The inter- and intrarater reliability and agreement for field-based assessment of scapular control, shoulder range of motion, and shoulder isometric strength in elite adolescent athletes

TY - JOUR

T1 - The inter- and intrarater reliability and agreement for field-based assessment of scapular control, shoulder range of motion, and shoulder isometric strength in elite adolescent athletes

AU - Møller, M.

AU - Attermann, J.

AU - Myklebust, G.

AU - Lind, M.

AU - Sørensen, H.

AU - Hebert, J. J.

AU - Nielsen, R. O.

AU - Bertelsen, S. L.

AU - Wedderkopp, N.

PY - 2018/7/1

Y1 - 2018/7/1

N2 - Objectives: To investigate the intra- and interrater reliability and agreement for field-based assessment of scapular control, shoulder range of motion (ROM), and shoulder isometric strength in elite youth athletes. Design: Test-retest reliability and agreement study. Setting: Eight blinded raters (two for each assessment) assessed players on field during two testing sessions separated by one week. Participants: 162 elite youth handball players with or without a history of previous shoulder pain within the preceding six months. Main outcome measures: Kappa (κ) and prevalence-adjusted bias-adjusted kappa (PABAK) coefficients for scapular control reliability, and 95% limits of agreement (LOA) for ROM and strength agreement. Results: Scapular control demonstrated substantial to almost perfect reliability (κ 0.67 to 0.84, PABAK from 0.68 to 0.88). Mean strength values ranged from 0.9 N/kg to 1.6 N/kg, and LOAs ranged from −0.7 N/kg to 0.8 N/kg. Rotational strength revealed additionally systematic bias between and within rater. No or acceptable systematic bias were evident for ROM and abduction strength measures. Mean values and LOAs for ROM ranged between 39.9° to 52.3°, and from −12.6° to 9.9°, respectively. Conclusions: Scapular control and ROM can be assessed on the field with acceptable reliability. The threshold for reliable measurements of isometric strength using handheld-dynamometers is high.

AB - Objectives: To investigate the intra- and interrater reliability and agreement for field-based assessment of scapular control, shoulder range of motion (ROM), and shoulder isometric strength in elite youth athletes. Design: Test-retest reliability and agreement study. Setting: Eight blinded raters (two for each assessment) assessed players on field during two testing sessions separated by one week. Participants: 162 elite youth handball players with or without a history of previous shoulder pain within the preceding six months. Main outcome measures: Kappa (κ) and prevalence-adjusted bias-adjusted kappa (PABAK) coefficients for scapular control reliability, and 95% limits of agreement (LOA) for ROM and strength agreement. Results: Scapular control demonstrated substantial to almost perfect reliability (κ 0.67 to 0.84, PABAK from 0.68 to 0.88). Mean strength values ranged from 0.9 N/kg to 1.6 N/kg, and LOAs ranged from −0.7 N/kg to 0.8 N/kg. Rotational strength revealed additionally systematic bias between and within rater. No or acceptable systematic bias were evident for ROM and abduction strength measures. Mean values and LOAs for ROM ranged between 39.9° to 52.3°, and from −12.6° to 9.9°, respectively. Conclusions: Scapular control and ROM can be assessed on the field with acceptable reliability. The threshold for reliable measurements of isometric strength using handheld-dynamometers is high.

KW - Hand-held dynamometer

KW - Handball

KW - Inclinometer

KW - Scapular dyskinesis

UR - http://www.scopus.com/inward/record.url?scp=85047412277&partnerID=8YFLogxK

U2 - 10.1016/j.ptsp.2018.04.005

DO - 10.1016/j.ptsp.2018.04.005

M3 - Journal article

C2 - 29807278

AN - SCOPUS:85047412277

SN - 1466-853X

VL - 32

SP - 212

EP - 220

JO - Physical Therapy in Sport

JF - Physical Therapy in Sport

ER -