Pooled Minimal Clinically Important Differences of the Mini-Balance Evaluation Systems Test in Patients With Early Subacute Stroke: A Multicenter Prospective Observational Study

OBJECTIVE

Balance problems are common in patients with stroke, and the Mini-Balance Evaluation Systems Test (Mini-BESTest) is a reliable and valid assessment tool for measuring balance function. Determining the minimal clinically important difference (MCID) is crucial for assessing treatment effectiveness. This study aimed to determine the MCID of the Mini-BESTest in patients with early subacute stroke.

METHODS

In this prospective multicenter study, 53 patients with early subacute stroke undergoing rehabilitation in inpatient units were included. The mean age of the patients was 72.6 (SD = 12.2) years. The Mini-BESTest, which consists of 14 items assessing various aspects of balance function, including anticipatory postural adjustments, postural responses, sensory orientation, and dynamic gait, was used as the assessment tool. The global rating of change (GRC) scales completed by the participants and physical therapists were used as external anchors to calculate the MCID. The GRC scale measured subjective improvement in balance function, ranging from -3 (very significantly worse) to +3 (very significantly better), with a GRC score of ≥+2 considered as meaningful improvement. Four methods were used to calculate the MCID: mean of participants with GRC of 2, receiver operating characteristic-based method, predictive modeling method, and adjustment of the predictive modeling method based on the rate of improvement. From the MCID values obtained using these methods, a single pooled MCID value was calculated.

RESULTS

The MCID values for the Mini-BESTest obtained through the 4 methods ranged from 3.2 to 4.5 points when using the physical therapist's GRC score as the anchor but could not be calculated using the participant's GRC score. The pooled MCID value for the Mini-BESTest was 3.8 (95% CI = 2.9-5.0).

CONCLUSIONS

The Mini-BESTest MCID obtained in this study is valuable for identifying improvements in balance function among patients with early subacute stroke.

IMPACT

Determination of the MCID is valuable for evaluating treatment effectiveness. The study findings provide clinicians with practical values that can assist in interpreting Mini-BESTest results and assessing treatment effectiveness.

Structural Validity of the Mini-Balance Evaluation Systems Test in Individuals With Spinocerebellar Ataxia: A Rasch Analysis Study

OBJECTIVE

To examine the structural validity of the Mini-Balance Evaluation Systems Test (Mini-BESTest) in individuals with spinocerebellar ataxia (SCA).

DESIGN

Methodological research on data gathered in a cross-sectional study. A Rasch analysis was conducted (partial credit model).

SETTING

Inpatients in a hospital rehabilitation setting.

PARTICIPANTS

A pooled sample of patients with SCA (N=65 [total 110 data]; 23 women, 42 men; mean±SD age 63.1±9.9y).

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURES

We evaluated the Mini-BESTest's category structure, unidimensionality, and measurement accuracy (0: unable to perform or requiring help to 2: normal performance).

RESULTS

The Mini-BESTest rating scale fulfilled the category functioning criteria. The analysis of the standardized Rasch residuals showed the scale's unidimensionality, but there were 7 item pairs indicating local dependence. All of the items fit the underlying scale construct (dynamic balance), with the exception of item #1, "Sit to stand," which was an underfit. The Mini-BESTest demonstrated adequate reliability (person separation reliability=.87) and separated the patients into 5 strata. The item-difficulty measures ranged from -4.49 to 2.02 logits, and the person ability-item difficulty matching was very good (the mean of person ability=-.07 logits and the mean of item difficulty=.00). No floor or ceiling effects were detected. The keyform identified items with small (#11, "Walk with head turns, horizontal") and large (#3, "Stand on 1 leg") item thresholds.

CONCLUSIONS

The Mini-BESTest has a unidimensional balance assessment scale with good category structure and reliability even for individuals with SCA. However, it also has some inherent shortcomings such as fit statistics, local item dependencies, and item thresholds. The results obtained when the Mini-BESTest is administered to patients with cerebellar ataxia should, thus, be interpreted cautiously.

Post-hip-fracture knee pain in older adults prolongs their hospital stays: A retrospective analysis using propensity score matching

BACKGROUND AND PURPOSE

Post-hip-fracture knee pain (PHFKP) occurs in ∼28%-37% of patients and contributes to a prolonged length of hospital stay (LOS). Analyses of LOS prolongation due to PHFKP have been limited to univariate analyses that do not consider important confounding factors. After adjusting for important confounding factors, we investigated whether the presence or absence of PHFKP makes a difference in LOS in patients with hip fractures.

METHODS

We conducted a retrospective review of the medical records of patients who had undergone postoperative rehabilitation after surgery for a hip fracture. Demographic and clinical information, discharge parameters, and PHFKP development information were collected from the medical records. Using propensity score matching, we performed a two-group comparison of LOS, the functional independence measure (FIM) motor score (FIMm), FIMm gain, and FIMm effectiveness in patients with and without PHFKP. Six variables were included in the calculation of propensity scores: age, sex, body mass index, fracture type, American Society of Anesthesiologists physical status, and independence in activities of daily living at discharge. One-way analysis of variance was used to examine the details of the relationships between LOS and (i) the time of PHFKP development and (ii) pain intensity.

RESULTS

We analyzed the cases of 261 patients, of whom 87 (33.3%) developed PHFKP. In propensity score matching, 80 patients were each matched to a patient in the PHFKP or non-PHFKP group. After propensity score matching, a between-group comparison revealed that the PHFKP group had a longer LOS (+11 days) than the non-PHFKP group, and there were no differences in FIMm gain or FIMm effectiveness. The timing of PHFKP development and pain intensity were not related to the LOS.

DISCUSSION

Even after adjusting for confounders, the development of PHFKP was found to prolong LOS. Clinicians should be aware of possible LOS prolongation in hip fracture patients with PHFKP.

Clinical prediction rules for multi surfaces walking independence using the Berg Balance Scale or Mini-Balance Evaluation Systems Test in persons with stroke

BACKGROUND

A Clinical prediction rule (CPR) for determining multi surfaces walking independence in persons with stroke has not been established.

OBJECTIVES

To develop a CPR for determining multi surfaces walking independence in persons with stroke.

METHODS

This was a multicenter retrospective analysis of 419 persons with stroke. We developed a Berg Balance Scale (BBS)-model CPR combining the BBS, comfortable walking speed (CWS) and cognitive impairment, and a Mini-Balance Evaluation Systems Test (Mini-BESTest)-model CPR combining the Mini-BESTest, CWS, and cognitive impairment. A logistic regression analysis was conducted with multi surfaces walking independence as the dependent variable and each factor as an independent variable. The identified factors were scored (0, 1) based on reported cutoff values. The CPR's accuracy was verified by the area under the curve (AUC). We used a bootstrap method internal validation and calculated the CPR's posttest probability.

RESULTS

The logistic regression analysis showed that the BBS, CWS, and cognitive impairment were factors in the BBS model, and the Mini-BESTest was a factor in the Mini-BESTest model. The CPRs were 0-3 points for the BBS model and 0-1 points for the Mini-BESTest model. The AUCs (bootstrap mean AUC) of the CPR score were 0.89 (0.90) for the BBS model and 0.72 (0.72) for the Mini-BESTest model. The negative predictive value (negative likelihood ratio) was 97% (0.054) for CPR scores < 2 for the BBS model and 94% (0.060) for CPR scores < 1 for the Mini-BESTest model.

CONCLUSIONS

The CPR developed herein is useful for determining multi surfaces walking independence.

Item distribution of the Berg Balance Scale in older adults with Hip fracture: a Rasch analysis

INTRODUCTION

Balance impairment occurs after a hip fracture, but the characteristics of the impairment are not clear.

OBJECTIVE

To investigate the uni-dimensionality, fit statistics, and item difficulty of the Berg Balance Scale (BBS) in older adults with hip fracture by conducting a Rasch analysis.

METHODS

This was an observational cross-sectional study. The 254 participants were all ≥ 65 years old and had been hospitalized for rehabilitation after a unilateral hip fracture incurred during a fall. We collected their BBS scores at the time of hospital discharge and conducted a Rasch analysis to examine the uni-dimensionality, fit statistics, and item difficulty.

RESULTS

The principal component analysis (PCA) of the Rasch model demonstrated that the BBS is uni-dimensional. The information-weighted mean square (MnSq) fit statistic was within the range of fit criteria for all items. The underfit item of the outlier-sensitive MnSq fit statistics was "Standing unsupported eyes closed" with the MnSq of 2.06. The difficult items were in order of logits: "Standing on one leg" (logits = 4.01); "Step tool" (logits = 2.74); and "Turn 360°" (logits = 2.61).

CONCLUSION

The BBS is uni-dimensional and conforms with the Rasch model. The BBS most difficult items for older adults with a hip fracture required one-legged support and dynamic balance.

Rasch analysis of the Short Physical Performance Battery in older inpatients with heart failure

PURPOSE

The physical function of older patients with heart failure (HF) is likely to decline, and the Short Physical Performance Battery (SPPB) is widely used for its evaluation. No study has analyzed the SPPB by using Rasch model in these patients. The aim of this study was to examine the structural validity and item response of the SPPB in older inpatients with HF.

MATERIALS AND METHODS

In this multicenter cross-sectional study, we investigated 106 older inpatients with HF. We evaluated the SPPB's rating scale structure, unidimensionality, and measurement accuracy (0 = poor performance to 4 = normal performance).

RESULTS

The SPPB rating scale fulfilled the category functioning criteria. All items fit the underlying scale construct. The SPPB demonstrated adequate reliability (person reliability = 0.81) and separated persons into four strata: those with very low, low, moderate, and high physical performance. Item-difficulty measures were -0.59 to 0.96 logits, and regarding the person ability-item difficulty matching for the SPPB, the item was somewhat easy (the mean of person ability = 0.89 logits; mean of item difficulty = 0.00).

CONCLUSION

The SPPB has strong measurement properties and is an appropriate scale for quantitatively evaluating physical function in older patients with HF.

Clinical Prediction Models for Nonmortality Outcomes in Older Adults With Hip Fractures: A Systematic Review

BACKGROUND

Several hip fracture clinical prediction models have been developed. We conducted this study to (i) map outcomes used in clinical prediction models for hip fracture, (ii) identify the domains and instruments of predictors, and (iii) assess the risk of bias.

METHODS

We performed systematic searches of studies published from June 2002 to June 2023 in the PubMed, Cochrane Library, CINAHL, CiNii, and Ichushi databases. After the relevant articles were identified, we performed the data extraction and bias risk assessment. We used the Prediction Study Risk Of Bias Assessment Tool (PROBAST) to assess each study's risk of bias. Outcome mapping was performed for the core outcome set of hip fractures. Qualitative synthesis and the PROBAST evaluation were performed on other-than-mortality core outcomes, which are difficult to target in rehabilitation.

RESULTS

We screened 3 206 studies for eligibility; 45 studies were included in the outcome mapping, and 10 studies were included in the qualitative synthesis. Outcomes included mortality (n = 35), mobility (n = 8), and activities of daily living (n = 2). No clinical prediction models had pain or health-related quality of life as an outcome. Predictors were reported in 8 domains and 38 measures. The PROBAST evaluation showed a high risk of bias in all 10 studies that were eligible for a qualitative synthesis.

CONCLUSIONS

The clinical prediction models had only mortality, mobility, and activities of daily living as outcomes. The development of clinical prediction models with pain and health-related quality of life as outcomes is necessary. Clinical prediction models overcoming the risk of bias identified in this study are also needed.

Motor imagery ability in baseball players with throwing yips

The motor imagery ability is closely related to an individual's motor performance in sports. However, whether motor imagery ability is diminished in athletes with yips, in whom motor performance is impaired, is unclear. Therefore, this cross-sectional study aimed to determine whether general motor imagery ability or vividness of motor imagery specific to throwing motion is impaired in baseball players with throwing yips. The study enrolled 114 college baseball players. They were classified into three groups: 33 players in the yips group, 26 in the recovered group (previously had yips symptoms but had resolved them), and 55 in the control group. They answered the revised version of the vividness of movement imagery questionnaire (VMIQ-2), which assesses general motor imagery ability. Furthermore, they completed a questionnaire that assesses both positive and negative motor imagery vividness specific to baseball throwing. In the former, they responded to their ability to vividly imagine accurately throwing a controlled ball, whereas in the latter, they responded to the vividness of their experience of negative motor imagery associated with baseball throwing, specifically the image of a wild throw. No significant difference in the VMIQ-2 was found among the three groups. While no significant difference in the vividness of positive motor imagery for ball throwing was found in either first-person visual or kinesthetic perspectives among the three groups, the yips group exhibited significantly higher vividness of negative motor imagery than the control group in both perspectives. These results indicate that negative motor imagery specific to baseball throwing may be associated with symptoms of yips. Therefore, interventions addressing psychological aspects, such as anxiety, which are potential causes of the generation of negative motor imagery, may be necessary to alleviate the symptoms of yips.

Verification of the minimal clinically important difference of the Capabilities of Upper Extremity Test in patients with subacute spinal cord injury

CONTEXT

The number of patients with cervical spinal cord injury (CSCI) is increasing, and the Capabilities of Upper Extremity Test (CUE-T) is recommended for introduction in clinical trials. We calculated the minimal clinically important difference (MCID) of the CUE-T using an adjustment model with an interval of 1 month.

DESIGN

This was a prospective study.

SETTING

This study was conducted with participants from the Chiba Rehabilitation Center in Japan.

PARTICIPANTS

The participants were patients with subacute CSCI.

INTERVENTIONS

The CUE-T and spinal cord independence measure (SCIM) III were performed twice within an interval of 1 month.

OUTCOME MEASURES

The MCID was calculated using an adjustment model based on logistic regression analysis. The participants were classified into an improvement group and a non-improvement group based on the amount of change in the two evaluations using the 10-point SCIM III MCID as an anchor.

RESULTS

There were 52 participants (56.8 ± 13.5 years old, 45 men/7 women) with complete or incomplete CSCI: 18 in the improvement group and 34 in the non-improvement group. A significant regression equation was obtained when calculating the MCID, and the total, hand, and side scores were 7.7, 2.0, and 3.7 points, respectively.

CONCLUSION

The calculated MCID of the CUE-T in this study was 7.7 points. The results of this study provide useful criteria for implementation in clinical trials. Future studies should use patient-reported outcomes, a more recommended anchor, and calculate the MCID using methods such as the patient's condition.

Minimal important change in the Berg Balance Scale in older women with vertebral compression fractures: A retrospective multicenter study

BACKGROUND

Vertebral compression fractures, which are commonly associated with older age and osteoporotic fractures, have an increased risk of re-fracture. Therefore, improving balance is important to prevent falls. The minimal important change (MIC) has been recommended for interpreting clinically meaningful changes in rating scales. The MIC of the Berg Balance Scale (BBS) for use in older women with vertebral compression fractures has not been established.

OBJECTIVE

To identify the MIC of the BBS that can be used in older women with vertebral compression fractures using predictive modeling methods and the receiver-operating characteristic (ROC)-based method.

DESIGN

A retrospective longitudinal multicenter study.

PATIENTS

Sixty older women (mean age ± standard deviation: 84.1 ± 7.0 years) with vertebral compression fractures who were unable to ambulate independently on a level surface.

METHODS

A change of one point in the Functional Ambulation Category (FAC) was used as an anchor to calculate the MIC of the BBS based on the change between admission and discharge. We calculated the MIC for the women whose FAC score improved by ≥1 point. We used three anchor-based methods to examine the MIC: the ROC-based method (MICROC ), the predictive modeling method (MICpred ), and the MICpred -based method adjusted by the rate of improvement and reliability of transition (MICadj ).

RESULTS

Thirty-nine women comprised the "important change" group based on their FAC score improvement. In this group, the MICROC (95% confidence interval [CI]) value of the BBS was 10.0 points (5.5-15.5), with an area under the curve of 0.71. The MICpred (95% CI) value was 9.7 (8.1-11.0), and the MICadj (95% CI) was 7.0 (5.5-8.5) points.

CONCLUSION

For women with vertebral compression fractures who are unable to ambulate independently, a 7.0-point improvement in the BBS score may be a useful indicator for reducing the amount of assistance required for walking.

Structural validity of the Trunk Assessment Scale for Spinal Cord Injury (TASS) with Rasch analysis for individuals with spinal cord disorders

OBJECTIVE

To confirm the structural validity of the Trunk Assessment Scale for Spinal Cord Injury (TASS).

PARTICIPANTS AND METHODS

We evaluated 104 Japanese individuals with a spinal cord injury (SCI) (age 63.5 ± 12.2 years; 64 with tetraplegia) with the TASS 1-3 times. We conducted a Rasch analysis to assess the TASS' unidimensionality, fit statistics, category probability curve, ceiling/floor effects, local independence, reliability, and difference item function (DIF).

RESULTS

The TASS was observed to be a unidimensional and highly reproducible scale of item difficulty hierarchy that sufficiently identifies the superiority of the examinee's ability. The TASS was easy for the participants of this study. One TASS item was a misfit based on the infit and outfit mean square; another item also showed a DIF contrast for age. Several items were found to require a synthesis or modification of the content. The TASS showed a floor effect, and most of the non-scorers were individuals with a complete SCI.

CONCLUSION

Our findings clarify the structural validity of the TASS, and our analyses revealed that the TASS includes an unfitness item and was less challenging for individuals with SCIs. The improvements suggested by these results provide important information for modifying the TASS to a more useful instrument.

Validity of the trunk assessment scale for spinal cord injury (TASS) and the trunk control test in individuals with spinal cord injury

BACKGROUND

The Trunk Assessment Scale for Spinal Cord Injury (TASS) and the Trunk Control Test for individuals with a Spinal Cord Injury (TCT-SCI) are highly reliable assessment tools for evaluating the trunk function of individuals with SCIs. However, the potential differences in the validity of these two scales are unclear.

OBJECTIVES

To evaluate the criterion validity of the TASS and the construct validity of the TASS and TCT-SCI.

PARTICIPANTS AND METHODS

We evaluated 30 individuals with SCIs (age 63.8 ± 10.7 yrs, 17 with tetraplegia). To evaluate criterion validity, we calculated Spearman's rho between the TASS and the gold standard (the TCT-SCI). To determine construct validity, we used the following hypothesis testing approaches: (i) calculating Spearman's rho between each scale and the upper and lower extremity motor scores (UEMS, LEMS), the Walking Index for SCI-II (WISCI-II), and the motor score of the Functional Independence Measure (mFIM); and (ii) determining the cut-off point for identifying ambulators with SCIs (≥ 3 points on item 12 of Spinal Cord Independent Measure III) by a receiver operating characteristics analysis.

RESULTS

A moderate correlation was confirmed between the TASS and the TCT-SCI (r = 0.68). Construct validity was supported by six of the eight prior hypotheses. The cut-off points for identifying ambulators with SCIs were 26 points (TASS) and 18 points (TCT-SCI).

CONCLUSION

Our results indicate that the contents of the TASS and the TCT-SCI might reflect the epidemiological characteristics of the populations in which they were developed.

Minimal clinically important difference in 6-minute walk distance estimated by multiple methods in inpatients with subacute cardiovascular disease

BACKGROUND

Identifying the minimal clinically important difference (MCID) contributes to the ability to determine the efficacy of physiotherapy interventions and make good clinical decisions.

PURPOSE

The purpose of this study was to estimate the MCID for 6-minute walking distance (6MWD) among inpatients with subacute cardiac disease using multiple anchor-based methods.

METHODS

This study was a secondary data analysis using only data from a multicenter longitudinal observational study in which 6MWD was measured at two time points. Based on the changes in 6MWD between baseline measurement and follow-up approximately 1 week after baseline measurement, the global rating of change scales (GRCs) of patients and physiotherapists, anchor method receiver operator operating characteristic curves, predictive models, and adjusted models were used to calculate the MCID.

RESULTS

Participants comprised 35 patients. Mean (standard deviation) 6MWD was 228.9 m (121.1 m) at baseline and 270.1 m (125.0 m) at follow-up. MCID for each GRC was 27.5-35.6 m for patients and 32.5-38.6 m for physiotherapists.

CONCLUSION

The MCID in 6MWD in patients with subacute cardiovascular disease is 27.5-38.6 m. This value may be useful in determining the effectiveness of physiotherapy interventions and for decision-making.

Prognostic models of quality of life after total knee replacement: A systematic review

OBJECTIVE

To systematically review and critically appraise prognostic models for quality of life (QOL) in patients with total knee replacement (TKA).

METHODS

Subjects were TKA recipients recruited from inpatient postoperative settings. Searches were made on June 2022 and updated on April 2023. Databases included PubMed.gov, CINAHL, The Cochrane Library, Web of Science. Two authors performed all review stages independently. Risk of bias assessments on participants, predictors, outcomes and analysis methods followed the Prediction study Risk Of Bias ASsessment Tool (PROBAST).

RESULTS

After screening 2204 studies, 9 were eligible for inclusion. Twelve prognostic models were reported, of which 10 models were developed from data without validation and 2 were both developed and validated. The most frequently applied predictor was the pre-TKA QOL score. Discriminatory measures were reported for 9 (75.0%) models with areas under the curve values of 0.66-0.95. All models showed a high risk of bias, mostly due to limitations in statistical methods and outcome assessments.

CONCLUSION

Several prognostic models have been developed for QOL in patients with TKA, but all models show a high risk of bias and are unreliable in clinical practice. Future, prognostic models overcoming the risk of bias identified in this study are needed.

Minimal clinically important difference of the short physical performance battery and comfortable walking speed in old-old adults with acute cardiovascular disease: a multicenter, prospective, observational study

PURPOSE

The physical function of older adults age ≥ 75 years hospitalized for cardiovascular disease (CVD) often decrease. The Minimal Clinically Important Difference (MCID) is the smallest clinically meaningful difference due to therapy. The Short Physical Performance Battery (SPPB) and Comfortable Walking Speed (CWS) are physical function evaluations commonly used in people with CVD. This study aims to clarify the MCIDs of the SPPB and CWS in old-old adult with CVD.

MATERIALS AND METHODS

This was a multicenter, prospective study of 58 old-old adults with acute CVD and rehabilitation. The MCID was estimated using the participants' and physical therapists' (PT) Global Rating of Change (GRC) scales as anchors for changes in the SPPB and CWS. The area under the curve (AUC) was used to measure the discrimination accuracy.

RESULTS

The MCID of SPPB was 3 points when the GRC from PT was used as an anchor (AUC = 0.70). The MCID of CWS was 0.10 m/s when the GRC from participants and PT were used as anchors (AUC = 0.70 and 0.73, respectively).

CONCLUSIONS

The MCID of 3 SPPB points and 0.10 m/s CWS in old-old adults with acute CVD may help determine the effectiveness of therapy and improve prognosis.Implications for rehabilitationFor people with cardiovascular disease (CVD), the Short Physical Performance Battery (SPPB) and comfortable walking speed (CWS) are often used to measure physical function.The MCID of SPPB and CWS was estimated to be 3 points and 0.10 m/s, respectively, in older adults with CVD aged ≥75 years.This finding is useful for clinicians to evaluate the efficacy of cardiac rehabilitation.

White matter hyperintensity predicts independent walking function at 6 months after stroke: A retrospective cohort study

BACKGROUND

White matter hyperintensity (WMH) is reported to have a potential prevalence in healthy people and is a predictor of walking disability. However, WMH has not been adequately considered as a predictor of independent walking after stroke.

OBJECTIVE

To investigate the effects of WMH severity on walking function in patients with acute stroke.

METHODS

The retrospective cohort study included 422 patients with acute stroke. The WMH severity from magnetic resonance images was evaluated using the Fazekas scale. Age, type of stroke, Fazekas scale, Brunnstrom motor recovery stage, Motricity Index, and Mini-Mental State Examination were used as independent variables. Multivariable logistic regression analysis was conducted on the factors of independent walking at discharge and 6 months after onset, respectively.

RESULTS

Multivariable analysis revealed that the Fazekas scale is not a predictive factor of independent walking at discharge (odds ratio [OR] = 0.89, 95% confidence intervals [CI] = 0.65-1.22), but at 6 months (OR = 0.54, 95% CI = 0.34-0.86).

CONCLUSION

The WMH severity was a predictive factor of independent walking in patients with acute stroke after 6 months. WMH is a factor that should be considered to improve the accuracy of predicting long-term walking function in patients with stroke.

The minimal clinically important difference of the mini-balance evaluation systems test in patients with early subacute stroke

BACKGROUND

There is insufficient evidence regarding the minimal clinically important difference (MCID) of the Mini-Balance Evaluation Systems Test (Mini-BESTest).

OBJECTIVE

To determine the MCID of the Mini-BESTest in patients with early subacute stroke.

PATIENTS AND METHODS

In this prospective cohort study, the Mini-BESTest score of 50 patients with stroke was obtained within 1 week of their admission, their Mini-BESTest and Global Rating of Change Scale (GRCS) scores were obtained at discharge. The GRCS scores were reported by both the patients and their physical therapists. We evaluated the correlation between the Mini-BESTest change scores and the GRCS by determining Spearman's rank correlation coefficient. The MCID was calculated using 0.5× standard deviation (SD) for the distribution method and the change difference and receiver operating curve (ROC) for the anchor method.

RESULTS

The mean (SD) number of days between evaluations was 15.4 (4.8), and the Mini-BESTest score at admission was 17.7 (5.2) and 23.1 (3.5) at discharge. The correlation between the GRCS and the change in the Mini-BESTest score was 0.28 (p = .04) for the patients and 0.54 (p < .001) for the therapists. The MCID based on the distribution method was 3 points for 0.5× SD. The MCID values based on the anchor method were 2.3 for the change difference and 0.5 for the ROC in the patient-rated GRCS, and 4.2 for the change difference and 4.5 for the ROC in the physical therapist-rated GRCS.

CONCLUSIONS

The MCID based on the anchor method was 4.2-4.5 points, and the MCID based on the distribution method was 2.3 points.

Relationship between the characteristics of lower extremity function and activities of daily living in hospitalized middle-aged and older adults with subacute cardiovascular disease

[Purpose] To clarify the relationship between lower extremity function and activities of daily living and characterize lower extremity function in hospitalized middle-aged and older adults with subacute cardiovascular disease. [Participants and Methods] The Short Physical Performance Battery, 6-minute walk distance, and functional independence measure tests were conducted in 79 inpatients with subacute cardiovascular disease (mean age, 76.7 ± 11.9 years; 34 females). Multiple regression analysis used the functional independence measure score as the dependent variable and the Short Physical Performance Battery and 6-minute walk distance scores as independent variables. Cross-tabulations were performed for each age group, and patients who performed the Short Physical Performance Battery and 6-minute walk distance tests were divided into two groups by their respective cutoff values. [Results] Only the Short Physical Performance Battery (β=0.568) and 6-minute walk distance (β=0.479) scores were adopted as significant independent variables in each multiple regression model. The age <75 years group had the most patients with both good lower extremity function and aerobic capacity, whereas the age ≥75 years group had the most patients with both functions impaired. [Conclusion] Although cardiovascular disease is generally associated with decreased aerobic capacity, many older patients with cardiovascular disease in this study had decreased lower extremity function, too.

A comparison between the shoulder shifting test and seated reaching test by bland-altman plot: A pilot study

BACKGROUND

The Seated Reach Test (SRT) is an assessment tool for evaluating the sitting balance of individuals with a spinal cord injury (SCI). We developed the Shoulder Shifting Test (SST), which is a tool for measuring the reaching distance of individuals with difficulty in raising their arms, such as individuals with tetraplegia.

OBJECTIVE

To investigate the agreement between the SST and the SRT and the usefulness of the SST.

SUBJECTS AND METHODS

Sixteen subjects with SCI (age 52.9 ± 13.0 yrs; four with tetraplegia) performed the SST and the SRT. We determined the correlation coefficient to determine the relationship between the two tests. A Bland-Altman analysis was performed to confirm the systematic error, and the relative error (RE) was used to determine the compatibility of the two tests in three directions (front, right, left). We assessed the SST's usefulness by determining how many of 47 subjects (age 59.6 ± 13.6 yrs; 23 with tetraplegia) could not perform the SRT and how many could perform the SST.

RESULTS

The tests were strongly correlated. No systematic errors between the tests were observed. In all three directions, >75% of the subjects had an RE <20%. Eleven of the 47 subjects with SCI were unable to perform either test. Four to ten of the 36 subjects performed the SST due to the difficulty in raising their arms.

CONCLUSION

The SST was compatible with the SRT, and the sitting balance of more individuals with SCI could be assessed by the combination of these tests.

Quantitative assessment of the course of distal radioulnar joint instability

Introduction

There is a lack of methods to objectively evaluate improvement in distal radioulnar joint (DRUJ) instability through treatment. We used ultrasonography to assess DRUJ instability and calculated the minimal detectable change (MDC) in healthy individuals. MDC was used to evaluate post-treatment changes in a patient with triangular fibrocartilage complex (TFCC) injury.

Methods

DRUJ instability was evaluated using force-monitor ultrasonography in eight healthy male participants to determine MDC and in a man in his 60s who underwent surgery and rehabilitation for TFCC injury (Palmer classification: type 2C). In the patient, DRUJ instability was measured pre-operatively, 3 months postoperatively, and 1 year post-operatively. Self-reported hand and upper limb functional ability were also recorded. The transducer of the force-monitor ultrasonographic system was used to apply cyclic compressions to the wrists automatically and measure DRUJ displacements. The amount of displacement was calculated using the distance between the radius and ulna before and during cyclic compression to the wrists. The applied pressure was measured as the force to the wrist, and the displacement-to-force ratio was calculated.

Results

The 95% confidence MDC95 for radioulnar displacement, displacement force, and displacement-to-force ratio were 0.27-0.31 mm, 0.30-0.59 N, and 0.12-0.15 mm/N, respectively. The patient's post-operative decrease in displacement exceeded the MDC95. DRUJ stability, pain, and use of the affected hand in daily life improved.

Discussion

Force-monitor ultrasonography can quantitatively evaluate post-treatment improvement in DRUJ stability over time. MDC for DRUJ instability can assess recovery after treatment or rehabilitation and determine changes resulting from interventions.

Sleep Should Be Focused on When Analyzing Physical Activity in Hospitalized Older Adults after Trunk and Lower Extremity Fractures-A Pilot Study

Although the importance of resting in bed for hospitalized older adults is known, current methods of interpreting physical activity (PA) recommend the use of a broad definition of sedentary behavior (SB) that includes 0−1.5 metabolic equivalents (METs) of sleep (SL) and sitting. We investigated the characteristics of PA by conducting a cross-sectional study of 25 older adults with trunk and lower extremity fractures. The intensity of their PA was interpreted as SL (0−0.9 METs), SB (1−1.5 METs), low-intensity PA (LIPA: 1.6−2.9 METs), and moderate-to-vigorous PA (MVPA: >3.0 METs). We calculated the correlation coefficients to clarify the relationship between each PA intensity level. Our analyses revealed that the PA time (min/day) was accounted for by SB (53.5%), SL (23.2%), LIPA (22.8%), and MVPA (0.5%). We observed negative correlations between SL and SB (r  =  −0.837) and between SL and LIPA (r  =  −0.705), and positive correlations between SB and LIPA (r  =  0.346) and between LIPA and MVPA (r  =  0.429). SL and SB were also found to have different trends in relation to physical function. These results indicate that SL and SB are trade-offs for PA during the day. Separate interpretations of the SL and SB of older hospitalized adults are thus recommended.

Effectiveness of a case-based digital learning interprofessional workshop involving undergraduates in medical technology, radiological science, and physical therapy: A pre–post intervention study

All healthcare professionals must understand information on a patient’s biophysical functions, and it is important to educate professionals on how to use this information in an interprofessional team for diagnosis. However, there is little interprofessional education for students of medical technology and radiological science involved in biophysical function diagnosis. In the present study, we developed a case-based interprofessional learning tool for using biophysical information for diagnosis. The study examined the effects of a collaborative exercise workshop for healthcare professional students using the tool. Participants were 234 students from three healthcare professions (medical technology, radiological science, and physical therapy). They completed the Japanese version of the Readiness for Interprofessional Learning Scale before and after the workshops. The workshops incorporated digital materials that allowed students to examine the test results of a virtual patient, answer questions, and discuss their diagnoses and prognoses. For analysis, a two-way analysis of variance was performed on the total score on the Readiness for Interprofessional Learning Scale of the three departments, and the effectiveness of the workshop for the three departments was compared. Statistical analyses showed no interaction between time and department (p = 0.283). After the workshop, students from all three departments showed significant improvements in total scores on the Readiness for Interprofessional Learning Scale (p < 0.01) with medium to large effect sizes (r = 0.33–0.52). In the comparison between departments, there was a significant difference in the awareness levels of only medical technology and radiological science students before the workshop (p = 0.015). This study conducted case-based learning workshops with students from three departments, in which a patient’s biophysical information was conveyed between occupational practices. The workshops improved the awareness of interprofessional education in students from all departments and revealed that interprofessional education is important for healthcare professions involved in biophysical function diagnosis.

Responsiveness and minimal clinically important differences of the Trunk Assessment Scale for Spinal Cord injury (TASS)

OBJECTIVE

To confirm the responsiveness and minimal clinically important differences (MCIDs) of the Trunk Assessment Scale for Spinal Cord Injury (TASS).

PARTICIPANTS AND METHODS

We evaluated 48 Japanese individuals with spinal cord injury (SCI) (age 64.1 ± 10.4 yrs, 28 with tetraplegia) admitted to two institutions at admission, at 1 month of hospitalization, and at discharge with the TASS, the Trunk Control Test in individuals with an SCI (TCT-SCI) motor score, the Functional Independence Measure motor score (mFIM), and the Global Rating of Change Scale (GRCS). We assessed the TASS responsiveness by determining the correlation coefficients for the changes in the TASS' and other assessments' scores. We calculated the MCIDs by five anchor-based methods.

RESULTS

The changes in the TASS and those in the other assessments were weakly correlated at 1 month and moderately correlated at discharge. The TASS MCIDs were observed at 1 month and at discharge.

CONCLUSION

Our findings confirmed that the change in TASS scores had weak-to-moderate correlations with the changes in the participants' upper- and lower-limb function and activities of daily living. Using the MCID for the TASS determined by anchor-based methods may lead to a better interpretation of changes in the trunk function of individuals with SCIs.

Minimal clinically important difference of the Berg Balance Scale and comfortable walking speed in patients with acute stroke: A multicenter, prospective, longitudinal study

OBJECTIVE

To determine the minimal clinically important difference between the Berg Balance Scale and comfortable walking speed in acute-phase stroke patients.

DESIGN

Multicenter, prospective, longitudinal study.

SETTING

Inpatient acute stroke rehabilitation.

SUBJECTS

Seventy-five patients with acute stroke, mean (SD) age 71.7 (12.2) years.

INTERVENTION

Inpatients with acute stroke were assessed with the Berg Balance Scale and comfortable walking speed before and after rehabilitation. Physiotherapy was conducted to improve balance and gait over a 2-week period: an average of 40 min/day on weekdays and 20 min/day on weekends and holidays.

MAIN MEASURES

The patients' Berg Balance Scale, comfortable walking speed, Global Rating of Change scale (patient-rated and physiotherapist-rated), and motor score of the Functional Independence Measure were obtained. Minimal clinically important differences were estimated using both anchor- (receiver operating characteristic curves and change difference) and distribution-based approaches (minimal detectable change and 0.5× the change score [SD]).

RESULTS

The baseline scores were 31.2 (18.9) for the Berg Balance Scale and 0.79 (0.35) m/s for comfortable walking speed. The minimal clinically important difference in the Berg Balance Scale was 6.5-12.5 points by the anchor-based approach and 2.3-4.9 points by the distribution-based approach. The minimal clinically important difference in comfortable walking speed was 0.18-0.25 m/s by the anchor-based and 0.13-0.15 m/s by the distribution-based approach.

CONCLUSIONS

A change of 6.5-12.5 points in the Berg Balance Scale and 0.18-0.25 m/s in the comfortable walking speed is required in these measurements' anchor-based minimal clinically important differences to be beyond measurement error, and to be perceptible by both patients and clinicians.

Rasch Validation and Comparison of the Mini-BESTest and S-BESTest in Individuals With Stroke

OBJECTIVE

The purpose of this study was to compare the psychometric properties of the Mini-Balance Evaluation Systems Test (Mini-BESTest) and S-BESTest and to evaluate which is more suitable for use in clinical settings for individuals with stroke.

METHODS

This multicenter retrospective cross-sectional study investigated 115 individuals with stroke (mean age, 70.8 y [SD = 11.2 y]) who were able to stand without physical assistance. All individuals were examined with the BESTest and with the Mini-BESTest and S-BESTest scored based on the BESTest results. The data were analyzed using a Rasch analysis (partial credit model).

RESULTS

The Mini-BESTest results revealed a correctly functioning rating scale, good fit of the data to the model (apart from 1 overfit item), good reliability for both persons and items (6 statistically detectable levels of balance ability), local dependence between 1 item pair, and essential unidimensionality. The S-BESTest results demonstrated disordered rating scale thresholds (1 response option required collapsing), good fit of the data to the model (apart from 1 underfit item), good reliability for both persons and items (5 statistically detectable levels of balance ability), local dependence between 2 item pairs, and essential unidimensionality.

CONCLUSION

The analyses confirmed that the reliability of the S-BESTest was good and unidimensional and that the test provides several improved points, such as item redundancy and local independence of items. Nevertheless, the Mini-BESTest results supported previous findings as a whole and were better than those from the S-BESTest.

IMPACT

Rasch analysis demonstrated that the Mini-BESTest was a better balance assessment scale than the S-BESTest for individuals with stroke based on its psychometric properties. The Mini-BESTest may serve as a useful scale for assessing balance in individuals with stroke, and a keyform plot and strata may help clinical decision-making in terms of interpreting scores and goal setting.

Reliability and minimal detectable change of the Trunk Assessment Scale for Spinal Cord Injury (TASS) and the trunk control test for individuals with spinal cord injury

STUDY DESIGN

Cross-sectional study.

OBJECTIVES

To evaluate the reliability and calculate the measurement error of the Trunk Assessment Scale for Spinal Cord Injury (TASS) and trunk control test (TCT-SCI) in individuals with spinal cord injury (SCI).

SETTING

Rehabilitation Hospital in Japan.

METHODS

The evaluations of TASS and TCT-SCI for individuals with SCI were video-recorded. The inter-rater reliability (two physiotherapists) was confirmed using the videos. ICC (2,1), kappa coefficient (κ) were used to determine the reliability of the total score and each item. Each minimal detectable change (MDC) was calculated.

RESULTS

The TASS and TCT-SCI total scores showed excellent inter-rater reliability (ICC = 0.99, and 1.00). The kappa coefficients of TASS were acceptable to excellent for 8 items (κ = 0.76-1.00), below acceptable for 1 item (κ = 0.62). The kappa coefficients of TCT-SCI were excellent for 12 items (κ = 0.83-1.00), below acceptable for 1 item (κ = 0.68). The inter-rater MDC of the TASS total score was 4.07 points, and the MDC of the TCT-SCI total score was 1.13 points. The intra-rater MDC of the TASS total score was 3.86 points.

CONCLUSION

Both TASS and TCT-SCI showed high reliability. Differences of less than four points in TASS and one point in TCT-SCI were interpreted as measurement errors between the two raters.

Predictors of post-hip fracture knee pain in hospitalized older adults with intertrochanteric femoral fracture

BACKGROUND

Post-hip fracture knee pain (PHFKP) is an important issue that contributes to reduced gait speed and prolonged hospitalization. Femoral morphology has been reported to contribute to the development of PHFKP, but an independent association has not been confirmed and clinically applicable cutoffs for predicting the development of PHFKP remain unclear.

OBJECTIVE

To determine whether femoral morphology and knee extension range of motion limitation are independent factors in PHFKP and to determine cutoffs for predicting the development of PHFKP.

DESIGN

Retrospective chart review study.

SETTING

Convalescent inpatient rehabilitation hospital.

PARTICIPANTS

Patients in a convalescent ward after intertrochanteric femoral fracture surgery.

MAIN OUTCOME MEASURES

PHFKP development, radiographic femoral morphology (leg length discrepancy and neck-shaft angle), and knee extension range of motion limitation.

RESULTS

PHFKP developed in 36 (35%) of the 103 patients enrolled. The PHFKP group had a longer hospital stay (p = .029), greater weight (p = .031), greater knee extension range of motion limitation (p = .001), and more varus neck-shaft angle (p < .001) compared to the non-PHFKP group. Varus neck-shaft angle (odds ratio, 0.85; 95% confidence interval [CI], 0.78-0.92; p < .001) and knee extension range of motion limitation (odds ratio, 1.18; 95% CI, 1.07-1.30; p = .001) were significant factors for PHFKP development. Neck-shaft angle discrepancy and knee extension range of motion limitation demonstrated moderate accuracy in discriminating development of PHFKP according to receiver operating characteristic analysis, with cutoffs of 9.6° and 7.5°, respectively. Areas under the receiver operating characteristic curve were 0.77 (95% CI, 0.66-0.88; p < .001) for neck-shaft angle discrepancy and 0.67 (95% CI, 0.56-0.79; p = .004) for knee extension range of motion limitation.

CONCLUSIONS

Varus neck-shaft angle and knee extension range of motion limitation were identified as independent predictors of PHFKP. The cutoff for neck-shaft angle may be useful for predicting PHFKP development and to define an acceptable angle of fracture reduction to prevent PHFKP.

Measurement of physical activity and prevention of physical inactivity/sedentary behaviors in patients with septic knee arthritis before and after hospital discharge: A case report

BACKGROUND

Patients with septic knee arthritis tend to have prolonged pain, which may lead to a decrease in physical activity (PA). Pain catastrophizing, which is associated with chronic pain, is known to be a limiting factor for PA. An objective measurement of PA in patients with septic knee arthritis has not been reported. Here we describe the accelerometry-based measurement of the PA of a patient with septic knee arthritis before and after discharge, and we report the ability of follow-up outpatient physical therapy to increase PA.

METHODS

A 70-year-old Japanese woman admitted to the hospital with a diagnosis of left septic knee arthritis presented with prolonged pain and pain catastrophizing in the left knee. We investigated her pre- and post-discharge PA by using an accelerometer. We also investigated her physical function, pain, and pain catastrophizing as a possible influence on PA. Follow-up outpatient physical therapy (consisting of PA feedback, counseling, and reassurance) was performed to improve the patient's physical function and increase her PA.

RESULTS

The patient's PA indicated general inactivity from pre-discharge to 1 month post-discharge, especially immediately post-discharge (sedentary behavior [SB]: 540-571.3 min/daytime, light-intensity PA: 145.8-177.8 min/daytime). The follow-up outpatient physical therapy was effective in increasing her physical function and PA (a 31-min decrease in SB, a 32-min increase in light-intensity PA) but was not effective in reducing her pain or pain catastrophizing.

DISCUSSION

Contrary to the general trend, this patient showed a decrease in PA after hospital discharge compared to PA during hospitalization. Follow-up outpatient physical therapy had the effect of increasing the patient's PA, which was decreased immediately post-discharge.

Cut-off values and sub-items of the Berg Balance Scale for walking-aid use in hospitalized older adults with a hip fracture: a retrospective analysis

OBJECTIVE

To identify the Berg Balance Scale (BBS) values that can be used to discriminate the use of a walking aid and the BBS sub-items that reveal the differences in the use of walking aids among hospitalized older adults with a hip fracture.

METHODS

The cases of 77 older adults (age 80.8 ± 7.5 years) with a hip fracture who were able to walk independently in the hospital were retrospectively analyzed. A receiver operating characteristic curve (AUC) analysis was used to identify BBS scores that optimized the identification of subjects with different levels of aids. The BBS sub-items identifying differing among the walking aids were identified by a classification and regression tree analysis.

RESULTS

The BBS scores were highest for no aid, a cane, and a walker, in that order. The ability to walk without an aid and the ability to walk without a walker showed moderate AUCs (0.824 and 0.865) with cutoff values of 51.5 and 45.5 points, respectively. The sub-items identified were Turning 360° (4 vs. < 4 points) as the best discriminator for using/not using a cane and Stool Stepping (≥ 2 vs. < 2 points) for using a cane or walker.

CONCLUSION

The BBS is useful for determining whether to discontinue the use of a walker in individuals with a hip fracture.

Sections of the Brief-Balance Evaluation Systems Test Relevant for Discriminating Fast Versus Slow Walking Speeds in Community-Dwelling Older Women

BACKGROUND AND PURPOSE

Walking speed can be used to identify characteristics of frailty in older adults. It has a strong positive correlation with balance abilities. The Brief-Balance Evaluation Systems Test (Brief-BESTest) was developed to assess functions of the 6 balance control systems in a short time. However, for community-dwelling older adults, the relationship between walking speed and the Brief-BESTest needs to be clarified. Even the cutoff scores for each Brief-BESTest section should be indicated for physical therapists to effectively evaluate balance deficits. Our objective was to establish cutoff scores for individual Brief-BESTest sections, determine fast or slow walkers in community-dwelling older adults, and investigate the relationship between balance control systems and walking speed.

METHODS

In a cross-sectional study involving 55 participants 77 years and older, the Brief-BESTest was evaluated after grouping the participants based on their walking speeds in public community centers. We compared the age, history of falls, handgrip strength, quadriceps strength, appendicular skeletal muscle mass index, comfortable walking speeds, and the Brief-BESTest scores between the fast- and slow-walking groups by using the independent t test, Fisher exact test, or Mann-Whitney U test. We also determined the receiver operating characteristic curves, and calculated the cutoff, area under the curve (AUC), sensitivity, and specificity of each section.

RESULTS

All sections of the Brief-BESTest, except Section 1 (Biomechanical Constraints) were able to differentiate between fast and slow walkers in community-dwelling older women. Section VI (Stability in Gait) showed the highest AUC (0.83) and the cutoff score for the fast- and slow-walker groups was 3.0 points (sensitivity = 0.85, specificity = 0.81). Sections III, IV, and V (Anticipatory, Reactive, and Sensory Orientation, respectively) had moderate AUC (0.71-0.72). Sections I and II (Stability Limits) showed weak correlations with the walking speed.

CONCLUSIONS

Three sections (III, anticipatory postural adjustments; IV, reactive postural responses; and VI, stability in gait) could differentiate between fast and slow walkers. Section VI was a particularly important balance function measurement that differentiated the walking speed with the highest accuracy. Therefore, it should be a primary focus when physical therapists treat community-dwelling older adults.

Development of Cut-off Values on the Berg Balance Scale for Predicting Walking Independence in Older Adults with Hip Fracture

Objectives:

The aim of the current study was to identify a cut-off value for predicting walking independence at discharge in older adults with hip fracture based on their Berg Balance Scale (BBS) score at admission to a convalescent rehabilitation ward.

Methods:

This was a retrospective, multicenter, observational study of 187 older adults with hip fractures (mean age 83.7, range 66–97 years). Data was collected on the patients’ age, sex, treatment, and physical function evaluation. An ordinal logistic regression analysis was used to identify predictors associated with the degree of independence in walking at discharge. Receiver operating characteristic curves were used to estimate cut-off values to predict independent and supervised walking at discharge based on the BBS score at admission. The accuracy of the classification was assessed using the area under the curve (AUC).

Results:

The BBS score at admission was a significant factor predicting the degree of walking independence at discharge (odds ratio = 1.09, 95%CI: 1.06–1.11). The cut-off values of the BBS score at admission for predicting independent walking and supervised walking at discharge were 28 points (AUC = 0.76, 95%CI: 0.69–0.83) and 21 points (AUC = 0.84, 95%CI: 0.77–0.91), respectively.

Conclusions:

The BBS scores of older adults with hip fracture on admission to a rehabilitation ward are useful for predicting the degree of independence in walking at discharge and can help to structure therapy according to the predicted degree of independence.

Influences of remote exercise training for community-dwelling older adults in Japan during the COVID-19 pandemic

[Purpose] The coronavirus disease (COVID-19) pandemic has caused sudden lifestyle changes. This study aimed to determine the limitations in activity and the influences of remote exercise training on community-dwelling older adults during a state of emergency in Japan. [Participants and Methods] In May 2020, during the COVID-19 state of emergency, we carried out a mail survey of community-dwelling older adults who had previously participated in a disability prevention program in Ami town, Ibaraki, Japan. The mail included a brochure on exercises and a DVD. The attached exercise program was comprised of 10 different exercises, which could be conducted in approximately 30 minutes. [Results] Of the 191 older adults, 73 responded to this survey (38.2%), of which 42 (58.5%) participants had decreased outdoor exercise activity, and 50 (68.5%) decreased the amount of time spent on physical activities during the COVID-19 state of emergency. There were significant reductions (19.2–22.5%) in the perceived exercise load for each posture after two weeks of remote exercise training with DVD (n=26). [Conclusion] Our results suggested that the remote exercise training with the brochure and DVD may be effective. Since this study involved a small number of participants, future studies should involve larger populations.

Which Balance Evaluation Systems Test sections best distinguish levels of post-stroke functional walking status?

Objective

To determine which sections of the Balance Evaluation Systems Test (BESTest) distinguish levels of post-stroke functional walking status and to establish their cut-off scores.

Design

A retrospective cross-sectional study.

Subjects and methods

The BESTest was administered to 87 stroke patients who were able to walk without physical assistance upon discharge from the hospital. Subjects were divided into 3 functional walking status groups: namely, household ambulators, limited community ambulators, and unlimited community ambulators. The receiver operating characteristic curve was determined and the cut-off score and area under the receiver operating characteristic curve (AUROC) of each section calculated.

Results

In the comparison of household and limited community ambulators, the accuracies of all BESTest sections were moderate (AUROC>0.7), and the cut-off scores were 36.1–78.6%. In the comparison of limited and unlimited community ambulators, one section (stability in gait) had high accuracy (AUROC=0.908, cut-off scores=73.8%) and 3 sections (biomechanical constraints, anticipatory postural adjustments, and postural response) had moderate accuracy (AUROC=0.812–0.834, cut-off scores=75.0–83.4%).

Conclusion

This study demonstrated that different sections of the BESTest had different abilities to discriminate levels of post-stroke functional walking status, and identified cut-off values for targeted improvement.

Difference in Personality Traits and Symptom Intensity According to the Trigger-Based Classification of Throwing Yips in Baseball Players

The triggers of initial onset of yips symptoms can be broadly divided into psychological and non-psychological factors; however, a trigger-based classification of yips has not been established. This study aims to obtain insight into the prevention of yips by clarifying whether there are differences in symptoms and personality traits according to a trigger-based classification of yips in baseball players. A total of 107 college baseball players responded to a questionnaire assessing the presence or absence of yips and its symptoms. They were classified into the psychologically triggered yips group, the non-psychologically triggered yips group, and the non-yips group based on the presence or absence of yips and the triggers of its initial onset. Additionally, we compared whether personality traits examined by the NEO Five-Factor Inventory differed across these three groups. The psychologically triggered yips group had significantly higher agreeableness scores compared with the non-yips group, whereas the non-psychologically triggered yips group had significantly higher neuroticism scores compared with the psychologically triggered yips group. In the non-psychologically triggered yips group, there was a significantly higher frequency of throwing errors than in the psychologically triggered yips group, with a tendency to develop yips symptoms gradually. Since the trigger-based classification of yips is closely related to the strength of the yips symptoms and the players' personality traits, the results of this study contribute to a better understanding of the symptoms of yips and establishment of the prevention of yips. Large prospective studies are necessary to determine the causal relationship between a trigger-based classification of yips and the personality traits and symptoms of athletes with yips.

Minimal clinically important difference of the Berg Balance Scale score in older adults with hip fractures

PURPOSE

The minimal clinically important difference (MCID) is the smallest clinically significant difference in treatment identified as crucial to the patient. There is no known MCID for the Berg Balance Scale (BBS), which measures balance function in patients with hip fractures. We aimed to calculate the MCID of the BBS in older adults with hip fractures.

MATERIALS AND METHODS

This is a retrospective multicenter clinical study that included 187 older adults with hip fractures. MCID was calculated using functional ambulation categories (FACs), which were used as anchors for the change in BBS scores between admission and discharge. MCID was calculated as an improvement for more than one point and as a substantial change for improvement for more than two points in the FAC.

RESULTS

MCID of the BBS was 11.5 points and that of the substantial change was 18.5 points, with an area under the curve of 0.76 and 0.81, respectively.

CONCLUSIONS

MCID for the BBS was 11.5 points in older adults with hip fractures. In addition, an improvement of more than 18.5 points in BBS can be considered a substantial change. These values may be useful in determining meaningful balance function improvement.Implications for rehabilitationHip fractures are a common injury for the older adults, and improvement in gait function has a bearing on prognosis.The effectiveness of meaningful rehabilitation is possible to determine by clarifying the minimal clinically important difference in balance function, which is important for the acquisition of gait.An improvement of 11.5 points or more on the Berg Balance Scale in an older adult with a hip fracture is considered a meaningful effect.

Inpatient knee pain after hip fracture surgery affects gait speed in older adults: A retrospective chart-referenced study

AIM

Post-hip fracture knee pain (PHFKP) develops in 28-37.4% of patients with hip fracture and contributes to prolonged hospitalization. Although reduced balance and gait speed contribute to falls, the effects of PHFKP remain unclear. This study aimed to clarify whether PHFKP is a factor in balance and gait speed.

METHODS

We retrospectively reviewed the medical records of patients after hip fracture. Development of PHFKP, basic information, and physical function were examined. Berg balance scale (BBS) and maximum walking speed (MWS) were collected at discharge. These parameters were compared with the presence or absence of PHFKP. In addition, multiple analyses were conducted with BBS and MWS as dependent variables and PHFKP as one of the independent variables.

RESULTS

Of the 146 patients enrolled, 43 (29.5%) developed PHFKP, and 37.2% of patients with PHFKP showed residual symptoms at discharge. Intensity of PHFKP was mostly mild to moderate. The PHFKP group showed an extended length of stay (+13.3 days) and a tendency toward more discharges to facilities compared with the control group. Knee extension range of motion limitation, knee extensor strength, and BBS did not differ between groups, while MWS was significantly lower in the PHFKP group (0.85 ± 0.32 m/s vs. 1.07 ± 0.39 m/s). Multiple analyses showed that development of PHFKP was not associated with BBS, but was associated with decreased MWS (standardized beta = -0.202, P = 0.005).

CONCLUSIONS

PHFKP was identified as an independent factor in gait speed decline. PHFKP patients should be monitored for reduced gait speed during rehabilitation. Geriatr Gerontol Int 2021; 21: 830-835.

Section of the Balance Evaluation Systems Test (BESTest) Cutoff Values for Walking Speed Level in Older Women With Hip Fracture

BACKGROUND AND PURPOSE

Hip fracture is a common injury in older adults, with a high proportion of hip fractures affecting women. After a hip fracture, the recovery of the patient's walking speed is very important; one of the key determinants of walking speed is balance. The Balance Evaluation Systems Test (BESTest), a clinical balance measure, categorizes balance into 6 postural control systems. However, the relationship between the walking speed level and the sections of the BESTest has not been explored for older women with hip fracture. Our objective was to establish section scores for the BESTest cutoff values for walking speed in older women with hip fracture.

METHODS

This was an observational study involving 46 older women 65 years or older with hip fracture. The BESTest was administered to all participants upon their discharge from the hospital. Participants were divided into groups on the basis of their walking speed levels, and receiver operating characteristic curves were determined for each section of the BESTest. We calculated the cutoff value, area under the curve (AUC), sensitivity, and specificity of each.

RESULTS

Section IV-Stability in Gait showed the highest AUC (0.92) compared with the other sections, and the cutoff value determined for the fast and slow walker groups was 64.3% (sensitivity = 0.82, specificity = 0.83). The sections with moderate AUC (0.7-0.9) were I-Biomechanical Constraints (cutoff = 70.0%), III-Anticipatory Postural Adjustments (cutoff = 66.5%), IV-Postural Responses (cutoff = 69.4%), and V-Sensory Orientation (cutoff = 83.4%). The sections with the highest sensitivity (0.82) were I-Biomechanical Constraints and VI-Stability in Gait, and that with the highest specificity (0.88) was II-Stability Limits and Verticality.

CONCLUSIONS

Five of the BESTest sections (I-Biomechanical Constraints, III-Anticipatory Postural Adjustments, IV-Postural Responses, V-Sensory Orientation, and IV-Stability in Gait) were able to differentiate between fast and slow walkers among older women with hip fracture. Balance during gait and anticipatory postural adjustments were shown to be important components of balance, and their cutoff values were indicators of the balance required to reach fast walking levels.

The minimal clinically important difference in Berg Balance Scale scores among patients with early subacute stroke: a multicenter, retrospective, observational study

Background: Balance dysfunction is common in stroke patients. The Berg Balance Scale (BBS) is useful for evaluating the balance function of stroke patients, and it can estimate the minimal clinically important difference (MCID) in balance. BBS scores differ among stroke patients depending on whether they require walking assistance. The MCID should thus be estimated separately for patients who require assistance and those who do not.Objectives: To estimate the MCID of individuals who have had an early subacute stroke and require a walking aid and those who do not, to assist the clinical determination of the effectiveness of therapy.Methods: This was a retrospective clinical analysis of 80 early subacute stroke patients. We estimated the MCID by using the Functional Ambulation Categories (FAC) as anchors for changes in BBS scores during a 1-month period. The MCID was estimated based on a cutoff score for separating the patients who achieved a FAC change ≥1 point on receiver operator characteristic curves. The area under the curve (AUC) was used to measure the discrimination accuracy. The MCID was estimated for the patients who needed walking assistance and those who did not.Results: The estimated MCID of BBS scores in the assisted-walking group was 5 points and the AUC was 0.84 (p < .01); the corresponding values in the unassisted-walking group were 4 points and 0.62 (p = .26).Conclusions: For early subacute stroke patients who require assistance to walk, a 5-point improvement in the BBS score is a useful indicator for reducing the amount of assistance.

Effects of assessment-oriented group action supported by a health professional on the physical function in community-dwelling older adults: a feasibility study

Background: Assessment-oriented group action (AGA) could be used to empower community-dwelling older adults to maintain their health by groups. AGA can be implemented with the support of a health professional to provide feedback to older adults on physical and cognitive function.Objective: To evaluate the effects of AGA.Methods: For this feasibility study, we enrolled 23 and 20 participants in the intervention and control groups, respectively. Thοse in the intervention group received feedback of their assessments and devised exercise plans with professional support. The participants performed their exercises over 12 weeks; the follow-up examination was conducted at 40 weeks. The control group only received feedback. The change in health-related consciousness and behavior was evaluated. Muscle strength and mass were measured and the timed up and go test, and the Brief-balance evaluation system test (BESTest) were performed.Results: There were no significant differences in consciousness or behavior between the groups. The score was higher in the intervention than in the control group at 40 weeks in Section-I of the Brief-BESTest, indicating that the muscle strength contributed to balance function.Conclusion: AGA did not show positive changes in consciousness or behaviors but demonstrated significant improvements and lasting effects in balance function.

Femoral morphology is associated with development of knee pain after hip fracture injury among older adults: A nine-year retrospective study

Introduction

We aimed to clarify differences in femoral morphology associated with post-hip fracture knee pain (PHFKP).

Methods

Medical records and radiographic examinations were retrospectively reviewed to determine the relationship between PHFKP development and femoral morphology. Leg length discrepancy (LLD) and neck-shaft angle discrepancy (NSAD) were measured from hip radiographs.

Results

202 were enrolled, of whom 64 (31.7%) developed PHFKP. The PHFKP group showed more varus NSA. Intertrochanteric femoral fractures (γ-nail or CHS) displayed a more varus NSA.

Conclusions

Femoral morphology (varus NSA) may be involved in the development of PHFKP.

Ability of the Brief-Balance Evaluation Systems Test to evaluate balance deficits in community-dwelling older adults: a cross-sectional study

BACKGROUND

A method for assessing balance that differentiates between balance deficit can help guide effective interventions for preventing falls in older adults.

OBJECTIVE

This study aimed to clarify the relationship between balance control systems and falls, and to examine the ability of the Brief-Balance Evaluation Systems Test (BESTest) to evaluate balance deficits in older adults.

METHODS

Overall, 109 community-dwelling older adults participated in this study. The history of falls in the last year was investigated. Balance deficits were assessed using the Brief-BESTest, the functional reach test, the Timed up and Go Test, and the one leg balance test. We analyzed the difference between the fallers and non-fallers across two different age groups.

RESULTS

Among younger-older group participants (age < 75 years), there were no significant differences between fallers and non-fallers across all variables. Among older-older group participants (age ≥ 75 years), there were significant differences in the Brief-BESTest total (p= .011; fallers, 13.5 versus non-fallers, 17.0) and section IV scores (postural responses of the Brief-BESTest; p= .026, 2.0 versus 5.0). There was no significant difference in other balance measurements.

CONCLUSIONS

The postural responses assessed by the Brief-BESTest may serve important functions and may be associated with falls in older adults.

Comparison of the structural validity of three Balance Evaluation Systems Test in older adults with femoral or vertebral fracture

OBJECTIVE

To clarify and compare the structural validity of 3 Balance Evaluation Systems Tests (BESTest, Mini-BESTest, and Brief-BESTest) in older adults with femoral or vertebral fractures.

DESIGN

Cross-sectional study.

SUBJECTS

Ninety-four older adults (age ?65 years) with femoral or vertebral fractures, who could walk without physical assistance.

METHODS

Four BESTest models (BESTest, one-factor Mini-BESTest, four-factor Mini-BESTest, and Brief-BESTest) were examined using confirmatory factor analysis, and the models goodness-of-fit was assessed. Unidimensionality of the best-fitting model was confirmed by Rasch principal component analysis on the residuals.

RESULTS

Confirmatory factor analysis showed that the four-factor Mini-BESTest model (comparative fit index?=?0.952; Tucker-Lewis index?=?0.937; root-mean square error of approximation?=?0.060; standardized root-mean-square residual?=?0.062) has a better structure than other models. The principal component analysis of standardized residuals showed that the variance attributable to Rasch factor was good, with eigenvalues <2, confirming the factors unidimensionality.

CONCLUSION

The four-factor Mini-BESTest model shows good structural validity in older adults with femoral or vertebral fracture. Evaluating dynamic balance by focusing on 4 components (anticipatory postural adjustments, postural responses, sensory orientation, and stability in gait) may help therapists in making clinical decisions.

Correction to: Comprehensive genetic analyses using targeted next-generation sequencing and genotype-phenotype correlations in 53 Japanese patients with osteogenesis imperfecta

The original article has been corrected.

Comparing the measurement properties and relationship to gait speed recovery of the Mini-Balance Evaluation Systems Test and the Berg Balance Scale in ambulatory individuals with subacute stroke

OBJECTIVES

Although the Mini-Balance Evaluation Systems Test (Mini-BESTest) is known to be a reliable and valid measure of balance in individuals with stroke, the utility of this tool in relation to subacute stroke walking speed and the recovery of gait ability has not been explored. Here, we compared the measurement properties and their relationship to gait speed on the Mini-BESTest and the Berg Balance Scale (BBS) in middle and older ambulatory individuals with subacute stroke, and we investigated which balance assessment tool is more likely to capture the status of the recovery of gait speed.

METHODS

We retrospectively analyzed the cases of 88 individuals 50 years or older with stroke who had been evaluated using the Mini-BESTest by using the BBS and by assessing their comfortable walking speed (CWS). The proportion of subjects who showed improvement was calculated for 34 stroke survivors from data obtained at admission to and discharge from the hospital.

RESULTS

Compared with the BBS, the Mini-BESTest showed a better distribution of total scores without a ceiling effect. The two scales showed correlations with gait speed (Mini-BESTest: r=0.702; BBS: r=0.592) and discrimination between fast and slow walkers. The responsiveness of the Mini-BESTest was excellent, with an area under the curve of 0.894, thus discriminating between gait speed improvement versus non-improvement.

CONCLUSIONS

These results indicate that the Mini-BESTest is more useful than the BBS in terms of its measurement properties and ability to measure gait recovery in middle and older ambulatory individuals with subacute stroke.

A Short-Duration Combined Exercise and Education Program to Improve Physical Function and Social Engagement in Community-Dwelling Elderly Adults

Exercise is a key intervention for improving older adults' physical function and life expectancy. Here, we investigated a short-term intervention program designed to improve the physical functioning of elderly adults in a community-dwelling setting. We examined the effect of a 5-week combined exercise and education program on the physical function, social engagement, mobility performance, and fear of falling in 42 subjects older than 65 years. Eleven subjects dropped out. There was significant improvement in the 30-second chair stand test (p < .001) and timed up-and-go test (p < .001) between the baseline and the last session. At the end of the intervention, the subjects' social engagement was significantly higher than at baseline (p = .022), but this improvement was not maintained in the follow-up assessment. These results suggest that a combined exercise and education program can improve the physical function and social engagement of elderly individuals living in a community dwelling.

Comprehensive genetic analyses using targeted next-generation sequencing and genotype-phenotype correlations in 53 Japanese patients with osteogenesis imperfecta

To elucidate mutation spectrum and genotype-phenotype correlations in Japanese patients with OI, we conducted comprehensive genetic analyses using NGS, as this had not been analyzed comprehensively in this patient population. Most mutations were located on COL1A1 and COL1A2. Glycine substitutions in COL1A1 resulted in the severe phenotype.

INTRODUCTION

Most cases of osteogenesis imperfecta (OI) are caused by mutations in COL1A1 or COL1A2, which encode α chains of type I collagen. However, mutations in at least 16 other genes also cause OI. The mutation spectrum in Japanese patients with OI has not been comprehensively analyzed, as it is difficult to identify using classical Sanger sequencing. In this study, we aimed to reveal the mutation spectrum and genotype-phenotype correlations in Japanese patients with OI using next-generation sequencing (NGS).

METHODS

We designed a capture panel for sequencing 15 candidate OI genes and 19 candidate genes that are associated with bone fragility or Wnt signaling. Using NGS, we examined 53 Japanese patients with OI from unrelated families.

RESULTS

Pathogenic mutations were detected in 43 out of 53 individuals. All mutations were heterozygous. Among the 43 individuals, 40 variants were identified including 15 novel mutations. We found these mutations in COL1A1 (n = 30, 69.8%), COL1A2 (n = 12, 27.9%), and IFITM5 (n = 1, 2.3%). Patients with glycine substitution on COL1A1 had a higher frequency of fractures and were more severely short-statured. Although no significant genotype-phenotype correlation was observed for bone mineral density, the trabecular bone score was significantly lower in patients with glycine substitutions.

CONCLUSION

We identified pathogenic mutations in 81% of our Japanese patients with OI. Most mutations were located on COL1A1 and COL1A2. This study revealed that glycine substitutions on COL1A1 resulted in the severe phenotype among Japanese patients with OI.