3 ms·

And the answer (from the article and what I've read elsewhere): no, not as far as any study has ever been able to determine.

Retric 17y ago
there is only one agreed-on fact about the possible risk of suddenly stopping intense exercise. When you exercise hard, the blood vessels in your legs are expanded to send more blood to your legs and feet. And your heart is pumping fast. If you suddenly stop, your heart slows down, your blood is pooled in your legs and feet, and you can feel dizzy, even pass out.
- pbhjpbhj 17y ago
  Which is why you sit down or bend over, no? Marathon runners do a pretty intense workout .. I've never seen one of them do a warm-down at the end. Similarly a study a couple of years ago by the Australian military (someone Google that for me!) said that warm-ups didn't alter the rates of injury during physical activity.
  - Retric 17y ago
    Marathon runners don't do an intense workout. It's an endurance sport and peak output is nowhere near what a sprinter does.
    - gaius 17y ago
      Run many Marathons?
      - Retric 17y ago
        What is the average running speed of a man? Between 13-20 mph http://wiki.answers.com/Q/What_is_the_average_running_speed_of_a_man http://wiki.answers.com/Q/What_is_the_average_running_speed_... If you define running as 13+MPH then nobody in the history of the world has ever run a Marathon. Yet, some people can run at twice that pace for short distances. So when looking at Intensity as in the instantaneous output, Marathons don't really compare.
        gaius 17y ago
        All I'm saying is, you run 26 miles then sprint the last 0.1 and tell me it's not intense.
    - xiaoma 17y ago
      >Marathon runners don't do an intense workout. It's an endurance sport and peak output is nowhere near what a sprinter does. It's easy to say that from the couch. Odds are overwhelming that both you, and 99% of the people commenting on this site are incapable of running a mile in under 5 minutes or even a single lap around a 400m track in 75 seconds. Top marathon runners average a higher speed than that for over 2 hours. Winners occasionally have a sub 4 minute mile within the race.
      - Retric 17y ago
        A mile is still an endurance sport. There is a reason the world record for 200m is slower than twice 100m even though they both start from a dead stop and it takes several seconds to hit top speed. Edit: I dealt with limited lung capacity for a while, it can be vary obvious once you start needing a lot of oxygen really quickly. You can run fast from a dead stop, but distance and recovery time can become insane.
        xiaoma 17y ago
        Actually the 100m and 200m records are about the same speed. It's 9.58 for the 100m and 19.19 for the 200m. And before this August when Bolt shattered his previous 100m record, the 200m record was significantly faster than the 100m. But in any case, both miles and marathons are incredibly intense workouts. In fact, from a physiological standpoint, middle distances are more intense than sprints. Less than 400m isn't even enough to push someone to their lactate threshold. Short sprints are run on the fuel already in the muscles. Obviously, it still takes intense training (and the right genes) to sprint well, though.

Retric 17y ago

there is only one agreed-on fact about the possible risk of suddenly stopping intense exercise. When you exercise hard, the blood vessels in your legs are expanded to send more blood to your legs and feet. And your heart is pumping fast. If you suddenly stop, your heart slows down, your blood is pooled in your legs and feet, and you can feel dizzy, even pass out.

pbhjpbhj 17y ago
Which is why you sit down or bend over, no? Marathon runners do a pretty intense workout .. I've never seen one of them do a warm-down at the end. Similarly a study a couple of years ago by the Australian military (someone Google that for me!) said that warm-ups didn't alter the rates of injury during physical activity.
- Retric 17y ago
  Marathon runners don't do an intense workout. It's an endurance sport and peak output is nowhere near what a sprinter does.
  - gaius 17y ago
    Run many Marathons?
    - Retric 17y ago
      What is the average running speed of a man? Between 13-20 mph http://wiki.answers.com/Q/What_is_the_average_running_speed_of_a_man http://wiki.answers.com/Q/What_is_the_average_running_speed_... If you define running as 13+MPH then nobody in the history of the world has ever run a Marathon. Yet, some people can run at twice that pace for short distances. So when looking at Intensity as in the instantaneous output, Marathons don't really compare.
      - gaius 17y ago
        All I'm saying is, you run 26 miles then sprint the last 0.1 and tell me it's not intense.
  - xiaoma 17y ago
    >Marathon runners don't do an intense workout. It's an endurance sport and peak output is nowhere near what a sprinter does. It's easy to say that from the couch. Odds are overwhelming that both you, and 99% of the people commenting on this site are incapable of running a mile in under 5 minutes or even a single lap around a 400m track in 75 seconds. Top marathon runners average a higher speed than that for over 2 hours. Winners occasionally have a sub 4 minute mile within the race.
    - Retric 17y ago
      A mile is still an endurance sport. There is a reason the world record for 200m is slower than twice 100m even though they both start from a dead stop and it takes several seconds to hit top speed. Edit: I dealt with limited lung capacity for a while, it can be vary obvious once you start needing a lot of oxygen really quickly. You can run fast from a dead stop, but distance and recovery time can become insane.
      - xiaoma 17y ago
        Actually the 100m and 200m records are about the same speed. It's 9.58 for the 100m and 19.19 for the 200m. And before this August when Bolt shattered his previous 100m record, the 200m record was significantly faster than the 100m. But in any case, both miles and marathons are incredibly intense workouts. In fact, from a physiological standpoint, middle distances are more intense than sprints. Less than 400m isn't even enough to push someone to their lactate threshold. Short sprints are run on the fuel already in the muscles. Obviously, it still takes intense training (and the right genes) to sprint well, though.