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Tag: "exercise" at biology news

Walking not enough for significant exercise benefits

...put the popularized pedometer-friendly 10,000-step exercise program to the test against a traditional fitness ...ycles. The traditional group was asked to complete exercise at a moderate intensity, a level allowing for one or two sentences of conversation with ease. Intens...

Brain protein improves stroke symptoms in rats, even when injected after 3 days

...er the stroke performed significantly better in an exercise designed to test their physical abilities and coordination than rats that had been treated with placebo. ...

Stem cell activity deciphered in the aging brain

...havioral modification techniques, such as physical exercise and exposure to an enriching environment, that are known to stimulate proliferation of stem cells. ...

Holiday gluttony can spell disaster for undiagnosed diabetics

...5 percent to 7 percent of your body weight through exercise and eating right. Exercise regularly. Walk at...ith a balanced diet, weight management and regular exercise can prevent the development of diabetes or help control an existing condition," said Dr. Chandalia, ...

Experimental cancer drugs counter muscle deterioration seen in muscular dystrophy

... receiving treatment were able to perform physical exercise (e.g. running on a treadmill) similar to normal, non-dystrophic mice. Muscular dystrophy is a group of more than 30 genetic diseases, characterized by progressive weakness and deterioration of skeletal muscles. All are inherited, caused by a mutat...

Altered perception of reward in human cocaine addiction

...e have an impaired ability to perceive rewards and exercise control due to disruptions in the brain's reward and control circuits, according to a series of brain-mapping studies and neuropsychological tests conducted at the U.S. Department of Energy's Brookhaven National Laboratory. "Our findings provide the...

Poor athletic performance linked to vitamin deficiency

...etitors -- may perform worse during high-intensity exercise and have a decreased ability to repair and build muscle than counterparts with nutrient-rich diets, according to recent Oregon State University research published in the International Journal of Sport Nutrition and Exercise Metabolism. The B-vitamin...

Fast test for low blood flow in dogs detects early heart trouble

...rchers say it took them less than half the time of exercise stress tests and echocardiograms currently used t...tests that help find blockages, including not only exercise stress testing and echocardiograms, but also positron electron tomography (PET) imaging or magnetic ...

Origin of inherited pain disorder pinpointed

...racterized by pain in the extremities triggered by exercise or temperature change. In contrast to PEPD, which is caused by mutations that disrupt inactivation the sodium channel, PE arises from mutations that lower its activation threshold. The researchers concluded that their findings "further emphasize th...

Anticipation plays a powerful role in human memory, brain study finds

...nd hippocampus activity during the picture-viewing exercise two weeks before. That suggested that those subjects' brains had already started converting short-term memories of the images into longer-lasting ones. Mackiewicz says the anticipation of an uncomfortable situation probably kick-starts a kind of "...

Single molecule extends fat mice lives by reversing gene pathways associated with disease in obese

...ators of its activity. Calorie restriction and exercise have also been previously shown to increase the number of mitochondria in the liver. Mitochondria generate energy in cells. Through electron microscopy, investigators showed that the livers of the HCR fed mice had considerably more mitochondria than...

Researchers show that veins stiffen as we age

...al studies of this yet, it's possible that regular exercise training may blunt age-related increases in vein stiffness," Farquhar notes. In the second phase of the UD study, now under way, the research team wants to find out if the veins of people with high pressure are stiffer than the veins of people with...

'Exercise pill' switches on gene that tells cells to burn fat

...se of medical problems or excess weight that makes exercise difficult. Having access to an "exercise pill" would improve the quality of muscles, since muscles like to be exercised, and increase the burning of energy or excess fat in the body. And that would result in less fatty tissue, lower amounts of fat c...

A steady, high-fat diet is bad, but the news gets worse

...igned to be stressful, completed a public speaking exercise about something emotionally provocative, held an arm in ice water, and had a blood pressure cuff inflated around an arm, which gradually causes a dull ache. "Regardless of the task, we recorded greater reactivity among those who consumed the ...

NIH announces phase III clinical trial of creatine for Parkinson's disease

...y other condition, it is widely thought to improve exercise performance. The potential benefit of creatine for PD was identified by Parkinson’s researchers through a new rapid method for screening potential compounds. The double-blind, placebo-controlled, phase III study is one of the largest PD clinical tr...

Sleep disturbances affect classroom performance

...g meal before bedtime either. Avoid any rigorous exercise within six hours of your bedtime. Try to get rid of or deal with things that make you worry. Make your bedroom quiet, dark and a little bit cool. ...

Growth hormone is not the anti-aging bullet for healthy adults

...se body fat, improve mood and motivation, increase exercise capacity, increase bone density and (wink, wink) make wives and girlfriends happy. Despite these enticing claims, careful review of existing evidence does not support the prescription of GH for anti-aging purposes. Growth hormone is among the m...

Researchers urge monitoring of bone health during chemotherapy

...me enough calcium and vitamin D and get sufficient exercise to maintain strong bones." Weilbaecher and her colleagues found that when they gave mice an eight-day course of the growth factor, called granulocyte colony-stimulating factor (G-CSF), the mice lost bone mass and experienced increased bone tumor g...

Surgeons develop simpler way to cure atrial fibrillation

...States and can cause fatigue, shortness of breath, exercise intolerance and palpitations. Compared to those without atrial fibrillation, those with the disorder are five times more likely to suffer from stroke and have up to a two-fold higher risk of death. For some patients, medications can control the abnor...

Researcher to study astronaut bone loss for space biology agency

...stronauts might regularly engage in weight-bearing exercise while in orbit –?in order to stimulate integrin production and enhance or recover IGF-1 receptor function. The IGF-1 will act as a signaling device to allow Long to measure the strength of the interaction between integrins and IGF-1 receptor. "Un...

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