Validity and Responsiveness of the Trunk Impairment Scale and Trunk Control Measurement Scale in Young Individuals with Cerebral Palsy

Improving trunk posture control in children with CP through a cable-driven robotic hippotherapy: A randomized controlled feasibility study

BACKGROUND

Many children with cerebral palsy (CP) show impairments in trunk posture control, one crucial factor contributing to impairments in gait and arm manipulation.

RESEARCH QUESTION

The goal of this study was to test the feasibility of the cable-driven hippotherapy system on improving trunk posture control and walking function in children with CP.

METHOD

Ten children were recruited in this study with average age 6.4 ± 3.0 years old, and were randomly assigned to the robotic group and the conventional balance training group. A custom designed cable-driven robotic hippotherapy system was used to deliver controlled pelvis perturbations while children were sitting astride. Participants from both groups underwent intensive robotic hippotherapy training or conventional balance training, depending on their group assignment, for 6 weeks (3 time/week). Outcome measures were assessed pre and post 6 weeks of robotic or conventional balance training, and 8 weeks after the end of training (follow-up test). The primary outcome measure was trunk control, which was measured using the Trunk Control Measurement Scale (TCMS). In addition, the Gross Motor Function Measure (GMFM-66), self-selected overground walking speed, and 6-minute walking distance were also assessed.

RESULTS

The change in TCMS score from baseline to the post intervention was significantly greater for the robotic group than that for the conventional group (i.e., 6 ± 3 vs. -1 ± 5, p = 0.048, Mann-Whitney test). GMFM scores, self-selected overground walking speed, and 6-minute walking distance showed no significant improvement after robotic hippotherapy and after conventional balance training (p > 0.05).

SIGNIFICANCE

Results from this study indicated that it was feasible to improve trunk posture control in children with CP using a cable-driven robotic hippotherapy system. Knowledge obtained from this study may provide an insight for the development of new perturbation-based intervention approaches for improving trunk posture control in children with CP.

Validity and reliability of the Persian version of the trunk impairment scale in people with multiple sclerosis

BACKGROUND

In order to provide an important measuring tool for the assessment, prognosis of recovery, and treatment of people with multiple sclerosis (PWMS), the aim of this research is to examine the validity and reliability of the Trunk Impairment Scale (TIS) in Persian.

METHODS

The research included 105 PWMS. The TIS questionnaire was translated and culturally equivalent according to the IQOLA approach. The Intra Class Correlations (ICC) and Cronbach's alpha were used to assess the internal consistency of the questionnaire. Barthel Index (BI), Time Up and Go (TUG), Multiple Sclerosis Walking Scale-12 (MSWS-12), and Trunk Control Test (TCT) scores were correlated with the TIS score in order to assess validity.

RESULTS

86 of 105 participants in this study were female. For several subscales, the ICC correlation coefficient ranged from 0.89 to 0.98. The Cronbach's alpha value of the TIS total score indicates that the TIS questionnaire has quite good internal consistency. (Cronbach's alpha=0.97). The TIS and the MSWS-12, BI, TUG, and TCT questionnaires have correlation coefficients of 0.78, 0.72, 0.60, and 0.71, respectively, indicating strong construct and concurrent validity.

CONCLUSION

The results of the research showed that the TIS in Persian is a relevant and reliable tool for assessing trunk abnormalities in Persian-speaking PWMS.

The relationship between the backward walking and proprioception, trunk control, and muscle strength in children with cerebral palsy

OBJECTIVE

This study was planned to determine the factors affecting backward walking in children with cerebral palsy (CP).

METHODS

The study included 30 children with CP, with a mean age of 10.43 ± 2.76 years. Backward walking abilities were evaluated with the 3-Meter Back Walk Test (3MBWT). A digital goniometer was used to evaluate proprioception, the Trunk Control Measurement Scale (TCMS) was used for trunk control, a digital muscle dynamometer was used for muscle strength, and the Gillette Functional Assessment Questionnaire (FAQ) was used for gait evaluation.

RESULTS

When the spasticity of children at levels I and II according to the Gross Motor Function Classification System (GMFCS) was compared, a significant difference was found in favor of level I in hamstring, gastro-soleus, and gastrocnemius spasticity (p < 0.05). When the results of the 3MBWT, TCMS, and FAQ were compared, a significant difference was found in favor of level I (p < 0.05). No significant relationship was revealed between the 3MBWT and lower extremity proprioception and TCMS (p > 0.05). A significant negative correlation was observed between the 3MBWT and FAQ (p < 0.05). No significant correlation was found between the 3MBWT and lower extremity muscle strengths (p > 0.05). A significant positive correlation was found only between hip extension proprioception and iliopsoas muscle strength (p = 0.023). There was no significant correlation between the FAQ and lower extremity muscle strength (p > 0.05).

CONCLUSION

It was revealed that the backward walking ability increased as the forward walking function improved in children with CP, but it was not affected by proprioception, trunk control, and muscle strength.

CLINICAL TRIALS

NCT05088629 (10/11/2021).

Trunk Control Measurement Scale (TCMS): Psychometric Properties of Cross-Cultural Adaptation and Validation of the Spanish Version

The aim of this study was to develop a Spanish Version of the Trunk Measurement Scale (TCMS-S) to analyze its validity and reliability and determine the Standard Error of Measurement (SEM) and Minimal Detectable Change (MDC) in children with Cerebral Palsy (CP). Participants were assessed twice 7-15 days apart with the TCMS-S and once with the Gross Motor Function Measurement-88 (GMFM-88), Pediatric Disability Inventory-Computer Adaptive Test (PEDI-CAT), Cerebral Palsy Quality of Life (CPQoL), and Gross Motor Classification System (GMFCS). Internal consistency was evaluated using Cronbach's alpha, and the intraclass correlation (ICC) and kappa coefficients were used to investigate the agreement between the assessments. Finally, 96 participants with CP were included. The TCMS-S showed excellent internal consistency (Cronbach's alpha = 0.95 [0.93 to 0.96]); was highly correlated with the GMFM-88 (rho = 0.816) and the "mobility" subscale of the PEDI-CAT (rho = 0.760); showed a moderate correlation with the "feeling about functioning" CPQoL subscale (rho = 0.576); and differentiated between the GMFCS levels. Excellent test-retest agreement was found for the total and subscale scores (ICC ≥ 0.94 [0.89 to 0.97). For the total TCMS-S score, an SEM of 1.86 and an MDC of 5.15 were found. The TCMS-S is a valid and reliable tool for assessing trunk control in children with CP.

Psychometric properties of trunk impairment scale in children with spastic diplegia

The Trunk Impairment Scale (TIS) is a valid and reliable tool to assess trunk impairment in children with heterogeneous cerebral palsy. The purpose of this study was to determine the reliability and validity of the TIS in assessing children with spastic diplegic cerebral palsy. The sample was a total of 30 subjects (15 = boys, 15 = girls). All subjects underwent an assessment of the sitting component of the Gross Motor Function Measure-88 and TIS by rater 1. Rater one observed video recordings within 24 h and scored TIS for intra-rater reliability, while rater two did likewise after 48 h for inter-rater reliability. The mean and standard deviation of the TIS and sitting components of the Gross Motor Function Measure-88 were 15.66 ± 4.20 and 52.36 ± 6.26, respectively. We established intra-rater and inter-rater reliability of the TIS with Intra Class Correlation Coefficient 0.991 and 0.972, respectively. The concurrent validity of the TIS with the sitting component of the Gross Motor Function Measure-88 was good, with an r-value of 0.844 (p < 0.001). This study showed the excellent intra-rater and inter-rater reliability and high concurrent validity of the TIS in assessing children with spastic diplegic cerebral palsy.

Effectiveness of Extracorporeal Shock Wave Therapy on Postural Control and Balance in Children With Unilateral Cerebral Palsy: A Randomized Controlled Trial

The aim of this study was to investigate the effects of Extracorporeal Shock Wave Therapy (ESWT) applied to paraspinal muscles on balance and postural control in children with unilateral Cerebral Palsy (CP). A total of 32 children with unilateral CP were included in the study. The children participated in a one-session control to evaluate their reactions to ESWT before randomly assigning them into experimental and control groups. We evaluated children twice: before and after the treatment. We used the Trunk Control Measurement Scale, Trunk Impairment Scale, Pediatric Balance Scale (PBS), and Timed Up and Go (TUG) test in these assessments. Following the pre-test session, we applied Neuro-Developmental Treatment (NDT) programs to both groups at the rate of twice per week for eight weeks; additionally, we applied ESWT only to the experimental group at the rate of twice a week for eight weeks. While there were trends toward increased trunk control skills, PBS scores and TUG test performances from pre- to post-testing in both groups, these improvements were only statistically significant in the experimental group (p < 0.05). We conclude that for children with unilateral CP, ESWT applied to paraspinal muscles has significant additive value when combined with NDT to improve postural control and balance.

Exergaming improves balance in children with spastic cerebral palsy with low balance performance: results from a multicenter controlled trial

PURPOSE

Previous studies investigating the effectiveness of exergame balance-training (using video-games) in children with cerebral palsy (CP) yielded inconsistent results that could be related to underpowered studies. Therefore, in this multicenter intervention study, we investigated whether exergaming improves balance clinically in spastic CP.

MATERIALS AND METHODS

In total, 35 children with unilateral or bilateral spastic CP (GMFCS-level I-II) were included (age-range: 7-16 years); 16 at VUMC (trial: NTR6034), 19 at UHG (trial: NCT03219112). All participants received care as usual. The intervention group (n = 24) additionally performed exergame-training; 6-8 weeks home-based X-box One Kinect training focused on balance. Balance performance was assessed with the pediatric balance scale (PBS) and two subscales of the Bruininks-Oseretsky Test of Motor Proficiency-2nd edition ("balance" [BOTbal] and "running speed and agility" [BOTrsa]). Mixed model ANOVAs with between and within factors were used to test differences between and within groups.

RESULTS

On group level, no post-intervention differences were found between the intervention and control group (PBS: p = 0.248, η_p² = 0.040; BOTbal: p = 0.374, η_p² = 0.024; BOTrsa: p = 0.841, η_p² = 0.001). Distribution of CP-symptoms (unilateral versus bilateral) did not affect training (PBS: p = 0.373, η_p² = 0.036; BOTbal: p = 0.127, η_p² = 0.103; BOTrsa: p = 0.474, η_p² = 0.024). Children with low baseline balance performance (based on PBS) in the intervention group showed improvements in balance performance after training (PBS: p = 0.003, η_p² = 0.304; BOTbal: p = 0.008, η_p² = 0.258), whereas children with high baseline balance performance did not.

CONCLUSIONS

This exergame-training resulted in balance improvements for the current population of CP that had a low baseline function.IMPLICATIONS FOR REHABILITATIONExergame-training (training using video-games) shows mixed results in children with cerebral palsy (CP).Children with spastic CP (GMFCS level I-II) with a high baseline balance-level did not show functional balance improvements after this home-based exergame-training, suggesting that these children should not be enrolled in this type of exergame-training protocol.Children with spastic CP (GMFCS level I-II) with a low baseline balance-level showed clinically relevant functional balance improvements after this home-based exergame-training, suggesting that these children can benefit from enrolment in this type of exergame-training protocol to improve their balance.The distribution of CP-symptoms did not affect the effectiveness of this balance exergame-training in children with spastic CP with GMFCS-level I and II.

The functional assessment for control of trunk (FACT): An assessment tool for trunk function in stroke patients

BACKGROUND

The Functional Assessment for Control of Trunk (FACT) was developed to evaluate trunk function after stroke. However, only a few studies used FACT to show functional outcome.

OBJECTIVE

This study aimed to validate the FACT predictive ability for functional outcome following stroke and create an English version of the FACT.

METHODS

This retrospective, observational study was conducted with patients aged≥65 years with stroke. Patients were divided into two groups according to the median FACT score at admission: trunk impairment or high trunk function group. Multiple regression analysis was performed for Functional Independence Measure (FIM) gain and FIM efficiency to examine the relationship between trunk function assessed by FACT at admission and functional prognosis.

RESULTS

105 participants (mean age, 80.2±7.6, 57.1%were men) were included. Of these, 48 (45.7%) and 57 (54.3%) were categorized to the trunk impairment group and high trunk function group, respectively. FACT score at admission was associated with FIM gain (coefficient = 0.875, P = 0.001) and FIM efficiency (coefficient = 0.015, P = 0.016) after adjusting for confounders.

CONCLUSIONS

Trunk impairment at admission assessed by FACT could predict functional prognosis. The English version of FACT was created and further demonstrated the validity of FACT.

Facilitating new movement strategies: Equine assisted physiotherapy for children with cerebral palsy

BACKGROUND

Equine Assisted Physiotherapy (EAPT) offers children with cerebral palsy (CP) opportunities for new movement experiences, and may influence movement qualities. Descriptions of how, and to what extent EAPT affects trunk control is missing. The aim of this study was to explore if, and how changes in trunk control and changes in other movement aspects were observable in children with CP during EAPT, and if potential changes in trunk control could be measured.

METHOD

A multiple case study with a mixed methods design was completed. Two children with CP, GMFCS grade 1, were observed using video during a period of six months, and tested with Trunk Impairment Scale modified Norwegian Version. Skilled physiotherapists analyzed the videos qualitatively, and triangulated recurring changes in movement with the results from the test.

RESULTS

Riding bareback, improvements in trunk control were observed and measured. However, riding in a saddle led to reduced trunk control. Other observable movement changes were: from asymmetry to symmetry, adaptation to rhythm, mastery of riding skills, and reduced loss of postural control. Increased instances of adapting own movements in spontaneous dialogue with the horse, were observed. Instructions and feedback from the therapist influenced the dialogue with the horse both positively and negatively.

CONCLUSION

This study describes in detail how balance and symmetry can be stimulated during EAPT in a body characterized by imbalance and asymmetry. During EAPT, the children gained the possibility to explore new movement qualities. Equipment and feedback influenced movement qualities.

Reliability and Validity of the Trunk Control Measurement Scale Among Children and Adolescents With Cerebral Palsy in Tanzania

The aim of this study was to investigate the reliability and validity of the Trunk Control Measurement Scale (TCMS) among children with cerebral palsy (CP) who were living in Tanzania. Two physiotherapy trainees, each blinded to the other's test findings, independently administered the TCMS to 38 children with CP (16 female; M age = 7.2, SD = 4.8 years) twice over sessions separated by a 30-day interval. We assessed internal consistency and intra/inter-rater reliability using Cronbach's alpha and the Intraclass Correlation Coefficient (ICC), respectively. We examined measurement error through Standard Error of Measurement (SEM) and Minimal Detectable Change (MDC). We assessed construct validity with Spearman's correlation coefficient between the TCMS and both the Gross Motor Function Classification System (GMFCS) and the Manual Ability Classification System (MACS). We found a frank floor effect. Internal consistency (α = 0.945) and reliability indices were excellent for the total scale (ICC for intra-rater reliability = 0.985, inter- reliability = 0.997) and for each sub-scale score. We found low values of SEM (1.7 points) and MDC (4.8 points). Construct validity was supported by moderate and strong correlations between the TCMS and the GMFCS and MACS in this sample. We conclude that the psychometric properties of the TMCS support its clinical and research use for youth with CP in low-income settings.

Accelerometric Assessment of Postural Balance in Children: A Systematic Review

The correct development of postural control in children is fundamental to ensure that they fully reach their psychomotor capacities. However, this capacity is one of the least studied in the clinical and academic scope regarding children. The objective of this study was to analyze the degree of implementation of accelerometry as an evaluation technique for postural control in children and how it is being used.

METHODS

A systematic search was conducted in PubMed, SpringerLink, SportsDiscus, Medline, Scopus, and Web of Science with the following terms: balance, postural control, children, kids, accelerometry, and accelerometer.

RESULTS

The search generated a total of 18 articles. Two groups of studies were differentiated: those which exclusively included healthy individuals (n = 5) and those which included children with pathologies (n = 13). Accelerometry is being used in children mainly to assess the gait and static balance, as well as to identify the differences between healthy children and children with developmental disorders.

CONCLUSIONS

Accelerometry has a discrete degree of implementation as an evaluation tool to assess postural control. It is necessary to define a systematic method for the evaluation of postural control in pediatrics, in order to delve into the development of this capacity and its alterations in different neurodevelopmental disorders.

Cluster analysis of impairment measures to inform an evidence-based classification structure in RaceRunning, a new World Para Athletics event for athletes with hypertonia, ataxia or athetosis

RaceRunning enables athletes with limited or no walking ability to propel themselves independently using a three-wheeled frame that has a saddle, handle bars and a chest plate. For RaceRunning to be included as a para athletics event, an evidence-based classification system is required. This study assessed the impact of trunk control and lower limb impairment measures on RaceRunning performance and evaluated whether cluster analysis of these impairment measures produces a valid classification structure for RaceRunning. The Trunk Control Measurement Scale (TCMS), Selective Control Assessment of the Lower Extremity (SCALE), the Australian Spasticity Assessment Scale (ASAS), and knee extension were recorded for 26 RaceRunning athletes. Thirteen male and 13 female athletes aged 24 (SD = 7) years participated. All impairment measures were significantly correlated with performance (rho = 0.55-0.74). Using ASAS, SCALE, TCMS and knee extension as cluster variables in a two-step cluster analysis resulted in two clusters of athletes. Race speed and the impairment measures were significantly different between the clusters (p < 0.001). The findings of this study provide evidence for the utility of the selected impairment measures in an evidence-based classification system for RaceRunning athletes.

The Effect of a Rehabilitation Specific Gaming Software Platform to Achieve Individual Physiotherapy Goals in Children with Severe Spastic Cerebral Palsy: A Randomized Crossover Trial

Cerebral palsy (CP) is the most common cause of permanent neurological disabilities in children. Many children require long-term daily physiotherapy (PT), and videogaming is a promising tool to increase motivation in rehabilitation. The short- and medium-term effects of an intervention with rehabilitation specific videogames were evaluated on individually defined therapy goals, gross motor function, and motivation. Thirty-two children with bilateral spastic CP, Gross Motor Function Classification level III-IV, and 6-15 years were randomized into an intervention group (regular PT and gaming) or a control group (regular PT), followed by a crossover. The effects of both training periods (each 12 weeks) were compared using the Goal Attainment Scale (GAS), Trunk Control Measurement Scale (TCMS), Pediatric Balance Scale (PBS), Gross Motor Function Measure-88 (GMFM-88), and Dimensions of Mastery Motivation Questionnaire (DMQ). After 3 months follow-up, children were retested using the GMFM, TCMS, and PBS. The GAS change scores were significantly higher after the intervention compared to the control period (8.5 and 2.4, P < 0.001). The change scores for standing exercises (3.85 and 0.22, P = 0.04) and dynamic sitting balance (5.9 and -1.7, P < 0.001) were also significantly higher. After 3 months follow-up the results did not persist. A combined approach of regular PT and rehabilitation specific gaming showed significant effects on individually defined therapy goals, dynamic sitting balance, and standing exercises. However, the lack of persistent effect indicates that continuous individual goal-oriented PT with the addition of gaming is needed.

High-level motor skills assessment for ambulant children with cerebral palsy: a systematic review and decision tree

AIM

To examine the psychometric evidence for high-level motor skills assessment tools for ambulant, school-aged children with cerebral palsy (CP).

METHOD

We searched five databases for population (children with CP aged 5-18y in Gross Motor Function Classification System levels I and II), assessment focus (high-level motor skills), and psychometric evidence. We evaluated evidence strength using the number of studies, quality, and conduct according to COnsensus-based Standards for the selection of health status Measurement INstruments checklists.

RESULTS

Eleven assessments (39 studies) met the criteria. Seven high-level motor skills assessment items (Muscle Power Sprint Test, 10m Shuttle Run Test, 10×5m Sprint Test, vertical jump, standing broad jump, seated throw, and Timed Up and Down Stairs) had strong validity and responsiveness evidence. Jumping items and seated throw lacked reliability data. Four high-level motor skills assessment batteries (Functional Strength Measure in CP, Gross Motor Function Measure-Challenge, Peabody Developmental Motor Scale, and Test of Gross Motor Development, Second Edition) had moderate-to-strong validity and/or reliability evidence. Responsiveness data were only available for the Gross Motor Function Measure-Challenge battery. The decision tree was developed with five levels: clinical feasibility, relevance, tool design, clinical utility, and psychometric properties.

INTERPRETATION

High-level motor skills assessment tools have strong psychometric evidence for ambulant, school-aged children with CP. The decision tree can assist clinicians and researchers in identifying appropriate tools to measure high-level motor skills.

WHAT THIS PAPER ADDS

An evidence-based decision tree guides the selection of appropriate high-level motor skills assessment tools. Seven high-level motor skills assessment items have strong psychometric evidence and clinical utility for ambulant children with cerebral palsy. Four high-level motor skills assessment batteries with recreation and mobility items have emerging psychometric evidence in this population.

Inter-Rater Reliability, Concurrent Validity and Sensitivity of Current Methods to Assess Trunk Function in Boccia Player with Cerebral Palsy

Trunk function is a core factor to allocate Boccia players with cerebral palsy in BC1 and BC2 sport classes, according to the Boccia International Sports Federation (BISFed). However, the appropriateness of the current test to assess trunk function has never been studied to determine its reliability, validity and sensitivity to discriminate between different levels of impairment. Thirty-six players (BC1 = 13 and BC2 = 23) took part in this study. Trunk control was assessed through the BISFed trunk function scale (TFS) and a posturographic test battery consisting of two static and three dynamic tasks. The inter-rater reliability for the BISFed TFS was set at 94.44% of agreement. Moderate-to-high correlations were obtained between posturographic tasks (0.39 < r < 0.96; p < 0.05–0.01), while the BISFed TFS only correlated with two of the dynamic tasks and the overall dynamic score (−0.38 < r < −0.51; p < 0.05). The BISFed TFS was not able to discriminate between sport classes, whereas the static posturographic task did so (p = 0.004). Even though the current BISFed TFS presented good inter-rater reliability, it does not seem to have enough sensitivity to discriminate between BC1 and BC2. Although the static posturographic tasks were able to discriminate between sports classes, it seems necessary to develop new field tests assessing participants’ trunk stabilization abilities.

Effects of Task-oriented Activities Based on Neurodevelopmental Therapy Principles on Trunk Control, Balance, and Gross Motor Function in Children with Spastic Diplegic Cerebral Palsy: A Single-blinded Randomized Clinical Trial

Purpose:

To examine the effects of task-oriented activities based on neurodevelopmental therapy (TOA-NDT) principles on trunk control, balance, and gross motor function in children with spastic diplegic cerebral palsy (SDCP).

Materials and Methods:

Forty-four children with SDCP, aged 7–15 years, were recruited to participate in the randomized clinical trial. After random allocation, twenty-two (n = 22) children with SDCP participated in TOA-NDT principles and twenty-two (n = 22) in conventional physiotherapy (CPT) program. Each group underwent the treatment for a duration of 60min per day, 6 days a week for 6 weeks. Gross motor function measure-88 (GMFM-88), postural assessment scale (PAS), pediatric balance scale (PBS), and trunk impairment scale (TIS) were the outcome measures used to document the pre- and post-intervention effect.

Results:

The mean difference of GMFM-88, PAS, PBS, and TIS was 8.53 (5.84–11.23), 0.90 (5.84–11.23), 4.86 (2.93–6.79), and 1.45 (0.30–2.60), respectively. TOA-NDT group showed improvement in all the outcomes.

Conclusion:

TOA-NDT principles are more beneficial in improving the trunk control, balance, and gross motor function parameters than CPT.

Trunk Control in Children With Ataxic Cerebral Palsy

This study aimed to investigate the clinical characteristics of trunk control in children with ataxic cerebral palsy (CP). We included 15 children with ataxic CP with a mean age of 9.46 years (SD = 1.08 years, 5-17 years) and 15 healthy children with a mean age of 9.06 years (SD = 0.84 years, 5-13 years). While the small sample size and large age range used here were not ideal for generalizability, they were made necessary by the rarity of this clinical sample. We used the Gross Motor Function Classification System Expanded and Revised (GMFCS-E&R) to classify the children's functional levels, and we tested trunk control with the Trunk Control Measurement Scale (TCMS). We then used the Gross Motor Function Measurement-88 (GMFM-88) to assess their gross motor functions. We compared the total and subscale scores of the TCMS in healthy children and children with ataxic CP by using the Mann-Whitney U Test. We also analyzed differences between TCMS scores according to the children's GMFCS levels with the Mann-Whitney U Test and also compared TCMS scores with the GMFM-88 by means of Spearman correlation analysis. Spearman correlation analysis was used to compare the scores of the TCMS with the GMFM-88. Our results showed that healthy children showed significantly higher scores than children with ataxic CP in total and subscale scores of TCMS (p < .05).There was no significant difference between the TCMS scores in children of different GMFCS levels, but the GMFM-88B subscale was significantly correlated with the static sitting balance (r_ho = .568, p < .05) and dynamic sitting balance (r_ho = .547, p < .05) TCMS subscales and with the TCMS total score (r_ho = .590, p < .05). We concluded that trunk control, especially its dynamic aspects, was impaired in children with ataxic CP.

Trunk control and functionality in children with spastic cerebral palsy

PURPOSE

To investigate the relationship between trunk control in sitting and functionality in children with spastic cerebral palsy (CP).

METHODS

Fifty-eight children with spastic CP were included in the study. Functional abilities were evaluated with the Gross Motor Function Measurement-88 (GMFM-88) and the Pediatric Evaluation of Disability Inventory Functional Skills domain (PEDI-FSD). Trunk control in sitting was tested with the Trunk Control Measurement Scale (TCMS) and the Trunk Impairment Scale (TIS). The scores of the TCMS and TIS were compared with GMFM-88 and PEDI-FSD with Spearman correlation analysis.

RESULTS

The total score of GMFM-88 was significantly correlated with the total score of TCMS (r_ho = 0.90, p < 0.01) and TIS (r_ho = 0.78, p < 0.01). The total score of PEDI-FSD was also significantly correlated with the total score of TCMS (r_ho = 0.76, p < 0.01) and TIS (r_ho = 0.72, p < 0.01).

CONCLUSIONS

The evaluation of trunk control can provide valuable information for functional abilities of children with spastic CP.

Assessing the validity and reliability of the Turkish version of the Trunk Impairment Scale in stroke patients

OBJECTIVE:

To determine the validity and reliability of the Turkish version of the Trunk impairment scale (TIS), used in the evaluation of somatic, motor, and coordination disturbances in stroke patients, and provide a culturally adapted version for use in the Turkish population.

METHODS:

A total of 80 patients who were either hospitalized at our facility and rehabilitated for stroke or admitted at our outpatient clinics were included in this study. Reliability was evaluated by the internal consistency (Cronbach α) and test reproducibility [intra-class correlation coefficient (ICCC)] methods, and validity was evaluated by the correlation between subgroups and the total scores of the TIS and Berg Balance Scale (BBS), Brunnstrom phases, Barthel index (BI), Rivermead mobility index (RMI), and Short Form-36 (SF-36) scores.

RESULTS:

The mean age of the patients was 63.00±12.1 years. Out of a total of 80 subjects, 34 were female and 46 were male. The reliability of the scale was evaluated by the internal consistency, inter- and intra-observer reliability, and test reproducibility. The findings showed that the Turkish form of the scale was reliable at a good level. The test values were as follows; Cronbach α: >0.70, ICCC: 0.969–1, subgroups and total score comparison: 0. The correlation between TIS and BBS was considerably high in the validity analysis (p<0.001). Further, significant associations among the BI, RMI, KF-36, Brunnstrom, and TIS scores were found (p<0.001), which indicate the structural validity of this scale.

CONCLUSION:

TIS is a scale used in measuring the motor derangement that develops after a stroke. It has sufficient reliability, internal consistency, and validity for use in clinical practice and stroke investigations. Our study has shown that TIS used for the evaluation of body balance is valid and reliable for the Turkish population.

Discriminant ability and criterion validity of the Trunk Impairment Scale for cerebral palsy

Aims: To compare the performance of children with mild and moderate-to-severe cerebral palsy (CP) on the Trunk Impairment Scale (TIS), Gross Motor Function Measure (GMFM), and on center-of-pressure variables; to establish the discriminant ability of these tools to predict severity of motor impairment in CP; and to investigate the criterion validity of the TIS. Methods: Children with mild (n = 18, 11 males, 7 females, mean age = 9.5 ± 2.9 years, Gross Motor Function Classification System I-II) and moderate-to-severe (n = 18, 11 males, 7 females, mean age = 9.2 ± 229, Gross Motor Function Classification System III-IV) CP were tested using the TIS and the GMFM, and during static sitting on force-plate. Results: Children with mild CP showed better trunk (median; 95% confidence interval = 22.5; 21.29-22.59 vs. 13; 11.97-14.8; p < 0.001) and gross motor (60; 57.73-59.3 vs. 40; 38.96-46.25; p < 0.001) scores, and better postural control (lower center of pressure (CoP) displacement [anterior-posterior: (0.42; 0.32-1.11 vs. 0.89; 0.70-1.65; p = 0.022); medial-lateral: (0.42; 0.31-1.08 vs. 0.91; 0.65-1.17; p = 0.044)], and lower area of sway, (0.05; -0.15-0.97 vs. 0.44; 0.23-0.90; p = 0.008) than the moderate-to-severe group. Trunk control and gross motor function explained 81.5% of the variance in the severity of motor condition. Correlations between the TIS and the GMFM were excellent (ρ = 0.944, p < 0.001); correlations between the TIS and CoP variables were low (anterior-posterior displacement: ρ = -0.411, p < 0.05; medial-lateral displacement: ρ = -0.327, p < 0.05); area of sway: ρ = -0.430, p < 0.05; velocity of sway: ρ = -0.308, p < 0.05). Conclusions: The TIS is able to differentiate levels of trunk control across various levels of motor impairments in CP. It is a valid tool to assess trunk control, showing very high concurrent validity with the GMFM sitting dimension. Implications for Rehabilitation Trunk Impairment Scale (TIS) can be used by rehabilitation professionals to differentiate levels of trunk control across levels of motor impairment. TIS showed concurrent validity with Gross Motor Function Measure and should be used to assess trunk control in children with cerebral palsy (CP) in clinical settings. The use of TIS allows a reliable assessment of postural control in children with CP in clinical settings.

Reliability analysis of the Korean version of the trunk control measurement scale in cerebral palsy

[Purpose] The purpose of this study was to translate the Trunk Control Measurement Scale into a Korean version and to analyze the intra- and inter-rater reliability. [Subjects and Methods] Fifteen children with spastic cerebral palsy and four physical therapists with over 10 years of clinical experience participated in this study. A Korean-American physical therapist translated the trunk control measurement scale from English into a Korean version. Four physical therapists viewed the video data of 15 children and scored each child's trunk control measurement scale performance on seven separate days. Four testers analyzed the test-retest reliability and inter-rater reliability using the intra-class correlation coefficient. [Results] Intra-class correlation coefficients for test-retest and inter-rater reliability for the Korean trunk control measurement scale showed significantly high reliability in all testers and sublevels. [Conclusion] The Korean version of the measurement scale is a reliable and suitable instrument for assessing trunk control in individuals with cerebral palsy in Korea.

The Trunk Control Measurement Scale: reliability and discriminative validity in children and young people with neuromotor disorders

AIM

This study investigated the intra- and interrater reliability of the Trunk Control Measurement Scale (TCMS) German version, with its subscores, in children with neuromotor disorders. Further, the discriminative validity of the TCMS was assessed by comparing the TCMS scores with the Functional Independence Measure for children.

METHOD

Bland-Altman analyses and intraclass correlation coefficients were applied to investigate reliability. The discriminative ability of the TCMS was evaluated with receiver operating characteristics.

RESULTS

Ninety children (mean age 11y 5mo; range 5y-18y 11mo) participated for the reliability, and 50 for the discriminative validity study. The reliability proved to be excellent (intrarater: bias=0.57 points, 95% confidence interval [CI] -3.71 to 4.85; interrater: bias=-0.31 points, 95% CI -5.77 to 5.10). A change in the TCMS total score of six points (10%) can be considered a true change. The TCMS subscores appeared to be clinically relevant because children with less than around 80% of the static balance score, less than 55% of the dynamic reaching score, or less than around 35% of the selective movement control score needed support for daily life activities.

INTERPRETATION

The TCMS is a reliable and clinically relevant assessment for children aged 5 years and older with different neurological impairments.