The first exposure of a rapid displacement of a light touch reference induces an inappropriate balance corrective response during standing in a proportion of participants that is extinguished with repeated exposures. We hypothesized that if the spatial touch reference was critical to performing of a task the evoked response would be more consistently expressed across participants and observed with repeated exposures to the disturbance. To test this, 20 participants received either forward (N = 10) or backward right-touch displacements at right-heel strike during motorized treadmill walking without visual feedback. Electromyographic recordings from four arm, four leg and one neck muscle were sampled along with joint kinematic and step cycle data. Rapid displacement of the touch surface elicited responses in all 20 participants. However, the frequency of first trial responses was not different from what was observed during standing. In contrast, responses were observed in all participants with subsequent trials. None of the participants tripped or stumbled as a result of the touch perturbations; however, the step cycle duration was consistently shorter following the first forward-touch displacement. A post-experiment questionnaire revealed that many participants often perceived the touch plate displacement as a disturbance to the treadmill belt speed, suggesting the disturbance was occasionally misinterpreted. The activation of ankle muscles following the unexpected slip of a touch reference during walking suggests that tactile information from the finger is a relevant sensory cue for the regulation and control of stepping and stability.
Haptic Touch Walking Locomotion Human Gait
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This work was supported by a Natural Sciences and Engineering Research Council (Canada) Grant to JEM. The authors wish to thank Dr. Juan Forero for his assistance with developing the experimental set-up.
Allum JHJ, Tang K-S, Carpenter MG, Oude Nijhuis LB, Bloem BR (2011) Review of first trial responses in balance control: influence of vestibular loss and Parkinson’s disease. Hum Mov Sci 30:279–295CrossRefPubMedGoogle Scholar
Campbell AD, Squair JW, Chua R, Inglis JT, Carpenter MG (2013) First trial and StartReact effects induced by balance perturbations to upright stance. J Neurophysiol 110:2236–2245CrossRefPubMedGoogle Scholar
Day BL, Guerraz M, Cole J (2002) Sensory interactions for human balance control revealed by galvanic vestibular stimulation. Adv Exp Med Biol 508:129–137CrossRefPubMedGoogle Scholar
Delwaide PJ, Crenna P (1984) Cutaneous nerve stimulation and motoneuronal excitability. II: evidence for non-segmental influences. J Neurol Neurosurg Psychiatry 47:190–196CrossRefPubMedPubMedCentralGoogle Scholar
Dickstein R, Laufer Y (2004) Light touch and center of mass stability during treadmill locomotion. Gait Posture 20:41–47CrossRefPubMedGoogle Scholar
Forero J, Misiaszek JE (2013) The contribution of light touch sensory cues to corrective reactions during treadmill locomotion. Exp Brain Res 226:575–584CrossRefPubMedGoogle Scholar
Forero J, Misiaszek JE (2014) Balance-corrective responses to unexpected perturbations at the arms during treadmill walking. J Neurophysiol 112:1790–1800CrossRefPubMedGoogle Scholar
Forero J, Misiaszek JE (2015) The amplitude of interlimb cutaneous reflexes in the leg is influenced by fingertip touch and vision during treadmill locomotion. Exp Brain Res 233:1773–1782CrossRefPubMedGoogle Scholar
Hayashi R, Miyake A, Jijiwa H, Watanabe S (1981) Postural readjustments to body sway induced by vibration in man. Exp Brain Res 43:217–225CrossRefPubMedGoogle Scholar
Holden M, Venture J, Lackner JR (1994) Stabilization of posture by precision contact of the index finger. J Vestib Res 4:285–301PubMedGoogle Scholar
Jeka JJ, Schöner G, Dijkstra T, Ribeiro P, Lackner JR (1997) Coupling of fingertip somatosensory information to head and body sway. Exp Brain Res 113:475–483CrossRefPubMedGoogle Scholar
Jeka JJ, Oie K, Schöner G, Dijkstra T, Henson E (1998) Position and velocity coupling of postural sway to somatosensory drive. J Neurophysiol 79:1661–1674CrossRefPubMedGoogle Scholar
Kagamihara Y, Hayashi A, Masakado Y, Kouno Y (2003) Long-loop reflex from arm afferents to remote muscles in normal man. Exp Brain Res 151:136–144CrossRefPubMedGoogle Scholar
Kouzaki M, Masani K (2008) Reduced postural sway during quiet standing by light touch is due to finger tactile feedback but not mechanical support. Exp Brain Res 188:153–158CrossRefPubMedGoogle Scholar
Marchand-Pauvert V, Mazevet D, Nielsen J, Petersen N, Pierrot-Deseilligny E (2000) Distribution of non-monosynaptic excitation to early and late recruited units in human forearm muscles. Exp Brain Res 134:274–278CrossRefPubMedGoogle Scholar
Misiaszek JE (2003) Early activation of arm and leg muscles following pulls to the waist during walking. Exp Brain Res 151:318–329CrossRefPubMedGoogle Scholar
Misiaszek JE, Vander Meulen J (2017) Balance reactions to light touch displacements when standing on foam. Neurosci Lett 639:13–17CrossRefPubMedGoogle Scholar
Misiaszek JE, Forero J, Hiob E, Urbanczyk T (2016) Automatic postural responses following rapid displacement of a light touch contact during standing. Neuroscience 316:1–12CrossRefPubMedGoogle Scholar
Oude Nijhuis LB, Allum JHJ, Valls-Solé J, Overeem S, Bloem BR (2010) First trial reactions to unexpected balance disturbances: a comparison with the acoustic startle reaction. J Neurophysiol 104:2704–2712CrossRefPubMedGoogle Scholar
Paquet N, Watt DG, Lefebvre L (2000) Rhythmical eye-head-torso rotation alters fore-aft head stabilization during treadmill locomotion in humans. J Vestib Res 10:41–49PubMedGoogle Scholar