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Strong Legs Associated with Healthy Brains in Twin Study

well.blogs.nytimes.com

11–20 of 133 posts

Re: Strong Legs Associated with Healthy Brains in Twin Study

#11
post #5

Interesting, however i'd lean towards muscle mass in general having this effect rather than thighs in particular. Although being at the lower end of the body might be important in maintaining goid circulation.

The gluteus are the largest muscles.

I imagine this is a factor, even if the development of all the muscles have proportionally the same effect.

Re: Strong Legs Associated with Healthy Brains in Twin Study

#12
post #6

Just started to read the book "Brain Rules: 12 Principles for Surviving and Thriving at Work, Home, and School". It basically starts with this "For starters, we are not used to sitting at a desk for eight hours a day. From an evolutionary perspective, our brains developed while working out, walking as many as 12 miles a day. The brain still craves that experience, especially in sedentary populations like our own. Tha…

That'd be easy to check, since plenty school have a daily morning routine

now, school scores aren't comparable, but I guess researchers can figure out a metric for brain fitness.

Re: Strong Legs Associated with Healthy Brains in Twin Study

#13
post #6

Just started to read the book "Brain Rules: 12 Principles for Surviving and Thriving at Work, Home, and School". It basically starts with this "For starters, we are not used to sitting at a desk for eight hours a day. From an evolutionary perspective, our brains developed while working out, walking as many as 12 miles a day. The brain still craves that experience, especially in sedentary populations like our own. Tha…

> Exercisers outperform couch potatoes in long-term memory, reasoning, attention, and problem-solving tasks

I'm pretty sure the cause/effect is reversed here. It's more likely that people who are smart and have better focus/are less impulsive are more likely to take care of their health and exercise.

Re: Strong Legs Associated with Healthy Brains in Twin Study

#14
post #13
post #6

Just started to read the book "Brain Rules: 12 Principles for Surviving and Thriving at Work, Home, and School". It basically starts with this "For starters, we are not used to sitting at a desk for eight hours a day. From an evolutionary perspective, our brains developed while working out, walking as many as 12 miles a day. The brain still craves that experience, especially in sedentary populations like our own. Tha…

> Exercisers outperform couch potatoes in long-term memory, reasoning, attention, and problem-solving tasks I'm pretty sure the cause/effect is reversed here. It's more likely that people who are smart and have better focus/are less impulsive are more likely to take care of their health and exercise.

From my experience, there is no correllation between someone being smart and doing exercise.

Re: Strong Legs Associated with Healthy Brains in Twin Study

#15
post #5

Interesting, however i'd lean towards muscle mass in general having this effect rather than thighs in particular. Although being at the lower end of the body might be important in maintaining goid circulation.

Here's the thing, you don't/can't "isolate" development of a muscle, especially a big one

Working out has systemic (anabolic) effects

Re: Strong Legs Associated with Healthy Brains in Twin Study

#16
This is an appealing result. I like exercise and I want to think it's doing good things for my brain, but as with all studies on the mind-body link, it's going to take a great deal more evidence to make it convincing. It's especially premature to conclude anything about exercising the legs in particular.

Re: Strong Legs Associated with Healthy Brains in Twin Study

#17

I'd be interested to know more precisely whether the subjects were doing more aerobic or anaerobic exercises. My hunch, given my distant past life as an athlete, is that the correlation is with aerobic exercise and not anaerobic.

Why so? Surely, if the correlation is explicitly with leg power rather than endurance or general fitness, then anaerobic exercise (squats, deadlifts, lunges, leg-presses, as well as running/bike sprints etc) would be the a better driver for building that power rather than aerobic exercise?

Re: Strong Legs Associated with Healthy Brains in Twin Study

#19

I'd be interested to know more precisely whether the subjects were doing more aerobic or anaerobic exercises. My hunch, given my distant past life as an athlete, is that the correlation is with aerobic exercise and not anaerobic.

You can build aerobic power (at least to some extent) using anaerobic exercise like sprints / intervals. I would assume a combination of aerobic & anaerobic exercise is probably the healthiest because that way all energy pathways and muscle fibres get activated.

I always think it's crazy to expect humans to function properly without exercise. We see the problems in all other animals when they become sedentary below the level that they would historically be expected to do. Yet somehow some people seem to think we are an exception to this rule.

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