Researchers found that fibromyalgia patients exhibit a blunted response to exercise-induced sympathetic nervous activity, indicating normal muscle physiology. The study also revealed no increased pain or fatigue in the post-exercise period, challenging previous assumptions about the role of physical effort in exacerbating symptoms.
Research reveals that female starlings choose mates with the strongest immune systems, as these males tend to have better singing abilities. The finding supports a decade-old theory that suggests evolution has found a way to prevent male birds from cheating on their reproductive quality.
A study found that genetic traits from crops can persist in weeds for generations, potentially leading to hardy and hard-to-kill weeds. This raises concerns about the long-term impact of transgenic crops on weed populations.
A 2-year study found that brief counseling by health professionals significantly increased physical fitness and activity levels in inactive adults, particularly women. The interventions were equally effective for men and women, with a 5% improvement in cardiorespiratory fitness.
A USC-developed nutrition and exercise program has been shown to significantly reduce weight gain in children, increase fruit and vegetable consumption, and enhance physical activity. The Kids N Fitness program is effective in promoting healthy eating habits and regular exercise among obese children.
Research by Penn State specialist Dr. W. Larry Kenney highlights the strain on older hearts when exercising in heat stress, increasing mortality rates among those over 65. Regular exercise and hydration countermeasures can mitigate effects, but individual factors like fitness level and medication impact thermoregulation.
A recent study found that US military members have lower physical fitness rates compared to civilians, with 37% exercising less than three times a week. However, military members who exercise tend to do so more regularly than civilians, and required physical training is an effective method for increasing overall activity levels.
A study found that 28% of fitness clubs in Ohio failed to conduct pre-entry screenings for cardiovascular problems, while 17% reported heart attacks or sudden deaths. Gyms must implement recommended screening practices and emergency response plans to ensure member safety.
A study of nearly three million fitness club members found a small but definite increase in risk of exercise-related fatal heart attacks or strokes among sporadic exercisers. Regular exercise is recommended to lower this risk, particularly for those with cardiovascular disease.
A new study aims to improve adolescent girls' fitness levels and reduce their risk of obesity. The Trial of Activity in Adolescent Girls (TAAG) project will test whether structured physical activity programs can increase fitness and prevent decline, with a focus on underrepresented groups.
A study surveyed over 300 women aged 70+ about fitness activities, finding they generally recognize health benefits but experience strong, anxiety-driven fears of risks. The researcher recommends specialty programs addressing specific needs, improving perceptions of exercise as a viable disease risk reduction strategy.
Army soldiers surpassed the Healthy People 2000 goals for physical fitness, with 70% reporting aerobic activity and 97% doing muscle strengthening exercises at least once a week. They also adopted healthier behaviors in nutrition, safety, and alcohol use categories.
Researchers at the San Francisco VA Medical Center have developed a more reliable way to measure physical fitness in elderly people. The new method, called OUES, calculates oxygen uptake efficiency slope and can be completed without requiring maximum effort, making it suitable for patients with heart disease or kidney failure.
A study found that two methods to increase physical activity among sedentary adults were comparable in effectiveness but differed in cost-effectiveness. The lifestyle approach, which taught problem-solving and self-management skills, was more cost-effective, averaging $17/month over a two-year period.
A new study by Oregon State University found that postmenopausal women who participate in a long-term fitness regimen can prevent significant bone loss in the hip. The exercise program, which includes weighted vests and jumping exercises, showed a significant reduction in bone density loss compared to a control group.
A prospective cohort study found that regular exercise can benefit men with type 2 diabetes, while low physical fitness is associated with mortality. Meanwhile, a dangerous combination of blood thinners and intravenous steroids requires daily monitoring to prevent life-threatening bleeding.
A new study found that lack of physical fitness is a significant factor in sports injuries among women, with female trainees experiencing twice as many injuries as men. The research also showed that women can improve their fitness levels rapidly and reduce injury risk through modified training programs.
A new study by the University of Toronto found that children who had a daily activity program in Grades 1 to 6 showed no advantages in aerobic fitness 20 years later. The study highlights the importance of developing lasting skills and attitudes in physical education programs.
Researchers compare gene order on X and Y chromosomes of humans, cats, and mice, finding that cats and humans have similar gene orders on both chromosomes. A small block of genes with preserved order and spacing was discovered in mouse, cat, and human, suggesting an important function in male reproductive fitness.
A Mayo Clinic researcher found that nearly 8% of female soldiers on active duty in the US Army suffer from eating disorders. The study, led by Dr. Tamara Lauder, suggests that military fitness requirements and pressure to maintain a lean physique contribute to the higher prevalence of eating disorders among women.
A recent study found that leisure physical activity buffers the effects of minor stress, but aerobic fitness does not. This suggests that exercise may help minimize stress-related symptoms by distracting from stressors or instilling a sense of accomplishment.
A study by University of Toronto Professor Roy Shephard found that light physical training has the strongest protective effect on immunity in sedentary young adults. The research, published in the Journal of Sports Medicine and Physical Fitness, suggests that low-volume exercises are optimal for improving immunity in this population.
A team of young researchers, mentored by Associate Professor Max Vercruyssen, are developing a computerized driving simulator to evaluate astronaut fitness for space travel. The simulator aims to determine alertness, judgment, and motor skills related to operating an automobile, similar to assessing fitness-for-duty in the space shuttle.
A recent study published in Health Psychology suggests that self-confidence about exercise plays a significant role in its emotional benefits. The higher a person's self-efficacy, the more likely they are to experience positive emotions during physical activity.
A three-year exercise program significantly lowered mortality rates among men who had suffered a heart attack. The study found that increased physical work capacity during the trial period was associated with reduced risk of death at every time period.
A large study found that cardiorespiratory fitness was associated with a lower risk of death from all causes, regardless of body fatness. The researchers suggest that fitness may be more important than being lean for reducing obesity and mortality risk.
A study by Cooper Institute for Aerobics Research found that small lifestyle changes can improve cardiorespiratory fitness and blood pressure. After 2 years, both groups had significantly increased their physical activity and maintained improvements.
The sensory exploitation theory suggests that animals choose mates using sensory systems shaped for daily survival needs, rather than solely for sexual attraction. This model proposes that animals have built-in preferences for traits unrelated to genetic fitness, which can be seen in examples such as water mites mimicking copepod vibra...
The new web site, Live Healthier, Live Longer, provides personalized information and practical steps for reducing LDL cholesterol levels. The site features various activities, including a Cyber Kitchen and Virtual Fitness Room, to help users make healthier lifestyle choices.
A new study by geneticists at the University of Georgia shows that female fruit flies who have a choice between mates have offspring that live longer as adults. The research confirms the validity of the 'good genes' model, which proposes that females prefer males with certain traits because they indicate high genetic quality.
A study found that eight weeks of health education classes and vigorous exercise can reduce children's risk of developing heart disease during adulthood. The program resulted in significant reductions in cholesterol levels, systolic blood pressure, body fat, and increased health knowledge.
Research on Nicotiana attenuata reveals that induced defenses can have both ecological benefits and costs, including resource-based costs and potential negative impacts on seed production. The discovery of endogenous wound signals, such as jasmonic acid, has provided tools to activate defenses independently of herbivore attack.
A six-month aerobic exercise program improved the functional capacity, strength, and independence of heart failure patients aged 61-91. The study showed a 22% increase in physical fitness, with 43% of patients completing the trial and experiencing significant improvements.
Researchers at Cornell University discovered a unique behavior in paper wasps called 'male-stuffing,' where females aggressively force males into empty nest cells to limit their food consumption. This behavior may maximize worker wasps' inclusive fitness and contribute to the colony's fitness.
Researchers found that mating is more harmful to females than egg laying, with costs imposed by males leading to female survival and reproductive value depression. In contrast, egg production has a minimal impact on female fitness under certain conditions.
A recent clinical study found that people with knee osteoarthritis who exercise in moderation experience reduced pain, improved physical performance, and less disability. The Fitness Arthritis and Seniors Trial (FAST) results compared improvement measurements in aerobic and resistance training programs to a health education program.
A genetic analysis by University of Illinois researchers reveals that Illinois Prairie Chickens have lost significant genetic diversity due to population decline, affecting their fitness. The study suggests introducing birds from neighboring states may help restore the species' numbers and health.
A study found that aerobic exercise programs improve cardiovascular function in sedentary older people, even those with less reserve mechanisms to augment their heart function. The results suggest that it's never too late to benefit from exercise and improve cardiac fitness, regardless of age or prior physical conditioning.
Daily performance testing is suitable for immediate determination of relevant psychomotor impairment at the start of work. However, managers must remain aware of test limitations associated with job requirements, such as decision-making skills required for driving a truck safely.
Research suggests that physically fit women experience lower blood pressure during stressful days at work, compared to unfit women. This buffering effect reduces the risk of heart disease.