Identification of low-effort patients through dynamometry

Using Fitts' Law to Detect Intentional Misrepresentation

“…This test required participants to exert maximal grip strength at five different handle positions, starting at the narrowest position (position 1) and ending at the widest position (position 5) (Stokes, Landrieu, Domangue, & Kunen, 1995). Stokes argued that when force of contraction was plotted against handle position, MVE performance was characterized by a skewed, bell-shaped curve, while IM performance was characterized by five uniform force measures (Stokes, et al, 1995).…”

“…Stokes argued that when force of contraction was plotted against handle position, MVE performance was characterized by a skewed, bell-shaped curve, while IM performance was characterized by five uniform force measures (Stokes, et al, 1995). However, no empirical evidence was provided to support this statement (Gutierrez & Shechtman, 2003).…”

A Decision-Analysis Model to Diagnose Feigned Hand Weakness

“…Standard deviation of insincere force plots (feigned hand weakness) is lower in comparison with sincere force plots. 8,9 For diagnostic purposes, we have to choose a threshold standard deviation. A standard deviation below the threshold signifies a positive result (insincere patient).…”

“…With feigned hand weakness, REG force is greater than static force. 8,10,11 With sincere effort, REG force is less than static force. This suggests, with rapid hand switching, insincere patients are unable to consciously limit grip force at a submaximal level.…”

Grip Force, Finger Force, and Comfort analyses of Young and Old People by Hand Tool Handle Shapes

“…, 손 부상 자의 작업능력 평가를 위한 목적 (Berryhill, 1990;Williams, 1990;Schultz, 1995), 힘의 단계를 결정하기 위한 목적 (Chengalur et al, 1990;Stokes et al, 1995;Hamilton et al, 1996), 작업자에게 최적화된 수공구 손잡이 설계를 위 한 목적 (Grant et al, 1992;Blackwell et al, 1999;Kong and Freivalds, 2003;Kong et al, 2005;Lowe, 2005a, 2005b;정명철 등, 2007;김대민과 공용구, 2008) 등이 있다.…”