Studs: a squat-type defect in rails

Learning Rails - Rails from the outside in

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Surface defects in rails

Despite significant efforts throughout the last decades, the mechanisms behind the formation of squats — a form of rolling contact fatigue (RCF) damage in rails — are not fully understood. Proposed causes of initiation involve, but are not limited to, small initial rail surface irregularities which yield high contact stresses, rail corrugation and varying friction conditions. To complicate matt...

A biomechanical comparison of the traditional squat, powerlifting squat, and box squat.

The purpose of this study was to compare the biomechanics of the traditional squat with 2 popular exercise variations commonly referred to as the powerlifting squat and box squat. Twelve male powerlifters performed the exercises with 30, 50, and 70% of their measured 1 repetition maximum (1RM), with instruction to lift the loads as fast as possible. Inverse dynamics and spatial tracking of the ...

Choosing a Lifting Posture: Squat, Semi-Squat or Stoop

Manual Handling involves the lifting, carrying, pushing and pulling of materials and objects [1]. Training in safe handling techniques is a recommended way to reduce risk factors associated with manual handling within the working environment, particularly the lifting of low-lying objects as this has long been associated with an increased risk of lower back injuries [2]. However, manual handling...

A rare type of atrial septal defect.