Objectives: The Biodex SD Stability System has been shown to be a reliable assessment tool for postural stability. However, its ability to provide an accurate representation of balance has not been compared with functional performance measures such as the four‐square step test (FSST) and timed‐up‐and‐go test (TUG). The purpose of this study was to investigate reliability, internal consistency, and construct validity of FSST, TUG, and Biodex SD (limits of stability [LOS] and modified Clinical Test of Sensory Organization and Balance [m‐CTSIB]). Methods: An observational reliability and validity study was conducted. A convenience sample of 105 healthy adults, 77 females and 28 males, mean age 24.5 years old (± 4.66 SD) performed balance assessments including the FSST, TUG, Biodex SD LOS, and m‐CTSIB. For LOS, the overall percentage and test duration were recorded. For m‐CTSIB, the overall Sway Index was recorded. Condition 1 of the m‐CTSIB represented simple postural stability. Results: The Biodex SD LOS overall percentage, TUG, and FSST showed strong to excellent test‐retest reliability (ICC [3, 1] = .83 [mean 1: 58.14, mean 2: 60.54], .88 [mean 1: 6.98 seconds, mean 2: 6.91 seconds], .92 [mean 1: 6.29 seconds, mean 2: 6.14 seconds], respectively), while the Biodex SD m‐CTSIB overall percentage demonstrated strong test‐retest reliability (ICC [3, 1] = .75 [mean 1: 1.18, mean 2: 1.18]). The LOS test duration showed moderate test‐retest reliability (ICC [3, 1] = .58 [mean 1: 38.55 seconds, mean 2: 37.10 seconds]), while the m‐CTSIB condition 1 showed poor test‐retest reliability (ICC [3, 1] = .24 [mean 1: 0.63, mean 2: 0.66]). Weak construct validity was found between TUG, FSST, and Biodex SD measures of LOS and m‐CTSIB ( r values = −0.15‐0.22). Conclusion: It is suggested that clinicians use more than one measure to assess different aspects of a patient's balance deficits to better guide treatment and intervention.

Background/Purpose: To identify the unique predictors of comfortable and fast gait speed in community-dwelling older adults using measures of physical performance (eg, lower extremity strength and balance), self-reported balance confidence, and global cognitive function. Methods: Demographic information was collected from 60 healthy, community-dwelling older adults older than 60 years. Participants completed the following assessments: Mini-Mental State Examination; Activities-Specific Balance Confidence Scale; 30-second Chair Stand (30-SCS); Functional Reach (FR); and gait speed (comfortable and fast) using the GAITRite system. Hierarchical linear regression was used to examine the relationship of both fast and comfortable gait speeds with functional performance (CST and FR), cognition (Mini-Mental State Examination), Activities-Specific Balance Confidence Scale, and demographic information (age, gender, and body mass index). Results and Discussion: Functional performance measures (30-SCS and FR) explained 55.4% and 64.7%, respectively, of the variance in comfortable and fast gait speed. Unique predictors for comfortable gait speed included 30-SCS, FR, and body mass index. Unique predictors of fast gait speed included 30-SCS, FR, gender, body mass index, and Activities-Specific Balance Confidence Scale score. These predictors explained 68.5% and 80.4% of the total variance in comfortable and fast gait speed, respectively. Global cognition was not a unique predictor of gait speed when performance measures were statistically controlled. However, the current study measured global cognitive status rather than the specific cognitive constructs, such as processing speed or executive function. Further research is needed to determine the role of cognition in the composition of gait speed. Conclusions: Gait speed is an important indicator for many outcomes such as fall risk, mortality, and functional status. Understanding that key variables of strength and balance comprise a large portion of gait speed allows clinicians to better direct their care and optimize rehabilitation outcomes. This study specifically used functional measures of strength and balance that can be easily implemented in the clinical setting.

Background and Purpose: Individuals with dementia (IWDs) experience difficulties across cognitive and functional domains. Nonpharmacological interventions aimed at reducing disability are greatly needed. Exercise is a low-cost and easily implemented approach, but investigation has yielded mixed evidence to date. The purpose of the current study was to evaluate a novel and innovative moderate-intensity functional exercise intervention for IWDs, which was developed using principles from exercise science along with a Strength-Based Approach, consisting of 24 home-based sessions. Methods: A randomized, controlled intervention trial with a 2-group pretest and posttest design was used with a sample of 23 community-dwelling IWDs (intervention group: n = 13; comparison group: n = 10). Average age of participants was 73.9 years (standard deviation, 9.1) with mild to moderate cognitive impairment (Mini-Mental State Examination, Mean = 20.8; standard deviation, 5.0). Results and Discussion: A 99.0% attendance rate indicated high adherence to the moderate-intensity exercise program. Efficacy was examined using multiple linear regression. Group assignment significantly predicted performance in key outcome measures, with IWDs from the intervention group improving in lower extremity strength (B = 5.92, t = 3.26, P = .004), balance (B = 4.04, t = 4.13, P = .001), and fast gait speed (B = .32, t = 2.61, P = .02). These findings indicated IWDs are able to participate in and benefit from a moderate-intensity functional exercise program, consisting of strength and balance activities. Conclusions: The current intervention used a Strength-Based Approach to facilitate implementation of exercise activities that could be completed by the sample. Therefore, integration of these techniques into mainstream clinical practice and research should be feasible with this patient population. Future research directions and implications of these findings also are discussed.

Background and Purpose: The Otago exercise program is a strengthening, balance, and walking program designed to decrease falls among community-dwelling older adults. Few studies have examined the effects of the Otago program in an assisted living environment. The purpose of the current study was to assess the effects of an Otago-based home exercise program in decreasing falls and the risk of falls among older adults living in an assisted living facility. Methods: A retrospective chart review of 30 individuals residing at either of 2 assisted living facilities in central Florida was undertaken. Participants had a mean age of 87 years, were at risk for falls as determined by the Tinetti Performance-Oriented Mobility Assessment (POMA), and were provided with an Otago-based intervention by home health physical therapy. The outcome measures were the number of falls in the previous year, the number of falls in the year following the intervention, and Tinetti POMA scores pre- and post-intervention. Results and Discussion: The mean (SD) number of falls significantly decreased from 1.4 (0.9) to 0.5 (0.7) fall per person per year after home health physical therapy with the tailored Otago based-exercise intervention. The intervention resulted in a statistically significant improvement in Tinetti POMA scores from 11.8 (2.5) to 17.6 (3.8). Conclusions: An Otago-based strengthening, balance, and walking home exercise program can potentially be used to decrease the number of falls and the risk of falling among older adults residing in an assisted living facility.