Column

Fatigue Is Determined by “Type,” Not “Quantity”: What Happens Inside the Body on Days You Cannot Run

Your legs do not hurt, and there is no muscle soreness. There is no joint discomfort, and you have been recovering well ...

2026.09.03

Body & Conditioning

"Even though I'm keeping up my training volume as I get older, why am I suddenly unable to run like I used to?""I droppe...

2026.09.02 2026.10.18

Strength & Physical PerformanceYouTube英語

Grip strength seems like such a small thing. Why should it tell us anything about the rest of the body?Most of us first ...

2026.08.29 2026.09.17

Masters & AgingYouTube英語

When physical strength declines with age, it is easy to assume that "muscle mass has decreased." But is that truly the w...

2026.08.28

Strength & Physical Performance

Fueling and hydration were perfect... Electrolytes were properly dissolved in the bottle. Energy gels were consumed ever...

2026.08.27

Exercise Physiology

Late in a race, when legs grow heavy and maintaining momentum demands every ounce of focus, many athletes reach for a ca...

2026.08.26

Exercise Physiology

Growing up in Japan, my memories of summer nights were simple. We would open the windows to catch whatever breeze existe...

2026.08.25 2026.09.17

Body & ConditioningYouTube英語

Would you be surprised if you were told that among the things we daily believe to be "good for our health," there are ac...

2026.07.31 2026.10.18

Metabolism & Cellular ScienceYouTube英語

When marathoners, triathletes, and cyclists look to break through performance plateaus, altitude training almost always ...

2026.07.28 2026.09.17

Body & ConditioningYouTube英語

A standalone winter full marathon and the run leg of a long-distance triathlon both cover the exact same distance: 42.19...

2026.07.24 2026.09.07

Performance