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Age- and Sex-Differences in Cardiac Characteristics Determined by Echocardiography in Masters Athletes
ConclusionCardiac sex differences are present even among masters athletes. Lifelong exercise training does not appear to exasperate morphological difference to a point of cardiac risk or dysfunction in both male and female athletes.
Source: Frontiers in Physiology - January 18, 2021 Category: Physiology Source Type: research

Age-Dependence of Flow Homeostasis in the Left Ventricle
Conclusions: In average, blood spends 1 to 3 beats inside the LV with very low shear stress rates. The apical region is the most prone to blood stasis, particularly in mid-aged adults. The washout of blood in the normal LV is age-dependent due to physiological changes in the degree of apical penetration of the filling waves. Introduction Cardioembolic stroke is a major source of mortality and disability worldwide and blood stasis one of its major determinants (Adams et al., 1986). Left ventricular (LV) function has evolved to maximize mechanical efficiency and ensure organ perfusion at a low cost of energy and fill...
Source: Frontiers in Physiology - April 25, 2019 Category: Physiology Source Type: research

Periodontal Disease Is Associated With Increased Risk of Hypertension: A Cross-Sectional Study
Conclusion: Periodontal disease is significantly and positively correlated with increased risk of hypertension in Chinese population, and exact mechanisms of this association should be explored in future. Introduction Periodontal disease is a complex polymicrobial inflammation, including gingivitis and periodontitis. According to the 2015 Global Burden of Disease (GBD) study, the prevalence of severe chronic periodontitis in 2015 has reached 616 million (Kassebaum et al., 2017). In China, the periodontal disease standardized DALYs rate has risen from 24.7 in 1990 to 25.7 in 2013 according to the data from 2013 GBD ...
Source: Frontiers in Physiology - April 24, 2019 Category: Physiology Source Type: research

Elite Swimmers ’ Training Patterns in the 25 Weeks Prior to Their Season’s Best Performanc Insights Into Periodization From a 20-Years Cohort
Conclusion: Progressive increases in training load, macrocycles lasting about 14–15 weeks, and substantial volume of training at intensities ≤4 mmol⋅L-1 and>6 mmol⋅L-1, were associated with peak performance in elite swimmers. Introduction To achieve the fastest competition performances, elite coaches periodise athletes’ training loads over multi-year and annual training programs (Turner, 2011; Mujika et al., 2018). Periodization is the purposeful sequencing of training units (long-, medium-, and short-term training cycles and sessions) designed to produce cumulated adaptations tha...
Source: Frontiers in Physiology - April 9, 2019 Category: Physiology Source Type: research

Elite Swimmers ’ Training Patterns in the 25 Weeks Prior to Their Season’s Best Performances: Insights Into Periodization From a 20-Years Cohort
Conclusion: Progressive increases in training load, macrocycles lasting about 14–15 weeks, and substantial volume of training at intensities ≤4 mmol⋅L-1 and>6 mmol⋅L-1, were associated with peak performance in elite swimmers. Introduction To achieve the fastest competition performances, elite coaches periodise athletes’ training loads over multi-year and annual training programs (Turner, 2011; Mujika et al., 2018). Periodization is the purposeful sequencing of training units (long-, medium-, and short-term training cycles and sessions) designed to produce cumulated adaptations tha...
Source: Frontiers in Physiology - April 9, 2019 Category: Physiology Source Type: research