“Venice marathon”: participation of female Master Athletes shows a constant increase from 2003 to 2019

The marathon is the most classic Olympic running event. In several cities worldwide it has become very popular with participation increasing during the last 20 years, particularly by Master Athletes. There are evidences that long-distance running could provide considerable health benefits for older runners, specifically risk reduction of cardiovascular diseases, cancer, diabetes, depression, and falls. Several studies have focused on the distribution of participants and their performance on famous marathons such as those of Berlin, Boston and New York. In this preliminary study we have analyzed data from several editions of the Venice marathon, a famous Italian race that attracts people from every corner of the world. The Venice marathon is listed in Abbott World Marathon Majors Wanda Age Group World Ranking and is Bronze Label certificated by IAAF, and Gold Label by FIDAL. The marathon starts outside Venice near Stra, then runs along the Brenta Riviera to Venice where the runners cross the canals over floating bridges set up for the race. For this study we analyzed data of the Venice marathon describing gender distribution in 17 editions (2003-2019), but groups of age-categories and their nationality only in 13 editions from 2007 to 2019. The analysis shows a steady increase in female participation, from 2003 to 2019.

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P4426Prolonged troponin t elevation in male and female master athletes after long-distance running

European Heart Journal ◽

10.1093/eurheartj/ehz745.0828 ◽

2019 ◽

Vol 40 (Supplement_1) ◽

Author(s):

S A Eliasson ◽

P Sarajlic ◽

P Wandell ◽

H Wallen ◽

M Back ◽

...

Keyword(s):

Myocardial Infarction ◽

Endurance Exercise ◽

Troponin T ◽

Distance Running ◽

Master Athletes ◽

Long Distance ◽

Male And Female ◽

Long Distance Running ◽

Diagnostic Threshold ◽

Cross Country

Abstract Background Troponin levels may be elevated after long-distance running, probably due to increased membrane permeability of cardiomyocytes. It is believed that elevated troponin post exercise, in contrast to acute coronary syndromes, normalize within 24 (−48) hours. This phenomenon has been mainly studied in young and elite athletes. However, participation in endurance exercise is increasingly popular among elderly and recreational sportsmen. Purpose To assess troponin levels in master athletes before and up to 7 days after long-distance running. Method We studied 97 participants (56 males and 41 females, matched for age) in the world's largest cross-country race (30 km, Lidingöloppet). They were ≥45 years (53±5 years). Baseline evaluation included a physical exam, blood pressure, BMI, NT-proBNP and an ECG. Blood tests were taken at baseline, immediately after as well as 1d, 4d and 7d after the race, including high sensitive troponin T (TnT), creatinine and high sensitive CRP. Elevated TnT was defined as ≥15 ng/l. Results After the race TnT had increased from 5±3 ng/l at baseline to 46±32 ng/l (range 11–180; p<0.0001). TnT was still significantly elevated at day 1 (16±16ng/l, range 4–106; p<0.0001) and day 4 (8±8 ng/l, range 4–63; p<0.01) with a borderline increase at day 7 (6±3; range 4–22; p=0.062). Both men and women showed a significant TnT increases at day 1 and day 4. Elevated TnT above the diagnostic threshold for myocardial infarction was observed in 96% (post race), 34% (day 1), 9% (day 4) and 3% (day 7). Males had generally higher TnT levels. At day 1, elevated TnT levels were present in 39% of males and 17% of females while all subjects with elevated TnT at day 4 and day 7 were male. Conclusion TnT is elevated in the vast majority of male and female master athletes after participation in a 30 km cross country race. To our knowledge, this is the first report showing that TnT levels can be still significantly elevated four days after endurance running. Prolonged TnT values above the diagnostic threshold for myocardial infarction were predominantly seen in males. Our findings are relevant to the clinical management of patients with increased troponin values after endurance exercise. Acknowledgement/Funding Hjärt och lungfonden (Swedish heart- and lung fund). Governmental grants.

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Neuromuscular Factors Associated with Decline in Long-Distance Running Performance in Master Athletes

Sports Medicine ◽

10.1007/s40279-012-0006-9 ◽

2012 ◽

Vol 43 (1) ◽

pp. 51-63 ◽

Cited By ~ 17

Author(s):

Jeanick Brisswalter ◽

Kazunori Nosaka

Keyword(s):

Distance Running ◽

Master Athletes ◽

Long Distance ◽

Running Performance ◽

Factors Associated ◽

Long Distance Running ◽

Distance Running Performance

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Popliteal entrapment syndrome and age

VASA ◽

10.1024/0301-1526/a000201 ◽

2012 ◽

Vol 41 (4) ◽

pp. 262-268 ◽

Cited By ~ 3

Author(s):

Schweizer ◽

Hügli ◽

Koella ◽

Jeanneret

Keyword(s):

Risk Factors ◽

Leg Pain ◽

Walking Distance ◽

Therapeutic Approaches ◽

Long Distance ◽

Entrapment Syndrome ◽

Long Distance Running ◽

Popliteal Entrapment ◽

Popliteal Entrapment Syndrome ◽

Atherosclerotic Risk Factors

On the occasion of diagnosing a popliteal entrapment syndrome in a 59-year old man with no cardiovascular risk factors, who developed acute ischemic leg pain during long distance running, we give an overview on this entity with emphasis on patientsage. The different types of the popliteal artery compression syndrome are summarized. The diagnostic and therapeutic approaches are discussed. The most important clinical sign of a popliteal entrapment syndrome is the lack of atherosclerotic risk factors in patients with limited walking distance. Not only in young athletes but also in patients more than 50 years old the popliteal entrapment syndrome has to be taken into account.

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Self-perceived oral health among three subgroups of Asian-Americans in New York City: a preliminary study

Community Dentistry And Oral Epidemiology ◽

10.1034/j.1600-0528.2001.290204.x ◽

2001 ◽

Vol 29 (2) ◽

pp. 99-106 ◽

Cited By ~ 21

Author(s):

Gustavo D. Cruz ◽

Diana L. Galvis ◽

Mimi Kim ◽

Racquel Z. Le-Geros ◽

Su-Yan L. Barrow ◽

...

Keyword(s):

New York ◽

New York City ◽

Oral Health ◽

Asian Americans ◽

York City ◽

Preliminary Study

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The Engineering Details of the New York-Chicago Long Distance Telephone Line

Scientific American ◽

10.1038/scientificamerican02251893-14303asupp ◽

1893 ◽

Vol 35 (895supp) ◽

pp. 14303-14303

Author(s):

Jos. Wetzler

Keyword(s):

New York ◽

Telephone Line ◽

Long Distance

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Spatiotemporal tracing of pandemic spread from infection data

Scientific Reports ◽

10.1038/s41598-021-97207-5 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Satyaki Roy ◽

Preetom Biswas ◽

Preetam Ghosh

Keyword(s):

New York ◽

Network Inference ◽

Spatial Interaction ◽

Time Windows ◽

New York State ◽

Mitigation Measures ◽

Contact Tracing ◽

Long Distance ◽

Spatiotemporal Models ◽

Spread Of Infection

AbstractCOVID-19, a global pandemic caused by the Severe Acute Respiratory Syndrome Coronavirus 2 virus, has claimed millions of lives worldwide. Amid soaring contagion due to newer strains of the virus, it is imperative to design dynamic, spatiotemporal models to contain the spread of infection during future outbreaks of the same or variants of the virus. The reliance on existing prediction and contact tracing approaches on prior knowledge of inter- or intra-zone mobility renders them impracticable. We present a spatiotemporal approach that employs a network inference approach with sliding time windows solely on the date and number of daily infection numbers of zones within a geographical region to generate temporal networks capturing the influence of each zone on another. It helps analyze the spatial interaction among the hotspot or spreader zones and highly affected zones based on the flow of network contagion traffic. We apply the proposed approach to the daily infection counts of New York State as well as the states of USA to show that it effectively measures the phase shifts in the pandemic timeline. It identifies the spreaders and affected zones at different time points and helps infer the trajectory of the pandemic spread across the country. A small set of zones periodically exhibit a very high outflow of contagion traffic over time, suggesting that they act as the key spreaders of infection. Moreover, the strong influence between the majority of non-neighbor regions suggests that the overall spread of infection is a result of the unavoidable long-distance trips by a large number of people as opposed to the shorter trips at a county level, thereby informing future mitigation measures and public policies.

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In-Line Analysis of Diffusion Processes in Micro Channels by Long Distance Raman Photometric Measurement Technology—A Proof of Concept Study

Micromachines ◽

10.3390/mi12020116 ◽

2021 ◽

Vol 12 (2) ◽

pp. 116

Author(s):

Julian Deuerling ◽

Shaun Keck ◽

Inasya Moelyadi ◽

Jens-Uwe Repke ◽

Matthias Rädle

Keyword(s):

Numerical Aperture ◽

Spot Size ◽

Measuring System ◽

Optical Systems ◽

Measurement Technology ◽

Long Distance ◽

Measuring Point ◽

Acetone Concentration ◽

Micro Channels ◽

Set Up

This work presents a novel method for the non-invasive, in-line monitoring of mixing processes in microchannels using the Raman photometric technique. The measuring set-up distinguishes itself from other works in this field by utilizing recent state-of-the-art customized photon multiplier (CPM) detectors, bypassing the use of a spectrometer. This addresses the limiting factor of integration times by achieving measuring rates of 10 ms. The method was validated using the ternary system of toluene–water–acetone. The optical measuring system consists of two functional units: the coaxial Raman probe optimized for excitation at a laser wavelength of 532 nm and the photometric detector centered around the CPMs. The spot size of the focused laser is a defining factor of the spatial resolution of the set-up. The depth of focus is measured at approx. 85 µm with a spot size of approx. 45 µm, while still maintaining a relatively high numerical aperture of 0.42, the latter of which is also critical for coaxial detection of inelastically scattered photons. The working distance in this set-up is 20 mm. The microchannel is a T-junction mixer with a square cross section of 500 by 500 µm, a hydraulic diameter of 500 µm and 70 mm channel length. The extraction of acetone from toluene into water is tracked at an initial concentration of 25% as a function of flow rate and accordingly residence time. The investigated flow rates ranged from 0.1 mL/min to 0.006 mL/min. The residence times from the T-junction to the measuring point varies from 1.5 to 25 s. At 0.006 mL/min a constant acetone concentration of approx. 12.6% was measured, indicating that the mixing process reached the equilibrium of the system at approx. 12.5%. For prototype benchmarking, comparative measurements were carried out with a commercially available Raman spectrometer (RXN1, Kaiser Optical Systems, Ann Arbor, MI, USA). Count rates of the spectrophotometer surpassed those of the spectrometer by at least one order of magnitude at identical target concentrations and optical power output. The experimental data demonstrate the suitability and potential of the new measuring system to detect locally and time-resolved concentration profiles in moving fluids while avoiding external influence.

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