Investigating the validity of allometrically designed equations to estimate VO2max in Iranian boys
Journal Title: National Journal of Physiology, Pharmacy and Pharmacology - Year 2018, Vol 8, Issue 5
Abstract
Background: Cardiac respiratory system plays an important role in individuals’ health, promotion of patients’ life quality, and professional athletes’ performance. It is of great importance to measure it for exchange of inhaled gases during sports stress tests as an efficient method to study the physiological efficacy of cardiac respiratory system and understand the active skeletal muscle metabolism in work measurement. Regarding the problems of measuring inhaled gases in sports maximal tests, using safe and simple methods with good validity in estimating the individuals’ cardiac respiratory preparedness becomes appropriate. Aims and Objectives: In this research, we aim to evaluate individual’s aerobic power with allometric equations through a simple mathematical formula. Materials and Methods: A total of 72 healthy youth boys with mean age (13.95 ± 1.84) years and weight (51.64 ± 13.15 kg) were divided into two groups of normal maturity (33 person) and non-normal (39 person) and participated in the maximal protocol of aerobics voluntarily. The practical capacity was measured directly by analyzer gas. Then, using regression analysis and harmonic graph of Bland Altman, we obtained the relationship between VO2 max from the standard method (direct measurement) and estimated (design allometric equations). Results: Iranian-specific allometric equations (VO2 max = 0.15 × lean body mass0.8, R = 0.73, SEE = 0.57) and (VO2 max = 0.97 × body surface area1.89, R = 0.72, SEE = 0.58) were designed with greater validity and neutrality of maturity. Conclusions: We can with use of this allometric equations, the amount of youth boys’ aerobic power, preparation and assessed without any sports test
Authors and Affiliations
Akbar Sazvar, Farzad Nazem
Keywords
Related Articles
- EP ID EP489543
- DOI 10.5455/njppp.2018.8.1249313012018
- Views 84
- Downloads 0
Oxidized low-density lipoprotein as an inflammatory marker in the cardiovascular disease
Background: Cardiovascular disease (CVD) is the leading cause of death in the world. Inflammation is a systemic body response aimed to decrease the toxicity of harmful agents and repair damaged tissue. Significantly, pro...
Prevalence of migraine among medical students of a tertiary care teaching medical college and hospital in South India - A cross-sectional study
Background: Migraine is a common neurological disorder which affects the quality of life. In students, migraines cause absenteeism from classes and affect academic performance. They adversely affect the daily activities...
Antimicrobial lotion containing red Piper betle leaf (Piper crocatum Ruiz and Pav) ethanolic extract for topical application
Background: Empirically red Piper betle leaf (Piper crocatum Ruiz and Pav) is used as a natural antiseptic, and it is proved that the ethanol extract of red P. betle leaf ethanol extract provides antimicrobial activity a...
HSV-induced hepatitis in pregnancy - A rare case report
Hepatitis is mostly occurred by alcohol, drugs, or virus. Herpes simplex virus (HSV) hepatitis is rare and accounts for only 1% of all acute liver failures, but it is a fatal complication. Pregnant women are more vulnera...
Maternal heart rate variability during different trimesters of pregnancy
Background: Under normal circumstances, change in heart rate variability (HRV) in pregnancy projecting alterations within the regulation of the autonomic nervous system (ANS). Many previous works have shown...