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posted by chromas on Wednesday March 27 2019, @09:50AM   Printer-friendly
from the video-games-are-not-exercise dept.

How Your Office job is Affecting Your Metabolism:

The idea that long bouts of uninterrupted sitting might be bad for your health has gotten lots of attention over the past decade. The reason may seem obvious: If you’re sitting all the time, you’re not exercising. But emerging evidence suggests that there’s a deeper connection between sedentary time and lack of exercise, with the combination of both worse than either one on its own.

In a new study published in the Journal of Applied Physiology, researchers at the University of Texas show that four days of prolonged sitting induces a state that they call “exercise resistance.”

They had 10 volunteers complete two four-day protocols that involved sitting around for more than 13 hours a day while taking fewer than 4,000 steps. At the end of one of the four-day periods, they did a vigorous one-hour treadmill workout.

Normally a one-hour workout would produce a set of metabolic benefits that persist for at least a day. Your insulin sensitivity and glucose tolerance, both of which are associated with heart health, improve immediately. And your postprandial lipemia – the rise in triglycerides circulating in your blood after a fatty meal, which may contribute to blocked arteries – will be attenuated.

But when the researchers fed their volunteers a high-fat, high-sugar slurry of melted ice cream and half-and-half creamer the next day, their blood sugar, insulin and triglyceride levels shot up by the same amount regardless of whether they’d exercised the night before. After all the sitting, their workout no longer packed its usual health punch.

If exercise after extended sitting didn't help, why bother exercising?


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  • (Score: 2) by bobthecimmerian on Wednesday March 27 2019, @04:23PM (2 children)

    by bobthecimmerian (6834) on Wednesday March 27 2019, @04:23PM (#820732)

    200 pound OHP in one year? Maybe you know something I don't. I get to 60-65 pounds in each hand in dumbbell OHP and all progress stops dead. I'm trying again with a 5x5 program because it's the only game in town (that is, the modest progress I get from it beats the less modest or zero progress I get from everything else), but I'm not optimistic.

    On the other hand 400 pound leg press and 240 on leg extension isn't that ambitious, but to be fair that depends on the machine/sled you're using. I managed those before without much effort. But again, maybe the machines I used were different.

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  • (Score: 0) by Anonymous Coward on Wednesday March 27 2019, @06:56PM (1 child)

    by Anonymous Coward on Wednesday March 27 2019, @06:56PM (#820869)

    Free weight vs. Bar is a huge difference with pressing, but you're probably hitting a wall from not training your core enough. Having a strong core and legs to keep you stable will help a lot with pressing. Hang cleans will help build that whole chain of muscles nicely. You also might want to try some isolation-type weights focusing on the other muscles in the shoulders and upper back, because it's common for them to be underdeveloped when sticking with basic weight routines.

    • (Score: 2) by bobthecimmerian on Wednesday March 27 2019, @07:19PM

      by bobthecimmerian (6834) on Wednesday March 27 2019, @07:19PM (#820887)

      My arms are two different lengths due to a birth defect, so deadlifts, any kind of clean, and basically anything with a barbell except squats causes problems with my back or costochondritis (inflammation of the cartilege between ribs, which is not the same as muscle soreness) or both. I'll keep the rest of what you said in mind, though. Thanks.