[Geomedical ergometry in children. Comparative ergometry and spirography in urban, rural and alpine children].
Explore the source record for details and available documents.
Adolescent↗
SEARCH · PubMed Health
Results for “Ergometry”
Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
[Ergometry. Part 3: Practical procedures in ergometry].
Explore the source record for details and available documents.
Coronary Disease↗
[National Consensus on Ergometry. Department of Ergometry and Cardiovascular Rehabilitation of the Brazilian Cardiology Society].
Explore the source record for details and available documents.
Brazil↗
The effect of previous weight training and concurrent weight training on endurance for functional electrical stimulation cycle ergometry.
Forty-five paraplegic subjects participated in three series of experiments to examine the interrelationships between previous weight training, concurrent weight training and muscle strength and endurance during cycle ergometry elicited by functional electrical stimulation (FES). When subjects only underwent isokinetic weight training (series 1) three times per week on the quadriceps, hamstring and gluteus maximus groups for 12 weeks, strength increased linearly with time for all three muscle groups from an initial average of 17 N to 269 N at the end of training, a 15-fold increase. In the second series of experiments, different groups of subjects either underwent no strength training prior to cycle ergometry or underwent strength training of these same three muscle groups for 2 weeks, four weeks, or 6 weeks prior to cycle ergometry. Any strength training was effective in increasing endurance for cycle ergometry. However, the rate of increase in endurance during cycle ergometry with no prior strength training was only 5 min per week, whereas the rate of increase in cycle endurance during ergometry was 14.6, 25.0, and 33.3 min per week increase in endurance after strength training for 2.4 and 6 weeks, respectively. When weight training was accomplished during FES cycle ergometry (concurrently) in a third series of experiments, there was an additional increase in endurance during cycling if strength training was concurrently accomplished. With no weight training, endurance increased 23 min per week, whereas with concurrent weight training at three times per week, endurance increased during cycling by 41.6 min per week. The results of these experiments seem to show a clear advantage of weight training concurrently and before FES cycle ergometry. Results are given as mean (SD).
Adult↗
Limitations to maximum oxygen uptake in arms, leg, and combined arm-leg ergometry.
Our purpose was to study the effect of arm, leg, and combined arm-leg ergometry on the oxygen uptake (Vo2), cardiac output (Q), ventilation, and anaerobic threshold (AT) of three healthy men. At submaximum work intensities, Vo2 was not significantly different in the three tasks, but differences were observed for heart rate, ventilation, and Q. The AT was reached at progressively higher work rates in arm, leg and combined arm-leg ergometry, respectively. The Vo2 max in arm ergometry averaged 68 percent of the Vo2max in leg ergometry and 60 percent of Vo2 max in combined arm-leg ergometry. Two subjects with Vo2max's less than 45 ml/kg-min had a mean Vo2max in combined arm-leg ergometry 19 per cent higher than in leg ergometry. A third subject, with a Vo2max greater than 50 ml/kg-min, showed no change. Differences in Vo2max were primarily due to the differences in Q. Skeletal muscle blood flow appears to be a critical factor in the limitation of Vo2max in arm or leg ergometry.
Adult↗
Power output for wheelchair driving on a treadmill compared with arm crank ergometry.
OBJECTIVES: The limiting factors with regard to power output available for wheelchair ambulation have not been identified. The aim of the present study was to correlate power output during wheelchair driving with (i) power output and oxygen uptake during arm crank ergometry and (ii) arm muscle strength. METHODS: Eleven disabled men were examined for maximal power output (POmax) during wheelchair driving on a treadmill and during arm crank ergometry. Oxygen uptake (VO2) was recorded at submaximal and maximal arm crank ergometry in all men and during submaximal wheelchair driving on a treadmill in four men. Power output during wheelchair driving on a treadmill was measured. Static and dynamic elbow muscle strength was measured isokinetically. RESULTS: POmax was significantly lower (P < 0.001) for wheelchair driving (109 (31) W; mean (SD)) than for arm ergometry (163 (49) W). There was a significant correlation between POmax for arm crank ergometry and wheelchair driving (r = 0.73). There was no correlation between POmax and elbow strength. The mechanical efficiency was constant for the different levels on the arm crank ergometry test. The submaximal testing showed a consistently lower mechanical efficiency for wheelchair driving than for arm crank ergometry. CONCLUSIONS: It is suggested that the lower level of power output for wheelchair driving is fully explained by the lower mechanical efficiency. Any improvement in power output available for ambulation must be based on wheelchair ergonomics.
Adult↗
The clinical use of supine left lateral leg cycle ergometry for exercise electrocardiographic testing in women, as used in exercise echocardiography.
BACKGROUND: Two-dimensional exercise echocardiography is commonly performed in the supine (SUP) left lateral posture (SLL) to optimize imaging quality. OBJECTIVES: To assess the clinical use of SLL cycle ergometry, we determined the metabolic, cardiovascular, and hemodynamic responses during graded leg cycle ergometry in women, performed in SLL, commonly used during exercise echocardiography, and compared our findings with those obtained during upright (UP) and SUP leg cycle ergometry. METHODS: A total of 21 apparently healthy women performed leg cycle ergometry in 3 distinct postures (UP, SUP, and SLL). RESULTS: Peak oxygen consumption and peak achieved workload during SLL cycle ergometry were significantly lower compared with UP cycle ergometry, indicating that in SLL physical work capacity would be underestimated compared with that obtained for the UP and SUP postures. The peak heart rate was significantly lower in SLL and the peak systolic blood pressure higher, compared with UP. Maximal rate pressure product was not significantly different among the postures, indicating the equivalent value of SLL with regard to augmenting myocardial oxygen demand during exercise. Stroke volume (calculated from aortic Doppler flow integral) was higher at rest, and increased to a smaller extent during exercise, in the SUP posture and SLL compared with UP. Similar peak values were attained for the 3 postures. CONCLUSIONS: SLL is not a suitable modality for the assessment of functional status or for the derivation of target heart rates for exercise training in UP posture. However, SLL leg cycle ergometry exercise provokes a comparable stimulus for the detection of coronary artery disease, as it will increase myocardial oxygen demand to the same extent as UP leg cycle exercise.
Adult↗
Improved motor function in tetraplegics following neuromuscular stimulation-assisted arm ergometry.
The effectiveness of neuromuscular stimulation (NMS)-assisted arm ergometry for strengthening triceps brachii was evaluated in 34 cervical spinal cord injured persons. Group I (n = 12) received eight weeks of NMS-assisted ergometry. Group II (n = 11) received four weeks of NMS-assisted ergometry followed by four weeks of arm ergometry alone. Group III (N = 11) received only arm ergometry (control group). Seventeen of 24 muscles in Group I subjects had improved manual muscle test scores after eight weeks, compared with 10 of 22 Group II muscles and five of 22 Group III muscles. Including only muscles with initial scores < or = 3, Group I demonstrated significant improvements versus Group III after four weeks (p < .003) and after eight weeks (p < .0005) of exercise. A difference was also found between Groups II and III (p < .03) after eight weeks. These results suggest that NMS-assisted ergometry is effective for strengthening voluntary triceps muscle contractions in tetraplegics.
Adolescent↗
A prospective comparison of pedal ergometry with conventional treadmill testing in the investigation of lower extremity pain.
BACKGROUND: Investigation of lower extremity pain is compromised by comorbid disorders that may interfere with conventional testing. AIMS: To compare pedal ergometry with conventional treadmill testing. METHODS: A prospective study was performed where patients presenting with a diagnosis of intermittent claudication were assessed by both methods of testing. RESULTS: Of 78 patients studied with both tests, no exercise-induced ankle pressure changes occurred in 26, two were unable to complete either test despite normal pressure measurements, while 24 had exercise-induced pressure drop detected by both tests. Of patients who completed pedal ergometry, 21 were unable to complete the treadmill test, 14 of whom had negative ergometry, while seven had a pressure drop detected by pedal ergometry. Three had pressure changes with pedal ergometry, but not with treadmill testing and two had pressure changes on the treadmill not reproduced by pedal ergometry. CONCLUSIONS: Pedal ergometer is more sensitive than treadmill testing in detecting arterial insufficiency, as indicated by a 20% or greater fall in ankle pressure, and more suitable in a subgroup of patients unable to tolerate conventional treadmill testing.
Blood Pressure↗
Regulating exercise intensity using ratings of perceived exertion during arm and leg ergometry.
The purpose of this investigation was to examine the validity of regulating exercise intensity using ratings of perceived exertion (RPEs) during arm crank and leg cycle exercise at 50 and 70% peak oxygen consumption (VO2peak). Ten men and seven women [26 (1) years old; mean (SE)] participated in this study. Each subject completed a maximal estimation trial and two submaximal exercise bouts (production trials) on both an arm and leg ergometer. During each maximal estimation trial, subjects were asked to give a RPE for each stage of the exercise. RPEs, heart rates (HR), and power outputs (PO) equivalent to 50 and 70% VO2peak for each exercise mode were then estimated from plots of RPE versus oxygen consumption (VO2), HR versus VO2, and PO versus VO2, respectively. During the submaximal trials, subjects were instructed to select workloads on an arm and leg ergometer that produced the previously estimated RPEs. Comparisons were made for VO2, HR, and PO between the estimation and production trials for each mode at each exercise intensity. HR did not differ between the trials at either 50 or 70% VO2peak during arm and leg ergometry. In addition, VO2 and PO did not differ between the trials at either 50 or 70% VO2peak during arm ergometry and at 50% VO2peak during leg ergometry. However, these two parameters were lower (P < 0.05) during the production trial [1.88 (0.15) l x min(-1) and 89.1 (10.1) W, respectively] as compared to the estimation trial [2.08(0.14) l x min(-1) and 102.4 (6.5)W, respectively] during leg ergometry at 70% VO2peak. In conclusion, using RPEs to regulate exercise intensity is physiologically valid during arm ergometry at both 50 and 70% VO2peak and during leg ergometry at 50% VO2peak. However, this prescriptive approach remains questionable during leg cycle exercise at 70% VO2peak.
Adult↗
[Comparison of 24-hour blood pressure measurement with ergometry in patients with hypertension].
24-h-Ambulatory blood pressure monitoring and bicycle ergometry were compared in 112 patients with untreated mild to moderate essential hypertension. Patients with high blood-pressure values above 220 mmHg during ergometry showed a significantly higher number of blood-pressure peaks above 180 mmHg. There was no significant correlation between the level of the blood-pressure rise during ergometry and the mean values of blood pressure during the 24-h period neither in the night- or the daytime period, nor of the peak values of the 24-h profile. Blood-pressure values during ergometry in patients with high numbers of systolic blood-pressure peaks above 180 mmHg during ambulatory monitoring did not differ significantly from patients with blood-pressure peaks above 180 mmHg during ambulatory monitoring. Patients with marked blood-pressure rise during ergometry seem to demonstrate a higher number of blood-pressure peaks during daytime. On the other hand, patients with an elevated number of blood-pressure peaks do not necessarily show a high blood-pressure rise during ergometry.
Adult↗
Prescribing water-based exercise from treadmill and arm ergometry in cardiac patients.
This study investigated the appropriateness of prescribing upright water-based exercise from treadmill and arm ergometry in uncomplicated, trained patients with cardiovascular disease (CVD) who were accustomed to water-based activities. Ten male patients with established CVD (mean age 59.4 +/- 8.7 yr) underwent maximal treadmill and arm ergometry in randomized counterbalanced order (half of the patients completed the treadmill test first and the other half completed the arm ergometer test first). Electrocardiographic (ECG), rating of perceived exertion (RPE), and oxygen uptake (VO2) measurements were made during both tests. Patients performed upright water-based exercise at 60, 70, and 80% of their maximal treadmill heart rate for 6 min at each intensity in a heated pool with a water temperature of 28-30 degrees C. They also performed an easy tethered swim, defined as performing at a comfortable exercise intensity, eliciting a heart rate of 86% of the treadmill maximum. VO2 and RPE were collected for all water-based exercise. To compare the RPE and VO2 between water-based, treadmill, and arm ergometry exercise, individual regression equations were constructed between heart rate, VO2, and RPE for both treadmill and arm ergometry tests. VO2 and RPE were then compared at the same heart rates between the three exercise modes. At 60% intensity, treadmill exercise exhibited a higher VO2 than water-based and arm ergometry exercise (P less than 0.05) but similar RPE. At 70%, treadmill exercise still yielded higher VO2, but also lower RPE than (P less than 0.05) and arm ergometry exercise (P less than 0.05).(ABSTRACT TRUNCATED AT 250 WORDS)
Aged↗
[Physical rehabilitation using bicycle ergometry training of patients after aortic valve replacement].
After prosthetics of the aortal valve 30 patients underwent bicycle ergometry training at the sanatorial stage of rehabilitation. 10 patients who did not undergo bicycle ergometry training made up the control group. The efficacy of bicycle ergometry training was assessed according to the time-course of changes in pump and contractile functions of the heart and oxygen consumption at rest and during bicycle ergometry. Transfer of the patients to a higher functional class, a decrease in the number of threshold reactions, attainment of a higher heart rate and a higher oxygen consumption, capacity for an increase of the stroke index up to the load of 1.0 W/kg and of the level of the myocardial reserve up to 1.5-2.0 W/kg were used as criteria for the effectiveness of bicycle ergometry training. The effectiveness of bicycle ergometry training is also supported by the data obtained on comparison of the findings in the main and control groups.
Adolescent↗
[Life-threatening complications of ergometry].
During the four most common ergometric exercise tests--bicycle ergometry seated and lying, step exercise testing and treadmill ergometry--such life-threatening complications as ventricular fibrillation, pulmonary edema or myocardial infarction occur to a varying degree. As a typical complication of bicycle ergometry with the patient lying, pulmonary edema, which can be explained by an increase in the venous return in the supine patient, has been observed in 1:29,000 cases. Ventricular fibrillation is particularly common in treadmill ergometry, possibly as a consequence of CNS-derived stimuli provoking arrhythmias due to this type of ergometry which may cause anxiety in some patients. Myocardial infarction, and also death--usually as a result of acute infarction--are also seen much more commonly in treadmill exercise testing (1:2,800 and 1:20,000, respectively) than in bicycle ergometry with the patient seated or supine. The step exercise test is associated with an infarction rate of 1:43,000, and a mortality rate of 1:128,000, and is thus a comparatively safe form of exercise testing. Maximum loading of the patient and the mode of the exercise test (test protocol) appear to have no influence on the complication rate. A careful prior examination including history-taking, the presence of a physician and a standby defibrillator are a must.
Cause of Death↗
[Ergometry procedures independent of body weight in children with special reference to blood pressure behavior in stress].
UNLABELLED: For the purpose of investigating differences in terms of gender and methodology, a group of 80 healthy children engaged in leisure-time sport activities (male: n = 50; 10.9 +/- 1.1 years; female: n = 30; 11.5 +/- 1.1 years) was divided into 3 groups, which were then subjected to different ergometric procedures. In group I, boys and girls were compared in a bicycle ergometry in an upright seated position. In group II, a bicycle ergometry in upright seated position was compared with a bicycle ergometry in a supine position. In group III, a bicycle ergometry in upright seated position was compared with a treadmill exercise. Bicycle ergometry was started at 25 W; workload was increased in steps of 25 W every 3 min until the children felt exhausted. RESULTS: No differences with respect to gender were found for maximum oxygen uptake, maximum heart rate and maximum lactate. The relevant parameters were also similar on submaximal levels of exercise intensity. All children reached a degree of thorough physical exhaustion at heart rates close to 200 X min-1. As in adults, maximum oxygen uptake decreased in the following order: treadmill exercise greater than bicycle ergometry in upright seated position greater than bicycle in supine position. Systolic and diastolic blood pressure on the various levels of exercise were lower than among adults.(ABSTRACT TRUNCATED AT 250 WORDS)
Blood Pressure↗
Physiologic responses to arm ergometry exercise relative to age and gender.
Arm ergometry exercise testing is a valuable alternative method used in the evaluation and management of patients with both cardiac disease and lower limb impairment. The purpose of this study is to provide information concerning the physiologic responses of normal healthy subjects to arm ergometry relative to age and gender, which could serve as a standard for comparison. Eighty healthy subjects (age 22 to 59 years) cycled at 75 to 80 rpm (on a bicycle adapted for arm ergometry) starting at a power output of 10 W, increasing at 10 W/2 min until exhaustion. Sixty subjects were classified on the basis of age into three groups, each with 10 men and 10 women. Men achieved significantly (p less than 0.001) higher power output (95 +/- 25 W) and oxygen consumption (20.7 +/- 3.9 ml/kg per min) than did women (56 +/- 19 W and 15.5 +/- 3.1 ml/kg per min, respectively). The heart rate response to total body oxygen demand during arm ergometry was significantly higher in women than in men (p less than 0.001). These findings were also present when men and women of each age group were analyzed separately. Older subjects reached a significantly (p less than 0.02) lower peak power output than did younger subjects although they reached a similar level of oxygen consumption. Separate regression equations for predicting oxygen consumption at each power output were formulated for men and women and validated in 20 other subjects. Small differences in measured and predicted oxygen consumption at each stage were found. These data provide additional information concerning arm ergometry testing and should prove useful in diagnostic exercise testing and cardiac rehabilitation.
Adult↗
Power output of legs during high intensity cycle ergometry: influence of hand grip.
Traditionally, leg cycle ergometry is used to assess the power output of the lower limbs. However, it is suspected that the upper body makes a significant, albeit as yet unknown, contribution to the measured power output, and as such, the lean mass of the whole body should be considered during ergometric assessment. To test this idea, indices of mechanical power output were obtained from 11 subjects during high intensity leg cycle ergometry tests (20 second duration; 75 grams per kilogram total body mass) using two protocols: one with a standard handle-bar grip (with grip) and one with supinated wrists (without-grip). Peak mechanical power, mean mechanical power, fatigue index and total mechanical work values were calculated for each subject during each test and the sample mean differences associated with the two protocols were compared using paired Student t-tests. The with-grip protocol yielded significantly greater peak mechanical power output than the without-grip protocol (886+/-124 W and 815+/-151 W, respectively), suggesting a significant upper body contribution to the maximum power output measured for the legs. As a first step towards quantifying the upper body involvement during leg cycle ergometry, surface electromyography of the forearm musculature was measured in a twelfth subject whilst performing each of the test protocols. During the with-grip ergometer tests, the intensity of electrical activity in the forearm musculature was similar, if not greater than, the intensity of electrical activity recorded for the forearm musculature during 100% maximum voluntary hand grip-dynamometer contractions, suggesting maximum isometric-type forearm muscle contraction during the with-grip leg ergometry tests. These findings suggest that the performance of traditional-style leg cycle ergometry requires a muscular contribution from the whole body. As such, researchers should be mindful of this, both in terms of the allocation of ergometer loads, and in the analysis of blood-borne metabolites.
Adult↗
[Life-threatening complications in 1741106 cases of ergometry].
No life-threatening complications occurred in exercise-testing in 384 938 athletes. Among 1 356 168 patients the most frequent complication was ventricular fibrillation (1:15 000). The step test was associated with a two-fold diminution of fibrillations when compared to bicycle ergometry in the supine position and with a four-fold decrease when compared to conventional bicycle ergometry. Pulmonary oedema, a typical complication, occurred once in 29 000 bicycle ergometries in supine position. Infarctions were seen 3.5 times more frequently between 1950 and 1977 (1:26 000) than in the following four years (1:92 000). Fatal cardiac infarction occurred in 1:42 000 before 1978 and in 1:644 000 thereafter. It was the sole cause of death. Present data show a potentially life-threatening risk of 1:9000 ergometries in patients. Considering the favourable trend at present, a risk of 1:12 000 can be expected in conditions of an experienced investigator. Defibrillation facilities ready for use must be available in any ergometry.
Adult↗