Endurance training to improve metabolic profile, which is also good for the brain
In the post Metabolic syndrome and mental health http://agelessbrain.com/2010/04/metabolic-syndrome-and-mental-health/ a problem of mental health dependency on metabolic profile is outlined. Here is one of possible solutions.
It is well known that sedentary life style is one of major risk factors of developing heart disease and diabetes. To the contrary, physical activity has been shown in clinical studies to protect against them by improving, among other factors, insulin sensitivity, which in turn lowers blood glucose and lipid levels.
Out of known training types, endurance training is now considered the most efficient training for abdominal fat control. For instance, in a study conducted by the Division of Endocrinology and Diabetes, University Hospital, Zurich, Switzerland, patients were engaged in a regular exercise program over a period of 3 months involving endurance exercises such as biking, long-distance running, or hiking. Subjects were instructed to exercise at least 135 min per week.
During the 3-month training period, physical fitness as assessed by VO2max (maximal oxygen consumption) and resting heart rate, increased
significantly. Insulin sensitivity increased and blood glucose decreased, subsequently improving “good” cholesterol numbers and total
cholesterol readings. Weight loss was not really impressive, but importantly that it was accompanied by waist-to-hip circumference ratio increase indication
that body fat distribution became less harmful.
Sources:
-Diabetes Care. 22(4): 555-61, 1999
-Metabolism: Clinical & Experimental. 48(5):641-4, 1999
-Diabetes Care. 20(10):1603-11, 1997
-Exercise & Sport Sciences Reviews. 27:1-35, 1999
Message: This exercise routine is good to fight abdominal fat and metabolic syndrome
In the post Metabolic syndrome and mental health, the problem of mental health dependency on metabolic profile is outlined. Here is one of possible solutions.
It is well known that sedentary life style is one of major risk factors of developing heart disease and diabetes. To the contrary, physical activity has been shown in clinical studies to protect against them by improving, among other factors, insulin sensitivity, which in turn lowers blood glucose and lipid levels.
Out of known training types, endurance training is now considered the most efficient training for abdominal fat control. For instance, in a study conducted by the Division of Endocrinology and Diabetes, University Hospital, Zurich, Switzerland, patients were engaged in a regular exercise program over a period of 3 months involving endurance exercises such as biking, long-distance running, or hiking. Subjects were instructed to exercise at least 135 min per week.
During the 3-month training period, physical fitness as assessed by VO2max (maximal oxygen consumption) and resting heart rate, increased significantly. Insulin sensitivity increased and blood glucose decreased, subsequently improving “good” cholesterol numbers and total cholesterol readings. Weight loss was not really impressive, but importantly that it was accompanied by waist-to-hip circumference ratio increase indication that body fat distribution became less harmful.
Sources:
- Diabetes Care. 22(4): 555-61, 1999
- Metabolism: Clinical & Experimental. 48(5):641-4, 1999
- Diabetes Care. 20(10):1603-11, 1997
- Exercise & Sport Sciences Reviews. 27:1-35, 1999
Related:
The best exercise type to fight metabolic syndrome
Until recently, in order to improve cholesterol profiles of people with metabolic syndrome, doctors usually advised a moderate-intensity exercise such as walking. Now, we have new information indicating that though it’s good enough for weight loss and blood pressure, it may be not enough to improve your cholesterol profile.
Researchers at Norwegian University of Science and Technology in Trondheim studied how exercise type influenced people with metabolic syndrome and showed that those who was on a high-intensity interval training program had significantly improved HDL -cholesterol levels. Their exercise consisted of four sets of 4-minute high intensity bouts at 90 percent of maximal heart rate (220 minus age) each followed by a 3-min active rest. These people exercised three times a week for 16 weeks.
The control group exercised continuously for 40 minutes at 70 percent of their maximal heart rate three times per week for 16 weeks. In both groups, participants improved their blood pressure and lost weight but only the interval training group showed improved HDL levels. “When we retested the patients at the end of the 16-week study, of those who underwent the interval-training program, nearly half had trained themselves out of the metabolic syndrome, whereas just 37 percent of patients in the moderately trained group did so,” the principal researcher Dr Tjonna said. “While metabolic-syndrome patients could perform more intense exercise, clinicians are reluctant to prescribe it.”
“There is a understandable reluctance to encourage sedentary, overweight middle and older aged patients to exercise at that high a level of exercise because of a perceived greater risk of cardiac events and the likelihood of greater musculo-skeletal injuries.We almost always tell patients to begin with a walking program and go from there,” agreed Dr James Gaulte in his “Retired Doc’s Thoughts” blog.
So where does it leave you if you are not sure whether or not you can start an interval training program? Try this safe and simple fitness test. It can be done at home. On the other hand, strength training may be as important: there are preliminary results of a long term clinical study conducted on 3,233 men, aged 20 to 80 years, which show that people with highest muscle strength had lowest risks of Metabolic Syndrome.
“Muscular strength was inversely associated with metabolic syndrome incidence, independent of age and body size,” the authors write in the article published by the journal Medicine and Science in Sports and Exercise. “Potential benefits of greater muscular strength presumably through resistance exercise training should be considered in primary prevention of metabolic syndrome.”
Sources:
International Symposium on Atherosclerosis; June 21, 2006.
Medicine and Science in Sports and Exercise, Nov. 30, 2005.
Message: Working harder might be needed to improve metabolism
Related: Metabolic syndrome and mental health
Until recently, in order to improve cholesterol profiles of people with metabolic syndrome, doctors usually advised a moderate-intensity exercise such as walking. Now, we have new information indicating that though it’s good enough for weight loss and blood pressure, it may be not enough to improve your cholesterol profile.
Researchers at Norwegian University of Science and Technology in Trondheim studied how exercise type influenced people with metabolic syndrome and showed that those who was on a high-intensity interval training program had significantly improved HDL -cholesterol levels. Their exercise consisted of four sets of 4-minute high intensity bouts at 90 percent of maximal heart rate (220 minus age) each followed by a 3-min active rest. These people exercised three times a week for 16 weeks.
The control group exercised continuously for 40 minutes at 70 percent of their maximal heart rate three times per week for 16 weeks. In both groups, participants improved their blood pressure and lost weight but only the interval training group showed improved HDL levels. “When we retested the patients at the end of the 16-week study, of those who underwent the interval-training program, nearly half had trained themselves out of the metabolic syndrome, whereas just 37 percent of patients in the moderately trained group did so,” the principal researcher Dr Tjonna said. “While metabolic-syndrome patients could perform more intense exercise, clinicians are reluctant to prescribe it.”
“There is a understandable reluctance to encourage sedentary, overweight middle and older aged patients to exercise at that high a level of exercise because of a perceived greater risk of cardiac events and the likelihood of greater musculo-skeletal injuries.We almost always tell patients to begin with a walking program and go from there,” agreed Dr James Gaulte in his “Retired Doc’s Thoughts” blog.
So where does it leave you if you are not sure whether or not you can start an interval training program? Try this safe and simple fitness test. It can be done at home. On the other hand, strength training may be as important: there are preliminary results of a long term clinical study conducted on 3,233 men, aged 20 to 80 years, which show that people with highest muscle strength had lowest risks of Metabolic Syndrome.
“Muscular strength was inversely associated with metabolic syndrome incidence, independent of age and body size,” the authors write in the article published by the journal Medicine and Science in Sports and Exercise. “Potential benefits of greater muscular strength presumably through resistance exercise training should be considered in primary prevention of metabolic syndrome.”
Sources:
International Symposium on Atherosclerosis; June 21, 2006.
Medicine and Science in Sports and Exercise, Nov. 30, 2005.
Related:
Message: Managing insulin resistance can help prevent mental problems
The metabolic syndrome’s area of influence seems to be growing startlingly fast. Latest research revealed its link to mental health problems. Researchers discovered that insulin resistance can be “in your head” and created a new medical term, the “type 3 diabetes” referring to the newly discovered insulin receptors in the brain.
Researchers at Rhode Island Hospital showed that insulin resistance is tied to neurodegeneration. A drop in insulin production in the hippocampus — the part of the brain responsible for memory — can contribute to early stages of Alzheimer’s disease. In the frontal cortex of the brain, a major area affected by Alzheimer’s, the levels of insulin receptors and the brain’s ability to respond to insulin decreased.
Whether or not an insulin shortage causes a breakdown in brain cell communication, which would explain another brain disease, schizophrenia, remains unknown, but people with schizophrenia are at least twice as likely to develop Type 2 diabetes. ”There’s a whole series of steps that may prevent the schizophrenic brain from responding to insulin,” said Dr Altar of the Psychiatric Genomics Center in Boston, which is now focusing on potential treatments for schizophrenia.
Sources:
- Dementia and Geriatric Cognitive Disorders, 2007;23:29-34
- JAMA. 2004; 292:2237-2242
- J Alzheimer’s Disease; March 2005
- J Alzheimer’s Disease; November 2005
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