Sun, May 28, 2017 | updated 02:44 AM IST

Aerobic exercise leads to remarkable change in brain

Updated: Nov 30, 2016 17:03 IST      
Aerobic exercise leads to remarkable change in brain

Washington D.C. [USA], Nov.30 (ANI): A recent study has found that aerobic exercise is more beneficial for adults with mild cognitive impairment than simple stretching.

The study will be presented today at the annual meeting of the Radiological Society of North America (RSNA).

Using a new MRI technique, researchers found that adults with mild cognitive impairment (MCI) who exercised four times a week over a six-month period, experienced an increase in brain volume in specific, but adults who participated in aerobic exercise experienced greater gains than those who just stretched.

"Even over a short period of time, we saw aerobic exercise lead to a remarkable change in the brain," said the study's lead investigator, Laura D. Baker, Ph.D., from Wake Forest School of Medicine (WFSM) in Winston-Salem, N.C.

The study included 35 adults with MCI participating in a randomized, controlled trial of exercise intervention. Individuals with MCI are at risk of developing Alzheimer's disease (AD), the most common form of dementia, which affects more than 5 million Americans today.

The participants were divided into two groups. Sixteen adults (average age 63 years) engaged in aerobic activity, including treadmill, stationary bike or elliptical training, four times per week for six months. A control group of 19 adults (average age 67 years) participated in stretching exercises with the same frequency.

High-resolution brain MR images were acquired from all participants before and after the six-month activity period. The MRI results were compared using conventional and biomechanical metrics to measure the

change in both brain volume and shape.

"We used high-resolution MR images to measure anatomical changes within areas of the brain to obtain both volumetric data and directional information," said Jeongchul Kim, Ph.D., co-investigator on the study from WFSM.

The analysis revealed that for both the aerobic and stretching groups, brain volume increased in most gray matter regions, including the temporal lobe, which supports short-term memory.

"Compared to the stretching group, the aerobic activity group had greater preservation of total brain volume, increased local gray matter volume and increased directional stretch of brain tissue," Dr. Kim said.

Among participants of the stretching group, the analysis revealed a local contraction, or atrophy, within the white matter connecting fibers. According to Dr. Kim, such directional deformation, or shape change, is partially related to volume loss, but not always.

"Directional changes in the brain without local volume changes could be a novel biomarker for neurological disease," he said. "It may be a more sensitive marker for the tiny changes that occur in a specific brain region before volumetric changes are detectable on MRI."

He said both MRI measures are important to the treatment of MCI and AD, which require the careful tracking of changes in the brain while patients engage in interventions including diet and exercise to slow the progression of the disease.

Study participants were tested to determine the effect of exercise intervention on cognitive performance. Participants in the aerobic exercise group showed statistically significant improvement in executive function after six months, whereas the stretching group did not improve.

"Any type of exercise can be beneficial," Dr. Kim said. "If possible, aerobic activity may create potential benefits for higher cognitive functioning."(ANI)

Statins improves heart structure and function: Study

Updated: May 27, 2017 23:02 IST     

Washington D.C. [USA], May 27 (ANI): Briton researchers have found that group of drugs, which act to reduce levels of cholesterol in the blood, is linked to improved heart structure and its function.

Full Story >>

Rock climbing for three hours a week may treat depression

Updated: May 27, 2017 19:14 IST     

Washington D.C. [USA], May 27 (ANI): A team of researchers have revealed that bouldering, a form of rock climbing performed without the use of ropes or harnesses, for three hours a week may help to treat depression.

Full Story >>

Beware! Recreational cannabis doubles the risk of gum disease

Updated: May 27, 2017 16:56 IST     

Washington D.C. [USA], May 27 (ANI): Beware! A study has warned that frequent recreational use of cannabis, including marijuana, hashish, and hash oil, doubles the risk of gum disease.

Full Story >>

Bengaluru (Karnataka) [India], May 27 (ANI): BGS Gleneagles Global Hospitals, a Parkway Pantai enterprise, successfully pioneered the day care Bone Marrow Transplant (BMT) transplant program for low risk transplants like autologous transplant for multiple myeloma and mini-allo transplant for various hematological disorders.

Full Story >>

New hope for stroke patients with disabilities

Updated: May 27, 2017 11:22 IST     

Washington D.C.[USA], May 27 (ANI): Stroke patients left with disabilities have been offered new hope as scientists have developed mind-controlled device that helps them retrain brains to move paralyzed hands.

Full Story >>

Washington D.C. [USA], May 27 (ANI): According to a new study, people suffering from HIV tend to spend more time in therapy to manage the chronic condition.

Full Story >>

New Delhi [India], May 26 (ANI): Latest robotic surgery may work as a boon for patients suffering from early stage oropharyngeal carcinoma (cancer of the mouth, neck and throat).

Full Story >>

23-year-old suffers severe heart attack due to smoking

Updated: May 26, 2017 16:01 IST     

New Delhi [India], May 26 (ANI): With several reasons attributing to a paradigm shift in the age groups suffering from heart attacks to younger age brackets, tobacco induced cardiac arrests rate as one of the topmost ones.

Full Story >>

New Delhi [India], May 26 (ANI): According to statistics, India has the third largest Muslim population in the world. The month of Ramadan is about to begin and a vast majority of this population will be fasting for a large number of days.

Full Story >>

Frequent recreational weed puts your mouth at risk

Updated: May 26, 2017 08:12 IST     

Washington D.C. [USA], May 26 (ANI): Frequent recreational use of cannabis, including marijuana, hashish, and hash oil, ups the risk of gum disease, a recent study has found.

Full Story >>

Washington D.C. [USA], May 25 (ANI): A study, presented at EuroCMR, says that chemotherapy-induced cardiomyopathy react more on men than women.

Full Story >>

New Delhi [India], May 25 (ANI): Envisioning a leap in emergency care, Aster DM Healthcare on Thursday launched its most novel and unique concept, the 'Aster Emergency' app, which will offer real-time interface between the patient in emergency and a GPS-enabled Aster 'Responder'.

Full Story >>

New Delhi [India], May 25 (ANI-BusinessWireIndia): Everyuth Naturals, a pioneer and a leading skincare brand known for its natural ingredients and effective products has announced the re-launch of its flagship product in the face wash category with-the new improved Everyuth Tulsi Turmeric Face Wash.

Full Story >>

New Delhi [India], May 25 (ANI): A Sutureless Valve Replacement surgery was recently performed on a 78 year old patient by Global Hospitals, Mumbai.

Full Story >>

Suicide rates among people with autism on rise

Updated: May 25, 2017 11:26 IST     

Washington D.C. [USA], May 25 (ANI): According to a recent study, suicide rates among autism patients have reached 'worryingly' high levels.

Full Story >>

Unhappy, less aware youth prone to alcohol addiction

Updated: May 25, 2017 10:36 IST     

Washington D.C. [USA], May 25 (ANI): Making youth aware of the harms of smoking and drinking could help them steer away from alcohol and cigarettes, suggests a recent study.

Full Story >>

London [UK], May 24 (ANI): Sleep is the easiest thing to forego by hardworking individuals. What we don't realize is, when sleep fails, one's health declines along with the quality of life.

Full Story >>

Washington D.C. [USA], May 24 (ANI): According to a recent study, adequate levels of Vitamin D combined with good sleep can help you manage chronic arthritis and back pain.

Full Story >>

Washington D.C. [USA], May 24 (ANI): You might consider yourself to be a recreational user but could be further along the road to drug addiction than you might have realized, a study suggests.

Full Story >>

Washington D.C. [USA], May 24 (ANI): A recent study shows a multi-protein biomarker blood test to detect breast cancer can potentially reduce use of biopsy up to 67percent.

Full Story >>