it is well established that the active continuous recovery is preferred to passive recovery. but the active period of this recovery is long (20-60 minutes) and the intensity is not controlled. furthermore, most severe trial exercises need short-term active recovery for better performance so that the athletes can return more rapidly to their normal state and more desirable performance. however, ...

1 Motivation Many large terrestrial structures—towers, bridges, construction scaffolds—are sparse assemblies of rigid bars connected together at structural nodes. This is also true of many in-space structures such as antennae, solar panel supports, and space-station members. A long-term application of truss climbing robots is automated assembly, repair, and inspection of such truss-like structu...

In the adult cerebellum, the glutamate receptor delta2 subunit (GluRdelta2) is selectively targeted to the spines of the distal Purkinje cell dendrites, the spiny branchlets, that are innervated by the parallel fibers. Although GluRdelta2 has no known channel function, it is presumed to be involved in the formation and stabilization of these synapses. After block of electrical activity by tetro...

Climbing robots work in a special vertical environment and use mobility against gravity (Zhang, 2007). They are a special potential sub-group of mobile technology. In the recent 15 years, there have been considerable achievements in climbing robot research worldwide by exploring potential applications in hazardous and unmanned environments (Virk, 2005). The typical application of climbing robot...

In this review of research on climbing expertise, we focus on different measures of climbing performance, including spatiotemporal measures related to fluency and activity states (i.e., discrete actions), adopted by climbers for achieving overall performance goals of getting to the end of a route efficiently and safely. Currently, a broad range of variables have been reported, however, many of ...

For a biped climbing robot with dual grippers to climb poles, trusses or trees, feasible collision-free climbing motion is inevitable and essential. In this paper, we utilize the sampling-based algorithm, Bi-RRT, to plan single-step collision-free motion for biped climbing robots in spatial trusses. To deal with the orientation limit of a 5-DoF biped climbing robot, a new state representation a...

Ecological theories of adaptive radiation predict that ecological opportunity stimulates cladogenesis through its effects on competitive release and niche expansion. Given that key innovations may confer ecological opportunity, we investigated the effect of the acquisition of climbing adaptations on rates of cladogenesis in a major avian radiation, the Neotropical bird family Furnariidae, using...

Successful climbing by vines not only prevents shading by neighbouring vegetation, but also may place the vines beyond ground herbivores. Here we tested the hypothesis that herbivory might enhance climbing in a vine species, and that such induced climbing should be greater in the shade. We assessed field herbivory in climbing and prostrate ramets of the twining vine Convolvulus arvensis. We eva...

OBJECTIVES To determine the prevalence and nature of rock-climbing injuries, and the factors associated with these injuries. DESIGN A retrospective cross-sectional study. SETTING Rock climbers were recruited at five outdoor and six indoor climbing venues in the UK. PARTICIPANTS 201 active rock climbers (163 male, 38 female climbers) aged 16-62 years. ASSESSMENT OF RISK FACTORS Rock clim...