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Aerobic in Biological News

A 'heart healthy' diet and ongoing, moderate physical activity may protect against cognitive decline

... the researchers, sedentary elders who began new aerobic exercise programs experienced improvements in ... medical illness, lean body mass, and education, aerobic physical activity continued to show a ... sample, persons who reported higher levels of aerobic physical activity had better memory than those ...

Lessons from the Iditarod

... that may take a full day. Enormous aerobic CapacityRacing sled dogs have enormous aerobic capacity. While the untrained sled dogs have an average aerobic capacity of 175 ml/kg/min VO2 max (ratio of ...

Low-gravity training machine reduces joint, muscle impacts, says CU-Boulder study

... and speeds give us the best combination of aerobic workout while reducing the impact on joints," ... at a lower weight and still get substantial aerobic benefits while maintaining good neuromuscular ... while pool exercises don't provide sufficient aerobic stimulation and biomechanical loading on the ...

Thinking ahead: Bacteria anticipate coming changes in their environment

... change -- after sensing it -- by switching from aerobic (oxygen) to anaerobic (oxygen-less) respiration. ... temperature, many of the genes essential for aerobic respiration were practically turned off. To ... regime, and no longer turned off the genes for aerobic respiration when the temperature rose. "This ...

New study overturns orthodoxy on how macrophages kill bacteria

... cellular debris and invading organisms. They kill microbes with ROS. All aerobic cells inadvertently produce ROS that can, if left unchecked, damage DNA ... "You get the same result if you grow these mutants in the laboratory in aerobic conditions," he said. Furthermore, the SodA/SodB mutant bacteria were ...

Differences among exercisers and nonexercisers during pregnancy

... moms cite time as the main reason for not participating in regular aerobic exercise. With this in mind, the researchers wanted to determine if women ... Kansas City metro area. Exercisers participated in moderate or vigorous aerobic activity at least 30 minutes three times per week throughout the ....

Differences among exercisers and nonexercisers during pregnancy

... moms cite time as the main reason for not participating in regular aerobic exercise. With this in mind, the researchers wanted to determine if women ... Kansas City metro area. Exercisers participated in moderate or vigorous aerobic activity at least 30 minutes three times per week throughout the ....

Microbes in mud flats clean up oil spill chemicals

... of the chemicals depending on whether or not oxygen is present. In aerobic conditions (where oxygen is present), benzene, toluene and naphthalene, ... the types of micro-organisms changed as the compounds were degraded. In aerobic conditions, benzene and toluene did not appear to affect community ...

Athletes not spared from health risks of metabolic syndrome

... than 200 milligrams per day. Though the researchers did not test the aerobic capacity of the athletes, they said prehypertension and low levels of HDL cholesterol suggest these football players could benefit from increased aerobic training. "We understand these athletes want to be big, but they can't ...

Bacterial biofilms as fossil makers

... the majority of the bacterial flora present inside the embryo cells under aerobic conditions. Under oxygen-poor conditions, a much greater diversity of bacterial species was present, not detectable under aerobic conditions. The scientists also examined oxygen-starved embryos exposed ...

Exercise helps overweight children reduce anger expression

... sedentary 7- to 11-year-olds who participated in a 10-15 week afterschool aerobic exercise program or maintained their usual inactive routine. The Pediatric ... College of Georgia School of Medicine. "This finding indicates that aerobic exercise may be an effective strategy to help overweight kids reduce anger ...

UBC study establishes formula for predicting climate change impact on salmon stocks

... or high and low temperatures between which they are at their best for aerobic activities. Our study has shown that high temperatures push certain ... likely experienced temperatures that would cause a complete collapse of aerobic scope," says Farrell. "In contrast, the Gates Creek sockeye stock, ...

Exercise improves thinking, reduces diabetes risk in overweight children

... heart rates to 79 percent of maximum, which is considered vigorous. aerobic exercise training showed dose-response benefits on executive function ... The control group stayed about the same. Increasing volume of regular aerobic exercise shows increased benefits on insulin resistance in overweight ...

K-State researchers say after-school programs should promote activity, healthy nutrition

... substantially less active than the students who were not overweight during organized outdoor activities, which might be related to differences in aerobic fitness. Dzewaltowski said future research should include understanding the activity preferences of overweight children. During the baseline year, ...

Scientists sequence genome of the N2-fixing, soil-living bacterium Azotobacter vinelandii

... A. vinelandii genome that explain how the bacteria is involved in oxygen-sensitive reactions such as nitrogen fixation, while maintaining strictly aerobic metabolism. A. vinelandii has one of the highest respiratory rates of any known bacterium and has the capacity to maintain low levels of ...

Protecting fresh-cut produce

... based on eight points: overall visual quality (OVQ), browning edges, color, decay/breakdown/sliminess, aroma, crispness, off odor, and total aerobic plate count, which determines microbial load. Evaluations were conducted every 5 days for 20 days, and subjective criteria were based on the opinions ...

Impact of floods on soils

... important role in the stability of aggregates. The use of natural soils without addition of chemicals simulated a realistic field situation when aerobic upland soils remained saturated for several days and the oxygen level depleted to a minimum, causing reducing conditions. The authors believe that ...

Effects of maternal exercise on fetal breathing movements

... at the results from pregnant women between 20 and 35 years of age. The mothers were classified as exercisers if they performed moderate intensity aerobic exercise at least 30 minutes three times per week (moderate to vigorous walking, stationary bicycling and running). Mothers in the control category ...

Effects of maternal exercise on fetal breathing movements

... at the results from pregnant women between 20 and 35 years of age. The mothers were classified as exercisers if they performed moderate intensity aerobic exercise at least 30 minutes three times per week (moderate to vigorous walking, stationary bicycling and running). Mothers in the control category ...

Impact of floods on soils

... important role in the stability of aggregates. The use of natural soils without addition of chemicals simulated a realistic field situation when aerobic upland soils remained saturated for several days and the oxygen level depleted to a minimum, causing reducing conditions. The authors believe that ...

Astronauts may need more intense workouts to maintain muscle fitness in space

... between 60 and 90 days parallel to their ISS research. Trappe said, "From our bed rest studies, we found that when high-intensity resistance and aerobic exercise are balanced correctly, this is an effective prescription that is quite therapeutic in protecting skeletal muscles in a simulated ...

As good as it gets: Octogenarian muscles don't get stronger with exercise

... muscle fibers. Fast-twitch muscles are high powered and explosive and are associated with anaerobic exercise. Slow-twitch are associated with aerobic tasks, including endurance exercise such as marathons. Fast-twitch muscles are important in posture and balance and so may be of particular ...

A little java makes it easier to jive, researcher says

... After completing an initial exercise test in the lab on an ergometer, or stationary cycle, for determination of maximal oxygen consumption or aerobic power, subjects returned for two monitored high-intensity, 30-minute exercise sessions. An hour prior to each session, cyclists who had been ...

Quails get super fit by simply eating omega-3 diet

... heart disease and alleviate depression. But it was not their potential medicinal properties that intrigued Weber; it was their ability to increase aerobic capacity, much like endurance training. Could the sandpipers be building up for their endurance challenge by simply eating? All the evidence suggest ...

Symposium to look at genetic basis of exercise

... 1992. In this program, family members undertake a standard exercise program while researchers measure changes in maximal oxygen uptake (a measure of aerobic fitness), blood pressure and glucose and insulin metabolism. The researchers compared measures of adaptation to exercise on individuals within ...

Fowl soil additive breaks down crude oil

... remediated to just over 50%. The team carried out a microbial analysis of their samples and identified 21 different microbial species known as aerobic heterotrophs. The team explains that Bacillus species and Pseudomonas aeruginosa were the best oil-munching microbes but of the 21 isolates 12 ...

Patience pays off with methanol for uranium bioremediation

... donors to stimulate microbial activity. The microbial community utilizes the electron donors as 'food', consuming all of the available oxygen during aerobic respiration. Once the ground water becomes anaerobic, U6+ may be converted to U4+ as UO2, a solid mineral, sequestering the uranium within the ...

Research finds older women who are more physically fit have better cognitive function

... of women whose average age was 65 years old. From a random sample of 42 women living in Calgary, the study observed women who took part in regular aerobic activity, and another group of women who were inactive. Poulin's team recorded and measured the women's cardiovascular health, resting brain blood ...

Physical activity may not be key to obesity epidemic

... activity is defined as anything that gets your body moving. U.S. government guidelines say that each week, adults need at least 2 hours of moderate aerobic activity (such as brisk walking) or 75 minutes of vigorous activity (such as jogging). Adults also should do muscle-strengthening activities, such as ...

A green future for scrap iron

... treatment can achieve dramatic improvements over biological processes used by themselves." While biological methods, including biofilms and aerobic organisms, are effective at treating municipal wastewater, Zhang and Ma wrote in the ES&T article, they enjoy limited success in treating the less ...

Guidelines urge physical activity during pregnancy

... provide potential long-term benefits for the child." Specifically, the guidelines call for women to get at least 150 minutes of moderate-intensity aerobic activity per week during pregnancy and the postpartum period, preferably spread throughout the week. In addition to health benefits, moderate ...

Researchers discover that growing up too fast may mean dying young in honey bees

... Hilton Head, SCReactive oxygen species (ROS) occur as a by-product of aerobic metabolism and impair cellular function by damaging proteins, nucleotides and lipids. Organisms possess a variety of anti-oxidant mechanisms to ...

American Chemical Society's Weekly PressPac -- July 23, 2008

... irrigation water. The scientists compared rice plants grown in "flooded" soil in greenhouse conditions to rice plants grown under aerobic conditions. The other rice contained 10 to 15 times lower arsenic levels than the "flooded" rice, the scientists report. MTS ARTICLE #4 FOR ...

Exercise during pregnancy leads to a healthier heart in moms- and babies-to-be

... The women were grouped according to the frequency, intensity, and length of physical activity they engaged in (i.e., moderate-to-heavy intensity aerobic activity for 30 minutes per session three times per week or the metabolic equivalent). Findings The researchers found: there were ...

Heaps of climate gas

... the metabolic way that can lead to the breaking down of the methane. Interestingly, the classical process of methane oxidation, which is related to aerobic conditions, was restrained in the intensely grazed areas. According to Schloter, this is explained by the high quantities of urea in the ground. The ...

Understanding hypertension in African Americans proves elusive

... throughout the body in a layer under the skin. The six-month study involving 35 Caucasians and African Americans with hypertension found that aerobic exercise training program reduced aldosterone levels in Caucasians by 32 percent, but levels for African Americans were reduced by only 8 percent. ...

Delft water-purification method promises radical improvement

... purification method, in which aerobic bacteria form granules that sink quickly. An ... based on this research subject. With the new aerobic granular sludge technology (Nereda TM), aerobic (thus oxygen using) bacterial granules are formed ...

Researchers find link between food odors and lifespan in fruit flies

... study, using sensitive detectors in his laboratory at NMSU to analyze the aerobic respiration of the tiny flies. Carefully controlling the flow and oxygen ... study, using sensitive detectors in his laboratory at NMSU to analyze the aerobic respiration of the tiny flies. Carefully controlling the flow and oxygen ...

Walking not enough for significant exercise benefits

... energy expenditure, we found that the traditional fitness program improved aerobic fitness and reduced systolic blood pressure, more than the 10,000-step ... fitness regimen increased their peak oxygen uptake, an indicator of aerobic fitness, by 10 per cent. Those who took part in the walking program ...
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