CONTEXT Control of the trunk segment in landing has been implicated as a contributing factor to the higher incidence of anterior cruciate ligament injuries in females than in males. Investigating the sex-specific abdominal activation strategies during landing lends insight into mechanisms contributing to control of the trunk segment. OBJECTIVE To examine the abdominal activation strategies us...

Quadrotor UAVs are one of the most preferred type of small unmanned aerial vehicles because of the very simple mechanical construction and propulsion principle. However, the nonlinear dynamic behavior requires a more advanced stabilizing control and guidance of these vehicles. In addition, the small payload reduces the amount of batteries that can be carried and thus also limits the operating r...

In this paper, we introduce the motivation for and design of and integrated flight instrument display component for use during vertical landing and hover operations of a future Lunar lander to support the vision to return to the Moon. A description of the human-system interface design approach to include a cognitive task analysis is outlined. The results of the analysis and the design of the re...

We propose JackVR, an interactive immersive simulation prototype aiming to train domain experts to land jackup oil rigs. Jackup rigs are among the most common offshore drilling units for extracting oil, but the process of landing the rigs is mostly challenging because of the unpredictable sea and weather conditions, lack of clear vision, and the possible risk of damaging the ocean floor. We des...

The aim of this study was to investigate the changes in activation of the musculoskeletal system in response to soft-tissue vibrations with different compression conditions (externally applied) in a drop-jump landing task. Twelve trained male participants were instructed to perform drop-jump landings from 3 heights in compression shorts (CS) and regular shorts without compression (CC). External...

The present study addresses the question of how objects are localized across saccades. In a task requiring participants to compare the location of a post-saccadic probe with the pre-saccadic target, we investigated the roles of saccade landing site and post-saccadic probe location. Saccade landing sites vary from trial to trial because of oculomotor error but can also be shifted by saccadic ada...

This paper presents recent research efforts to extend the functionality of unmanned aerial vehicles beyond passive observation to active interaction with and manipulation of objects. The archetypical aerial manipulation task — grasping objects during flight — is difficult due to the unstable dynamics of flying vehicles and limited positional accuracy currently demonstrated by hovering vehicles....

Visual stimuli may be selected for priority at different stages within the processing stream, depending on how motivationally relevant they are to the perceiver. Here we examine the extent to which individual differences in motivational relevance of task-irrelevant images (spider, crash, baby, food and neutral) guide eye-movements to a simple "follow the cross" task in 96 participants. We found...