Objective: This study compared the effect of cardiovascular high-intensity interval training (HIIT) vs. moderate-intensity continuous training (MICT) on psychosocial responses to exercise, motivation and enjoyment, in individuals with chronic stroke.
Design: A secondary analysis of motivation and enjoyment outcomes collected from a randomized controlled trial (NCT03614585) comparing 12-weeks of HIIT vs MICT in participants with chronic stroke (6-60 months post-stroke) was conducted.
Setting: General community.
Participants: Seventy-one individuals with chronic stroke (mean ± SD, age: 65.5 ± 8.4 years, 19.4 ± 13.4 months post-stroke, 38% female) and mild disability (median ± IQR, NIH Stroke Scale score 1 ± 2).
Interventions: Twelve-week, 3x/per week progressive cardiovascular HIIT or MICT program conducted on NuStep recumbent steppers.
Main outcome measures: Motivation (Behavioral Regulation in Exercise Questionnaire-3) was measured at week 1, 6 and 12. Enjoyment outcomes comprised of affective response (Feeling Scale) assessed at each training session, and post-exercise enjoyment (Physical Activity Enjoyment Scale) assessed at week 6 and 12. Linear mixed models, examining group, time and group × time point interactions in motivation constructs and composite scores, mean affective response per session, and post-exercise enjoyment were used to compare the effect of HIIT vs. MICT.
Results: HIIT elicited a lower affective response (mean difference [95% CI]: -1.18 [-1.90, -0.47]; p = 0.002), that also progressively declined during sessions, in contrast to MICT (group × time point interaction: F [2,63.5] = 3.99, p = 0.02). HIIT and MICT did not elicit any significant difference between groups or change over time for post-exercise enjoyment or any motivation constructs (p>0.05).
Conclusions: Despite lower affective response during exercise, HIIT and MICT elicit equivalent motivation and post-exercise enjoyment. This study provides further support for the implementation of HIIT in stroke rehabilitation by demonstrating sustained responses of motivation and post-enjoyment. Future studies should consider potential strategies that positively reinforce these important psychosocial responses to implement HIIT in post-stroke rehabilitation.
Objective: To compare the effects of different peripheral electrical stimulation protocols and current frequencies for post-stroke motor function and activities of daily living (ADL).
Data sources: Seven databases (PubMed, Embase, Cochrane Library, Chinese National Knowledge Infrastructure, VIP Database, Wan-Fang Database and Chinese Biomedical Database) were searched from inception to August 2024.
Study selection: Two reviewers independently performed the literature selection. The included studies were randomized controlled trials providing peripheral electrical stimulation for patients with stroke.
Data extraction: Two reviewers independently extracted data following a pre-developed Excel data collection sheet, including trial characteristics, intervention and comparator details, and outcome data. Risk of bias was evaluated by RoB2, PRISMA guidelines were followed for reporting.
Data synthesis: A total of 106 trials with 7,513 participants were included. Meta-analysis showed that neuromuscular electrical stimulation (NMES) could be the optimal electrical stimulation protocol for improving the Fugl-Meyer Assessment (FMA) score (SMD = 1.67, 95% CI (1.14, 2.21)) and improving the Modified Barthel Index (MBI) score (SMD = 1.73, 95% CI (1.10, 2.37)). Results showed that different frequencies of electrical stimulation ranked the top five in descending order for improving FMA scores as 20-30Hz_NMES (SUCRA = 87.5%) > 100Hz_NMES (SUCRA = 75.4%) > 100Hz_functional electrical stimulation (FES) (SUCRA = 70.9%) > 20/35Hz_transcutaneous electrical acupoint stimulation (TEAS) (SUCRA = 69.8%) > 1-4Hz_electrical acupuncture (EA) (SUCRA = 69.6%), and ranked the top five in descending order for improving MBI scores as 100Hz_transcutaneous electrical nerve stimulation (TENS) (SUCRA = 77.3%) > 5/15Hz_NMES (SUCRA = 68.3%) > 100Hz_TEAS (SUCRA = 65.6%) > 35-50Hz_FES (SUCRA = 64.8%) > 1-4Hz_EA (SUCRA = 60.0%).
Conclusions: Adding electrical stimulation on the basis of routine rehabilitation training can improve the motor dysfunction and ADL of patients with stroke. Specifically, NMES with 20-30 Hz improves motor function best, while 100 Hz TENS improves ADL best.
Objective: To examine: (1) the trajectory of caregiver resilience over two years following onset of a care recipient's moderate-to-severe traumatic brain injury (TBI), (2) caregiver-related outcomes associated with resilience, and (3) changes in associations between caregiver resilience, other caregiver characteristics, and care-recipient variables across time.
Design: Prospective cohort.
Setting: TBI Model Systems (TBIMS) centers.
Participants: TBIMS participants (care-recipients) were approached to enroll in this study and identify a caregiver. 258 care-recipient and caregiver dyads were enrolled.
Interventions: N/A MAIN OUTCOME MEASURES: Caregiver data included demographics, health history, Patient Health Questionnaire-9 (PHQ-9), Generalized Anxiety Disorder-7 (GAD-7), Zarit Burden Interview (ZBI), Family Needs Questionnaire-Revised (FNQ-R), and Connor-Davidson Resilience Scale 10 (CD-RISC-10). All caregiver data were self-reported via phone interview or mailed surveys at 6 months, 12 months, and 24 months post-injury. At all 3 time points, care-recipients with TBI also completed their own CD-RISC-10, PHQ-9, GAD-7, and Disability Rating Scale (DRS).
Results: Linear mixed-effects models indicated that the trajectory of resilience was stable within caregivers over two years post-injury. There were significant, positive associations for all caregiver FNQ-R subscales (all p<0.001) with care-recipient and caregiver CD-RISC-10 scores (p=0.001), indicating that more caregiving needs endorsed as "met" corresponded with higher resilience. Caregiver PHQ-9 and ZBI scores were found to be negatively associated with resilience (both p<0.001). When all covariates were included in the multivariable model, met emotional needs was positively associated with caregiver resilience (p<0.0001). Negative associations with caregiver resilience included higher caregiver PHQ-9 scores (p = 0.001) and perceptions of caregiving burden (p=0.003).
Conclusions: Caregiver levels of resilience were generally stable over two years post-TBI. Caregivers' resilience was positively associated with perceptions of their needs being met and negatively associated with caregiving burden and emotional distress. Further research is needed to develop and evaluate the utility and feasibility of interventions to enhance resilience, meet family needs, and improve long-term outcomes following brain injury.
Objective: To examine the effects on strength, pain intensity, range of motion (ROM), and functionality of a 12-week dual-task resistance exercise program in patients undergoing rehabilitation from elbow fractures.
Design: Randomized controlled trial.
Setting: Rehabilitation hospital.
Participants: Individuals undergoing elbow fracture rehabilitation (N=32).
Intervention: Randomization was performed sequentially using numbered envelopes containing assignments to either an intervention group (dual-task resistance training using a mathematical task with self-regulation, N=18) or a control group (traditional resistance training, N=14) for 12 weeks.
Main outcome measures: The primary outcomes were muscle strength for elbow flexors and extensors and pain assessed by the visual analog scale from 0 to 100 mm. The secondary outcomes were kinesiophobia assessed by the Tampa Scale-11 and disability using the Disabilities of the Arm, Shoulder, and Hand questionnaire and passive ROM.
Results: Dual-task resistance training improved strength and reduced pain more than resistance training alone (P<.05), and only the dual-task group improved in kinesiophobia (P<.05). The linear regression showed a significant negative association between kinesiophobia and increased elbow strength in the dual-task group (flexion, r=-0.53, P=.024; extension, r=-0.65, P=.004) but not in the control group (P>.05). No significant differences were observed between the group for disability and passive ROM (P>.05).
Conclusions: Dual-task resistance training and traditional resistance training both enhance strength, reduce pain, improve functionality, and increase ROM after 12 weeks of elbow fracture rehabilitation. However, dual-task resistance training is superior to resistance training alone in enhancing strength and reducing pain.
Objectives: To evaluate the combined effect of 2 different regenerative therapies, extracorporeal shock wave therapy (ESWT) and platelet-rich plasma (PRP), along with therapeutic exercise, in patients with lateral epicondylitis (LE).
Design: Prospective, randomized, sham-controlled trial.
Settings: Outpatient clinic.
Participants: Ninety-one patients (N=91) with LE for >3 months were randomly allocated into 3 groups.
Interventions: Participants were assigned to PRP+ESWT, Sham PRP+ESWT, or ESWT only treatment group. All groups received exercise therapy.
Main outcome measures: The primary outcome was the visual analog scale (VAS) pain score. Secondary outcomes included handgrip strength, Patient-rated Tennis Elbow Evaluation (PRTEE), Quick Disabilities of the Arm, Shoulder, and Hand (Quick DASH), Short Form 36, ultrasonographic assessments (common extensor tendon [CET] measurement and total ultrasonography scale score [TUSS]), and isokinetic evaluation. Participants were evaluated 3 times: pre-treatment (T0), after 4 weeks (T1), and after 12 weeks (T2).
Results: The PRP group showed superiority over other groups in terms of VAS (activity and night) scores at follow-ups. With regard to the secondary outcomes, in the short term, the PRP group demonstrated a statistically significant difference in the PRTEE-function. In the 12th week, PRP outperformed only against ESWT in all PRTEE parameters, and also showed superior Quick DASH scores to the other groups. In handgrip strength, the PRP group demonstrated superiority over the Sham PRP group at T1 and over both groups at T2. In the isokinetic evaluation, PRP group showed superiority over the Sham PRP group in both wrist flexion/extension peak torque scores during follow-ups. No significant differences were found in any of the ultrasonographic parameters, including CET thickness and TUSS scores, between the groups at the 4th and 12th week.
Conclusions: The combined application of ESWT and PRP in the management of LE has demonstrated superior efficacy, as evidenced by significant improvements in clinical parameters.
Objective: To determine the association between performance-based and patient-reported functional capacity at the conclusion of 12-week rehabilitation with average daily step counts and peak walking cadence 38 weeks after total knee arthroplasty (TKA).
Design: Secondary analysis of a randomized controlled trial.
Setting: Veterans Affairs Medical Center.
Participants: A total of 87 US military Veterans (age: 67±7y, 87% male).
Interventions: Twelve-week rehabilitation beginning 2 weeks post-TKA plus random assignment to either a telehealth-based physical activity behavior change intervention or control group.
Main outcome measures: Performance-based (timed Up-and-Go [TUG], 30-second sit-to-stand) and patient-reported measures (Western Ontario and McMaster Universities Osteoarthritis Index, Veterans RAND 12-Item Health Survey [VR-12]) were assessed at rehabilitation discharge (14wk post-TKA). Physical activity was measured using thigh-mounted accelerometry 38 weeks post-TKA. Relationships between participant characteristics (age, sex, body mass index, group assignment), functional capacity at discharge, and long-term physical activity outcomes (average daily step count and peak walking cadence) were evaluated using single- and multiple-variable linear and logistic regressions.
Results: Univariate analyses: TUG time (r=-0.33, P=.002) and VR-12 physical health subscore (r=0.23, P=.036) were correlated with average daily step count at week 38. TUG time (r=-0.31, P=.006) was correlated with peak walking cadence. Multivariate analyses: multiple linear regression controlling for age, sex, and body mass index identified TUG (B=-301.25, P=.039) and VR-12 physical health (B=93.1, P=.049) as predictors of daily step count. TUG time (B=-1.5, P=.012) and assignment to physical activity behavior change intervention (B=13.7, P<.001) predicted peak walking cadence. No significant predictors of attaining a 7500 steps per day threshold were identified.
Conclusions: Functional capacity at discharge is related to physical activity characteristics 38 weeks post-TKA. Although behavior change interventions are needed to address physical activity deficits postoperatively, the link between functional capacity and activity suggests additional need to address functional capacity limitations during TKA rehabilitation.
Objective: To investigate the external validation of the previously reported minimal important change (MIC) in the 6-minute walk test (6MWT) and update it for patients with subacute stroke hospitalized in rehabilitation unit.
Design: Longitudinal study.
Setting: Rehabilitation unit of a neurosurgical hospital.
Participants: One hundred and seven patients with subacute stroke.
Interventions: Not applicable.
Main outcome measures: The 6MWT, modified Rankin Scale (mRS), Functional Ambulation Categories (FAC), and Functional Independence Measure (FIM) were assessed at 30 (baseline) and 60 (follow-up) days after stroke onset. Patients were divided into 2 groups according to improvements of mRS by ≥1, FAC by ≥1, or FIM by ≥22. The change in the 6MWT between baseline and follow-up was calculated and patients were divided into 2 groups according to improvements of 6MWT by ≥71 m. External validation was performed using likelihood ratio (LR) between change of 6MWT by ≥71 m and improvement of mRS. An LR+ of >2.0 and LR- of <0.5 was considered valid. The new MIC of the 6MWT was calculated for the mRS, FAC, and FIM using the receiver operating characteristic curve (MICROC) and adjusted predictive modeling method (MICadjusted).
Results: No external validation was achieved (LR+ of 1.41, LR- of 0.77). The MICROC values for mRS, FAC, and FIM were 22.0, 69.0, and 22.0 m, respectively. The MICadjusted values for the mRS, FAC, and FIM were 68.7, 63.1, and 83.1 m, respectively. Only the MIC of the 6MWT for FAC was validated.
Conclusions: The previously reported MIC of the 6MWT was not suitable for patients with subacute stroke hospitalized in rehabilitation units; however, the newly determined MIC was useful.