Aerobic fitness may be influenced by microbes in the gut, but men and women appear to show a different connection, according to a first-of-its-kind study. Researchers will present these findings at the 2026 American Physiology ...
Apr 27, 2026
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You check your smartwatch after a run. Your fitness score has dropped. You've burned hardly any calories. Your recovery score is really low. It's telling you to take the next 72 hours off exercise.
Apr 26, 2026
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For decades, elite runners have traveled the world to train at high altitude. When oxygen levels in the air are low, the body responds by producing more red blood cells—the cells responsible for carrying oxygen around the ...
Mar 16, 2026
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Increasing our level of physical fitness leads to a bigger release of brain-boosting proteins following one session of exercise, finds a new study led by a UCL researcher. The study, published in Brain Research, took a group ...
Mar 9, 2026
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A recent Finnish study has found that measuring adolescents' maximal oxygen uptake often requires a brief verification phase to ensure reliable results. The researchers also note that even small changes in how the measurement ...
Feb 18, 2026
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When New Zealand runner Sam Ruthe crossed the line to break the under-18 indoor mile world record last week at Boston University, he became the 11th fastest indoor miler of all time.
Feb 14, 2026
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Transgender women might have more muscle mass than cisgender women one to three years after hormone therapy, but their physical fitness is comparable, finds a pooled data analysis of the available evidence, published online ...
Feb 3, 2026
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VO2 max, the measure of how much oxygen the body consumes during exercise, has become a ubiquitous tool for professional athletes, but health experts increasingly say it's a measurement worthy of every exerciser's attention.
Jan 20, 2026
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According to a recent study, reducing body fat can improve long-distance running and cross-country skiing performance. However, a more effective way for female athletes to optimize their body composition is to convert body ...
Dec 9, 2025
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Running has a huge number of benefits. The popular workout can prevent disease, improve mental health and even slow the biological aging process.
Sep 12, 2025
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