And indeed there will be time To wonder " Do I dare? " and, " Do I dare? " Time to turn back and descend the stair. ...

Background Stair climbing demands, as compared to walking level, a greater range of motion in the lower extremity accompanied by about six times more load on knee joint [1]. Consequently, pain while climbing stairs is the first complaint in patients with knee osteoarthritis (OA) [2]. The use of lateral wedge insoles aims to decrease medial knee compartment loading by reducing the peak external ...

We present the first controller that allows our small hexapod robot, RHex, to descend a wide variety of regular sized, “real-world” stairs. After selecting one of two sets of trajectories, depending on the slope of the stairs, our open-loop, clock-driven controllers require no further operator input nor task level feedback. Energetics for stair descent is captured via specific resistance values...

INTRODUCTION. Patients with posterior cruciate ligament (PCL) deficient sometimes experience giving way during stair descending, although they do not usually have disability in performing most of activities of daily living (ADL). This fact suggests that the patients should have adaptation mechanism to lack of posterior stability during the activity. However the mechanics of PCL deficient knee d...

INTRODUCTION Occupational exposure to heavy lifting and stair climbing are associated with radiographic hip osteoarthritis (OA). This study examined whether these activities are associated with early structural hip joint changes in a community-based population. METHODS In total, 198 community-based people with no history of hip disease, including OA, had 3.0 T-magnetic resonance imaging (MRI)...

STUDY DESIGN Cross-sectional case-control design. BACKGROUND Although the etiology of patellofemoral pain syndrome (PFPS) is not completely understood, there is some evidence to suggest that hip position during weight-bearing activities contributes to the disorder. OBJECTIVE To compare the knee and hip motions (and their coordination) during stair stepping in female athletes with and withou...

Despite its apparent popularity in fifteenth-century Ireland—as attested by its presence in eight manuscripts—Stair Fortibrais, the Irish adaptation of the twelfth-century chanson de geste Fierabras has received very little scholarly attention. This fact proves especially unfortunate since the text possesses particular relevance for two important trends in recent scholarship, one concerning Cel...