. Before and after each VRBT session, subjects also reported symptoms of nausea, headache, dizziness, and visual blurring. In both groups, significant improvements were noted on the majority of self-report and performance measures one week after the intervention. Subjects maintained improvements on self report and performance measures at six months follow up. There were not between group differences. Nausea, headache, dizziness and visual blurring increased significantly during the VRBT sessions, but overall symptoms were reduced at the end of the six-week intervention. While this study did not find a difference in outcomes between PT and VRBT, the mechanism by which subjects with chronic dizziness demonstrated improvement in dizziness and balance function may be different.

Postconcussion syndrome and mild head injury: the role of early diagnosis using neuropsychological tests and functional magnetic resonance/spectroscopy.

OBJECTIVE: Postconcussion syndrome (PCS) is usually underestimated in cases of mild head injury (MHI). It is one of the most common causes of physical, cognitive, and psychomotor disturbances that affect the quality of life, work, and social reintegration of individuals. Until now, we did not have evidence of structural abnormalities shown by traditional imaging methods. We describe a series of instruments that confirm PCS with satisfactory evidence. METHODS: We conducted a clinical prospective study of 19 adult patients selected from a pool of 320 adults who had MHI. The cognitive, executive, and memory functions of subjects were examined within the first 72 hours using neuropsychological tests. These results were analyzed with neurological examination and functional MR/spectroscopy. RESULTS: Neurobehavioral alterations were found in 47% of cases, with posttraumatic amnesia. Around 55% of subjects experienced physical disturbances such as headache and postural vertigo due to PCS. The spectroscopy reports revealed neurometabolite disturbances in 54% of cases, particularly N-acetylaspartate (Naa) and the Naa/lactate ratio in the frontal lobe. We observed a relationship between metabolite disturbances in spectroscopy and the digit span backward test (P = .045). CONCLUSIONS: This first diagnostic strategy supports with scientific evidence the presence of PCS in MHI. We identified physical and neuropsychological abnormalities from this group, affecting the areas of memory and learning. Evidence of neurometabolite disturbances were found specifically in the frontal lobe. It is necessary to complete comparative follow-up for an extended period of time. The neuropsychological and spectroscopy tests allow us to confirm the diagnosis of a syndrome that is usually neglected.