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42 votes

Why does one person have lots of stamina and another doesn't?

Your answer lies in your own question: I'm a bit of a couch potato with a sedentary job, who normally gets out of breath walking up a few flights of stairs. Recently I saw an article on TV about an ...
JohnP's user avatar
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37 votes

Why does one person have lots of stamina and another doesn't?

If you are really interested in the biology behind fitness then I'd suggest reading Dr. Jack Daniel's "Daniel's Running Formula". I'll paraphrase a few of the points you would read there. The goal ...
nurdyguy's user avatar
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16 votes

Why does one person have lots of stamina and another doesn't?

Cardiovascular endurance and general conditioning. Simply put, the body will adapt to whatever your regular activities are. The fuel that you provide your body with also plays a part, but your ...
JustSnilloc's user avatar
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12 votes

Why does one person have lots of stamina and another doesn't?

I'm curious to know what makes him (and the walkers I saw) "fit" - where does his stamina comes from? He was stick thin like me, so I guess muscles don't play a huge role in it. I can only assume it's ...
Chelonian's user avatar
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8 votes

Max HR not reached

The maximum heart rate formula is just a predictive model. It aims to give an approximation of the average maximum heart rate for people by age, and it certainly isn't guaranteed to be accurate for ...
David Scarlett's user avatar
5 votes

Max heart rate: is it bad to train in Zone 5 for 30 mins?

There is a simple answer that lies in both your question and in the chart you provide. Your question says, β€œβ€¦is it bad to train...”. Training implies you are trying to improve. Zone 5, is not ...
Brian's user avatar
  • 51
4 votes
Accepted

Will exercising decrease the heart lifespan?

You don't die because you run out of heartbeats. You run out of heartbeats because you die. Since death is certain, we have a limited number of heartbeats. But pay attention to the chain of ...
Alec's user avatar
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4 votes
Accepted

Is low intensity cardio the only way to induce an increase in stroke volume?

The notion that low-intensity stead-state endurance work is required to elicit an increase in stroke volume is an outdated one, an assumption made from early observations that stroke volume appeared ...
POD's user avatar
  • 6,181
3 votes

Temporary drop in heart rate 2 minutes into a run, every run

I would suggest to setup hypotheses and test them systematically. 1 Do you shift from walking to running very abrupt? Perhaps you should consider it as a spike just before the drop rather than just a ...
Gyrfalcon's user avatar
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3 votes

Why does one person have lots of stamina and another doesn't?

I once saw a Nova documentary -- Marathon Challenge -- in which they trained a group of "average people" to run the Boston marathon, in 40 weeks. One of the characteristics which they ...
ChrisW's user avatar
  • 153
3 votes
Accepted

Is Whey Protein Bad For the Heart

No, whey protein is not bad for the heart. Two reasons for this: Protein consumption alone, in the absence of significant (overload) exertion of a muscle, does not cause a muscle to grow. ...
David Scarlett's user avatar
2 votes

What is Limiting Factor in Running Fast?

There are several factors that restricts humans to run at very high speed over longer distance. Muscle fatigue, body's ability to consume oxygen and making use of the stored energy are a few. In ...
xCodeZone's user avatar
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2 votes
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HIIT vs steady state: long term health effects

I wouldnt take in account the last longitudinal study by default, due to study design. On top of that HIIT is just a tag. Every dynamic exercise with a high enough intesity will provoke hypetrophy of ...
Liv's user avatar
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2 votes

Max heart rate: is it bad to train in Zone 5 for 30 mins?

I'm basing a lot of this on my own personal experience so, by all means, take it as anecdotal if you'd like. I started exercising the week of my 34th birthday (about 8 months ago) after having ...
Frank's user avatar
  • 1,297
2 votes

Why does one person have lots of stamina and another doesn't?

Depending on how tired you feel walking up a few flights of stairs, it could also be a medical issue. I recently had a friend who had extremely low hemoglobin levels in their blood, but didn't know ...
Milwrdfan's user avatar
  • 129
2 votes

What lifting does science advise for a middle-aged man with a family history of heart disease?

You say family history of heart disease, what is your history? Just because there is family history doesn't mean you have it. I would definitely recommend a doctor's exam first, and discuss your ...
JohnP's user avatar
  • 23k
2 votes

Why does one person have lots of stamina and another doesn't?

There are lots factors that come into play - blood pressure and cholesterol will impact how well oxygen and glucose get to the muscles, diet will change the way your body metabolises (how "accessible" ...
Chronocidal's user avatar
2 votes
Accepted

aerobic exercise in hot weather

The article aptly named Exercise in the heat: challenges and opportunities (Journal of Sports Sciences, 2004, 22, 917–927) has the following to say in the abstract (bolded mine): Exercise in the heat ...
Philip Klöcking's user avatar
2 votes

aerobic exercise in hot weather

Exercising in the heat may present certain challenges and risks to the body, but that doesn't necessarily mean it's inherently harmful. When you exercise, your body generates heat, and one of the main ...
Fangyy's user avatar
  • 29
1 vote

aerobic exercise in hot weather

Heat [loads your heart] - it requires your heart to pump extra blood to your skin to regulate body temperature. No it does not. The small increase in heart rate that comes with an increase in body ...
David Scarlett's user avatar
1 vote

Using Google Fit - If I get my heart points (from cycling), should I care about getting my steps in?

10,000 steps is am artificial goal invented as a pun in Japanese. Getting the actual exercise is the important part, with the caveat, of course, that minutes of higher heart rate is also a slightly ...
Sean Duggan's user avatar
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1 vote
Accepted

Using Google Fit - If I get my heart points (from cycling), should I care about getting my steps in?

For health benefits, you can ignore the step count. The CDC, American Heart Association, and Mayo Clinic simply recommend adults get a minimum of 150 minutes of moderate-intensity cardio per week (or ...
DeeV's user avatar
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1 vote
Accepted

Karvonen's formula gives higher target heart rates for deconditioned individuals. How can it make any sense from a health perspective?

It's all made up and arbitrary. Karvonen's heart rate zones are just five evenly distributed ranges from one's minimum to maximum heart rate. So Zone 1 is 0-20% of the way from minimum HR to maximum, ...
David Scarlett's user avatar
1 vote

Running, Riding a bike and hard leg workout (each activity being done once time a week): is it sufficient to enhance my cardio?

Disclaimer: Not a medical professional of any type. With any medical issue questions please refer to a doctor or cardiologist. Yes, these breakdowns of cardio activity would ultimately increase your ...
Seplo's user avatar
  • 696
1 vote

Why does one person have lots of stamina and another doesn't?

I think that it has been properly answered your question regarding the physical issues that lead to having no stamina. But I will say that even if you compare yourself to another "couch potato" you ...
umbium's user avatar
  • 11
1 vote

Why does one person have lots of stamina and another doesn't?

The other answers give you a lot of technical details (extremely interesting BTW). I can give you a data point on perceived fitness. I commute to the office everyday. This is 30 km per day in a "wavy"...
WoJ's user avatar
  • 173
1 vote

Training in HR Zone 5

I would say : Listen to your body and track your progression rather than blindly following prescription such as "don't train too much in zone 5" First, you may not actually be in your zone 5. Your ...
FenryrMKIII's user avatar
  • 1,210
1 vote

What is Limiting Factor in Running Fast?

If you use a calculator like McMillan.com then you'll see what you should be able to do - equivalent efforts - for different distances like going from 400m in 60 seconds to 1600m in 4:40. I think ...
Jason's user avatar
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