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At least 595 records · Page 33Linked to original sources
PubMed1983

[Evaluation of physical fitness following uncomplicated myocardial infarct by bicycle ergometry in horizontal and vertical position].

For an increasingly early mobilisation after uncomplicated myocardial infarction, the stress tests appraised the individual physicalal aptitude in supine and upright positions without incident, in a simple and objective way. To complete this evaluation, the calculation of an energetic index EI was proposed as soon as the initial level of 25 watts during cycloergometric symptom-limited stress tests in 17 male patients (increment of 25 watts for each 6 minutes and interval of one hour between the two positions). The pulmonary wedge pressure (Swan Ganz) at 15 mmHg in upright position as soon as 25 watts separated the subjects into two groups GI (N = 5) and G II (N = 12). EI 25 W had a value of 33 +/- 4 for GI and of 48 +/- 7 for GII (p less than 0.001). In the following level, EI 50W had a value of 83 +/- 14 for GI and of 109 +/- 23 for GII (p less than 0.01). Although the heart rate HR reached at the last level (expressed in % of the maximal theoretical rate) and the systolic arterial tension SAT were no different between the two groups, the subjects of GI reached a mean load of 68 watts and these of GII of 109 watts (p less than 0.01). The index EI, calculated in a simple and immediate way with HR, SAT, W and morphometric data (height, area surface) would help to evaluate the physic aptitude. Because of its harmlessness, this stress test at low load in the two positions might be repeated to define an developmental profile for each person. The prognostic value of such an index remain to be specified.

Adult↗
PubMed1983

[Early ergometry following acute myocardial infarction?].

One hundred and twenty patients underwent a symptom limited submaximal exercise test (SSET) 8-40 days after acute myocardial infarction. No complications occurred during the exercise test. Sixty-two patients (52%) showed a normal SSET. ST-segment depression (greater than or equal to 1 mm) was detected in 21 (17.5%). Dyspnea, fatigue, inadequate blood pressure response and angina pectoris without changes in ST-segments were the end-point in 33 patients (27.5%). Furthermore, significant premature ventricular contractions occurred in four cases (3%) and limited the SSET. An SSET soon after myocardial infarction can be performed without risk. High specificity of ST-segment depression in lead V5 was confirmed by the coronary angiographic findings. Apart from ST-segment depression there were other, more frequent nonspecific end-points of SSET which require further examination regarding their prognostic value.

Aged↗
PubMedDate not supplied

[Systolic time interval, stress ergometry and 133-xenon clearance in obesity].

Systolic time intervals were measured with 55 middle aged healthy normal weight and 76 healthy overweight probands in two positions (standing and lying). In 39 adipose patients and 55 normal weight subjects an ergometric work was carried out. A significant difference between normal and extremely adipose subjects without cardiac diseases could not be noticed with regard to the preejection index. Preejection period and left ventricular ejection time showed significant differences in both positions between normal and overweight probands, independent of blood pressure. In overweight patients there was a significantly decreased heart work load. The preejection index of adipose patients with a work load below 76 watts amounted to a mean value of 1,04. A work load of 100 watts was reached by only half of the adipose patients. In 32 adipose subjects with a heart work load above 75 watts the regulation of heart-rate and blood-pressure was not different from that of normal weight persons. Muscle blood flow was measured by 133Xenon-Clearance after Lassen et al. The measurement of the 133Xenon-Clearance of the arm muscle at rest in 29 adipose patients resulted in significantly lower values compared with normal weight persons.

Adult↗
PubMed1984

Relation between oxygen uptake & power output during wheelchair ergometry in tetraplegics and paraplegics.

Twenty-one disabled subjects, who use a wheelchair as a normal means of locomotion, completed a continuous, increasing workrate test to subjective exhaustion on a wheelchair ergometer. The subjects were classified into tetraplegic (n = 8), high lesion paraplegic (n = 6), and low lesion paraplegic (n = 7) groups, and linear regression analyses to predict oxygen uptake (l/min) from power output (watts) were carried out for each group. Tetraplegics exhibited a non-significant correlation (r = .21) between power output and oxygen uptake. This was possibly due to their low maximal attainable oxygen uptake and limited range for these variables. A significant relationship was noted in both paraplegic groups (r = .93), and analysis indicated a lack of significant difference (p = .88) in the regression equations between the two groups. The high and low lesion paraplegic group measures were combined to produce a single regression equation given by VO2 (l/min) = .108 + .0267 X Power (watts).

Disability Evaluation↗
PubMed1984

[Complications of the use of microcatheters using Grandjean's technic in ergometry].

The method of microcatheterism was described in the now usual form first by Grandjean in 1967. It offers an appropriate information about pressures in the pulmonary circulation at rest and during stress. This report gives a comprehensive survey about the complications with this method in a time range of seven years, from 1976 until 1982, in 4901 patients. The total rate of complications was very low (0.67%). Compared with a study about complications with Swan-Ganz-catheters in similar patients from Roskamm and co-workers, we found in our investigation a lower rate of dangerous arrhythmias. We conclude that microcatheterism is a simple, and cheap method, which is poor of risks. It is suitable ideally either for screening and control investigations or for the quantification of a cardiopulmonary disease.

Arrhythmias, Cardiac↗