Carla Tardi is a technical editor and digital content producer with 25+ years of experience at top-tier investment banks and money-management firms. Robert Kelly is managing director of XTS Energy LLC ...

A concentric contraction is a type of muscle activation that causes tension on your muscle as it shortens. As your muscle shortens, it generates enough force to move an object. This is the most ...

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.

A gush of water, being doubled over in pain, the head of your baby crowning. These are things many women picture when they think of labor. However, for most laboring women, these things take time and ...

Figure 1: Measuring the contraction of single platelets with AFM. Figure 3: Elasticity and adhesion measurement for contracted platelets. According to our measurements, platelets are two orders of ...

Contraction joints (sometimes called control joints) are used in unreinforced and lightly reinforced slabs-on-ground to minimize random cracking. By creating straight-line weakened-planes in concrete, ...