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BACKGROUND To compare hamstring to quadriceps muscle coactivity during level walking, stair ascent, and stair decent between individuals with and without knee osteoarthritis. METHODS In a cross-sectional study, subjects with grade II knee osteoarthritis (n = 26), healthy age- and gender-matched (n = 20) and healthy, young adults (n = 20) performed three(More)
OBJECTIVE To characterize the distribution of error in knee joint proprioception, quadriceps force accuracy and steadiness, and muscle strength in patients with knee osteoarthritis (OA). Special attention was paid to eccentric strength. METHODS We compared knee OA patients (n=20: 15 women, 5 men) with age- and sex-matched, symptom-free adults. Knee pain(More)
BACKGROUND This investigation examined the effect of a speeded, computer-controlled task on detecting differences in latency and accuracy of within-category name generation in adults having sustained a mild traumatic brain injury (MTBI). METHODS Twenty-four adults in acute recovery and 24 age-matched controls were instructed to view 72 pictures on a(More)
The present project investigated the electrophysiologic effects of auditory competition on components of the late auditory evoked potential (LAEP). A group of 12 young female listeners attended to deviant tones interspersed among frequent tones in one ear while trains of deviant and frequent tones of a different frequency were either present or absent at(More)
PRIMARY OBJECTIVE To compare confrontation-naming in adults with MTBI to a group of normal adults under increased processing load conditions. RESEARCH DESIGN A randomized block, repeated measures design was used to examine confrontation-naming response latency and accuracy using a computerized experimental program. METHODS AND PROCEDURES Twenty-four(More)
This study investigated stuttering frequency as a function of grammatical word type (i.e., content and function). Ten adults who stutter participated. Participants recited aloud a list of 126 words consisting of an equal number of content and function words, which were presented individually and visually via a laptop computer. Each word belonged to a single(More)
Using survey methodology, this exploratory study examined the attitudinal and perceptual dimensions of body image among 1,272 eighth- and ninth-grade males and females from higher and lower socioeconomic backgrounds in Buenos Aires, Argentina (n = 195), Guatemala City, Guatemala (n = 212), Havana, Cuba (n = 213), Lima, Peru (n = 218), Panama City, Panama (n(More)
Effects of active versus passive listening on the N1 and P2 components of the late auditory evoked potential were examined in 20 young adults following instructions to ignore and later to attend to different trains of frequent and deviant tones presented to one or both ears. To distinguish monaural from binaural neural refractory or recovery effects,(More)
This paper outlines a method of analysis that is well-suited to repeated measures designs. This method uses polynomial functions of time to characterize an outcome variable measured at several distinct time points on the same subjects. Profiles for different treatment groups may be compared using the appropriate interaction terms in an analysis of variance(More)
Objective. To compare on- and off-campus snacking patterns among college students pursuing degrees in health-related fields (HRFs) and nonhealth-related fields (NHRFs). Materials and Methods. Snack frequency questionnaire, scales measuring barriers, self-efficacy, and stage of change for healthy snacking, and a snack knowledge test (SKT). Participants. 513(More)