Biomedical subjects
Publications and source records attributed to S K Jensen.
Stretching is a regular item in training programmes and it is employed to increase flexibility, to prevent muscle tenderness, overuse injuries and strains. Stretching is carried out by stretching muscles and connective tissue to the extreme positions of joints. A review of stretching exercises based on the literature is presented in relation to prevention of injuries. The various techniques employed are reviewed.
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Over a 9-month period 228 men were admitted for acute urinary retention to six different casualty wards in the Copenhagen area. The patients were followed in the corresponding urological departments for one year. Twenty-seven variables were registered for each patient. The cumulative rate of recurrent retention was 56% after one week and 68% after one year. Factors predictive of preserved voiding ability were a retained volume less than 500 ml, a known event provocative of acute retention, and a maximum flow rate of more than 5 ml/s after the retention. The maximum flow rate measured within the first week after the retention was reliable within the follow-up period if the voided volume was 150 ml or more. The etiology of the acute retention was infravesical obstruction in 90% of the patients, and 85% required subsequent surgical treatment. Predictive of surgical treatment for infravesical obstruction were recurrent urinary retention within one week, a volume of retention of more than 500 ml, the absence of a provocative situation prior to the retention episode and nocturia twice or more.
Over a 9 month period 18 women were admitted for acute urinary retention to six different Copenhagen hospitals, serving a population of approximately 700,000 people. Urodynamically 9 patients had underactive detrusor function, 2 had infravesical obstruction and 3 had both underactive detrusor function and infravesical obstruction. In 4 patients bladder and urethral function were not classified. In 10 patients a provocative event preceded the retention episode. Eleven patients developed recurrent retention within 3 months and 7 patients had persistent severe obstructive voiding problems. Best prognosis was found for patients with correctable infravesical obstruction and for patients with minimal symptoms prior to the retention episode.
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This investigation, based on 139 consecutive patients subjected to barium enema, represent an attempt to supplement general clinical experience with exact data on the diagnostic value of radiographic examination of the colon. About one half of the patients suffered from diseases outside the gastrointestinal tract, and it is suggested that further research is needed to explain the complaints in this large group of patients. The age and sex of patients referred for examination were of special significance. The diagnostic value of the symptomatology is analysed, but no symptoms permit a prediction of the outcome of the x-ray examination.
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A survey of all amateur boxing matches in Denmark was made during a 3 year period. Data was gathered on means by which bouts were ended by the referee or attending physician, such as knock outs or blows to the head. A total of 5272 matches were fought: 3240 were senior matches (over age 19) and 2032 were junior matches (ages 17 to 19). Prophylactic intervention--unlimited length of hand bandage, voluntary use of boxing helmets, and heavier gloves for boxers greater than 149 pounds--did not affect the frequency of matches being stopped because of knock outs or blows to the head.
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