Relations Between Heart Rate, Reaction Speed, and Subjective Effort at Different Work Loads on a Bicycle Ergometer

1975 ◽  
Vol 1 (4) ◽  
pp. 21-27 ◽  
Author(s):  
Hans Sjöberg
Keyword(s):  
Heart Rate ◽  
Bicycle Ergometer ◽  
Heart Rate Reaction ◽  
Reaction Speed

scholarly journals Evaluation of Cardiovascular System Reactions when Different Muscle Groups are Activated

2018 ◽  
Vol 2 (81) ◽  
Author(s):  
Inga Muntianaitė ◽  
Vytautas Poškaitis ◽  
Alfonsas Vainoras ◽  
Jonas Poderys ◽  
Sandra Bardauskienė
Keyword(s):  
Heart Rate ◽  
Oxygen Saturation ◽  
Cardiovascular System ◽  
Bicycle Ergometer ◽  
Human Organism ◽  
Back Muscles ◽  
Muscle Groups ◽  
Heart Rate Reaction ◽  
Ergometer Test ◽  
Bicycle Ergometer Test

Research background and hypothesis. In our study, the dynamics of working muscle oxygen saturation of participants in the fi nal stages of provocative bicycle ergometer test was different. According to this, we hypothesized, that different central and peripheral reaction of cardiovascular system would dominate during local and regional exercises, too.Research aim was to evaluate central and peripheral reaction of cardiovascular system when different muscle groups are activated. Research methods. Twenty seven healthy men (age 32 ± 1.8 years, body mass index 25.3 ± 0.6 kg / m 2 ) participated in the study. All participants performed provocative bicycle ergometer test, electrocardiogram and oxygen saturation were registered. The participants performed three exercises activating different muscle groups: calf, forearm and back extension.Research results. Variation of heart rate and oxygen saturation values highlighted the difference between arm and leg training exercises. However, the load for arms and legs was individualised, both Groups A and B were different according to the dynamics of heart rate and oxygen saturation indices. Heart rate reaction to the physical load for the back muscles was unusual - heart rate decreased during the fi rst seconds of the back load. Oxygen saturation was lower in resting back muscles compared to those of resting arm and leg muscles (p < 0.05). Discussion and conclusions. The analysis of heart rate and oxygen saturation values has revealed that each functional muscle group of the human organism contains not only general but also individual activating features both integrating regulatory systems and forming a certain activation of metabolism in working muscles.Keywords: heart rate, oxygen saturation, variation of indices.

Comparison of maximal oxygen uptake values determined by predicted and actual methods

1965 ◽  
Vol 20 (3) ◽  
pp. 509-513 ◽  
Author(s):  
R. G. Glassford ◽  
G. H. Y. Baycroft ◽  
A. W. Sedgwick ◽  
R. B. J. Macnab
Keyword(s):  
Heart Rate ◽  
Oxygen Uptake ◽  
Maximal Oxygen Uptake ◽  
Correlation Coefficients ◽  
Bicycle Ergometer ◽  
Exercise Heart Rate ◽  
Indirect Test ◽  
Physical Fitness Test ◽  
Mean Values ◽  
Fitness Test

Twenty-four male subjects aged 17–33 were given three direct tests of maximal oxygen uptake and one indirect test. The direct tests were those of Mitchell, Sproule, and Chapman (treadmill); Taylor, Buskirk, and Henschel (treadmill); and Åstrand (bicycle ergometer). The indirect test was the Åstrand-Ryhming nomogram (bicycle ergometer) employing heart rate response to submaximal work. In addition, the Johnson, Brouha, and Darling physical fitness test was administered. The two treadmill tests and the indirect test yielded significantly higher mean values than did the direct bicycle test. However no other significant differences in mean values occurred. Correlation coefficients between the various oxygen uptake tests as well as the fitness test were all found to be significant (.62–.83), i.e., greater than zero. No correlation obtained proved to be significantly greater than any other. The results indicate that direct treadmill tests, employing greater muscle mass, yield higher maximal oxygen uptake values (8%) than does the direct bicycle ergometer test. The Åstrand-Ryhming nomogram appears to produce a good estimation of maximal oxygen uptake, in a population unaccustomed to cycling. erobic capacity; exercise; heart rate Submitted on September 17, 1964

Fibrinolytic and hemostatic changes during and after maximal exercise in males

1976 ◽  
Vol 40 (3) ◽  
pp. 287-292 ◽  
Author(s):  
G. L. Davis ◽  
C. F. Abildgaard ◽  
E. M. Bernauer ◽  
M. Britton
Keyword(s):  
Heart Rate ◽  
Factor Viii ◽  
Fibrinolytic Activity ◽  
Work Load ◽  
Bicycle Ergometer ◽  
Maximal Heart Rate ◽  
Relative Level ◽  
Maximum Exercise ◽  
Activity Factor ◽  
Male Subjects

To evaluate changes in fibrinolytic activity, factor VIII and other hematological variables during and after a progressive step increment in work load, 10 healthy male subjects (22–27 yr of age) were exercised to exhaustion on an electromagnetic bicycle ergometer. Blood samples were drawn serially throughout the experiment. Little change in fibrinolytic activity was observed before 70–80% maximum heart rate (MHR) was achieved. Major changes occurred after 80% MHR. Peak values coincided with maximum exercise. In contrast major changes in factor VIII were observed between 95 and 100% MHR with peak values occurring 5–10 min postexercise. An increase in white blood cell count, platelet count, and retention was observed at maximum exercise. One individual failed to demonstrate an increase in either fibrinolytic or factor VIII activity. Relating the data to either the percent maximal oxygen uptake or percent maximal heart rate demonstrates the importance of the exercise protocol and exerting all subjects to the same relative level of physiological work.

scholarly journals HRV (Heart Rate Variability) as a non-invasive measurement method for performance diagnostics and training control

2019 ◽  
Vol 5 (1) ◽  
pp. 97-100 ◽  
Author(s):  
Matthias Scherer ◽  
Johannes Martinek ◽  
Winfried Mayr
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Athletic Performance ◽  
Lactate Concentration ◽  
Bicycle Ergometer ◽  
Step Test ◽  
Total Power ◽  
Plateau Phase ◽  
Test Procedures ◽  
Non Invasive

AbstractThe aim of this study was to determine whether non-invasive heart rate variability (HRV) recordings can be used to monitor training exercises and to estimate athletic performance. Thus far, condition and performance have been evaluated with lactate test procedures and spirometry. Several tests were conducted to determine the relationship of data from lactate test samplings, spirometry and HRV recordings. Four groups of professional athletes in different disciplines such as ball sports (n=15), martial arts (n=17), endurance sports (n=8) and hobby athletes (n=6) underwent a standardized treadmill or bicycle ergometer step test while increasing load rates, e.g. 2 km/h or 20-50 Watt every 3.5 minutes, synchronized with standardized series of lactate test sampling, spirometry and ECG recording. An inclusion criterion for all athlete groups was a minimum training frequency of an hour, five days a week focusing on continuous performance improvement. Evidence shows that offline analysis of ECG data allows conclusions on actual individual athletic performance without the need for complex instrumentation and laboratory environment. The total power parameter of the HRV reaches a plateau phase in all tested subjects and this plateau phase reaches zero near the 2 mmol threshold of lactate concentration in all subjects recorded on a bicycle ergometer. Nine out of ten subjects measured on the bicycle ergometer had negatively correlating data of lactate concentration and total power of HRV (α < 0.05). Lactate measurements using treadmills require resting periods for blood sampling. As the HRV increases instantly in these resting periods, the use of bicycle ergometers, where no testing breaks are needed, is recommended for further research.

Effect of Intermittent Exercise on Multiple-Choice Reaction Times of Soccer Players

2005 ◽  
Vol 100 (1) ◽  
pp. 85-95 ◽  
Author(s):  
Koen A. P. M. Lemmink ◽  
Chris Visscher
Keyword(s):  
Intermittent Exercise ◽  
Multiple Choice ◽  
Reaction Times ◽  
Bicycle Ergometer ◽  
Soccer Players ◽  
Control Group ◽  
Choice Response ◽  
Response Accuracy ◽  
And Control ◽  
Reaction Speed

The influence of intermittent exercise on a choice-response time task was investigated. Two groups of 8 male soccer players ( M age = 20.9, SD = 2.0) participated. They spent 4.4 ( SD = 1.3) weekly hours on soccer training and had been playing soccer for 13 ( SD = 3.3) years. Multiple-choice reaction speed and response accuracy were measured four times. Between measurements, one group performed 8-min. blocks of intermittent exercise on a bicycle ergometer and one group rested. Analysis showed that reaction speed and response accuracy were not significantly different between the two groups. Furthermore, there were significant faster reaction times and a larger number of correct reactions through Block 2 in both the exercise and control group ( p<.05), probably a result of learning processes and familiarization with the task procedures. Further research towards the specific influence of mode of exercise, intensity, work-rest ratio and duration of intermittent exercise, and the sensitivity of reaction time tasks will be necessary to clarify the relationship between intermittent exercise and cognitive performance.

Body Composition (% Fat) and Heat Stress of Well Conditioned Young Adult Males

1982 ◽  
Vol 26 (6) ◽  
pp. 561-564
Author(s):  
Michael W. Riley ◽  
David J. Cochran ◽  
Arthur J. Soundy
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Young Adult ◽  
Skin Temperature ◽  
Body Fat ◽  
Bicycle Ergometer ◽  
The Body ◽  
Lean Body Weight ◽  
Adult Males ◽  
Young Adult Males

The physiological responses of heart rate, oxygen consumption, sweat loss, rectal temperature and mean skin temperature were monitored as eight well-conditioned young adult males were exposed to effective temperatures of 70°F, 80°F and 90°F. The body fat contents of the subjects ranged from 11.3% to 34%. The subjects pedalled a 300 kilopond meters/minute load on a bicycle ergometer for 25 minutes. Results indicate that body fat or the percent of body fat squared have a statistically significant effect on the dependent variables of oxygen consumption/lean body weight, change in heart rate, core-skin temperature gradient, and oxygen consumption/maximum oxygen consumption.

The Borg Scale Validation for a Consumer Product - Automobile Polishes

1984 ◽  
Vol 28 (1) ◽  
pp. 98-101
Author(s):  
J. Kreifeldt ◽  
P. Hill ◽  
M. M. Clarke ◽  
J. Draper
Keyword(s):  
Heart Rate ◽  
Scale Validation ◽  
Bicycle Ergometer ◽  
Weight Lifting ◽  
Superior Performance ◽  
Work Effort ◽  
Borg Scale ◽  
Predictive Utility ◽  
Perceived Effort ◽  
Numerical Rating

The Borg scale which is purported to correlate subjectively perceived heart rate with objective physiological workload was tested for its predictive utility by subjects using 5 different car wax formulations. Subjects applied and removed the waxes from a high gloss painted panel. The amount of effort and time expended with each wax were determined using a force platform and timing device. Subjects also gave a Borg scale numerical rating as they used each wax. The reported high correlation between Borg scale ratings and exercises using a bicycle ergometer, weight lifting, etc. suggested that it might be a reliable predictor of workload effort or time in such common tasks as car waxing. Results indicate that the ability of the Borg values to predict either amount of time taken or effort expended was moderate (r =.58) on average, with a relatively high correlation between time and effort (r = .61). The rank orders of averages for Borg values and work effort, however, agreed well across the five waxes. Additionally, results clearly indicated superior performance (actual and perceived effort) of a newly formulated wax.

Maximal heart rate during work in older men

1959 ◽  
Vol 14 (4) ◽  
pp. 562-566 ◽  
Author(s):  
Irma Åstrand ◽  
Per-Olof Åstrand ◽  
Kaare Rodahl
Keyword(s):  
Heart Rate ◽  
Ambient Air ◽  
Work Load ◽  
Work Capacity ◽  
Bicycle Ergometer ◽  
Maximal Heart Rate ◽  
Average Maximum ◽  
Work Up ◽  
Aerobic Work Capacity ◽  
Male Subjects

Nine 56–68-year-old male subjects performed muscular work up to maximal loads on a bicycle ergometer while breathing both ambient air and oxygen. Heart rate increased to an average maximum of 163/min. The maximal O2 intake averaged 2.24 l/min. and the blood lactic acid concentration 85 mg/100 ml. In no case was the maximal heart rate higher when breathing O2 than when breathing air. This low maximal heart rate in older people probably limits the capacity for O2 intake. Four subjects were able to work for about 1 hour without any sign of exhaustion on a work load requiring an O2 consumption of about 50% of their maximal aerobic work capacity. Submitted on October 3, 1958

scholarly journals Athletes’ Physical Performance in the System of the Sports Medicine Technologies Effectiveness Evaluation

2021 ◽  
Vol 20 (6) ◽  
pp. 119-125
Author(s):  
Anna A. Kish ◽  
Evgeny V. Goloborodko ◽  
Sergey M. Razinkin ◽  
Artem M. Komlev
Keyword(s):  
Heart Rate ◽  
Physical Performance ◽  
Sports Medicine ◽  
Female Athletes ◽  
Performance Testing ◽  
Bicycle Ergometer ◽  
Track And Field ◽  
Male Athletes ◽  
Specific Loading ◽  
Rowing Ergometer

Aim. To determine the effectiveness of the specific loading testing use in assessing the athletes’ physical performance. Material and methods. We present a post-hoc analysis of data from specific and nonspecific loading testing (bicycle ergometer, treadmill, rowing ergometer, and ski treadmill) of 23 oarsmen athletes (13 male (mean age 25.85±0.88 years) and 10 female (mean age 22.90±1.20 years); 125 track and field athletes (75 male athletes (mean age 24.74±0.91) and 50 female athletes (mean age 23.81±1.35)), 38 ski athletes (22 male athletes (mean age 21.3±2.4) and 16 female athletes (mean age 19.6±1.8)). Results and discussion. When assessing the physical performance of track and field athletes of various positions using a bicycle ergometer and a treadmill, the maximum oxygen consumption (MOC) parameter for throwers and jumpers was in the range of 29-55 ml/min/kg (it is more appropriate to use a statoergometer), for runners – 39-75 ml/min/kg (testing on a treadmill is preferable). The greatest efficiency and physiological validity was obtained by load testing using a rowing ergometer for rowing athletes and a ski roller treadmill for athletes of ski sports (the ratio of heart rate at the anaerobic metabolism threshold level to the heart rate “on failure” is ~ 97%). With bicycle ergometry, low values of MOC were obtained in athletes training for endurance, and, including on the treadmill, in athletes with the main strength load and implies the work of the muscles of the upper shoulder girdle and back. The functional and reserve capabilities of the athlete are not reflected in the data obtained that makes impossible to judge the level of his/her functional readiness. Conclusion. Sports medicine technologies reflecting the dynamic characteristics of athletes’ physical performance should be evaluated from the point of view of informativeness and efficiency of their application depending on the type of sport. Conclusion about the effectiveness of sports medicine technologies should be made considering the results of the functional and physical performance testing under the exertion, specific to a particular sport.

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