scholarly journals Maximal Heart Rate for Swimmers

Sports ◽  
2019 ◽  
Vol 7 (11) ◽  
pp. 235 ◽  
Author(s):  
Bjørn Harald Olstad ◽  
Veronica Bjørlykke ◽  
Daniela Schäfer Olstad
Keyword(s):  
Body Mass Index ◽  
Heart Rate ◽  
Step Test ◽  
Maximal Heart Rate ◽  
Test Protocol ◽  
Front Crawl ◽  
Running Training ◽  
Elite Swimmers ◽  
Rate Test ◽  
The Difference

The main purpose of this study was to identify whether a different protocol to achieve maximal heart rate should be used in sprinters when compared to middle-distance swimmers. As incorporating running training into swim training is gaining increased popularity, a secondary aim was to determine the difference in maximal heart rate between front crawl swimming and running among elite swimmers. Twelve elite swimmers (4 female and 8 male, 7 sprinters and 5 middle-distance, age 18.8 years and body mass index 22.9 kg/m2) swam three different maximal heart rate protocols using a 50 m, 100 m and 200 m step-test protocol followed by a maximal heart rate test in running. There were no differences in maximal heart rate between sprinters and middle-distance swimmers in each of the swimming protocols or between land and water (all p ≥ 0.05). There were no significant differences in maximal heart rate beats-per-minute (bpm) between the 200 m (mean ± SD; 192.0 ± 6.9 bpm), 100 m (190.8 ± 8.3 bpm) or 50 m protocol (191.9 ± 8.4 bpm). Maximal heart rate was 6.7 ± 5.3 bpm lower for swimming compared to running (199.9 ± 8.9 bpm for running; p = 0.015). We conclude that all reported step-test protocols were suitable for achieving maximal heart rate during front crawl swimming and suggest that no separate protocol is needed for swimmers specialized on sprint or middle-distance. Further, we suggest conducting sport-specific maximal heart rate tests for different sports that are targeted to improve the aerobic capacity among the elite swimmers of today.

Abstract P319: Association of Heart Rate Reserve with Incidence of Hypertension in Men

Circulation ◽  
2013 ◽  
Vol 127 (suppl_12) ◽  
Author(s):  
Vivek K Prasad ◽  
Gregory A Hand ◽  
Mei Sui ◽  
Duck C Lee ◽  
Deepika Shrestha ◽  
...  
Keyword(s):  
Heart Rate ◽  
Exercise Test ◽  
Heavy Drinking ◽  
Risk Groups ◽  
Hazard Ratio ◽  
Maximal Heart Rate ◽  
Heart Rate Reserve ◽  
Incident Hypertension ◽  
The Difference ◽  
Design And Methods

Abstract Objectives— We examined the association between heart rate reserve (HRR) and incident hypertension in men in the Aerobics Center Longitudinal Study. Research design and Methods— A total of 10418 healthy normotensive men, who did not have an abnormal electrocardiogram or a history of heart attack, stroke, cancer, or diabetes, performed a maximal treadmill exercise test and were followed for the incidence of hypertension. HRR was defined as the difference between maximal heart rate during exercise test and resting heart rate. Results— During a mean follow-up of 6 years, there were 2831 cases of incident hypertension. Compared with men in the reference category (the lowest quartile of HRR), the risk of incident hypertension was significantly lower in the highest quartile of HRR with a hazard ratio 0.67 (95% CI: 0.60-0.75) when adjusted for age and baseline examination year. Further adjustment for smoking, heavy drinking, body mass index (BMI), resting systolic and diastolic blood pressure, cholesterol, blood glucose and cardio respiratory fitness, resulted a hazard ratio of 0.84 (95% CI:0.74-0.95). This result was almost similar when we stratified them into younger and older men with hazard ratio of 0.77(95% CI: 0.62-0.98) and 0.78 (95% CI: 0.66-0.90) respectively. We also found a significant lower hypertension risk associated with higher HRR among high risk groups such as overweight, low fitness, or prehypertension with hazard ratio of 0.82(95% CI:0.70-0.97), 0.80(95% CI:0.67-0.96), 0.76(95% CI:0.64-0.88) respectively. Conclusion— Risk of Incident hypertension was significantly lower in men with higher HRR. High HRR was also associated with lower risk of developing hypertension irrespective of age and status of risk factors such as high BMI, low fitness and prehypertension. Therefore, HRR may be considered as a reliable exercise parameter for predicting the risk of incident hypertension.

scholarly journals Validation of the Software-Hardware Complex “Rytm” for Measurement of the RR Intervals and Heart Rate Variability Analysis During Exercise and Recovery Period

2021 ◽  
Vol 21 (1) ◽  
pp. 61-68
Author(s):  
Lyubomyr Vovkanych ◽  
Yuriy Boretsky ◽  
Viktor Sokolovsky ◽  
Dzvenyslava Berhtraum ◽  
Stanislav Kras
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Recovery Period ◽  
Intraclass Correlation ◽  
Step Test ◽  
Heart Rate Variability Analysis ◽  
Test Protocol ◽  
Rr Intervals ◽  
Significant Difference ◽  
Very High

The study purpose was estimation of the accuracy of RR time series measurements by SHC “Rytm” and validity of derived heart rate variability (HRV) indexes under physical loads and recovery period. Materials and methods. The participants were 20 healthy male adults aged 19.7 ± 0.23 years. Data was recorded simultaneously with CardioLab CE12, Polar RS800, and SHC “Rytm”. Test protocol included a 2 minute step test (20 steps per minute, platform height – 40 cm) with the next 3 minute recovery period. HRV indexes were calculated by Kubios HRV 2.1. Results. The RR data bias in the case of physical loads was -0.06 ms, it increased to 0.09-0.33 ms during the recovery period. The limits of agreement for RR data ranged from 3.7 ms to 22.8 ms, depending on the period of measurements and pair of compared devices. It is acceptable for the heart rate and HRV estimation. The intraclass correlation coefficients (0.62–1.00) and Spearman correlation coefficient (0.99) were high enough to suggest very high repeatability of the data. We found no significant difference (p > 0.05) and good correlation (r = 0.94-1.00) between the majority of HRV indexes, calculated from data of Polar RS800 and SHC “Rytm” in conditions of physical loads (except for LF/HF ratio) and in the recovery period. The only one index (RMSSD) was different (p < 0.05) in case of Polar RS800 and SHC “Rytm” data, obtained in the recovery period. The largest numbers of different HRV indexes have been found during the comparison of CardioLab CE12 and Polar RS800 – RMSSD, pNN50, and SD1. Correlation between HRV indexes (r = 0.81-1.00) was very high in all pairs of devices in all periods of measurements. Conclusions. The SHC “Rytm” appears to be acceptable for RR intervals registration and the HRV analysis during physical loads and recovery period.

scholarly journals Comparison of heart rate recovery between normotensive young adults with and without a parental history of hypertension

2020 ◽  
Vol 11 (3) ◽  
pp. 31-36
Author(s):  
Satyajit Bagudai ◽  
Hari Prasad Upadhyay
Keyword(s):  
Heart Rate ◽  
Young Adults ◽  
Heart Rate Recovery ◽  
Step Test ◽  
Exercise Heart Rate ◽  
Parental History ◽  
Recovery Index ◽  
Significant Difference ◽  
History Of ◽  
The Difference

Introduction: Studies have reported that off springs of hypertensive parents are more likely to develop hypertension. Affection of target organ starts even before the diagnosis of hypertension. Autonomic dysfunction may be the initial cardiac effects in the pathogenesis of hypertension. Till now very few studies have been done to find the early outcomes in the cardiac autonomic functions in the normotensive siblings of hypertensive patients. Heart rate recovery after exercise is a useful marker for cardiac autonomic function. Since the etio-pathogenesis of hypertension is expected to affect the autonomic cardiovascular parameters even before the prehypertensive stage, the following study was carried out to analyze the heart rate recovery, in the descendent non- hypertensive young adults with and without parental history of hypertension. Aim and objective: This research study was aimed to study the quantify and compare the difference (if any) of heart rate recovery in response to 3minute step test between non hypertensive children of non- hypertensive and hypertensive parents within an age group of 18-22 years. Material &Methods: A total of 63 normotensive students were divided into one hypertensive parents(HP) group containing students with parental history of hypertension) and one non hypertensive parents group (NHP) having students without parental history of hypertension). Each student was subjected to 3 minute Master step test. Recordings of heart rate were made before and after exercise. Heart rate recovery index (HRRI) of 1minute (HRRI1), as well as in 2, 3 and 4 minute (HRRI2, HRRI3, HRRI4) were calculated and analyzed. Results: The resting (basal) heart rate as well as 1st minute heart rate recovery index (HRRI1) was not significantly different in the two groups. Likewise, the 2nd minute (HRRI2), 3rd minute (HRRI3), and 4th minute HRRI (HRR4) respectively were also not significantly different between the two groups. Conclusion: This study concluded that there is no significant difference in heart rate recovery among non-hypertensive young adults, with and without parental history of hypertension.

scholarly journals Maximum Aerobic Capacity of Underground Coal Miners in India

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Ratnadeep Saha ◽  
Netai Chandra Dey ◽  
Amalendu Samanta ◽  
Rajib Biswas
Keyword(s):  
Aerobic Capacity ◽  
Indirect Method ◽  
The Body ◽  
Step Test ◽  
Maximal Heart Rate ◽  
Coal Miners ◽  
Test Protocol ◽  
Working Groups ◽  
Maximum Aerobic Capacity

Miners fitness test was assessed in terms of determination of maximum aerobic capacity by an indirect method following a standard step test protocol before going down to mine by taking into consideration of heart rates (Telemetric recording) and oxygen consumption of the subjects (Oxylog-II) during exercise at different working rates. Maximal heart rate was derived as 220−age. Coal miners reported a maximum aerobic capacity within a range of 35–38.3 mL/kg/min. It also revealed that oldest miners (50–59 yrs) had a lowest maximal oxygen uptake (34.2±3.38 mL/kg/min) compared to (42.4±2.03 mL/kg/min) compared to (42.4±2.03 mL/kg/min) the youngest group (20–29 yrs). It was found to be negatively correlated with age (r=−0.55and −0.33 for younger and older groups respectively) and directly associated with the body weight of the subjects (r=0.57–0.68,P≤0.001). Carriers showed maximum cardio respiratory capacity compared to other miners. Indian minersVO2maxwas found to be lower both compared to their abroad mining counterparts and various other non-mining occupational working groups in India.

A New Model for Estimating Peak Oxygen Uptake Based on Postexercise Measurements in Swimming

2016 ◽  
Vol 11 (4) ◽  
pp. 419-424 ◽  
Author(s):  
Diego Chaverri ◽  
Thorsten Schuller ◽  
Xavier Iglesias ◽  
Uwe Hoffmann ◽  
Ferran A. Rodríguez
Keyword(s):  
Mathematical Model ◽  
Heart Rate ◽  
Oxygen Uptake ◽  
Peak Oxygen Uptake ◽  
Mean Difference ◽  
Time Intervals ◽  
Front Crawl ◽  
Immediate Recovery ◽  
Elite Swimmers ◽  
The Subject

Purpose:Assessing cardiopulmonary function during swimming is a complex and cumbersome procedure. Backward extrapolation is often used to predict peak oxygen uptake (V̇O2peak) during unimpeded swimming, but error can derive from a delay at the onset of V̇O2 recovery. The authors assessed the validity of a mathematical model based on heart rate (HR) and postexercise V̇O2 kinetics for the estimation of V̇O2peak during exercise.Methods:34 elite swimmers performed a maximal front-crawl 200-m swim. V̇O2 was measured breath by breath and HR from beat-to-beat intervals. Data were time-aligned and 1-s-interpolated. Exercise V̇O2peak was the average of the last 20 s of exercise. Postexercise V̇O2 was the first 20-s average during the immediate recovery. Predicted V̇O2 values (pV̇O2) were computed using the equation: pV̇O2(t) = V̇O2(t) HRend-exercise/HR(t). Average values were calculated for different time intervals and compared with measured exercise V̇O2peak.Results:Postexercise V̇O2 (0–20 s) underestimated V̇O2peak by 3.3% (95% CI = 9.8% underestimation to 3.2% overestimation, mean difference = –116 mL/min, SEE = 4.2%, P = .001). The best V̇O2peak estimates were offered by pV̇O2peak from 0 to 20 s (r2 = .96, mean difference = 17 mL/min, SEE = 3.8%).Conclusions:The high correlation (r2 = .86–.96) and agreement between exercise and predicted V̇O2 support the validity of the model, which provides accurate V̇O2peak estimations after a single maximal swim while avoiding the error of backward extrapolation and allowing the subject to swim completely unimpeded.

scholarly journals Evaluation of true maximal oxygen uptake based on a novel set of standardized criteria

2009 ◽  
Vol 34 (2) ◽  
pp. 115-123 ◽  
Author(s):  
Adrian W. Midgley ◽  
Sean Carroll ◽  
David Marchant ◽  
Lars R. McNaughton ◽  
Jason Siegler
Keyword(s):  
Heart Rate ◽  
Oxygen Uptake ◽  
Maximal Oxygen Uptake ◽  
Maximal Heart Rate ◽  
The Novel ◽  
Small Individual ◽  
The Difference ◽  
Uptake Test ◽  
Mean Differences ◽  
The Individual

In this study, criteria are used to identify whether a subject has elicited maximal oxygen uptake. We evaluated the validity of traditional maximal oxygen uptake criteria and propose a novel set of criteria. Twenty athletes completed a maximal oxygen uptake test, consisting of an incremental phase and a subsequent supramaximal phase to exhaustion (verification phase). Traditional and novel maximal oxygen uptake criteria were evaluated. Novel criteria were: oxygen uptake plateau defined as the difference between modelled and actual maximal oxygen uptake >50% of the regression slope of the individual oxygen uptake–workrate relationship; as in the first criterion, but for maximal verification oxygen uptake; and a difference of ≤4 beats·min–1 between maximal heart rate values in the 2 phases. Satisfying the traditional oxygen uptake plateau criterion was largely an artefact of the between-subject variation in the oxygen uptake–workrate relationship. Secondary criteria, supposedly an indicator of maximal effort, were often satisfied long before volitional exhaustion, even at intensities as low as 61% maximal oxygen uptake. No significant mean differences were observed between the incremental and verification phases for oxygen uptake (t = 0.4; p = 0.7) or heart rate (t = 0.8; p = 0.5). The novel oxygen uptake plateau criterion, maximal oxygen uptake verification criterion, and maximal heart rate verification criterion were satisfied by 17, 18, and 18 subjects, respectively. The small individual absolute differences in oxygen uptake between incremental and verification phases observed in most subjects provided additional confidence that maximal oxygen uptake was elicited. Current maximal oxygen uptake criteria were not valid and novel criteria should be further explored.

Trends in aerobic fitness among Canadians, 1981 to 2007–2009

2012 ◽  
Vol 37 (3) ◽  
pp. 511-519 ◽  
Author(s):  
Cora L. Craig ◽  
Margot Shields ◽  
Allana G. Leblanc ◽  
Mark S. Tremblay
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Young People ◽  
Aerobic Fitness ◽  
Step Test ◽  
Surveillance Systems ◽  
Older Individuals ◽  
Prediction Equations ◽  
Test Protocol ◽  
Fitness Levels

Public health surveillance systems often monitor physical activity trends, but fitness assessment is relatively rare. This study investigated secular changes in aerobic fitness among Canadian adults and children. Participants aged 8–69 years were from 2 nationally representative surveys, conducted in-home in 1981 and in mobile examination centers in 2007–2009. In both surveys, submaximal step tests using progressive age- and sex-specific exercise stages were completed after initial screening (Physical Activity Readiness Questionnaire, heart rate, blood pressure). Between surveys, the step-test protocol had been modified to reduce underestimation of fitness among fitter and older individuals. Maximal oxygen uptake was estimated for adults using validated historical and updated prediction equations, adjusted to reflect protocol differences. Because these equations are not validated for young people, maximal aerobic power was predicted at a heart rate of 200 beats·min–1 by regressing observed heart rates on the oxygen costs of stepping for children and youth who completed at least 2 exercise stages. Overall, despite protocol differences, we found that the aerobic fitness levels of Canadians were lower in 2007–2009 than in 1981, with declines apparent in all age and both sex groups, thereby increasing the number of those at risk of adverse health outcomes. Future work is required to validate prediction equations of aerobic fitness for young people to make it possible to compare fitness levels over the lifespan and across time.

scholarly journals Rescue Operations Lead to Increased Cardiovascular Stress in HEMS Crew Members: A Prospective Pilot Study of a German HEMS Cohort

2021 ◽  
Vol 10 (8) ◽  
pp. 1602
Author(s):  
Markus Strauss ◽  
Janosch Dahmen ◽  
Sophia Hutter ◽  
Marko Brade ◽  
Roman Leischik
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Cardiovascular System ◽  
Helicopter Emergency Medical Service ◽  
Stress Profile ◽  
Maximal Heart Rate ◽  
Cardiac Events ◽  
Rescue Operation ◽  
Cardiovascular Stress ◽  
The Difference

Helicopter emergency medical service (HEMS) is an essential part of prehospital emergency medicine. The working conditions lead to high physical stress, especially in rescue operations. The study aimed to determine the cardiovascular stress profile during rescue situations in HEMS crew members. Twenty-one HEMS crew members (male n = 20) participated in the prospective study. Heart rate, blood pressure and long-term ECG measurements were recorded during the whole operation day. The changes of measurements during rescue operation (52 operations in total) were compared to these of standby time. Rescue operations lead to increased load on the cardiovascular system, as expressed by significantly higher blood pressure, heart rate values and rate of cardiac events compared to standby time. Of special note, the difference in systolic blood pressure mean was 7.4 ± 9.0 mmHg (CI [5.1; 9.7], p < 0.001). Maximal heart rate was on average 33.7 bpm higher during rescue operation than in the standby time (CI [26.2; 40.8], p < 0.001). Cardiac events occurred significantly more frequently during the period of rescue operation than in standby time hours (p = 0.02). The results reported a significant load on the cardiovascular system during rescue operations in HEMS crew members. Therefore, it is necessary to carry out a risk stratification of the HEMS crew members to prevent cardiovascular risk and events.

scholarly journals PHYSICAL, PHYSIOLOGICAL AND PSYCHOLOGICAL FITNESS OF INDEPENDENT ACTIVE AND NON-ACTIVE OLDER FEMALE ADULTS

2015 ◽  
Vol 4 (99) ◽  
pp. 46-53
Author(s):  
Rebeka Prosoli ◽  
Lovro Štefan ◽  
Renata Barić ◽  
Goran Sporiš
Keyword(s):  
Quality Of Life ◽  
Body Mass Index ◽  
Body Mass ◽  
Psychological Health ◽  
Scratch Test ◽  
Step Test ◽  
Test Protocol ◽  
Health Satisfaction ◽  
Fitness Tests

Background. Aging represents period of life when human body undergoes great changes affecting people’s condition and overall health. The aim of the research was to determine differences of motor and functional abilities along with satisfaction and quality of life between active and non-active female older adults. Methods. Twenty-one elderly female adults were classified in two groups: thirteen active (mean age 66.54 ± 4.59 years; mean height 158.08± 5.35 cm; mean weight 75.47 ± 13.52 kg; mean body mass index 30.18 ± 0.49 kg/m 2 ) and eight non-active (mean age 71.81 ± 7.15 years; mean height 160.55 ± 6.34 cm; mean weight 74.40 ± 14.06 kg; mean body mass index 28.84 ± 0.35 kg/m 2 ) female adults. For the purpose of this study, all participants were asked to complete senior fitness test protocol prescribed by Rikli and Jones (2013), which consisted of eight tests: 30-second chair stand test, 30-second arm curl test, 2-minute step test, chair sit-and-reach test, back scratch test, 8-foot up-and- go test, height and weight. Along with that, participants filled in Croatian version of WHOQOL-BREF questionnaire (Pibernik-Okanović, 2001) including four domains (physical health, psychological health, social environment and environment) with two additional questions about their satisfaction with health and their quality of life on the Likert scale ranging from 1to 5. The differences between active and non-active groups were examined using Man-Witney U-test. Significance was set at p < .05. Results. Results showed significant differences in four fitness tests: 30-second arm curl test (p = .03), 2-minute step test (p = .00), chair sit-and-reach test (p = .02), 8-foot up-and-go test (p = .01) and two questionnaire domains: psychological health (p = .04) and environment (p = .01). No statistical differences were found among perception of the quality of life and health satisfaction between non-active and active participants (p > .05). Conclusion. This study showed that older female adults had better achievements in motor and psychological tests, which could be translated to better physical overall fitness and preparedness of doing everyday activities in comparison to non-active group. Research showed the importance of exercising in older age, but further studies on bigger samples need to be performed for better understanding of aging and differences in levels of fitness.

Levels of Sustainable Aerobic Workload in Dialysis Patients

1998 ◽  
Vol 21 (7) ◽  
pp. 391-397 ◽  
Author(s):  
E.M. Capodaglio ◽  
G. Villa ◽  
D. Jurisic ◽  
A. Salvadeo
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Chronic Hemodialysis ◽  
Step Test ◽  
Aerobic Performance ◽  
Subjective Ratings ◽  
Test Protocol ◽  
Physiological Variables ◽  
Arterial Blood ◽  
Starting Point

The aerobic performance of a heterogeneous group of 89 ambulatory medically stable patients on chronic hemodialysis was studied to define individual levels of the most acceptable metabolic workload. The patients performed a step test protocol (3 steps) with a cycle ergometer. Each step (25 Watt) lasted 6 min. Heart rate (HR), oxygen consumption (VO2), ventilation (VE), respiratory exchange ratio (RER), blood pressure (BP) and subjective ratings of dyspnea (CRd) and fatigue (CRf) levels were monitored throughout the test. The test was continued to exhaustion or to values of systolic arterial blood pressure (SABP) >240 mmHg, heart rate (HR) ≥ 85% max, or ST changes in ECG. In eleven patients (12.5% of the whole group) the test was interrupted within the first two minutes of exercise. In the remaining 78 patients, the maximum workload sustained for at least 3 min (MSW) was 25 Watts for 43 (48.5%), 50 Watts for 27 (30%), and 75 Watts for 8 (9%) patients. Performance was affected in a statistically significant manner by the subjects’ anagraphic age, but not by their dialytic age, hemoglobin (Hb) level or weight. Individual levels of tolerable workload were estimated for 60% of the group from the stability of physiological variables during 3 min, and from subjective ratings at a “moderate” level. This level corresponded to an average of 3.5±0.9 METs, at 60% of the HRmax, with a mean BP of 167±21/98±14 mmHg. This could become a safe starting point for a program of physical retraining.

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