Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Objective: To study whether the two methods of energy calculation affects the value of relative energy contribution in men's T54 wheelchair racing events.
Methods: Ten men's T54 wheelchair racers (age (22.9±5.2) yrs、sitting height (90.9±3.2) cm、body mass (59.3±8.3) kg) participate in 1 incremental test and 4 time trials (400 m、800 m、1 500 m、5 000 m). A portable gas analyzer, polar heart rate belt and a blood lactate analyzer were used to measure VO at every breath, HR and blood lactate changes. The energetic contribution was measured with phosphocreatine-lactate-oxygen(PCr-La-O) and maximal accumulated oxygen deficit(MAOD) methods.
Results: The anaerobic and total energy portions from MAOD were lower than those from PCr-La-O ( especially in 400 m: W (50.8 ±12.7) KJ vs (65.2±13.5) KJ、W (31.0±9.0) KJ vs (45.4±11.4) KJ, P＜0.05), resulting in W% calculated by MAOD was generally higher than PCr-La-O method (especially in 400 m : W% 39.0% ±1.2% vs 30.4%±8.4 %,P＜0.05).
Conclusion: The study proves that the two-calculation method causes W% difference. MAOD method does lead to an overestimate of W%. Recommend to use the same calculation method for diagnosis and monitoring in the longitudinal study of long-term scientific research (such as the 4-year Olympic Games),to avoiding the difference in results caused by different calculation methods, which will further influence the development of coaches' training plans and training implementation effect.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.12047/j.cjap.5895.2020.006 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Pulmonary Function Test Reference Equations May Affect Classification of Restrictive Lung Disease Severity in Systemic Sclerosis.
Arthritis Care Res (Hoboken)
September 2025
Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
Background: Interstitial lung disease (ILD) is a significant cause of morbidity and mortality in systemic sclerosis (SSc), particularly among Black patients. Pulmonary function tests (PFTs) are critical to screen for and monitor SSc-ILD. We examined whether race-specific and race-neutral PFT reference equations impact classification of restrictive lung disease (RLD) severity in Black and White patients with SSc.
View Article and Find Full Text PDFBuprenorphine Adherence Trajectories and Their Impact on Opioid Overdose and Healthcare Costs.
Drug Alcohol Rev
September 2025
The Prescription Drug Misuse Education and Research (PREMIER) Center, University of Houston, Houston, Texas, USA.
Introduction: Buprenorphine is effective for opioid use disorder (OUD), yet adherence remains suboptimal. This study aimed to identify adherence trajectories, explore their predictors, and assess their association with opioid overdose risk and healthcare costs.
Methods: A retrospective cohort study was conducted using the Merative MarketScan Commercial Database, which includes a nationally representative sample of individuals with private, employer-sponsored health insurance in the United States.
Age-Dependent Contributions of Rare and Common Genetic Variation in Atrial Fibrillation.
Circ Genom Precis Med
September 2025
Feinberg School of Medicine, Northwestern University, Chicago, IL (Z.C., P.G., A.G., G.W.).
Background: Genetic variation contributes to atrial fibrillation (AF), but its impact may vary with age. The Research Program contains whole-genome sequencing of data from 100 574 adult participants with linked electronic health records.
Methods: We assessed clinical, monogenic, and polygenic associations with AF in a cross-sectional analysis, stratified by age: <45 years (n=22 290), 45 to 60 years (n=26 805), and >60 years (n=51 659).
Relationships of Circulating Plasma Metabolites With the QT Interval in a Large Population Cohort.
Circ Genom Precis Med
September 2025
Clinical Pharmacology and Precision Medicine, William Harvey Research Institute, London, United Kingdom (W.J.Y., M.M.S., J.R., S.v.D., H.R.W., A.T., P.B.M.).
Background: There is a higher prevalence of heart rate corrected QT (QTc) prolongation in patients with diabetes and metabolic syndrome. QT interval genome-wide association studies have identified candidate genes for cardiac energy metabolism, and experimental studies suggest that polyunsaturated fatty acids have direct effects on ion channel function. Despite this, there has been limited study of metabolite concentration relationships with QT intervals.
View Article and Find Full Text PDFperspectives on surface photocatalysis: advances, challenges, and opportunities.
Nanoscale Horiz
September 2025
Department of Physics, University of Science and Technology of China, 230026 Hefei, Anhui, China.
Surface photocatalysis holds significant promise for converting solar energy into chemical fuels and addressing environmental challenges. While calculations provide critical insights into the thermodynamic and kinetic aspects of catalytic reactions, applying these methods to surface photocatalysis remains challenging. In this work, we discuss the key challenges that need to be addressed when using calculations to understand surface photocatalytic processes, the reasons behind these challenges, and the potential directions and opportunities for overcoming them in the future.
View Article and Find Full Text PDF