scholarly journals Determination of Relationship Between Respiratory Parameters and Aerobic Capacity of Referees

2014 ◽  
Vol 152 ◽  
pp. 1267-1273 ◽  
Author(s):  
Mürşit Ceyhun Birinci ◽  
Ali Kerim Yılmaz ◽  
Alperen Erkin ◽  
Sezgin Şahbaz ◽  
İlkay Aydın
Keyword(s):  
Aerobic Capacity ◽  
Respiratory Parameters

scholarly journals Determination of Relationship between Respiratory Parameters and Aerobic Capacity of Referees

2014 ◽  
Vol 152 ◽  
pp. 353-357
Author(s):  
M. Ceyhun Birinci ◽  
A. Kerim Yılmaz ◽  
Alperen Erkin ◽  
Sezgin Sahbaz ◽  
İlkay Aydın
Keyword(s):  
Aerobic Capacity ◽  
Respiratory Parameters

Disposal of blood [1-13C]lactate in humans during rest and exercise

1986 ◽  
Vol 60 (1) ◽  
pp. 232-241 ◽  
Author(s):  
R. S. Mazzeo ◽  
G. A. Brooks ◽  
D. A. Schoeller ◽  
T. F. Budinger
Keyword(s):  
Blood Lactate ◽  
Lactate Concentration ◽  
Blood Lactate Concentration ◽  
Curvilinear Relationship ◽  
O2 Consumption ◽  
Lactate Oxidation ◽  
Respiratory Parameters ◽  
Steady Rate ◽  
Lactate Levels

Lactate irreversible disposal (RiLa) and oxidation (RoxLa) rates were studied in six male subjects during rest (Re), easy exercise [EE, 140 min of cycling at 50% of maximum O2 consumption (VO2max)] and hard exercise (HE, 65 min at 75% VO2max). Twenty minutes into each condition, subjects received a Na+-L(+)-[1–13C]lactate intravenous bolus injection. Blood was sampled intermittently from the contralateral arm for metabolite levels, acid-base status, and enrichment of 13C in lactate. Expired air was monitored continuously for determination of respiratory parameters, and aliquots were collected for determination of 13C enrichment in CO2. Steady-rate values for O2 consumption (VO2) were 0.33 +/- 0.01, 2.11 +/- 0.03, and 3.10 +/- 0.03 l/min for Re, EE, and HE, respectively. Corresponding values of blood lactate levels were 0.84 +/- 0.01, 1.33 +/- 0.05, and 4.75 +/- 0.28 mM in the three conditions. Blood lactate disposal rates were significantly correlated to VO2 (r = 0.78), averaging 123.4 +/- 20.7, 245.5 +/- 40.3, and 316.2 +/- 53.7 mg X kg-1 X h-1 during Re, EE, and HE, respectively. Lactate oxidation rate was also linearly related to VO2 (r = 0.81), and the percentage of RiLa oxidized increased from 49.3% at rest to 87.0% during exercise. A curvilinear relationship was found between RiLa and blood lactate concentration. It was concluded that, in humans, 1) lactate disposal (turnover) rate is directly related to the metabolic rate, 2) oxidation is the major fate of lactate removal during exercise, and 3) blood lactate concentration is not an accurate indicator of lactate disposal and oxidation.

scholarly journals Aerobic capacity and respiratory patterns are better in recreational basketball-engaged university students than age-matched untrained males

2021 ◽  
Vol 13 (1) ◽  
pp. 111-120
Author(s):  
Mladen Mikić ◽  
Marko D.M. Stojanović ◽  
Aleksandra Milovančev ◽  
Tatjana Miljković ◽  
Marija Bjelobrk ◽  
...  
Keyword(s):  
Body Weight ◽  
Oxygen Consumption ◽  
University Students ◽  
Aerobic Capacity ◽  
Ventilatory Threshold ◽  
Maximal Oxygen Consumption ◽  
Body Height ◽  
Time To Exhaustion ◽  
Respiratory Parameters ◽  
Recreational Basketball

Abstract Study aim: To asses and compare the aerobic capacity and respiratory parameters in recreational basketball-engaged university students with age-matched untrained young adults. Material and methods: A total of 30 subjects were selected to took part in the study based on recreational-basketball activity level and were assigned to a basketball (BG: n = 15, age 22.86 ± 1.35 yrs., body height 185.07 ± 5.95 cm, body weight 81.21 ± 6.15 kg) and untrained group (UG: n = 15, age 22.60 ± 1.50 yrs., body height 181.53 ± 6.11 cm, body weight 76.89 ± 7.30 kg). Inspiratory vital capacity (IVC), forced expiration volume (FEV1), FEV1/IVC ratio, maximal oxygen consumption (VO2max), ventilatory threshold (VO2VT) and time to exhaustion, were measured in all subjects. Student T-test for independent Sample and Cohen’s d as the measure of the effect size were calculated. Results: Recreational basketball-engaged students (EG) reached significantly greater IVC (t = 7.240, p < 0.001, d = 1.854), FEV1 (t = 10.852, p < 0.001, d = 2.834), FEV1/IVC ratio (t = 6.370, p < 0.001, d = 3.920), maximal oxygen consumption (t = 9.039, p < 0.001, d = 3.310), ventilatory threshold (t = 9.859, p < 0.001, d = 3.607) and time to exhaustion (t = 12.361, p < 0.001, d = 4.515) compared to UG. Conclusions: Long-term exposure to recreational basketball leads to adaptive changes in aerobic and respiratory parameters in male university students.

Design and Implementation of Digital Asthma Diagnosis System

2019 ◽  
Vol 14 (3) ◽  
pp. 1-15
Author(s):  
Qinghua Yao ◽  
Xiantao Yang
Keyword(s):  
Mathematical Model ◽  
Mutation Rate ◽  
Forced Expiratory Volume ◽  
Digital Signals ◽  
Respiratory Parameters ◽  
The Mathematical Model ◽  
The Relationship ◽  
Objective Indicators ◽  
Signal Conditioning Circuit

In this article, the MSP430F149 is the microcontroller (MCU), and a pressure sensor, MPX5100AP, is used to measure body measurement of maximal forced expiratory volume (FEV) and peak expiratory flow rate (PEFR). The two analog signals are processed by the signal conditioning circuit, and then the corresponding digital signals are acquired by the MCU. With the related operations of multiple respiratory parameters, a built-up time of respiration signal mutation rate values and the determination of the mutation rate, a mathematical model is built among FEV, PEFR and the rate of variation. The mathematical model of the system is analyzed, and the relationship between the detection results and the degree of airway obstruction is established. Finally, the patient's condition analysis results are given directly on the LCD, which provided the objective indicators for the medical treatment of the disease.

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.

The reproducibility of the Bruce protocol exercise test for the determination of aerobic capacity in older women

1997 ◽  
Vol 29 (8) ◽  
pp. 1109-1113 ◽  
Author(s):  
ROGER A. FIELDING ◽  
WALTER R. FRONTERA ◽  
VIRGINIA A. HUGHES ◽  
ELIZABETH C. FISHER ◽  
W. J. EVANS
Keyword(s):  
Older Women ◽  
Aerobic Capacity ◽  
Exercise Test ◽  
Bruce Protocol

Non-exhaustive test for aerobic capacity determination in swimming rats

2006 ◽  
Vol 31 (6) ◽  
pp. 731-736 ◽  
Author(s):  
Fúlvia de Barros Manchado ◽  
Claudio Alexandre Gobatto ◽  
Fabricio Azevedo Voltarelli ◽  
Maria Alice Rostom de Mello
Keyword(s):  
Blood Lactate ◽  
Body Mass ◽  
Aerobic Capacity ◽  
Lactate Concentration ◽  
Linear Interpolation ◽  
Progressive Increase ◽  
Blood Collection ◽  
Adult Rats ◽  
Capacity Determination

The aim of this study was to describe a double-bout exercise test for non-exhaustive aerobic capacity determination in swimming rats. Adult rats were submitted to 4 swimming tests at different intensities (4%, 6%, 7%, and 8% of body mass), with intervals of 48 h between them. Two exercise bouts of equal intensity lasting 5 min were performed, separated by 2 min with blood collection for lactate analysis. For each intensity, delta lactate was determined by subtracting lactate concentration at the end of the first effort from the lactate at the end of the second effort. Individual linear interpolation of delta lactate concentration enabled determination of a “null” delta, equivalent to the critical load (CL). Maximal lactate steady state (MLSS) was also determined. The estimated CL was of 4.8% body mass and the MLSS was observed at 100% of CL, with blood lactate of 5.20 mmol/L. At 90%, blood lactate stabilized, with a progressive increase to 110% CL. These results offer a potential determination of aerobic capacity in swimming rats.

scholarly journals Aerobic Capacity as An Indicator in Different Kinds of Sports

2010 ◽  
Vol 10 (1) ◽  
pp. 44-48 ◽  
Author(s):  
Goran Ranković ◽  
Vlada Mutavdžić ◽  
Dragan Toskić ◽  
Adem Preljević ◽  
Miodrag Kocić ◽  
...  
Keyword(s):  
Oxygen Uptake ◽  
Aerobic Capacity ◽  
Maximal Oxygen Uptake ◽  
Physical Capacity ◽  
Control Group ◽  
Football Players ◽  
Vo2 Max ◽  
Functional Changes ◽  
Volleyball Players

Physical capacity of athletes is an important element of success in sports achievements. Aerobic capacity has been accepted as its major component. Maximal oxygen uptake (VO2max) has been regarded by majority of authors as the best indicator of aerobic capacity of an organism, and at the same time, the best indicator of an athlete’s physical capacity. The aim of the investigation was to analyze the aerobic capacity as an indicator of physical capacity of athletes, differences in their aerobic capacity with regard to the kind of sport they are practicing, as well as the differences obtained when compared to physically inactive subjects. The investigation included the determination of absolute and relative VO2max in the total of 66 male examinees. The examinees were divided into two groups of active athletes (football players (n=22) and volleyball players (n=18) of different profiles, while the third group of non-athletes served as control group. Maximal oxygen uptake was determined by performing the Astrand 6 minute cycle test. Peak values of VO2 max were recorded in the group of football players (4,25±0,27 l/min), and they were statistically significantly higher (p<0,001) compared to other examined groups. In the group of volleyball players the oxygen uptake was 3,95±0,18 l/min, while statistically significantly lower values were reported in the group of non-athletes compared to the groups of athletes (p<0,01). A similar ratio of VO2 max values was also shown by the analysis of values expressed in relative units. Our results showed that peak values of VO2 max were obtained in football players, and that football as a sport requires higher degree of endurance compared to volleyball. Having considered the morphological and functional changes which are the consequence of the training process, it can be concluded that VO2 max values are statistically significantly higher in the groups of athletes compared to the group of non-athletes.

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