scholarly journals Maximum Oxygen Consumption Differences According To Angiotensin Converter Enzyme Gene Polymorphisms Genotypes In Trail Running

2021 ◽  
Vol 53 (8S) ◽  
pp. 442-442
Author(s):  
Manuel A. Monrroy Uarac ◽  
Javier M. Enríquez Schmidt ◽  
Alejandro Pacheco Valles ◽  
Mauricio Barría Pailaquilén
Keyword(s):  
Oxygen Consumption ◽  
Gene Polymorphisms ◽  
Maximum Oxygen Consumption ◽  
Enzyme Gene ◽  
Trail Running

CARDIORESPIRATORY SYSTEM UNDER BICYCLE ERGOMETER TEST IN SKIERS WITH DIFFERENT TRAINING STATUS (KOMI REPUBLIC)

2019 ◽  
pp. 76-84
Author(s):  
Yu.G. Solonin ◽  
T.P. Loginova ◽  
I.O. Garnov ◽  
A.L. Markov ◽  
A.A. Chernykh ◽  
...  
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Komi Republic ◽  
Rate Pressure Product ◽  
Training Status ◽  
Maximum Oxygen Consumption ◽  
Bicycle Ergometry ◽  
Cardiorespiratory System ◽  
Unit Pulse ◽  
Ski Racers

The aim of the study is to examine the impact of training status on ski racers (Komi Republic) at rest and under bicycle ergometry evaluating their cardiorespiratory system parameters. Materials and Methods. The authors examined male ski racers with different training status: 22 first-rank sportsmen, 22 candidates for Master of Sports and 22 Masters of Sports. Athletes underwent bicycle ergometry loads up to refusal. Oxycon Pro system (Germany) was used. Then authors studied the complex of cardiorespiratory parameters, calculating maximum oxygen consumption and unit physiological cost. Results. At rest and under standard physical load (200 W) Masters of Sports demonstrate significantly increased training status among ski racers in such cardiorespiratory system parameters as heart rate, rate pressure product and oxygen pulse. Under standard physical load (200 W) statistically significant differences between first-rank sportsmen and candidates for Master of Sports are detected by heart rate, rate pressure product, respiration rate, respiratory minute volume and oxygen utilization coefficient. Such deviations indicate differences in training status. Under maximum load, the highest training status is found in Masters of Sports: bicycle ergometry load power and duration; unit pulse, pressor and cardiac cost, bulk and unit values of maximum oxygen consumption. Heart rate values, unit pulse and heart-vent cost indicate a high training status in candidates for Master of Sports under load up to refusal, if compared with first-rank sportsmen. Athletes’ organism under load up to refusal works more efficiently than under moderate load (200 W). The training status in ski racers (Komi Republic) is manifested in the saving cardiorespiratory system functions, both at rest and under standard bicycle ergometry, as well as in parameters of unit physiological cost under loads up to refusal and increased values of maximum oxygen consumption. Keywords: ski racers, Komi Republic, training status, bicycle ergometry loads, cardiorespiratory system, maximum oxygen consumption.

scholarly journals Zumba®, Fat Mass and Maximum Oxygen Consumption: A Systematic Review and Meta-Analysis

2020 ◽  
Vol 18 (1) ◽  
pp. 105
Author(s):  
Manuel Chavarrias ◽  
Santos Villafaina ◽  
Ana Myriam Lavín-Pérez ◽  
Jorge Carlos-Vivas ◽  
Eugenio Merellano-Navarro ◽  
...  
Keyword(s):  
Systematic Review ◽  
Oxygen Consumption ◽  
Body Mass ◽  
Fat Mass ◽  
Evidence Synthesis ◽  
Meta Analysis ◽  
P Value ◽  
Maximum Oxygen Consumption ◽  
Mass Percentage ◽  
Large Heterogeneity

Background and objectives: Obesity or overweight is associated with many health risk factors and preventable mortality. Even people with normal weight and without history of obesity or overweight should avoid weight gain to reduce health risks factors. In this regard Latin aerobic dances involved in Zumba® practice make this modality motivating for people. Apart from weight loss and VO2peak benefits, Zumba practice is also interesting by the increase in adherence which can also avoid weight regain. The aim was to systematically review the scientific literature about the effects of any randomized intervention of Zumba® practice on total fat mass (%) and maximum oxygen consumption (VO2peak), besides establishing directions for the clinical practice. Evidence acquisition: Two systematic searches were conducted in two electronic databases following the PRISMA guidelines. The eligibility criteria were (a) outcomes: body mass or VO2peak data including mean and standard deviation (SD) before and after Zumba® intervention, (b) study design: randomized controlled trial (RCT) and (c) language: English. GRADE guidelines were used to assess the quality of evidence. A meta-analysis was performed to determine mean differences. Nine and four studies were selected for fat mass percentage and VO2peak in the systematic review, respectively. However, only eight studies for fat mass percentage and three for VO2peak could be included in the meta-analysis. Evidence synthesis: The overall standardized mean difference for fat mass was −0.25 with a 95% CI from −0.67 to 0.16 with a p-value of 0.69, with large heterogeneity. On the other hand, the overall effect size for VO2peak was 0.53 (95% CI from 0.04 to 1.02 with a p-value of 0.03) with large heterogeneity. Conclusions: Based on the evidence, we cannot conclude that Zumba® is effective at reducing body mass but it may improve VO2peak. However, the limited number of studies that met the inclusion criteria makes it too early to reach a definite conclusion, so more research is needed.

Role of Xenobiotic-Metabolizing Enzyme Gene Polymorphisms and Interactions with Environmental Factors in Susceptibility to Gastric Cancer in Kashmir Valley

2009 ◽  
Vol 40 (1-2) ◽  
pp. 26-32 ◽  
Author(s):  
Manzoor A. Malik ◽  
Rohit Upadhyay ◽  
Rama D. Mittal ◽  
Showket A. Zargar ◽  
Dinesh R. Modi ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Environmental Factors ◽  
Gene Polymorphisms ◽  
Kashmir Valley ◽  
Enzyme Gene ◽  
Metabolizing Enzyme

Seasonal changes in aerobic fitness indices in elite cyclists

2008 ◽  
Vol 33 (4) ◽  
pp. 735-742 ◽  
Author(s):  
Aldo Sassi ◽  
Franco M. Impellizzeri ◽  
Andrea Morelli ◽  
Paolo Menaspà ◽  
Ermanno Rampinini
Keyword(s):  
Oxygen Consumption ◽  
Aerobic Fitness ◽  
Power Output ◽  
Seasonal Changes ◽  
Peak Power Output ◽  
Time To Exhaustion ◽  
Absolute Maximum ◽  
Maximum Oxygen Consumption ◽  
Main Effect ◽  
Elite Cyclists

The primary purpose of this study was to compare seasonal changes in cycling gross efficiency (GE) and economy (EC) with changes in other aerobic fitness indices. The secondary aim was to assess the relationship between maximum oxygen consumption, GE, and EC among elite cyclists. The relationships of maximum oxygen consumption with GE and EC were studied in 13 cyclists (8 professional road cyclists and 5 mountain bikers). Seasonal changes in GE and EC, predicted time to exhaustion (pTE), maximum oxygen consumption, and respiratory compensation point (RCP) were examined in a subgroup of 8 subjects, before (TREST) and after (TPRECOMP) the pre-competitive winter training, and during the competitive period (TCOMP). GE and EC were assessed during a constant power test at 75% of peak power output (PPO). Significant main effect for time was found for maximum oxygen consumption (4.623 ± 0.675, 4.879 ± 0.727, and 5.010 ± 0.663 L·min–1; p = 0.028), PPO (417.8 ± 46.5, 443.0 ± 48.0, and 455 ± 48 W; p < 0.001), oxygen uptake at RCP (3.866 ± 0.793, 4.041 ± 0.685, and 4.143 ± 0.643 L·min–1; p = 0.049), power output at RCP (330 ± 64, 354 ± 52, and 361 ± 50 W; p < 0.001), and pTE (17 ± 4, 30 ± 8, and 46 ± 17 min; p < 0.001). No significant main effect for time was found in GE (p = 0.097) or EC (p = 0.225), despite within-subject seasonal changes. No significant correlations were found between absolute maximum oxygen consumption and GE (r = –0.276; p = 0.359) or EC (r = –0.328; p = 0.272). However, cyclists with high maximum oxygen consumption values (i.e., over 80 mL·kg–1·min–1), showed low efficiency rates. Despite within-subject seasonal waves in cycling efficiency, changes in GE and EC should not be expected as direct consequence of changes in other maximal and submaximal parameters of aerobic fitness (i.e., maximum oxygen consumption and RCP).

scholarly journals Association of Angiotensin Converting Enzyme Gene Polymorphisms with Left Ventricular Hypertrophy

2005 ◽  
Vol 28 (4) ◽  
pp. 345-349 ◽  
Author(s):  
Mohammad SAEED ◽  
Danish SALEHEEN ◽  
Sammer SIDDIQUI ◽  
Aisha KHAN ◽  
Zahid A. BUTT ◽  
...  
Keyword(s):  
Left Ventricular Hypertrophy ◽  
Angiotensin Converting Enzyme ◽  
Gene Polymorphisms ◽  
Ventricular Hypertrophy ◽  
Left Ventricular ◽  
Angiotensin Converting Enzyme Gene ◽  
Converting Enzyme ◽  
Enzyme Gene

scholarly journals THE EFFECT OF ARTISTIC GYMNASTICS AND STEP AEROBICS ON PHYSICAL PERFORMANCE IN FIRST-YEAR FEMALE UNIVERSITY STUDENTS NOT RELATED TO SPORT

2019 ◽  
Vol 19 (3) ◽  
pp. 66-73 ◽  
Author(s):  
M Avdeeva ◽  
T Belicheva
Keyword(s):  
Oxygen Consumption ◽  
University Students ◽  
Physical Performance ◽  
First Year ◽  
Maximum Oxygen Consumption ◽  
Standing Long Jump ◽  
Long Jump ◽  
The Mean ◽  
Group 2 ◽  
Group 1

Aim. The article deals with establishing the effect of step aerobics and artistic gymnastics on physical performance in first year female university students. Materials and methods. 80 full-time female university students participated in the study. The first group practiced artistic gymnastics (Group 1, n = 40), the second group (Group 2, n = 40) – step aerobics. The mean age was 18.35 ± 0.04 years. In September and December 2017, their physical development, physical fitness, physical performance, respiratory and cardiovascular systems were assessed based on standard procedures using the data of maximum oxygen consumption and the step test. Results. At the beginning of the experiments, there were no statistically significant differences between Group 1 and Group 2. The mean maximum oxygen consumption values corresponded to satisfactory performance (39.85 ± 0.37 – Group 1, 38.92 ± 0.42 – Group 2, р = 0.1). At the end of the experiment, there were statistically significant differences in terms of the mean maximum oxygen consumption: 40.73 ± 0.21 – Group 1 and 41.61 ± 0.21 – Group 2. The results of the ranking showed that the majority of participants demonstrated an increase in physical performance. Group 1 showed an increase in the standing long jump, Group 2 improved 2000 m running time and the standing long jump. Group 2 also demonstrated a decrease in heart rate and an increase in adaptation capacities. Conclusion. The lessons of artistic gymnastics during a semester do not influence significantly physical performance but improve speed-strength characteristics. Step aerobics influences positively physical performance, speed-strength characteristics, and the cardio­vascular system in first-year female university students not related to sport.

scholarly journals THE IMPACT OF 4-WEEK AEROBIC TRAINING ON THE AEROBIC STATUS OF TOP-LEVEL JUDOKAS

2018 ◽  
Vol 16 (1) ◽  
pp. 201
Author(s):  
Milenko Milošević ◽  
Predrag Nemec ◽  
Vesna Nemec ◽  
Miloš Milošević
Keyword(s):  
Oxygen Consumption ◽  
Anaerobic Threshold ◽  
Aerobic Training ◽  
Maximal Oxygen Consumption ◽  
Maximum Amount ◽  
Metabolic Adaptation ◽  
Maximum Oxygen Consumption ◽  
Training Methodology ◽  
The Impact ◽  
Powerful Incentive

The aim of this paper is to use a training methodology that we believe to be a powerful incentive for cardiovascular and metabolic adaptation via individually programmed aerobic running directly through the consumption of oxygen. The experiment was carried out on a top judo team of 9 competitors in a 4-week training period. The distribution of training loads ranged between the anaerobic threshold and maximum oxygen consumption. In four weeks of training, the judokas significantly improved their results for maximum oxygen consumption (VO2max) from 2% to 15%, maximum relative oxygen consumption (VO2rel) from 2% to 16%, the Cooper test (K) from 2% to 15% and the speed at which the maximum amount of oxygen (vVO2max) is expended, from 2% to 15%. The judokas started from 64% to 83% of their genetic capacity in maximal oxygen consumption (VO2max), from 64% to 83% in maximum relative oxygen consumption (VO2rel) and 70% to 85% of the capacity at which they consumed the maximum amount of oxygen (vVO2max). After 4 weeks of training, 72% to 91% of the genetic capacity of maximum oxygen consumption (VO2max) ranged from 74% to 92% of the maximum relative oxygen consumption (VO2rel) and from 78% to 93% of the genetically projected capacity at the maximum amount of oxygen rate (vVO2max). In order to achieve these results, the judokas had to expend 943.80 to 1887.71 liters of oxygen ((∑VO2) to cross a distance ((∑ DT) from 67523.0 m to 102386.0 m and consume from 4719 to 9438.55 kilocalories ((∑ kcal).

scholarly journals THE FUNCTIONAL READINESS OF ATHLETES FROM CYCLIC SPORTS

2020 ◽  
Vol 20 (1) ◽  
pp. 128-134
Author(s):  
V Kornyakova ◽  
V Badtieva ◽  
V Сonway
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Recovery Period ◽  
Track And Field ◽  
Stress Index ◽  
Physical Fatigue ◽  
Maximum Oxygen Consumption ◽  
Highly Skilled ◽  
Biochemical Research ◽  
Physiological And Biochemical

Aim. The study aims at assessing the functional status of highly skilled athletes from track-and-field and ski sports and determining fatigue criteria. Materials and methods. Highly skilled track-and-field athletes (43) and skiers (16) underwent examination at the preparatory stage of a training cycle. The functional readiness of athletes was assessed using questionnaires, anthropometric, physiological and biochemical research methods. Results. According to the medical history and questionnaire data, all athletes were divided into two groups: the first group included subjects without any signs of fatigue, the second group comprised athletes with fatigue complaints. In athletes with fatigue complaints, increased heart rate was recorded both at rest and after the recovery period; physical efficiency reduced by 28 %, maximum oxygen consumption – by 17.7 %. Heart rate variability in these athletes demonstrates the increased activity of the sympathetic nervous system and increased stress index of the regulatory systems. Glutathione content and the activity of antioxidant enzymes (superoxide dismutase, glutathione peroxidase and glutathione reductase) were lower in the erythrocytes of the second group. Some alterations in physiological and biochemical data of the second group demonstrated the presence of physical fatigue. Conclusion. 37.3 % of athletes from cyclic sports experienced any fatigue. The data of antioxidant protection, physical efficiency, maximum oxygen consumption and heart rate variabi­lity can be used for a comprehensive assessment of functional readiness and physical fatigue in athletes.

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