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1,000+ results for "Fitness"

Not every sperm is sacred: Longer-lived sperm produce healthier offspring

Scientists found that selecting longer-lived sperm increases the survival prospects and quality of offspring. The study used zebrafish to demonstrate that this selection can also carry over to the next generation. Longer-lived sperm produced offspring with higher fitness, including increased survival rates and faster swimming speeds.

SourceUniversity of East Anglia·JournalProceedings of the National Academy of Sciences·DateJul 10, 2017

Fitness trackers accurately measure heart rate but not calories burned, study finds

A recent Stanford University School of Medicine study found that fitness trackers generally accurately measure heart rate but struggle with calculating energy expenditure, which is often used to track calories burned. The study evaluated seven devices and found that six were accurate in measuring heart rate within 5% error, while none ...

SourceStanford Medicine·JournalJournal of Personalized Medicine·DateMay 24, 2017

Cardiorespiratory fitness can reduce risk of fatty liver

A Finnish study finds that moderate cardiorespiratory fitness protects against fatty liver, a significant public health concern linked to metabolic disturbances and cardiovascular disease. Achieving cardiorespiratory fitness can help mitigate the risk of fatty liver, regardless of weight status.

SourceUniversity of Turku·JournalMedicine & Science in Sports & Exercise·DateMay 3, 2017

Fish study shows important genome interactions in animal cells

Researchers found that mitochondrial-nuclear interactions affect energy production in animal cells, leading to variations in traits and potentially influencing human health. The study suggests that metabolic fitness relies on these interactions, which have significant implications for physiology and medical interventions.

Better explaining the world around us

A new framework developed by the University of Queensland has improved the accuracy of biodiversity models in ecology, conservation biology, and global change research. The framework assesses species interactions and detects higher-order interactions that were previously overlooked.

SourceUniversity of Queensland·JournalNature Ecology & Evolution·DateFeb 17, 2017

Workouts with fewer reps could yield better results

A University of Stirling analysis found that doing fewer repetitions of high-intensity cycle sprints on a bike can lead to greater improvements in cardiorespiratory fitness. The optimal number of repetitions appears to be just two, allowing for shorter workouts without compromising results.

SourceUniversity of Stirling·JournalMedicine & Science in Sports & Exercise·DateJan 13, 2017

An exercise in good health

The study confirms that cardiorespiratory fitness is a stronger predictor of mortality than established risk factors such as smoking and hypertension. Higher levels of CRF are associated with improved outcomes for certain forms of cancer, surgical risk, dementia, Alzheimer's disease, depression and Type 2 diabetes.

SourceQueen's University·JournalCirculation·DateNov 28, 2016

Want to exercise more? Get yourself some competition

A new study from the University of Pennsylvania found that competition significantly motivates people to exercise more than friendly support. The study, which recruited nearly 800 Penn students, showed that attendance rates were 90% higher in competitive groups compared to a control group. Meanwhile, team support actually led to lower ...

SourceUniversity of Pennsylvania·JournalPreventive Medicine Reports·DateOct 27, 2016

A chair for getting fit and trim

Researchers at Bielefeld University developed an active chair as part of the KogniHome project, which uses a virtual avatar to lead family members in fitness exercises. The chair measures physical parameters like respiration and heart rate while monitoring healthy posture.

No dramatic shifts in BMI for overweight girls a year after receiving fitness assessment

A new study by NYU and Columbia University found that being classified as overweight in school fitness reports does not lead to short-term changes in body mass index for female students. The researchers analyzed data from over 3 million public school students and found a small increase in BMI among those newly identified as overweight.

SourceNew York University·JournalProceedings of the National Academy of Sciences·DateMar 14, 2016

Physical activity encouraged more in boys than in girls

A study of over 550 Australian children found that girls were 19% less active than boys, with lower fitness levels and weaker home and school support. The authors suggest strategies to increase physical activity for girls should focus on home, school, and extracurricular activities

SourcePLOS·JournalPLOS ONE·DateMar 9, 2016