Post-COVID-19 functional status scale: Cross-cultural adaptation and measurement properties of the Brazilian Portuguese version.

BACKGROUND: The Post-COVID-19 Functional Status (PCFS) scale was created to assess the functional status of patients after hospital discharge due to COVID-19. OBJECTIVE: To perform cross-cultural adaptation of the PCFS Scale and Manual into Brazilian Portuguese and evaluate its measurement properties in patients post-COVID-19. METHODS: For the cross-cultural adaptation, independent translations and back-translations were performed. This was followed by a pre-test, with analysis of the Content Validity Index (CVI), and preparation of the final version, after evaluating the measurement properties. Spearman's correlation between the PCFS and the WHO Disability Classification Scheme (WHODAS 2.0) was used for convergent validity. Weighted Kappa (wκ) was used for test-retest and interobserver reliability for PCFS scores and Kappa (κ) for PCFS items. Internal consistency was assessed using Cronbach's alpha. Only patients with post-discharge COVID-19 were evaluated through video-conferencing platforms. RESULTS: The CVI was 0.75-0.83 for comprehension and 0.83-0.84 for the language of the self-administered questionnaire and the structured interview version. For measurement properties, 63 patients were evaluated, 68% male, 51.50 (12.60) years, 12.28 (7.62) days of hospitalization. For the convergent validity, a strong correlation was found (r = 0.73; p<0.01). The test-retest (wκ=0.54) and interobserver (wκ=0.43) reliability was moderate and the item-by-item analyzes ranged from fair to substantial (κ=0.25-0.66) and weak to substantial (κ=0.07-0.79). Internal consistency was excellent (0.85). CONCLUSION: The final PCFS in Brazilian Portuguese showed adequate content validity, reliability, internal consistency, and convergent validity for the functional assessment of patients after hospital discharge due to COVID-19.

Assessment of Passive Upper Limb Stiffness and Its Function in Post-Stroke Individuals Wearing an Inertial Sensor during the Pendulum Test.

This article proposes the evaluation of the passive movement of the affected elbow during the pendulum test in people with stroke and its correlation with the main clinical scales (Modified Ashworth Scale, Motor Activity Log, and Fulg Meyer). An inertial sensor was attached to the forearm of seven subjects, who then passively flexed and extended the elbow. Joint angles and variables that indicate viscoelastic properties, stiffness (K), damping (B), E1 amp, F1 amp, and relaxation indices were collected. The results show that the FM scale is significantly correlated with the natural frequency (p = 0.024). The MAL amount-of-use score correlates with the natural frequency (p = 0.024). The variables E1 amp, F1 amp, RI, and ERI are not correlated with the clinical scales, but they correlate with each other; the variable E1 amp correlates with F1 amp (p = 0.024) and RI (p = 0.024), while F1 amp correlates with ERI (p = 0.024). There was also a correlation between the natural frequency and K (r = 0.96, p = 0.003). Non-linear results were found for the properties of the elbow joint during the pendulum test, which may be due to the presence of neural and non-neural factors. These results may serve as a reference for future studies if alternative scales do not provide an accurate reflection.

The immediate effect of thumb orthoses on upper extremity's movement: A kinematic analysis of five unique devices.

BACKGROUND: Thumb orthoses are a standard treatment modality, with substantial evidence to support its usage for multiple conditions affecting the upper extremity. Despite commonly prescribed, little is known about the immediate impact of such devices on the upper extremity, including potential modifications on motor patterns. RESEARCH QUESTION: We aimed to determine the changes in the upper limb kinematics during the usage of thumb orthotics, comparing differences in orthotic design, length, and fabrication materials. METHODS: In this cross-sectional study, subjects performed a standardized reaching task and the placing subtest of the Minnesota Manual Dexterity Test (MMDT) while wearing five unique thumb orthoses. Besides the active range of motion of the shoulder, elbow, wrist and hand joints, movement smoothness (Number of Movement Units-NMU), speed, and motion control strategies were analyzed through eight Qualisys Oqus 300 cameras (Qualisys AB, Göteborg, Sweden). FINDINGS: Ten non-disabled, university students participated in this study. Despite differences in fabrication materials, all orthotics reduced thumb's abduction (13.3° to 4.3°), and metacarpophalangeal flexion (11.5° to 4.2°). Although orthotics impacted movement smoothness and hand function during its usage, forearm-based devices further increased the NMUs and the time required for the MMDT performance (Control: NMU = 4.8, MMDT = 58.1; Long Orthotics: NMU = 6.6, MMDT = 78.2), while short, flexible orthoses provided thumb stabilization without significant impact on upper extremity movement strategies. SIGNIFICANCE: Although joint stabilization was similar among orthotics fabricated with rigid and flexible materials, the improved hand dexterity observed during the use of flexible devices suggests an advantage of flexible orthotics for enhanced stability and hand function. These results can assist healthcare professionals during the selection and prescription of thumb orthotics, providing information not only on the range of motion but other sensorimotor aspects involved in upper extremity movement patterns that may be affected by orthotics usage.

Influence of functional task-oriented mental practice on the gait of transtibial amputees: a randomized, clinical trial.

BACKGROUND: Mental practice (MP) through motor imagery is a cognitive training strategy used to improve locomotor skills during rehabilitation programs. Recent works have used MP tasks to investigate the neurophysiology of human gait; however, its effect on functional performance has not been evaluated. In the present study, the influence of gait-oriented MP tasks on the rehabilitation process of gait in transtibial amputees was investigated by assessing the vertical (V), anterior-posterior (AP), and medio-lateral (ML) ground reaction forces (GRFs) and the time duration of the support phase of the prosthetic limb. METHODS: Unilateral transtibial amputees, who were capable of performing motor imagination tasks (MIQ-RS score ≥4), were randomly divided into two groups: Group A (n = 10), who performed functional gait-oriented MP combined with gait training, and Group B (n = 5), who performed non-motor task MP. The MP intervention was performed in the first-person perspective for 40 min, 3 times/week, for 4 weeks. The GRF outcome measures were recorded by a force platform to evaluate gait performance during 4 distinct stages: at baseline (BL), 1 month before the MP session; Pre-MP, 1-3 days before the MP session; Post-MP, 1-3 days after the MP session; and follow-up (FU), 1 month after MP session. The gait variables were compared inter- and intra-group by applying the Mann-Whitney and Friedman tests (alpha = 0.05). RESULTS: All volunteers exhibited a homogenous gait pattern prior to MP intervention, with no gait improvement during the BL and Pre-MP stages. Only Group A showed significant improvements in gait performance after the intervention, with enhanced impact absorption, as indicated by decreased first V and AP peaks; propulsion capacity, indicated by increasing second V and AP peaks; and balance control of the prosthetic limb, indicated by decreasing ML peaks and increasing duration of support. This gait pattern persisted until the FU stage. CONCLUSIONS: MP combined with gait training allowed transtibial amputees to reestablish independent locomotion. Since the effects of MP were preserved after 1 month, the improvement is considered related to the specificity of the MP tasks. Therefore, MP may improve the clinical aspect of gait rehabilitation when included in a training program.

Differences in orthotic design for thumb osteoarthritis and its impact on functional outcomes: A scoping review.

BACKGROUND: Orthoses are a well-known intervention for the treatment of thumb osteoarthritis; however, there is a multitude of orthotic designs and not enough evidence to support the efficacy of specific models. OBJECTIVE: To examine the influence of different orthoses on pain, hand strength, and hand function of patients with thumb osteoarthritis. STUDY DESIGN: Literature review. METHODS: A scoping literature review of 14 publications reporting orthotic interventions for patients with thumb osteoarthritis was conducted. Functional outcomes and measures were extracted and analyzed. RESULTS: In total, 12 studies reported improvements in pain and hand strength after the use of thumb orthoses. Comparisons between different orthotic designs were inconclusive. CONCLUSION: The use of orthoses can decrease pain and improve hand function of patients with thumb osteoarthritis; however, the effectiveness of different orthoses still needs support through adequate evidence. Clinical relevance Multiple orthoses for thumb osteoarthritis are available. Although current studies support their use to improve pain and hand function, there is no evidence to support the efficacy of specific orthotic designs. Improved functional outcomes can be achieved through the use of short orthoses, providing thumb stabilization without immobilizing adjacent joints.

Towards Parameters and Protocols to Recommend FES-Cycling in Cases of Paraplegia: A Preliminary Report.

Functional Electrical Stimulation assisted cycling (FES-Cycling) is increasingly becoming an alternative option recommended to people with spinal cord injury struggling with paraplegia and interested in practicing sports. In order to propose preconditions to guide FES-Cycling recommendation, we aimed to investigate some features and their potential relationships with responsiveness to Neuromuscular Electrical Stimulation (NMES). Fourteen volunteers attended a public recruitment forum to be assessed about their responsiveness through the 16-sessions of NMES. Volunteers were separated in two groups (responsive and non-responsive to NMES) which were investigated in the light of some personal, clinical, structural and functional features. Fifty seven percent of the initial sample responded to electrical stimulation with a visual contraction. This responsive group was predominantly composed by subjects presenting traumatic spinal cord injuries above T12 vertebral level. Only two subjects became responsive at the 3rd and 16th sessions. Among the observed features, the etiology and level of injuries seems to be more associated to responsiveness. Our observations seem to indicate that subjects with traumatic spinal cord injury above T12 level were the best potential candidates for FES-cycling.

Orthotic use for CMC osteoarthritis: Variations among different health professionals in Brazil.

STUDY DESIGN: Cross-sectional descriptive study. INTRODUCTION: Osteoarthritis (OA) is the most prevalent musculoskeletal disease in the adult and older adult populations. The use of orthoses to stabilize the thumb's articular complex is one of the most common conservative management strategies. Despite substantial research about this topic, there is insufficient evidence about the optimal use of orthoses to inform clinical practice, contributing to practice variations within and across health professionals. PURPOSE OF THE STUDY: To identify the prescription patterns, design preferences, and barriers for the use of orthotic devices among Brazilian health care professionals involved in the treatment of patients with OA of the basal thumb joint. METHODS: An electronic questionnaire was sent to occupational therapists, physiotherapists, and rheumatologists across Brazil through professional association mailing lists. Survey included questions about orthosis design, materials, and barriers to the use of orthotic interventions. Respondents indicated their use based on photographs of 25 orthoses models that were selected through bibliographic review and expert consultation. Descriptive statistics, the chi-square test for independence, and the Fisher exact test were used to compare differences among orthotic prescription preferences, barriers, and challenges observed amidst the 3 participants' professional classes. RESULTS: There was no consensus about orthotic prescription among 275 professionals who answered the survey. About 69% of participants reported the use of multiple orthosis during treatment of patients with thumb OA. Results suggest significant variations in the number of joints included and stabilization strategies adopted, with a preference for orthotics made in rigid materials and involving the wrist, carpometacarpal, and metacarpophalangeal joints (P < .001). The lack of knowledge about orthotic options, institutional regulations, and policies were the major barriers reported by respondents (P < .01). CONCLUSION: A plentiful variety of different orthoses designs were observed in this study, and the prescriptions made by 3 professional classes showed differences regarding types of stabilization, joint involvement, and positioning. Despite the existence of clinical trials suggesting benefits for specific custom-made design models, our results indicated widespread clinical variation in practices and preferences. LEVEL OF EVIDENCE: Not applicable.