Does preferred technique influence how kinematics change during a run to exhaustion?—A cluster based approach
Adrian R. Rivadulla, Zak Sheehy, Xi Chen, Dario Cazzola, Grant Trewartha, Ezio Preatoni
TL;DR
This study explores how running technique changes during fatigue and whether these changes differ based on a runner's preferred style.
Contribution
The study identifies cluster-specific kinematic adaptations during fatigue in runners with different preferred techniques.
Findings
Runners with a tilted pelvis showed greater trunk-to-pelvis extension and hip flexion compared to neutral pelvis runners.
Fatigue caused similar adaptations in both clusters, including reduced stride frequency and increased coordination variability.
Cluster-specific kinematic differences suggest potential mechanical or performance consequences of fatigue.
Abstract
Fatigue-related changes in running technique may depend on a runner’s preferred style. Understanding these changes can inform targeted training to enhance performance. In previous work, we identified two technique-based clusters of runners: the “neutral pelvis” and the “tilted pelvis” clusters. This follow-up study examined whether fatigue induces cluster-specific technique adaptations. Sixty runners (neutral pelvis, n = 32; tilted pelvis, n = 28) completed a treadmill run to exhaustion at 5% above their individual lactate threshold speed. Stride frequency, duty factor, trunk and lower limb kinematics were compared between clusters at the start, middle, and end of the run using a 2-way repeated measures analysis of variance (ANOVA). All runners reached exhaustion in ∼20 minutes, covering ∼5 km. Runners from the tilted pelvis cluster consistently showed greater trunk-to-pelvis extension,…
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Taxonomy
TopicsLower Extremity Biomechanics and Pathologies · Sports Performance and Training · Osteoarthritis Treatment and Mechanisms