Table 1.
Studies offering evidence of reliability in overall quality of movement for SLST and SDT
| Study | Test | Evidence of Reliability | Normative Values for Evaluation of Participants |
|---|---|---|---|
| Crossley (2011) | SLST | Inter-rater (Kappa = 0.6 – 0.8, 73% - 87% agreement) Intra-rater (Kappa = 0.61 -0.8, 73%-87% agreement) |
Quality of movement rated as “poor”, “fair” or “good”, based on 5-point criteria |
| Junge (2012) | SLST | Inter-rater (Kappa = 0.54 – 0.86, 86%-97% agreement) | Postural orientation of knee, hip, and trunk, based on a 4-point scale |
| Kennedy (2010) | SLST | Intra-rater (ICC = 0.85 & 0.95, 0.74-0.97; Kappa = 0.31 & 0.53) Inter-rater (ICC = 0.8 & 0.92, 0.71-0.95; Kappa = 0.37 & 0.26) |
Evaluation of trunk, hip, knee, lower leg, and overall pattern on repetitions (ICC) and limiting factor (Kappa) for left and right leg. |
| Loudon (2002) | SDT | Intra-rater (ICC = 0.94, SEM = 0.53) | Overall quality of movement |
| Park (2013) | SDT | Inter-rater (Kappa = 0.80, 85% agreement) | Quality of movement based on 5-point criteria |
| Piva (2006) | SDT | Inter-rater (Kappa = 0.67, 80% agreement) | Quality of movement based on 5-point criteria |
| Rabin (2014) | SDT | Inter-rater Overall (Kappa = 0.81, 0.68 – 0.94) Trunk (Kappa = 0.72, 0.57 – 0.87) Pelvis (Kappa = 0.71, 0.52 – 0.90) Knee (Kappa = 0.87, 0.75 – 0.99) |
Overall quality of movement & individual rating criteria for trunk, pelvis, and knee rated as “good” or “moderate” |
| Herman (2016) | SDT | Inter-rater Overall (ICC = 0.61, 73.83% agreement) <1 year (ICC = 0.61, 66.67% agreement) 1 -5 years (ICC = 0.59, 78.33% agreement) >5 years (ICC = 0.59, 73.40% agreement) |
Overall quality of movement rated as “good”, “fair”, “poor” for a cohort of physical therapists with varying levels of experience. |
| Chmielewski (2007) | SLST/SDT | Inter-rater (Overall method) SLST (Kappa = 0.01, (-0.27) – 0.25) SDT (Kappa = 0.19, (-0.15) – 0.53) Inter-rater (Specific method) SLST (Kappa = 0.18, 0.04 – 0.32) SDT (Kappa = 0.22, 0.07– 0.36) |
Overall vs. specific methods for quality of movement |
SLST – single leg squat test; SDT – step-down test; ICC – intraclass correlation coefficient; Kappa = Cohen's Kappa; 95% Confidence Interval