Feasibility and reliability of the Functional Movement Screen battery in adults with intellectual disability.

BACKGROUND: The feasibility and reliability of the Functional Movement Screen (FMS) battery for predicting injury risk have been widely studied in athletic, military, public service and healthy populations. However, scant research has been carried out in people with disabilities. This study aimed at identifying the feasibility and reliability of the FMS battery when administered to adults with intellectual disability (ID). METHODS: Adults from a residential and day care centre over 18 years of age, diagnosed with ID and able to follow simple instructions, were included in the study. All participants with behavioural or health problems that prevented the completion of the FMS battery were excluded. All exercises were video recorded to assure proper scoring. Three assessors (one trained and two novices) scored each of the FMS subtests performed separately from the videos. Feasibility was based on completion rates. Reliability of the composite test scores was analysed using intraclass correlation coefficients (ICCs). RESULTS: A total of 30 people with ID (mean age: 35.5 ± 7.12 years; 33.3% women) completed all assessments. The battery showed to be feasible, although difficulties when performing two of the subtests were observed among those with moderate and severe ID. Mean total scores from the three assessors ranged from 7.83 to 8.90. An inverse trend was observed indicating that the higher the ID level, the lower the total FMS score. Test-retest reliability was good for the trained assessor (ICC = 0.89) and mostly moderate for both novice assessors (ICC range: 0.60 to 0.76). Moderate to good inter-rater reliability was observed (ICC range: 0.65 to 0.80). CONCLUSION: The FMS battery is a reliable tool that can be performed by people with ID, albeit with certain difficulties, especially in those with moderate to severe impairment. The battery does not seem to be useful for identifying people with ID at risk of suffering a sport injury. Adequately powered, well-designed studies are required to determine if the FMS battery is appropriate for identifying changes in functional performance in this population.

[Effects of a physical exercise programme on the risk of falls, balance, and walking speed in older people with intellectual disabilities]. / Efecto de un programa de ejercicio físico sobre el riesgo de caídas, equilibrio y velocidad de la marcha en personas mayores con discapacidad intelectual.

INTRODUCTION: People with intellectual disabilities (ID) have balance disturbances and risk of falls, which are aggravated with ageing. This study aimed to provide information on the effects of an exercise programme on fall risk, balance, and walking speed in a group of older people with ID. MATERIALS AND METHODS: Eight people with mild to moderate ID (mean age: 56.37±7.08 years) participated in a 12-week programme based on a weekly session that included exercises aimed at strengthening stabilising muscles, stimulating proprioception, and enhancing reflexes in unstable situations. The effects of the programme on the risk of falling and on balance and walking speed were assessed using the Tinetti scale and the Timed Up and Go test, respectively. RESULTS: The programme was feasible and no adverse effects were registered. At the end of the programme, the risk of falls remained unchanged, while balance and gait speed improved significantly. CONCLUSIONS: A three-month weekly programme based on muscle strengthening and proprioceptive re-education exercises was feasible and had a positive impact on balance and walking speed in a group of older people with ID. These results lay the foundation for future randomised clinical trials aiming to confirm the effects of such programmes on the risk of falls in this population.

Test-retest reliability of the Wii Balance Board for assessing standing balance in young people with intellectual disability.

Objectives: The main objective was to identify the test-retest reliability of the Wii Balance Board (WBB) for assessing standing balance when administered to a population of people with intellectual disability (ID). A secondary objective was to provide information regarding the reliability of the WBB, taking into account the severity of cognitive impairment. Methods: The WBB was administered two times to a group of 50 people (mean age: 20.44 ± 5.73 years) with mild (n=32), moderate (n=6), or severe ID (n=12) within a 15-day period. The relative reliability of the WBB for the 'standing balance with open eyes' test was analyzed by means of intraclass correlation coefficients (ICCs). The standard error measurement and the minimum detectable change were used to identify absolute reliability. Results: For the whole sample, the WBB showed a fair (ICC=0.71), poor (ICC=0.66), and excellent (ICC=0.99) relative reliability for assessing weight-bearing asymmetry, center of pressure, path length, and sway area, respectively. In people with moderate/severe ID, statistically significant differences between the WBB test and retest scores were found. The absolute reliability of the WBB was considered poor. Conclusion: The WBB showed accurate adequate test-retest reliability for assessing standing balance in young people with ID. When using this device with people with moderate/severe ID, it is advisable to perform several testing trials, in order to avoid a possible learning effect. Standard error of measurement and minimal detectable change were high, indicating that this device might not be sensitive enough to properly identify static balance changes in this population.