scholarly journals Comparison of Methods for Determining Aerobic Exercise Intensity Using Heart Rate in Acute Leukemia Patients Prior to Induction Chemotherapy

2016 ◽  
Vol 18 (4) ◽  
pp. 432-438 ◽  
Author(s):  
Christina Story ◽  
Ashley Leak Bryant ◽  
Brett Phillips ◽  
Charlotte Bailey ◽  
Edgar W. Shields ◽  
...  
Keyword(s):  
Heart Rate ◽  
Acute Leukemia ◽  
Aerobic Exercise ◽  
Exercise Intensity ◽  
Controlled Trial ◽  
Cardiopulmonary Exercise Testing ◽  
Cycle Ergometer ◽  
Aerobic Exercise Training ◽  
Intensity Level ◽  
Low Intensity

Introduction: Cardiopulmonary exercise testing (CPET), the gold standard of cardiopulmonary evaluation, is used to determine VO2 levels at different aerobic exercise training intensities; however, it may not be feasible to conduct CPET in all clinical settings. Aims: To compare the heart rate reserve (HRR) and percent of 220-age methods for prescribing cycle ergometry exercise intensity using heart rate (HR) against the HRs obtained during a CPET in adults undergoing treatment for acute leukemia (AL). Methods: In this exploratory study, part of a larger randomized controlled trial, 14 adults with AL completed CPET on a cycle ergometer with indirect calorimetry within 96 hr of admission to a cancer hospital to determine VO2peak and HR corresponding to low (40% VO2peak), moderate (60% VO2peak), and high (75% VO2peak) exercise intensities. Analyses of variance were used to compare estimated HR for each intensity level using the HRR and percent of 220-age methods with HR determined via VO2peak. Results: HR corresponding to low-intensity exercise differed significantly across all three methods ( p ≤ .05). No significant differences were observed between HR estimated via the percent of 220-age method and determined via VO2peak at moderate (100 ± 8 and 113 ± 24 bpm, p = .122) or high intensities (125 ± 10 and 123 ± 25 bpm, p = .994). Conclusion: In adults with AL, HR-based methods for defining aerobic exercise intensities should be used with caution. At low intensity, neither should be used, while at moderate and high intensities, the percent of 220-age equation might serve as an adequate substitute for CPET.

scholarly journals MANFAAT LATIHAN OLAHRAGA AEROBIK TERHADAP KEBUGARAN FISIK MANUSIA

2015 ◽  
Vol 3 (1) ◽  
Author(s):  
Chrisly M. Palar ◽  
Djon Wongkar ◽  
Shane H. R. Ticoalu
Keyword(s):  
Heart Rate ◽  
Blood Flow ◽  
Exercise Training ◽  
Physical Fitness ◽  
Aerobic Exercise ◽  
Exercise Intensity ◽  
Aerobic Exercise Training ◽  
Maximum Heart Rate ◽  
Speed Up ◽  
The Way

Abstract: Aerobic exercise is a kind of exercise systematically by increasing the load gradually and continuously using energy derived from the combustion using oxygen, and takes oxygen without causing fatigue. Examples of aerobic exercise is the way, jogging, running, cycling, and swimming. Physical fitness is the body’s ability to function effectively when working or doing other things, and still have enough energy to handle or emergencies that may arise. Before planning to do aerobic exercise, namely: the frequency of exercise three to five times every week, exercise intensity 60 - 80% of maximum heart rate, and duration of exercise 20 – 60 minutes.mConclusion: With regular aerobic exercise, blood flow to be smooth and speed up the disposal of metabolic waste substances, so that recovery takes place rapidly, and the person with not experience fatigue after performing the task, and still be able to perform other activities. Benefits of aerobic exercise training is increased physical fitness.Keywords: aerobic exercise, physical fitness.Abstrak: Latihan olahraga aerobik ialah aktivitas olahraga secara sistematis dengan peningkatan beban secara bertahap dan terus-menerus yang menggunakan energi yang berasal dari pembakaran dengan menggunakan oksigen, dan membutuhkan oksigen tanpa menimbulkan kelelahan.Contoh latihan olahraga aerobic adalah jalan, jogging, lari, bersepeda, dan renang. Kebugaran fisik adalah kemampuan tubuh untuk berfungsi secara efektif ketika bekerja atau melakukan aktivitas lainnya, dan masih memiliki cukup energi untuk menangani atau menghadapi keadaan darurat yang mungkin timbul. Sebelum merencanakan untuk melakukan latihan olahraga aerobik, perlu memperhatikan kriteria-kriteria yang berkaitan dengan takaran latihan, yaitu: frekuensi latihan tiga sampai lima kali setiap minggu, intensitas latihan 60-80% dari denyut jantung maksimal, dan durasi latihan 20 - 60 menit. Simpulan: Dengan pembuangan zat-zat sisa metabolisme, sehingga pemulihan berlangsung dengan cepat, dan seseorang tidak akan mengalami kelelahan setelah melaksanakan tugas, serta masih dapat melakukan aktivitas lainnya. Manfaat latihan olahraga aerobik ialah kebugaran fisik meningkat.Kata kunci: Latihan olahraga aerobik, kebugaran fisik.

scholarly journals A fuzzy control system for fitness service based on genetic algorithm during COVID-19 pandemic

2020 ◽  
Vol 39 (6) ◽  
pp. 8805-8812
Author(s):  
Zhihui He ◽  
Xiaofeng Li
Keyword(s):  
Genetic Algorithm ◽  
Heart Rate ◽  
Control System ◽  
Fuzzy Control ◽  
Aerobic Exercise ◽  
Exercise Intensity ◽  
Fuzzy Membership Function ◽  
Fuzzy Control System ◽  
Intensity Control ◽  
Epidemic Period

During the COVID-19 epidemic period, it is essential to strengthen physical exercise and improve the health of the whole people. In this paper, based on genetic algorithm, a fuzzy control system is proposed to dynamically adjust the exercise ability of the bodybuilders under the comprehensive consideration of parameters. Through experiments and data processing, the system obtains bioelectric information related to heart rate, heart rate variability and muscle fatigue of the fitness people in the three states of not fatigue, moderate fatigue and extreme fatigue, establishes fuzzy membership function, and thus establishes personalized fitness information feedback control strategy to maintain moderate fitness intensity. By narrowing the gap between the predicted RPE value based on objective information and the measured RPE, the method provides a unified subjective and objective exercise intensity for the bodybuilders, effectively expands the time of aerobic exercise, and enhances the effect of aerobic exercise. In addition, in order to expand the scope of application of the exercise intensity control model, the service-oriented transformation is carried out to enable it to provide fitness content combinations of interest to fitness practitioners and instructors.

Abstract 12949: Aerobic Exercise After an ICD: Results of the 6 Month Follow-Up in the Anti-Arrhythmic Effects of Exercise After an ICD Trial

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Cynthia M Dougherty ◽  
Robb Glenny ◽  
Peter Kudenchuk ◽  
Robert Burr
Keyword(s):  
Exercise Training ◽  
Aerobic Exercise ◽  
Aerobic Training ◽  
Cardiopulmonary Exercise Testing ◽  
Aerobic Exercise Training ◽  
Cardiopulmonary Function ◽  
Exercise Maintenance ◽  
Peak Vo2 ◽  
O2 Pulse

Introduction: The Anti-Arrhythmic Effects of Exercise Trial reported that aerobic exercise training for 8 weeks after an implantable cardioverter defibrillator (ICD) significantly improved the primary outcome of cardiopulmonary function without ICD shocks or adverse events. This is a report on the longer term outcomes at 24 weeks of exercise maintenance that was continued after aerobic training. Hypothesis: When 8 weeks of aerobic exercise training is followed by aerobic exercise maintenance (50% reduction in the amount of walking), cardiopulmonary function [peak VO2, EX time, VO2 at AT, O2 pulse, METS, Maximum HR] will be maintained without an increase in ICD shocks or hospitalizations. Methods: 160 subjects (80/group) with a prior ICD implant (40% primary and 60% secondary prevention), mean age 55 +12 years, 78% male, 84% Caucasian, 100% beta-blocked, and mean EF%=40%, entered a RCT comparing aerobic exercise to usual care (UC). At baseline, 8 and 24 weeks, participants completed cardiopulmonary exercise testing using a modified Balke treadmill protocol. Aerobic training= 8 weeks of home walking 1 hour/day on 5 days/week at 60-80% of maximum HR using the Karvonen formula, was followed by aerobic maintenance (EX)= 16 weeks of home walking for 150 min/week. ICD shocks and hospitalizations were verified with medical records. Analysis of variance was used to determine group x time effects on study outcomes. Results: Aerobic maintenance significantly increased peak VO2 ml/kg/min, p<0.000 (EX 26.9+7.7, UC 23.4+6.0), EX minutes, p<0.000 (EX 16:27+ 6:36; UC 13:24+4:33), VO2 at AT ml/kg/min, p=0.001 (EX 23.0+6.8; UC 19.8+5.8), O2 pulse p=0.01 (EX 18.7+5.5; UC 16.8+4.9), and METS, p<0.001 (EX 7.6+2.2; UC 6.7+1.8). Maximum HR was unchanged. The number of ICD shocks related to exercise was =1: 3 in UC and 1 in exercise received an ICD shock or ATP during follow-up. There were 11 hospitalizations in each group, none were related to exercise. Conclusions: Aerobic exercise maintenance for 16 weeks that followed aerobic exercise training for 8 weeks, maintained gains in cardiopulmonary function despite reducing the amount of walking by half (300 min vs. 150 min). Aerobic exercise in patients with an ICD is safe without increasing the number of ICD shocks or hospitalizations.

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