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General endurance in hemiplegic patients: comparison between healthy subjects and hemiplegics using the incremental stand-up exercise-load method.

OBJECTIVES: To evaluate the utility of our newly devised method (incremental stand-up exercise-load) to determine features of general endurance in hemiplegic patients. SUBJECTS/PATIENTS: Participants were 15 healthy adults and 15 hemiplegics, with 13 men and 2 women in each group. METHODS: To evaluate endurance, the subjects were required to assume a sitting position on a bed for 3 minutes and thereafter repeat standing-sitting (SS) movements. Successively increasing loads were imposed by increasing the frequency of repetition of the SS movements. An expired gas analyzer measured the magnitude of general endurance. Results were compared between the two groups using the anaerobic threshold (AT) as an indicator. RESULTS: The AT value was determinable in 80% of subjects in both groups. The AT values in hemiplegics (10.4 +/- 2.0 ml/min/kg) were significantly (p<0.01) less than those (17.3 +/- 3.0 ml/min/kg) in controls. Time of imposition of the load in hemiplegics (11 min 7 s +/- 13 min 45 s) were significantly (p<0.01) less than those (27 min 0 s +/- 7 min 36 s) in controls. CONCLUSION: This newly devised method that does not require special equipment is suitable to examine general endurance in hemiplegic patients.

Adult↗

Mathematical representation of solubility of amino acids in binary aqueous-organic solvent mixtures at various temperatures using the Jouyban-Acree model.

Applicability of a solution model for calculating solubility of amino acids in binary aqueous-organic solvent mixtures at various temperatures was shown. The accuracy of the proposed model was evaluated by computing mean percentage deviation (MPD) employing available solubility data of amino acids in binary solvents at various temperatures from the literature. The overall MPD (+/- SD) for correlation of solubility data was 16.5 +/- 8.8%. In addition, the equations calculating solubility of amino acids in binary solvent mixtures at a fixed temperature was revisited.

Algorithms↗

Meningitis: the influence of routine otolaryngologic consultation on morbidity and mortality in 290 cases.

A prospective study was designed to obtain data on all meningitis patients admitted to a large county Communicable Disease Unit. The epidemiologic and clinical features of 290 cases were analyzed to ascertain the effect of routine O.R.L. consultation on the morbidity and mortality of this disease. The results of physical examination provided current statistics as to the existence of ear, nose, and throat diseases associated with meningitis.

Adolescent↗

Cytologic examination of the nasal mucosa in formaldehyde-exposed workers.

A cross-sectional study of 80 individuals at three locations was undertaken to evaluate the health effects of long-term exposure to formaldehyde in a phenol-formaldehyde impregnating process and to develop a useful protocol for health surveillance of formaldehyde-exposed workers. Results of physical examinations showed a statistically significant prevalence of mucosal irritation in formaldehyde-exposed workers, particularly those with recent exposure. Cytologic examination of exfoliated nasal cells showed atypical squamous metaplasia, which was found to be a function of age. There was no statistical relationship to formaldehyde exposure.

Adult↗

Vaginal Chlamydia trachomatis prevalence in sexually abused prepurbertal girls.

The prevalence rate of Chlamydia trachomatis in the vagina of prepubertal sexually abused children was examined. Additionally, the culture technique was compared to direct immunofluorescence assay (DFA) for diagnosing chlamydial infections in the vaginas of prepubertal children. The study group included 50 consecutive prepubertal girls examined for sexual abuse in an urban pediatric hospital's emergency room. Vaginal swabs were obtained for culture and direct immunofluorescence assays of C trachomatis and for gonorrhea culture. Of these, 8/47 (17%) of the Chlamydia cultures, 4/43 (9.3%) of the direct immunofluorescence assay specimens, and 0/49 gonorrhea cultures were positive for Chlamydia. All patients with positive findings by direct immunofluorescence assay also had positive chlamydial cultures. Of the four other patients with positive cultures for Chlamydia, two had negative findings by direct immunofluorescence assay and two had inconclusive results reported. Twenty-nine patients had a syphilis serologic study performed, and all had negative results. There was no significant difference between the Chlamydia-positive and -negative groups with regards to age, race, nature of the abuse, frequency of abuse, and symptoms or findings on physical examination. Although not statistically significant, children with cultures positive for C trachomatis reported rectal penetration five times and vaginal penetration twice as often as those children with C trachomatis-negative results. This study demonstrates a significant prevalence of vaginal chlamydial infections in sexually abused children. Vaginal cultures for C trachomatis should be included in the medical evaluation of sexually abused girls. The culture technique was superior to the direct immunofluorescence assay in this group of patients.

Bacteriological Techniques↗