Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “Ergometry”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 649 records · Page 36Linked to original sources
PubMed1995

[Ergometry in the diagnosis and prognosis of arterial hypertension].

Blood pressure is a dynamic parameter and stress testing constitutes a diagnosis and prognostic method, usually little used, but it lets you know if blood pressure control during exercise is correct. Several studies have demonstrated the predictive value of arterial hypertension when resting, when exaggerated blood hypertension exists during exercise. During the present paper last studies are reviewed about this issue in the world press. We can extract the following conclusions: Stress testing is useful, in general, for the diagnosis, prognosis and therapeutic control of the arterial hypertension besides higher reproducibility and existing a good correlation between maximum blood pressure during exercise and the left ventricular hypertrophy.

Blood Pressure↗
PubMed1995

Metabolic and perceptual responses during arm and leg ergometry in water and air.

This investigation determined metabolic (i.e., kcal.min-1) responses and ratings of perceived exertion (RPE) for varying pedal-crank rates (PCR) and power outputs (PO) during arm and leg exercise in thermoneutral air (TA) and water (TW). Nine males (age 28.2 yr; leg cycle VO2peak 3.4 l.min-1) undertook the 24 exercise trials. During the TW trials kcal.min-1 were less (P < 0.05): at 50 W for 40 (X +/- SE; 10.9 +/- 0.8) than 50 (8.2 +/- 0.2), 60 (8.2 +/- 0.6), or 70 (7.4 +/- 0.3) rev.min-1 and at 100 W for 40 (15.2 +/- 0.7), 50 (14.0 +/- 1.1), and 60 (13.8 +/- 0.7) than 70 (12.1 +/- 0.5) rev.min-1. All other comparisons of kcal.min-1 between PCR at the three PO were not significant. During the TA trials kcal.min-1 were less (P < 0.05): at 50 W for 40 (11.4 +/- 0.3) than 60 (9.7 +/- 0.4) and 70 (9.1 +/- 0.4) rev.min-1 and for 50 (11.0 +/- 0.5) than 70 rev.min-1. During the TW trials: RPE-Arms and RPE-Overall at 50 W were lower (P < 0.05) for 40 (8.1 +/- 0.5; 8.3 +/- 0.4) than 60 (9.6 +/- 0.5; 9.8 +/- 0.6) and 70 (9.3 +/- 0.5; 9.9 +/- 0.7) rev.min-1, RPE-Legs at 50 W was lower (P < 0.05) for 40 (8.3 +/- 0.4) than 70 (9.9 +/- 0.7) rev.min-1. All other comparisons of RPE between PCR at the three PO were not significant.

Adult↗
PubMed1993

Cardiorespiratory responses of Tai Chi Chuan practitioners and sedentary subjects during cycle ergometry.

Tai Chi Chuan (TCC; shadow boxing) is a traditional Chinese conditioning exercise. To evaluate its beneficial effect on cardiorespiratory function, 21 male and 20 female TCC practitioners, ranging in age from 50 to 64 years, voluntarily participated in this study. The control group comprised 23 male and 26 female sedentary subjects. Breath-by-breath measurement of the cardiorespiratory function was obtained during the incremental exercise of leg cycling. At the maximal exercise level, the oxygen uptake (VO2), O2 pulse and work rate of the TCC group were significantly higher than the respective values of the control group (p < 0.01). At the ventilatory threshold, the TCC group also showed a higher VO2, O2 pulse and work rate (p < 0.05). The results imply that TCC training may be beneficial to the cardiorespiratory function of older individuals. To estimate the exercise intensity of TCC, heart rate (HR) was monitored in 15 men and 15 women while they performed the classical Yang TCC. During the steady-state performance of TCC, the mean HR was 130 +/- 14 bpm for men and 127 +/- 13 bpm for women. The mean HR during TCC exceeded 70% of their HRmax. Our data substantiate that TCC is aerobic exercise of moderate intensity, and it may be prescribed as a suitable conditioning exercise for the elderly.

Exercise↗
PubMed1994

Anaerobic power output and propulsion technique in spinal cord injured subjects during wheelchair ergometry.

In order to investigate the influence of the level of the spinal cord injury (SCI) on anaerobic or short-term power production and propulsion technique, 23 male SCI subjects performed a 30-second sprint test on a stationary wheelchair ergometer. Kinematic parameters were studied both inter- and intra-individually. Subjects with a cervical lesion showed a lower mean power output (21.5 Watt, one-sided) than the other subjects; whereas, no differences were found between subjects with a thoracic or lumbar injury (46.9, 63.7, and 49.1 Watt, one-sided). Unexpectedly, no differences were found for the effectiveness of the force applied on the rim between subjects with a cervical injury and the other subjects. It is suggested that the high hand rim velocity reached by subjects with a lower injury cause coordination problems. Reduced arm functionality of subjects with a cervical lesion appeared to cause a higher inward directed force. Arm functionality and rim velocity may have a compensating effect with respect to the effectiveness of force. The kinematics of subjects with a cervical lesion differed strongly from subjects with a lower lesion. Propulsion technique appeared to be intra-individually consistent, which is reflected in the consistency of the force curves, the power output curves, and the movement patterns. Large inter-individual differences in propulsion technique were found. It is concluded that the large diversity in capacity of the SCI population should be taken into account with respect to guidelines and requirements for the environmental space of the SCI population.

Adult↗
PubMed1994

[The reduction of the ST segment during ergometry is not useful for the location of coronary stenosis].

We have analyzed 44 consecutive patients with significant ST-segment depression during the exercise stress test, with the aim of testing the ability of localizing the coronary stenoses. There was a significant correlation only between maximal ST-segment depression in V1-V4 and stenosis in the left anterior descending artery (r = 0.402, p = 0.0067), but the accuracy of the presence of ischemic ST depression in anterior leads to detect disease of the left anterior descending artery was 59% (26 correct, 18 wrong). The low lateral leads (V5 and V6) were the more accurate to detect coronary disease, as much for the left anterior descending artery as for the right or the circumflex coronary arteries. We conclude that ST segment depressions are of little value to localize the coronary stenoses.

Angina Pectoris↗
PubMed1993

[The prognostic significance of bicycle ergometry data in patients with unstable angina].

A total of 179 patients with unstable angina were studied. There were no complications after bicycle ergonomic tests performed after the patient's condition improvement. An analysis of bicycle ergonometric data and long-term outcomes in 169 patients revealed that the outcome was significantly worse in case of positive test (p = 0.007). The validity of this assessment was confirmed over 49 months. The criterion of test cessation was the most predictor in the assessment of a long-term outcome. In pain development accompanied by ECG changes, only 20% of patients had an uncomplicated course 48 months later. Deaths were more frequently observed in the late period if there was 2 mm or more ST segment depression on exercise testing (p = 0.001).

Adult↗
PubMed1993

[Probability analysis of the value of ergometry in the detection of restenosis after coronary angioplasty].

To evaluate the usefulness of treadmill exercise test in the diagnosis of coronary restenosis, we have chosen a sequential and probabilistic analysis. The rate of coronary restenosis found in the sample (n = 213) was of 30%. This initial probability of having restenosis was radically changed by the recurrence of typical angina: 77% in patients with this symptom, 17% in those without (p < 0.001). In contrast, the qualitative result of the exercise test was unable to change significantly the probabilities established after anamnesis. This was due to a lower specificity for exercise test (76%) than for angina (93%), the sensibility being the same (56%) for both. Employment of a discriminant value that integrates different ergometric variables did not enhanced sensibility, but allowed the identification of a good number of false positive results and therefore palliated the negative impact of faulty specificity. Being applied to a "discordant group" (no angina/positive exercise test, n = 34) was able to achieve a significant change in probability: from 15% to 50% or 4% (p < 0.01), according to the discriminant being lesser or greater than a preestablished value. In conclusion, prevalence of the event and evaluation of symptomatology are both important to estimate the probability of suffering coronary restenosis. On the contrary, exercise test, in the absence of a weighty method, adds more confusion than clarity to the analysis of the problem. Our results can be used to improve the follow-up of patients who have been successfully dilated by angioplasty.

Angioplasty, Balloon, Coronary↗
PubMed1995

[Diagnostic value of echocardiography with dipyridamole in coronary disease and evaluation of its prognostic potentiality face to ergometry, plane dipyridamole Tc99m-MIBI myocardial perfusion scintigraphy and coronary cineangiography].

PURPOSE: To assess in a consecutive series of patients, the diagnostic accuracy of dipyridamole echocardiography and to compare its prognostic power with that from other tests. METHODS: Seventy eight patients prospectively were underwent to dipyridamole echocardiography (DET) and coronary arteriography for diagnostic and post-infarction investigation. The majority was underwent to treadmill stress test and Tc99MIBI-dipyridamole planar myocardial scintigraphy. Eleven variables with possible prognostic importance were analyzed in a stepwise model to identify independent predictors of events. RESULTS: Sensitivity and specificity for the presence of coronary artery disease (in non-M patients) and multivessel disease (in post-MI patients) were, respectively, 44%, 91%, 53% and 88%. Mean follow-up was 21 +/- 9 months, during which there were four deaths, four unstable angina episodes, four nonfatal myocardial infarctions and eight revascularization procedures. By multivariate analysis, the only independent predictor of events was the change in wall motion score index from rest to peak stress. CONCLUSION: DET is a valuable alternative to exercise stress test and myocardial perfusion scintigraphy. Semiquantitative estimation of ischemic area during pharmacological stress is an important prognostic marker.

Chi-Square Distribution↗
PubMed1979

[Disorders of heart rhythm during bicycle ergometry in ischemic heart disease].

During a test on a bicycle ergometer disorders of cardiac rhythm were revealed in 41 (20.5%) out of 240 patients with ischemic heart disease who underwent coronary arteriography. It is concluded that disorders of cardiac rhythm are mostly encountered in patients with ischemic heart disease attended by stenosing changes of the coronary arteries and disorders of left ventricular contractile function as demonstrated by ventriculography. In a few cases ventricular extrasystole may be the only sign of myocardial ischemia in patients with ischemic heart disease.

Adult↗