Donald Holbert

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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 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)
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)
OBJECTIVE To study whether using 95% humidified, heated carbon dioxide (CO(2)) at laparoscopy reduces pain compared with dry, heated CO(2). METHODS Patients were randomly assigned to either heated, 95% humidified CO(2) (study group) or heated, dry CO(2) (control group) during laparoscopy. Pain control was achieved per standard protocols. Pain scales were(More)
BACKGROUND As part of a Food and Drug Administration trial, mitral repairs were performed in 38 patients using the robotic da Vinci surgical system (Intuitive Surgical, Inc, Mountain View, CA). Prospectively, we evaluated safety and efficacy in performing both simple and complex mitral repairs. METHODS Eligible patients had nonischemic moderate to severe(More)
BACKGROUND Our study evaluates a series of video-assisted minimally invasive mitral operations, showing safe progression toward totally endoscopic techniques. METHODS Consecutive patients with isolated mitral valve disease underwent either manually directed (n = 55) or voice-activated robotically directed (n = 72) video-assisted mitral operations. Cold(More)
The effect of an effortful swallow on the healthy adult esophagus was investigated using concurrent oral and esophageal manometry (water perfusion system) on ten normal adults (5 males and 5 females, 20–35 years old) while swallowing 5-ml boluses of water. The effects of gender, swallow condition (effortful versus noneffortful swallows), and sensor site(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)
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)
OBJECTIVE We studied the association between the use of oxygen cannulas (OCs) and (1) nasal bleeding and (2) coagulase-negative staphylococcal sepsis (CNSS). STUDY DESIGN Review of care sheets, with chi(2) or sign-test group comparisons. RESULTS Infants treated with OCs were suctioned more frequently (2.6 vs 1.3 times per day, p<0.001), and had more(More)