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Someone who can lift 440lbs but who sweats when they eat isn't fit, either. >What sort of adaptations? As far as I'm aware, adaptations are the result of signi

Someone who can lift 440lbs but who sweats when they eat isn't fit, either. >What sort of adaptations? As far as I'm aware, adaptations are the result of significant stress. What are the stressors of a "long easy session"? The adaptations come from the cardiac system. Basically, the body can use more oxygen more efficiently. >Low-intensity, long endurance cardio is adversarial to increasing strength Increased strength is adversarial to improved cardio efficiency.

mutatio 5y ago
> The adaptations come from the cardiac system. Basically, the body can use more oxygen more efficiently. I'm quite sure HIIT is near optimal for improving VO2max - and if you look at it through the less of time vs. benefit then it's unrivalled in terms of cardiovascular health.
- multjoy 5y ago
  Arguably it's the only way! A rising aerobic tide lifts all boats...
zfnmxt 5y ago
> Increased strength is adversarial to improved cardio efficiency. This is absolutely untrue. If you take a runner who doesn't squat and get them to squat (and get stronger) they will become a better runner. By becoming stronger, each stride becomes more submaximal. Of course how strong they can become will be modulated by how much weight they can gain--in the case of a runner, that will probably be a very modest amount before the increase in weight begins to negatively impact their performance. But even with extremely minimal weight gain, they can become significantly stronger from an untrained state in a way that only positively impacts their running performance. > The adaptations come from the cardiac system. Basically, the body can use more oxygen more efficiently. You misunderstood my question. If the session is easy, what is the stress which sufficiently disrupts homeostasis to lead to an adaptation? Easy things do not result in adaptations. > Someone who can lift 440lbs but who sweats when they eat isn't fit, either. Sure, they should do their cardio.
- multjoy 5y ago
  >If the session is easy, what is the stress which sufficiently disrupts homeostasis to lead to an adaptation? Easy things do not result in adaptations An "easy" run is a stressor on the cardiac system, because you don't spend all day with an elevated HR and commensurate lung work.
  - zfnmxt 5y ago
    Everything is a stressor. Doing nothing is a (negative) stressor. The question is is it a sufficient stress. And it is not. Squatting 120 kg x 5 every day is a stressor, and provided you do no other strength training, it will feel hard. But you'll never get stronger than you already are.
    - multjoy 5y ago
      >Everything is a stressor. Doing nothing is a (negative) stressor. The question is is it a sufficient stress. And it is not. You are wrong.

mutatio 5y ago

> The adaptations come from the cardiac system. Basically, the body can use more oxygen more efficiently. I'm quite sure HIIT is near optimal for improving VO2max - and if you look at it through the less of time vs. benefit then it's unrivalled in terms of cardiovascular health.

multjoy 5y ago
Arguably it's the only way! A rising aerobic tide lifts all boats...

zfnmxt 5y ago

> Increased strength is adversarial to improved cardio efficiency. This is absolutely untrue. If you take a runner who doesn't squat and get them to squat (and get stronger) they will become a better runner. By becoming stronger, each stride becomes more submaximal. Of course how strong they can become will be modulated by how much weight they can gain--in the case of a runner, that will probably be a very modest amount before the increase in weight begins to negatively impact their performance. But even with extremely minimal weight gain, they can become significantly stronger from an untrained state in a way that only positively impacts their running performance. > The adaptations come from the cardiac system. Basically, the body can use more oxygen more efficiently. You misunderstood my question. If the session is easy, what is the stress which sufficiently disrupts homeostasis to lead to an adaptation? Easy things do not result in adaptations. > Someone who can lift 440lbs but who sweats when they eat isn't fit, either. Sure, they should do their cardio.

multjoy 5y ago
>If the session is easy, what is the stress which sufficiently disrupts homeostasis to lead to an adaptation? Easy things do not result in adaptations An "easy" run is a stressor on the cardiac system, because you don't spend all day with an elevated HR and commensurate lung work.
- zfnmxt 5y ago
  Everything is a stressor. Doing nothing is a (negative) stressor. The question is is it a sufficient stress. And it is not. Squatting 120 kg x 5 every day is a stressor, and provided you do no other strength training, it will feel hard. But you'll never get stronger than you already are.
  - multjoy 5y ago
    >Everything is a stressor. Doing nothing is a (negative) stressor. The question is is it a sufficient stress. And it is not. You are wrong.