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October 10, 2021 By Irv Rubenstein

REAL News – October 2021

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REAL News March 2018

October 2021

Behavioral Compensations Alter Results of Exercise Training

It is expected that an exercise program will yield results commensurate with the frequency, duration, intensity, and type of exercise one does. So a University of KY study wanted to determine exactly why some folks don’t get the expected results. 

They had sedentary adults with BMI’s in the overweight to obese categories do 12-weeks of supervised exercise either 6 days/wk, 2 days/wk, or none at all. Various metabolic markers were measured before and after: changes in body fat and fat-free/lean muscle mass as measured by DEXA scans; resting basal metabolic rate (BMR), and fasting and post-meal levels of hunger and appetite-regulating hormones (ghrelin, leptin, insulin, and glucagon peptide-1 (GLP-1.)

Obviously, the 6 d/wk group logged more exercise time/wk (320.5 mins) and expended more calories (2753.5/cal/wk) than the 2 d/wk group (1490.7 cal/wk.) As expected the former lost more fat during the 12-weeks. 

Intriguingly, there were no group of differences in how many or what percent of calories were compensated for by consumption or reduced activity. “Exercise frequency, energy expended, duration, or intensity did not influence energy compensation.”

REAL-News - October-20211

Leptin, however, appeared to be the only “independent predictor for energy compensation” where greater decreases predicted less compensation. That the 6/wk exercisers lost more body fat demonstrated that it requires a ton of exercise – especially in the 70-100% intensity range – to effect weight loss in the face of behavioral compensations that we tend to make as we start a training program. It does so via leptin management.                                             

MSSE Apr. 2021

Exercise and Vaccines: A Symbiosis Made for Health

Exercise alone, if not taken to extremes, helps maintain a healthy immune system. In the days of covid, this is uplifting but not absolutely ensuring news. However, added to a vaccine, it appears those who are aerobically active get a better immunization response. It seems this booster effect is more robust for those over 60 than for younger adults, perhaps because the latter already have stronger immune systems. 

Even a single, acute bout of arm exercise immediately prior to a vaccine may enhance the immune response to a vaccine that isn’t even that effective. (Oy, what scientists won’t do to get published, right?)

REAL-News - October-20212

“Most of the current published literature suggests that exposure to either acute or chronic exercise significantly augments the immune response to vaccination,” according to the authors of a study in the journal Brain, Behavior, and Immunity (July 2014.)

Furthermore, it is well-known that exercise provides an analgesic effect against painful stimuli – like a needle – and reduces the normal reactions some have such as tenderness, swelling, reduced appetite, fever, and fatigue. The young females did 15 minutes of arm exercises in one study and either arm- or leg-exercises in another study before receiving an HPV shot and reported favorable symptoms over the course of 7 days.          

Technogym Newsroom Oct. 2021

Tid Bits

There are morning exercisers and night exercisers. For overweight men at risk for diabetes it appears early-evening may be best. A study in Diabetologia had the men consume a high-fat diet for 11 days. Some exercised in the morning, some in the evening, some not at all. All exercise routines boosted aerobic fitness but only evening exercise improved nocturnal blood sugar control.                                                  IDEA Fitness Journal Sept-Oct. 2021

 

As much as you can’t wait to frequent restaurants after 18 months of covid-dodging, you might consider a recent article in the Journal of the Academy of Nutrition and Dietetics. It found that those who eat 2 or more meals per day from restaurants “increased their risk of early mortality by 49%.” Maybe it’s the way food is processed or prepared to make it satiating and scintillating. More fats, sugars, and salt, and maybe more additives (see below) are typical of foods prepared outside the home. Either way, you’d be safer preparing more meals at home…or maybe not?                  IDEA Fitness Journal Sept-Oct. 2021

 

Fibromyalgia (FM) a chronic pain disease that causes fatigue, sleep disorders, mood changes and, of course, pain. Some exciting research suggests dietary changes may improve the symptoms of FM. Researchers have noted that some foods trigger pain more than others; eliminating such ‘excitotoxins” as glutamate (i.e. MSG) and aspartame (artificial sweetener) might help those with FM live less encumbered lives. Other no-no’s are many processed foods, especially those high in natural glutamate, like soy sauce, fish sauces, even parmesan cheese. Gelatin, a substance in many over-the-counter medicines, might be harder to avoid but perhaps worthy of making the effort by breaking capsules into apple sauce and taking the medications that way.                                                  Environmental Nutrition, Nov. 2021

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Filed Under: Real News Tagged With: caloric compensation, Exercise, immunity, vaccines, weight management

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