jogging and motivation thread

[agent_719]

Are you guys still running in this poor air quality ?

 

[sales69]

Are you guys still running in this poor air quality ?

Ya later go suntan run. My type of weather.

 

[Ender]

Are you guys still running in this poor air quality ?

Base on smell, not too bad. By evening, is the smell doesn't get worst, it is good to go for me.

 

[winningeleven]

Are you guys still running in this poor air quality ?

Yes will run . I Based on the smell rather than the reading

 

[Ender]

I am not into virtual race or challenge, but this one is interesting, coz the medals are LOTR theme.

https://lp.theconqueror.events/lc/lotr/multi/preinfo/landing

 

[ctstalin]

Are you guys still running in this poor air quality ?

No issue, just run

 

[WussRedXLi]

Are you guys still running in this poor air quality ?

Can use these 3 stations, i think they are the normal laser particle counter sensor type. Pretty ok accuracy. I think they update every 15 mins or so. This really reflects the current situation.
But note that AQI 150 index figure is equivalent to our PSI 100 index value.
AQI 175 is equivalent to our PSI 145
AQI 200 is equivalent to our PSI 200
AQI 300 is PSI 300


Solution : Go to gym (ActiveSG?) and run on the treadmill during haze spikes. Most modern / newer buildings usually has ok filters in the HVAC AHUs to noticeably lower the PM2.5 levels. Not all though, this one has to be checked and confirmed with a portable laser particle counter (eg from taobao, good enough).

One thing to consider is that if you are doing a workout, LT1 might be as much as 8x volume of air vs resting, and LT2 12 times vol vs resting. Then you take into account the duration also.
So say the concentration is 100 ug/m3 of PM2.5 at rest for 1hr, it becomes as much as 800 to 1200 ug/m3 exposure in 1 hour.

I mean, it also depends on your sensitivity and susceptibility, for any underlying medical issues. If so, it also depends on its severity and if it is controlled or not. Then you "set your own level"

Some people are just mildly asthmatic, some much more so and need immediate neubuliser application. Happened before in 2013 and 2015 reports here, a small number even needed to get to A&E during the high spikes.

Some are just sore throat or headache.

Some folks are cardiac issues, ie angioplasty or open heart bypass due to atheroscleorisis.
You dont want things to be triggered again due to the inflammation



AQICN See the PM2.5 value.
https://aqicn.org/station/singapore-longvale/

 

[WussRedXLi]

Yes, it is highly risky to go running outdoors when the Air Quality Index (AQI) is 170, especially since you have a history of angioplasty. [1, 2]
While a score of 170 might seem "just" slightly elevated compared to extreme pollution events, an AQI between 151 and 200 falls into the "Unhealthy" category for the general public, and it is explicitly dangerous for individuals with pre-existing cardiovascular conditions. [1, 2]

Why an AQI of 170 is Dangerous for Your Heart
When you run, your breathing rate increases significantly, causing you to inhale a large volume of air deep into your lungs. At an AQI of 170, the air contains high concentrations of fine particulate matter (\(\text{PM}_{2.5}\)). For someone who has undergone angioplasty, these microscopic particles pose direct risks: [1, 2]

• • Vascular Inflammation & Constriction: \(\text{PM}_{2.5}\) particles can pass directly through your lungs into your bloodstream, triggering systemic oxidative stress. This causes blood vessels to narrow (vasoconstrict), which instantly forces your heart to work harder. [1, 2, 3, 4]
  • Plaque Instability: The acute inflammatory response caused by inhaling heavily polluted air can destabilize existing fatty plaques in your coronary arteries. If a plaque ruptures, it can lead to a sudden blood clot or a heart attack. [1, 2]
  • Increased Clotting Risk: Air pollution increases blood viscosity (thickness) and activates platelets, making the blood more prone to clotting—a critical concern when you have treated coronary artery disease. [1, 2]

 

[WussRedXLi]

Yes, it is highly risky and strongly advised against. Running for 60 minutes at LT1 pace in an AQI of 170 poses a significant health hazard, particularly because of your history of angioplasty. [1, 2]
An AQI of 170 falls squarely into the "Unhealthy" category (151–200). In this range, official public health guidelines from organizations like the U.S. EPA recommend that the general public cut back on intense outdoor exertion, while sensitive groups—especially individuals with pre-existing heart disease—should avoid outdoor physical activity entirely. [1, 2, 3]

Why the Combination is Dangerous

• • Massive Pollutant Inhalation: Even though LT1 is a manageable, aerobic steady-state pace, running for a full hour vastly increases your minute ventilation rate (the volume of air you breathe). You will inhale roughly 10 to 20 times more air—and therefore far more toxic fine particulate matter (\(\text{PM}_{2.5}\))—than you would at rest. [1]
  • Acute Cardiovascular Stress: Fine particles bypass your lungs' natural defense systems and enter your bloodstream directly. Clinical studies show that short-term exposure to these particles during exercise triggers platelet activation (blood clotting risks), impaired blood vessel function (endothelial dysfunction), and systemic inflammation. [1, 2]
  • Elevated Cardiac Event Risk: For someone who has undergone an angioplasty, this pollution-induced stress can cause acute arterial constriction, spike your blood pressure, alter your heart rhythm, and significantly elevate the immediate risk of a heart attack, arrhythmia, or stent-related complications. [1]

 

[WussRedXLi]

Add on : Best to keep things under tabs, If you have any chronic medical issues that deals with systemic inflammation types, from cardiovascular and atherosclerosis to autoimmune rheumatiod arthritis to asthma/COPD which are also inflammation based

Yes, running a marathon at an AQI of 180 can significantly increase your risk of triggering a rheumatoid arthritis (RA) flare and other systemic complications. An AQI of 180 falls into the "Unhealthy" category, meaning the air contains high concentrations of fine particulate matter (PM2.5).
Recent medical studies published in the Annals of the Rheumatic Diseases provide a direct link between PM2.5 exposure and spikes in RA disease activity, showing that inhaling these microscopic particles elevates systemic inflammation and triggers painful joint flares. [1, 2]

 

[shredded]

now blocked I think

should let nsmen train on it though, oh well