TY  - JOUR
A1  - Fräulin, Laura
A1  - Maurer-Grubinger, Christian
A1  - Holzgreve, Fabian Christian
A1  - Groneberg, Jan David Alexander
A1  - Ohlendorf, Daniela Maren
T1  - Comparison of joint kinematics in transition running and isolated running in elite triathletes in overground conditions
T2  - Sensors
N2  - Triathletes often experience incoordination at the start of a transition run (TR); this is possibly reflected by altered joint kinematics. In this study, the first 20 steps of a run after a warm-up run (WR) and TR (following a 90 min cycling session) of 16 elite, male, long-distance triathletes (31.3 ± 5.4 years old) were compared. Measurements were executed on the competition course of the Ironman Frankfurt in Germany. Pacing and slipstream were provided by a cyclist in front of the runner. Kinematic data of the trunk and leg joints, step length, and step rate were obtained using the MVN Link inertial motion capture system by Xsens. Statistical parametric mapping was used to compare the active leg (AL) and passive leg (PL) phases of the WR and TR. In the TR, more spinal extension (~0.5–1°; p = 0.001) and rotation (~0.2–0.5°; p = 0.001–0.004), increases in hip flexion (~3°; ~65% AL−~55% PL; p = 0.001–0.004), internal hip rotation (~2.5°; AL + ~0–30% PL; p = 0.001–0.024), more knee adduction (~1°; ~80–95% AL; p = 0.001), and complex altered knee flexion patterns (~2–4°; AL + PL; p = 0.001–0.01) occurred. Complex kinematic differences between a WR and a TR were detected. This contributes to a better understanding of the incoordination in transition running.
KW  - triathlon
KW  - running
KW  - statistical parametric mapping
KW  - kinematics
KW  - inertial motion capture
Y1  - 2021
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/61883
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-618833
SN  - 1424-8220
VL  - 21
IS  - 14, art. 4869
SP  - 1
EP  - 17
PB  - MDPI
CY  - Basel
ER  -