In baseball, it is often said that the pitcher has a strong arm. However, this phrase is a misnomer. Research clearly shows that the arm musculature (hand, forearm, and arm) contributes only about ...

2 University of Antioquia, Faculty of Medicine, Sports Medicine, Medellín, Colombia 3 University of Antioquia, Faculty of Medicine, Physiology, Medellín, Colombia The relationship between force and ...

The ACTN3 gene influences your fast-twitch muscle fibers and explosive performance. Learn how your DNA affects power ...

The contraction kinetics of calcium-activated skinned muscle fibers were studied after step decreases in load by means of a quickly responding recording system. The steady velocity at a given relative ...

The actin and myosin complex (actomyosin) generates contraction force of a muscle utilizing the adenosine triphosphate (ATP) hydrolysis reaction. Many attempts have thus been made to explain the ...

Muscle contraction is the tightening, shortening, or lengthening of muscles when you do some activity. It can happen when you hold or pick up something, or when you stretch or exercise with weights.

When you take a muscle through the full range of motion, it goes through three phases of muscle contraction: eccentric, isometric, and concentric. Placing more attention on one phase can yield ...

Beet juice boosts endurance for many (but not all) people, according to a series of studies over the past five years or so. The active ingredient appears to be nitrate, which somehow reduces the ...

Atomic images of muscle molecules in action have now been captured by researchers, giving possibility of new nanomachines. At the molecular level, muscle contraction is defined by myosin molecules ...

Major League Baseball (MLB) demonstrated that the average fastball rose from 91.3 to 94.2 mph, the slider increased from 82.8 to 84.6 mph, and the change-up sped to 85.5 from 81.7 mph. Among other ...