Roy W Osborn

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STUDY DESIGN Prospective, single-group, repeated-measures design. OBJECTIVE To analyze the longissimus thoracis and lumbar multifidi muscle activity with surface electromyography (EMG) during exercises used in back rehabilitation programs. BACKGROUND Physical therapists use a variety of exercises when rehabilitating patients with low back pain (LBP).(More)
The purpose of this stratified randomized trial was to determine the physical and psychological effects of continuous, one-to-one professional support on childbirth outcomes. Data were gathered during prenatal and postpartum interviews with, and from the medical records of, 103 low-risk women. All subjects had attended one of two types of prenatal education(More)
Despite a paucity of evidence, uphill running has been touted as a sport-specific resistance-to-movement training tactic capable of enhancing metabolic, muscular, and neuromuscular processes in distance runners in ways similar to previously established resistance-to-movement training methods, such as heavy and/or explosive strength training and plyometric(More)
The purpose of this study was to compare the electromyographic (EMG) amplitudes of the quadriceps femoris (QF) muscles during a maximum voluntary isometric contraction (MVIC) to submaximal and maximal dynamic concentric contractions during active exercises. A secondary purpose was to provide information about the type of contraction that may be most(More)
Eighty-eight cases with newly diagnosed carcinoma of the endometrium and 177 age-matched neighborhood controls were interviewed to test the hypothesis that exogenous estrogens lead to an increased risk of endometrial cancer. Forth-five per cent of the cases and 22% of the controls reported a history of estrogen use which yielded an odds ratio of 2.9(More)
One hundred three women who were randomized to receive either routine nursing care (controls) or routine care plus one-to-one support by an experienced monitrice (experimental) were compared as to obstetric outcomes and their memories of types of support they had from nurse, monitrice, and mate. Women assigned a monitrice arrived at the hospital(More)
Uphill running represents a frequently used and often prescribed training tactic in the development of competitive distance runners but remains largely uninvestigated and unsubstantiated as a training modality. The purpose of this investigation included documenting the effects of uphill interval training compared with level-grade interval training on(More)