The application of inertial measurement units and functional principal component analysis to evaluate movement in the forward 3½ pike somersault springboard dive

Based on technological and analytical advances, the capability to more accurately and finitely examine biomechanical and skill characteristics of movement has improved. The purpose of this study was to use Inertial Measurement Units (IMUs) and Functional Principal Components Analysis (fPCA) to examine the role of movement variability (assessed via angular velocity), on 2 divers (1 international level; 1 national) performing the forward 3½ pike somersault dive. Analysis of angular velocity curves during ive-flight identified 5 fPCs, accounting for 96.5% of movement variability. The national diver’s scatter plots and standard deviation of fPC scores illustrated larger magnitudes of angular velocity variability across dive flight. For fPC1 and fPC3, magnitudes of SD variability were 282.6 and 201.5, respectively. The international diver illustrated more consistent angular velocity profiles, with clustering of fPCs scores (e.g., fPC1 & 3 = SD’s of 75.2 & 68.0). To account for lower variability in the international diver, the ability to better coordinate movement sequences and functionally utilise feedback in response to initiation of the somersault position is highlighted. Overall, findings highlight how both IMUs and fPCA can more holistically and finitely examine the biomechanical and skill characteristics of movement sequences with the capability to inform athlete development.     

Concurrent validity of the WISC-R using deaf norms and the Hiskey-Nebraska

Using a sample of 49 prelingually deaf youths, test results of the Hiskey-Nebraska Test of Learning Aptitude (H-NTLA) and the WISC-R Performance Scales for Deaf Children were compared. The H-NTLA was administered using the standard demonstration and/or pantomine instructions, while a total communication directional set was used with the WISC-R. A Pearson product-moment correlation of .913 between the two instruments demonstrated overwhelming commonality and supported the hypothesis that the WISC-R Performance IQ may provide a conveneint alternative to the Hiskey-Nebraska when the score is computed using the Anderson and Sisco deaf norms and a total communication approach for administration.     

Concerned Technology

Abstract

In May 1988 UNESCO set up a Regional Seminar ‐‐ ‘New Technologies for Handicapped in Special Education’ ‐‐at the Wenner‐Gren Centre at Sveavagen in Stockholm, Sweden. This short paper reflects initial draft statements on the conference and is included here to identify the extent of common apprehensions and expectations. It covers the areas of information services, studies and research activities, international co‐operation through staff exchanges and conference activities, and looks briefly at future trends.     

Teaching Philosophy and Methods of Restorative Care to Assisted Living Owners and Staff

To implement restorative care in assisted living facilities, staff need to understand the philosophy and learn methods to help residents maintain optimal function. In this study, the researchers developed a multimedia training program designed to teach staff how to encourage residents to increase their participation in dressing themselves. Researchers conducted a pilot test to measure the short-term effects of the training on 40 staff from two states. Program effects were measured by completing a survey developed by the researchers. Pretest scores were significantly related to gender (women as a group had higher scores than men). Results indicated significant gains in knowledge at posttest. In addition, 93% of participants described positive changes related to restorative care that they planned to make at their facility as a result of the training.