Elderly adults have a diminished movement capacity due to physiological and neurological declines associated with advancing age. Previous research suggests that elderly adults use altered neuromuscular patterns to conduct activities of daily living (ADLs). Limited research has addressed these altered activation strategies in obstacle clearance, stair ascent and stair descent. The purpose of thi...

AbstractBackgroundentity. It is hypothesized to result from abnormal patellar tracking caused by altered motorcontrol. Deficit in neuromotor control of the core may be a remote contributing factor to thedevelopment of PFP. Application of reliable EMG measures would be helpful to handle thistheory. Therefore, the purpose of this study was to determine the test-retest reliability of thecore and v...

OBJECTIVE The purpose of this study was to investigate the role of hip muscles in patellofemoral pain (PFP), specifically by investigating neuromotor control, strength and range of motion of the hip muscles. DESIGN Cross-sectional. SETTING University laboratory. PATIENTS Ten participants diagnosed with PFP and 27 asymptomatic controls were recruited, using standard inclusion and exclusion...

OBJECTIVES To examine the validity and reliability of the Fitbit Flex against direct observation for measuring steps in the laboratory and against the Actigraph for step counts in free-living conditions and for moderate-to-vigorous physical activity (MVPA) and activity energy expenditure (AEE) overall. METHODS Twenty-five adults (12 females, 13 males) wore a Fitbit Flex and an Actigraph GT3X+...

PURPOSE This study compared the kinematics and kinetics of the knee joint during traditional step-over-step (SOS) and compensatory step-by-step lead-leg (SBSL) and trail-leg (SBST) stair ambulation patterns. METHODS Seventeen (M:9) healthy adults completed five trials of ascent and descent using three different stepping patterns: 1) SBSL, 2) SBST, and 3) SOS. Kinematics and kinetics were coll...

Compliant elements overcome many of the shortfalls using 3D printing to create mechanisms, as print artefacts such ‘stair stepping’ can cause issues with conventional joints. One key decisions when designing a compliant mechanism is choosing either concentrate compliance into small region that resembles hinge, or distribute it over larger area. This research details simulated deformation and st...

The multifunctional above-knee prosthesis WLP-7R (Waseda Leg Prosthesis - type 7 Refined) described in this study allows amputees to descend and ascend stairs with no external power sources. With the hydraulic circuit mounted in the shank, the ankle joint and the knee joint mutually conterbalance during stance phase in stair walking as well as level walking so that the following performances ar...

PURPOSE/BACKGROUND Historically, patellofemoral pain syndrome (PFPS) has been viewed exclusively as a knee problem. Recent findings have suggested an association between hip muscle weakness and PFPS. Altered neuromuscular activity about the hip also may contribute to PFPS; however, more limited data exist regarding this aspect. Most prior investigations also have not concurrently examined hip a...

ahmad foad najm is one of the prominent stair popets in egypt’s resistance literature class of najms stair is political and social stair and he uses it as a scittle to express his political and social stews. he employs two basic patterns in his stair structures.the clear stair in which the poet criticizes the political and social groups of arabs world and the other one is the reverse stair in w...