Tensile force sensor for recording and monitoring physical exercise

A tensile force sensor adapted for recording and monitoring of physical exercise, said tensile force sensor comprising at least one strain gauge (3), said tensile force sensor further comprising:

• a. a tensioner (1) comprising a straight central segment (11) defining a rectilinear form having a plane and a longitudinal axis, said straight central segment having a first thickness, and two angled bends (10) serving as arms set on opposing ends of said straight central segment, said angled bends forming angles offset from said plane, said arms each having a second thickness, both the central segment and two angled bends made from a hard material with predetermined constant of elasticity, each of said angled bends coupled to said straight central segment on interior ends of each of said arms, and coupled to affixing extremities at opposing ends of each of said arms;
• wherein said second thickness is significantly greater than said first thickness adapted to allow the straight central segment to bend under longitudinal tension forces while the arms are not appreciably bent;
• b. wherein said at least one strain gauge (3) disposed on said straight central segment (11) in such a way to monitor dimensional deformation of said straight central segment perpendicular said plane;
• wherein tensile forces applied in a force parallel said plane causes transformation of force vectors perpendicular said plane to cause said straight central segment to bend into a U-shaped distortion of the straight central segment (11), said at least one strain gauge adapted to measure the distance of elastic distortion of said straight central segment perpendicular said plane.