Viviene A Temple
Eliane Mauerberg-deCastro, Carmila Souza Lucena, Bruna W. Cuba, Rosana C. Boni, Debra Frances Campbell, and Renato Moraes
This study assessed the effects of haptic information on the postural control systems of individuals with intellectual disabilities (ID), through the use of a nonrigid tool that we call the “anchor system” (e.g., ropes attached to graduated weights that rest on the floor). Eleven participants with ID were asked to stand, blindfolded, on a balance beam placed at two heights (10 and 20 cm), for 30 s, while using the anchor system at two weights. The lighter anchor weight appeared to improve the individuals’ balance in contrast to a control task condition; therefore, we concluded that haptic sensitivity was more significant in helping to orient the body than was the anchor’s mechanical support alone.
Carlos M. Cervantes and David L. Porretta
This review examined the literature on physical activity measurement among individuals with disabilities utilizing Yun and Ulrich’s (2002) view on measurement validity. Specific inclusion criteria were identified. The search produced 115 articles; however, only 28 met all specified criteria. Findings revealed that self-reports and accelerometers were the most common approaches to measuring physical activity, and individuals with orthopedic impairments, those with mental retardation, and those with other health impairments received the most attention. Of the 28 articles, 17 (61%) reported validity and reliability evidence. Among those studies reporting validity, criterion-related evidence was the most common; however, a number of methodological limitations relative to validity were observed. Given the importance of using multiple physical activity measures, only five (18%) studies reported the use of multiple measures. Findings are discussed relative to conducting future physical activity research on persons with disabilities.
Hyun-Kyoung Oh and Francis M. Kozub
The study was designed to estimate the psychometric properties of Hastings and Brown’s (2002a) Difficult Behavior Self-efficacy Scale. Participants were two samples of physical educators teaching in Korea (n = 229) and the United States (U.S.; n = 139). An initial translation of the questionnaire to Korean and pilot study were conducted along with the larger study using a confirmatory factor analysis procedure. Internal consistency estimates (weighed Omega) for the five-item scale were 0.88 both the Korean and U.S. samples. The average variances extracted for the one factor were 0.59 for the total data set and 0.57 each for the Korean and U.S. samples. Confirmatory factor analysis supported a five-item, unidimensional model for self-efficacy for the total sample: Goodness of Fit Index (GFI) = 0.97, Nonnormed Fit Index (NNFI) = 0.95, Comparative Fit Index (CFI) = 0.98, and Standardized Root Mean Square Residual (SRMR) = 0.03. Only the Root Mean Square Error of Approximation (RMSEA = 0.12) fell below criterion levels of acceptable fit, with similar fit indices occurring in separate analyses of the Korean and U.S. samples. Invariance testing across the two samples supported metric invariance (similarity of factor loadings) but not scalar invariance (U.S. means higher on all five items). The factor structure for the self-efficacy scale provides an initial estimate of validity and internal consistency for use with different teacher groups.
Iva Obrusnikova, Martin Block, and Suzanna Dillon
Theory of Planned Behavior (Ajzen, 1991) was used to elicit salient behavioral, normative, and control beliefs of children without disabilities toward playing with a hypothetical peer with a disability in general physical education. Participants were 350 elementary and middle school students who completed two questionnaires. Questionnaires were assessed for content validity. Participants provided more affective (68%) than instrumental (32%) responses for favorable behavioral beliefs and more instrumental (76%) than affective (24%) responses for unfavorable beliefs. Peer social pressure was prevalent in favorable (69%) and unfavorable (99%) responses. Social pressure significantly varied across five grades, χ2(4, N = 448) = 40.51, p < .01. Participants responded many factors in the class would positively (76%) or negatively (89%) influence the behavior.
Chris Button, Stuart Moyle, and Keith Davids
There has been no direct attempt to evaluate whether gait performed overground and on a treadmill is the same for lower limb amputees. A multiple case study approach was adopted to explore the degenerate movement behavior displayed by three male amputees. Participants walked overground at a self-selected preferred pace and when this speed was enforced on a treadmill (50 stride cycles per condition). The extremities of motion (i.e., maximum flexion) for the hip and knee joints differed between conditions (0.2–3.8°). For two participants, the temporal asymmetry of gait was reduced on the treadmill. Initial data suggest that research on amputees simulating overground walking on a treadmill might need to be interpreted with some caution.
Daniel W. Tindall, Iva Obrusnikova, Aaron Moffett, Phil Esposito, and Kevin M. Casebolt
Yee-Pay Wuang, Chih-Chung Wang, Mao-Hsiung Huang, and Chwen-Yng Su
This study investigated the effectiveness of a 20-week Simulated Developmental Horse-Riding Program (SDHRP) by using an innovative exercise equipment (Joba®) on the motor proficiency and sensory integrative functions in 60 children with autism (age: 6 years, 5 months to 8 years, 9 months). In the first phase of 20 weeks, 30 children received the SDHRP in addition to their regular occupational therapy while another 30 children received regular occupational therapy only. The arrangement was reversed in the second phase of another 20 weeks. Children with autism in this study showed improved motor proficiency and sensory integrative functions after 20-week SDHRP (p < .01). In addition, the therapeutic effect appeared to be sustained for at least 24 weeks (6 months).