Interventions that manipulate gait speed may also affect the control of frontal plane mechanics. Expanding the current knowledge of frontal plane adaptations during split-belt treadmill walking could advance our understanding of the influence of asymmetries in gait speed on frontal plane mechanics and provide insight into the breadth of adaptations required by split-belt walking (SBW). Thirteen young, healthy participants, free from lower extremity injury walked on a split-belt treadmill with belts moving simultaneously at different speeds. We examined frontal plane mechanics of the ankle, knee, and hip joints during SBW, as well as medio-lateral ground reaction forces (ML-GRF). We did not observe alterations in the frontal mechanics produced during early or late adaptation of SBW when compared to conditions where the belts moved together. We did observe that ML-GRF and hip moment impulse of the fast limb increased over time with adaptation to SBW. These results suggest this modality may provide a unique therapy for individuals with gait pathologies, impairments, or compensation(s).
Roper, Terza, and Hass are with the University of Florida, Gainesville, FL, USA. Roemmich is with the University of Florida, Gainesville, FL, USA; and Johns Hopkins University School of Medicine, Baltimore, MD, USA. Tillman is with the University of Florida, Gainesville, FL, USA; and Kennesaw State University, Kennesaw, GA, USA.
EngJJ, WinterD. Estimations of the horizontal displacement of the total body centre of mass: considerations during standing activities. 1993;1:141–144. 10.1016/0966-6362(93)90055-610.1016/0966-6362(93)90055-6)| false
JohnCT, SethA, SchwartzMH, DelpSL. Contributions of muscles to mediolateral ground reaction force over a range of walking speeds. 2012;45:2438–2443. PubMed doi: 10.1016/j.jbiomech.2012.06.03710.1016/j.jbiomech.2012.06.037)| false
RobbinsSM, MalyMR. The effect of gait speed on the knee adduction moment depends on waveform summary measures. 2009;30:543–546. PubMed doi: 10.1016/j.gaitpost.2009.08.2361974827210.1016/j.gaitpost.2009.08.236)| false
OrendurffMS, SegalAD, KluteGK, BergeJS, RohrES, KadelNJ. The effect of walking speed on center of mass displacement. 2004;41(6A):829–834. 10.1682/JRRD.2003.10.015010.1682/JRRD.2003.10.015015685471)| false
SawersAKellyVEKartinDHahnME. Gradual training reduces the challenge to lateral balance control during practice and subsequent performance of a novel locomotor task. Gait Posture.2013;38(4):907–911. PubMed doi: 10.1016/j.gaitpost.2013.04.019
SawersA, KellyVE, KartinD, HahnME. Gradual training reduces the challenge to lateral balance control during practice and subsequent performance of a novel locomotor task. 2013;38(4):907–911. PubMed doi: 10.1016/j.gaitpost.2013.04.01910.1016/j.gaitpost.2013.04.01923706506)| false
TurnsLJNeptuneRRKautzSA. Relationships between muscle activity and anteroposterior ground reaction forces in hemiparetic walking. Arch Phys Med Rehabil.2007;88(9):1127–1135. PubMed doi: 10.1016/j.apmr.2007.05.027
BenjaminiYHochbergY. Controlling the false discovery rate: a practical and powerful approach to multiple testing. Journal of the Royal Statistical Society. Series B (Methodological).1995;57:289–300. 10.2307/2346101
ProkopTBergerWZijlstraWDietzV. Adaptational and learning processes during human split-belt locomotion: interaction between central mechanisms and afferent input. Exp Brain Res.1995;106(3):449–456. PubMed doi: 10.1007/BF00231067
ProkopT, BergerW, ZijlstraW, DietzV. Adaptational and learning processes during human split-belt locomotion: interaction between central mechanisms and afferent input. 1995;106(3):449–456. PubMed doi: 10.1007/BF0023106710.1007/BF002310678983988)| false