Tracy A. Dierks

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BACKGROUND AND PURPOSE Balance impairment is common after stroke; modified yoga may be able to improve balance and other important poststroke variables. Scientific-evidence is needed to support such treatment interventions. The purpose of this study was to assess the impact of a yoga-based rehabilitation intervention on balance, balance self-efficacy, fear(More)
STUDY DESIGN Cross-sectional experimental laboratory study. OBJECTIVES To investigate the relationships between hip strength and hip kinematics, and between arch structure and knee kinematics during prolonged treadmill running in runners with and without patellofemoral pain syndrome (PFPS). BACKGROUND Hip weakness can lead to excessive femoral motions(More)
Runners rarely run to the point of maximum fatigue or exhaustion. However, no studies have investigated how the level of exertion associated with a typical running session influences running mechanics. The purpose of this study was to investigate the effects that running in an exerted state had on the kinematics and joint timing within the lower extremity(More)
OBJECTIVES To (1) examine the relationships between multiple poststroke mobility variables (gait speed, walking capacity, balance, balance self-efficacy, and falls self-efficacy) and activity and participation; and (2) determine which poststroke mobility variables are independently associated with activity and participation. DESIGN This is the primary(More)
BACKGROUND Abnormal joint coupling is thought to be related to overuse injuries in runners. However, researchers do not yet know what constitutes normal joint coupling during running, which makes abnormal coupling difficult to define. METHODS Lower extremity kinematics were collected from 40 recreational runners during stance. Joint coupling methods were(More)
BACKGROUND It has been suggested that dynamic foot and ankle mechanics predispose individuals with CAI to repetitive episodes of the ankle ``giving way.'' Plantar pressure variations during a walking gait have been detected in those with CAI, but more dynamic conditions for analysis are needed. The purpose of this study was to evaluate plantar pressure(More)
BACKGROUND Fatigue and pain are common after stroke, potentially impacting stroke recovery. OBJECTIVE This study examines the frequency and impact of fatigue and pain in people with chronic stroke. METHOD Seventy-seven people with chronic stroke completed a one-time assessment consisting of a battery of self-report and performance tools to describe and(More)
BACKGROUND The relationship between lower extremity mechanics and injury is not well understood. However, joint coupling studies are beginning to emerge, which may lend further insight into running biomechanics. PURPOSE To provide a current review of the research examining lower extremity joint coupling in running. SUMMARY There are various techniques(More)
PURPOSE Investigate lower extremity kinematics in runners with patellofemoral pain (PFP) syndrome during a prolonged run. METHODS For this study, 20 runners with PFP and 20 uninjured controls performed a prolonged run on a treadmill at a self-selected pace. The run ended based on HR, perceived exertion, or level of knee pain. Kinematic data were analyzed(More)
PURPOSE The purposes of this mixed-methods study were to (1) investigate whether walking faster or walking farther was more important for getting "out and about" to persons with chronic stroke and (2) explore explanations for walking preferences. METHOD A convenience sample of 77 adults with chronic stroke completed questionnaires and walking outcomes in(More)