TY - JOUR
T1 - The influence of matching populations on kinematic and kinetic variables in runners with iliotibial band syndrome
AU - Grau, Stefan
AU - Maiwald, Christian
AU - Krauss, Inga
AU - Horstmann, Thomas
AU - Axmann, Detlef
N1 - Funding Information:
This study was funded in part by Nike Inc., USA. The authors have no conflicts of interest with regard to people or organizations that could influence or bias their work. Special thanks to Pia Janssen and Dennis Schmid for their valuable help during this study, and Lisa Neumann for her assistance preparing the manuscript. Please address all correspondence concerning this article to Stefan Grau, Medical Clinic, Department of Sports Medicine, University of Tübingen, Silcher-strasse 5, Tübingen, Germany 72076.
PY - 2008/12
Y1 - 2008/12
N2 - The purpose of this study was to assess how participant matching influences biomechanical variables when comparing healthy runners and runners with iliotibial band syndrome (ITBS). We examined 52 healthy runners (CO) and 18 with ITBS, using three-dimensional kinematics and pressure distribution. The study population was matched in three ways and compared with the biomechanical findings: ITBS versus CO I (unmatched), ITBS versus CO II (matched to gender) and ITBS versus CO III (matched to gender, height, and weight). The final number of participants in each group was n = 18. The kinematic variables showed a dependency on the matching process. The largest statistically significant differences (after Bonferroni adjustment) in the frontal and transverse planes were between ITBS and CO III (p = .008). Pressure measurements were also dependent on the matching process, with decreasing and nonsignificant differences (p = .006) between ITBS and CO after refining the process (ITBS vs. CO III). The results of this study and the necessity of matching seem to be plausible (lever arms, different running styles). Data matching is important for understanding overuse injuries in running.
AB - The purpose of this study was to assess how participant matching influences biomechanical variables when comparing healthy runners and runners with iliotibial band syndrome (ITBS). We examined 52 healthy runners (CO) and 18 with ITBS, using three-dimensional kinematics and pressure distribution. The study population was matched in three ways and compared with the biomechanical findings: ITBS versus CO I (unmatched), ITBS versus CO II (matched to gender) and ITBS versus CO III (matched to gender, height, and weight). The final number of participants in each group was n = 18. The kinematic variables showed a dependency on the matching process. The largest statistically significant differences (after Bonferroni adjustment) in the frontal and transverse planes were between ITBS and CO III (p = .008). Pressure measurements were also dependent on the matching process, with decreasing and nonsignificant differences (p = .006) between ITBS and CO after refining the process (ITBS vs. CO III). The results of this study and the necessity of matching seem to be plausible (lever arms, different running styles). Data matching is important for understanding overuse injuries in running.
KW - Matching process
KW - Pressure distribution
KW - Runner's knee
KW - Three-dimensional movement
UR - http://www.scopus.com/inward/record.url?scp=58149357282&partnerID=8YFLogxK
U2 - 10.1080/02701367.2008.10599511
DO - 10.1080/02701367.2008.10599511
M3 - Article
C2 - 19177946
AN - SCOPUS:58149357282
SN - 0270-1367
VL - 79
SP - 450
EP - 457
JO - Research Quarterly for Exercise and Sport
JF - Research Quarterly for Exercise and Sport
IS - 4
ER -