Torsion Control Index (TCI): measurement of midfoot shoe stability, in inch-pound units (in.-lbs.). TCI is measured through actively twisting a shoe around the longitudinal axis of the shoe, from the heel to the area of the toes joints, simulating rotational forces of the foot, and measuring the shoe’s resistance to this motion.
Vertical Compression Index (VCI): measurement of hindfoot shoe stability, in millimeters (mm). VCI is measured through compression of the heel portion of the shoe under a fixed amount of pressure, thereby measuring how the structure of the shoe controls rearfoot motion.
Rebound Index (RI): indicator of energy return of shoe to the foot, in millimeters (mm). RI is measured through compression of the heel portion of the shoe under a fixed amount of pressure, and then determining how much force the shoe exerts on the foot.
Shoe Stability Index (SSI):
indicator of shoe stability, as an index. SSI is derived through mathematically combining the quantified measurements of midfoot stability (TCI) and hindfoot stability (VCI), indicating the shoe’s overall ability to control the motion of the foot.

FEED TWITTER

Asics – GEL-NIMBUS 15

Sep 12, 2013

New Balance – 1690v1

Sep 12, 2013

New Balance – 870v3

Sep 12, 2013

Brooks – PURECADENCE 2

Sep 12, 2013

Nike – AIR PEGASUS +30

Sep 12, 2013

New Balance – 880v3

Sep 12, 2013

Mizuno – RIDER 16

Sep 12, 2013

Brooks – PUREFLOW 2

Sep 12, 2013

Brooks – PURECONNECT 2

Sep 12, 2013

Saucony – VIRRATA

Sep 12, 2013

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