INTRODUCTION The foot changes with age from wide and short in neonates to intermediate in teenagers. OBJECTIVE To describe changes in mean length and width of the foot during fast and slow phases of growth between the age of 4 and 18 years in the female and male population. MATERIAL AND METHODS The study was done in 9804 girls and 8699 boys aged 4 to 18 years, randomly selected from kinderg...

A robust technique for determining the wing kinematics, body position and attitude of a free-flight dragonfly is described. The new method is based on a projected comb-fringe technique combined with the natural landmarks on a dragonfly, allowing us to establish the local body-centered coordinate system with high accuracy, and to measure the body attitude at any instant. The kinematic parameters...

Two experiments are reported that were set up to examine the spatial-temporal boundaries of postural instability in upright stance as a function of age (60-96 years) and postural conditions. Subjects stood on a force platform under different experimental conditions (vision/no vision and arms up/down) so that the effect of age on key dynamic properties of postural stability could be determined. ...

An experiment investigated systematic pointing errors in horizontal movements performed without visual feedback toward 48 targets placed symmetrically around two initial hand positions. Our main goal was to provide evidence in favor of the hypothesis that amplitude and direction of the movements are planned independently on the basis of the hand-target vector (vectorial parametric hypothesis, V...

[This corrects the article on p. 520 in vol. 10, PMID: 27818629.].

Objective A small-scale exploration of the use of video analysis to study robberies. We analyze the use of weapons as part of the body posturing of robbers as they attempt to attain dominance. Methods Qualitative analyses of video footage of 23 shop robberies. We used Observer XT software (version 12) for fine-grained multimodal coding, capturing diverse bodily behavior by various actors simu...

We show that fast bimanual coordinative feedback responses can be reversed with changes in task goals. Participants moved a flexible virtual object across a finish line with an upward movement of both hands. In one condition, the middle of the object had to be aligned with a spatial goal at the end of the movement. In the second condition, the object had to be kept at a specific length. During ...

BACKGROUND Improper workstation, work procedures and tools are found to be the risk factors for the development of musculoskeletal disorders among the informal sector workers of the developing countries. Low cost ergonomic interventions can effectively improve such adverse conditions. CASE PRESENTATION In the present article some studies related to design interventions in different informal a...