Low-frequency accelerations over-estimate impact-related shock during walking.

Journal article


James, DC, Mileva, KN and Cook, DP (2014). Low-frequency accelerations over-estimate impact-related shock during walking. Journal of Electromyography and Kinesiology. 24 (2), pp. 264-270.
AuthorsJames, DC, Mileva, KN and Cook, DP
Abstract

During gait, a failure to acknowledge the low-frequency component of a segmental acceleration signal will result in an overestimation of impact-related shock and may lead to inappropriately drawn conclusions. The present study was undertaken to investigate the significance of this low-frequency component in two distinctly different modalities of gait: barefoot (BF) and shod (SHOD) walking. Twenty-seven participants performed five walking trials at self-selected speed in each condition. Peak positive accelerations (PPA) at the shank and spine were first derived from the time-domain signal. The raw acceleration signals were then resolved in the frequency-domain and the active (low-frequency) and impact-related components of the power spectrum density (PSD) were quantified. PPA was significantly higher at the shank (P<0.0001) and spine (P=0.0007) in the BF condition. In contrast, no significant differences were apparent between conditions for shank (P=0.979) or spine (P=0.178) impact-related PSD when the low-frequency component was considered. This disparity between approaches was due to a significantly higher active PSD in both signals in the BF condition (P<0.0001; P=0.008, respectively), due to kinematic differences between conditions (P<0.05). These results indicate that the amplitude of the low-frequency component of an acceleration signal during gait is dependent on knee and ankle joint coordination behaviour, and highlight that impact-related shock is more accurately quantified in the frequency-domain following subtraction of this component.

KeywordsMuscle, Skeletal; Ankle Joint; Knee Joint; Humans; Gait; Walking; Acceleration; Shoes; Adult; Female; Male; Young Adult; Biomechanical Phenomena; Barefoot; Gait; Heel-strike; Kinematics; Shock; Acceleration; Adult; Ankle Joint; Biomechanical Phenomena; Female; Gait; Humans; Knee Joint; Male; Muscle, Skeletal; Shoes; Walking; Young Adult; 1106 Human Movement And Sports Science; Sport Sciences
Year2014
JournalJournal of Electromyography and Kinesiology
Journal citation24 (2), pp. 264-270
PublisherLondon South Bank University
ISSN1873-5711
Digital Object Identifier (DOI)doi:10.1016/j.jelekin.2013.12.008
Publication dates
Print09 Jan 2014
Publication process dates
Deposited31 May 2018
Accepted26 Dec 2013
Accepted author manuscript
License
CC BY-NC-ND 4.0
Permalink -

https://openresearch.lsbu.ac.uk/item/87888

  • 1
    total views
  • 10
    total downloads
  • 1
    views this month
  • 6
    downloads this month

Related outputs

Effect of Immobilisation on Neuromuscular Function In Vivo in Humans: A Systematic Review
Campbell, M, Varley-Campbell, J, Fulford, J, Taylor, B, Mileva, K and Bowtell, J (2019). Effect of Immobilisation on Neuromuscular Function In Vivo in Humans: A Systematic Review. Sports Medicine.
Effect of Hypohydration on Peripheral and Corticospinal Excitability and Voluntary Activation
Bowtell, JL, Avenell, G, Hunter, SP and Mileva, KN (2013). Effect of Hypohydration on Peripheral and Corticospinal Excitability and Voluntary Activation. PLoS ONE. 8 (10), p. e77004.
Repeated sprint training in normobaric hypoxia
Cooke, K, Galvin, HM, Sumners, DP, Mileva, KN and Bowtell, JL (2013). Repeated sprint training in normobaric hypoxia. British Journal of Sports Medicine. 47, pp. i74-i79.
Gait-Initiation Onset Estimation During Sit-to-Walk Comparing Healthy Individuals and Ambulatory Community-Dwelling Stroke Survivors
Jones, GD, James, DC, Thacker, M, Perry, R and Green, DA (2019). Gait-Initiation Onset Estimation During Sit-to-Walk Comparing Healthy Individuals and Ambulatory Community-Dwelling Stroke Survivors. doi:10.18744/LSBU.002933
Lower body acceleration and muscular responses to rotational and vertical whole-body vibration of different frequencies and amplitudes
Mileva, K, Zaidell, L, James, DC, Bowtell, J, Pollock, RD, Newham, DJ and Sumners, DP (2019). Lower body acceleration and muscular responses to rotational and vertical whole-body vibration of different frequencies and amplitudes. Dose-Response. 17 (1).
Parameters that remain consistent independent of pausing before gait-initiation during normal rise-to-walk behaviour delineated by sit-to-walk and sit-to-stand-and-walk.
Jones, GD, James, DC, Thacker, M and Green, DA (2018). Parameters that remain consistent independent of pausing before gait-initiation during normal rise-to-walk behaviour delineated by sit-to-walk and sit-to-stand-and-walk. PLoS ONE. 13 (10).
Selected B vitamins and their possible link to the aetiology of age-related sarcopenia: relevance of UK dietary recommendations.
Aytekin, N, Mileva, KN and Cunliffe, AD (2018). Selected B vitamins and their possible link to the aetiology of age-related sarcopenia: relevance of UK dietary recommendations. Nutrition Research Reviews.
Coefficient of cross correlation analysis of kinematics during walking barefoot and in Vibram FiveFingers®
James, DC and Cook, D (2011). Coefficient of cross correlation analysis of kinematics during walking barefoot and in Vibram FiveFingers®. Footwear Science. 3 (SUP 1), pp. S79-S81.
Wide-pulse electrical stimulation to an intrinsic foot muscle induces acute functional changes in forefoot-rearfoot coupling behaviour during walking.
James, DC, Chesters, T, Sumners, DP, Cook, DP, Green, DA and Mileva, KN (2012). Wide-pulse electrical stimulation to an intrinsic foot muscle induces acute functional changes in forefoot-rearfoot coupling behaviour during walking. International Journal of Sports Medicine. 34 (5), pp. 438-443.
The biomechanical characteristics of wearing FitFlop™ sandals highlight significant alterations in gait pattern: a comparative study.
James, DC, Farmer, LJ, Sayers, JB, Cook, DP and Mileva, KN (2015). The biomechanical characteristics of wearing FitFlop™ sandals highlight significant alterations in gait pattern: a comparative study. Clinical Biomechanics. 30 (4), pp. 347-354.
47 An acute session of high-frequency, low-intensity, wide-pulse electrical stimulation evokes fatigue adaptations in an intrinsic foot muscle
James, DC, Mileva, KN and Solan, MC (2015). 47 An acute session of high-frequency, low-intensity, wide-pulse electrical stimulation evokes fatigue adaptations in an intrinsic foot muscle. British Journal of Sports Medicine. 49 (Suppl).
Wide-pulse, high-frequency, low-intensity neuromuscular electrical stimulation has potential for targeted strengthening of an intrinsic foot muscle: a feasibility study
James, DC, Solan, MC and Mileva, KN (2018). Wide-pulse, high-frequency, low-intensity neuromuscular electrical stimulation has potential for targeted strengthening of an intrinsic foot muscle: a feasibility study. Journal of Foot and Ankle Research. 11.
Improved Exercise Tolerance with Caffeine Is Associated with Modulation of both Peripheral and Central Neural Processes in Human Participants.
Bowtell, JL, Mohr, M, Fulford, J, Jackman, SR, Ermidis, G, Krustrup, P and Mileva, KN (2018). Improved Exercise Tolerance with Caffeine Is Associated with Modulation of both Peripheral and Central Neural Processes in Human Participants. Frontiers in Nutrition. 5, p. 6.
Loading rate and contraction duration effects on in vivo human Achilles tendon mechanical properties.
McCrum, C, Oberländer, KD, Epro, G, Krauss, P, James, DC, Reeves, N and Karamanidis, K (2017). Loading rate and contraction duration effects on in vivo human Achilles tendon mechanical properties. Clinical Physiology and Functional Imaging.
Muscle metabolic and neuromuscular determinants of fatigue during cycling in different exercise intensity domains.
Black, MI, Jones, AM, Blackwell, JR, Bailey, SJ, Wylie, LJ, McDonagh, STJ, Thompson, C, Kelly, J, Sumners, P, Mileva, KN, Bowtell, JL and Vanhatalo, A (2017). Muscle metabolic and neuromuscular determinants of fatigue during cycling in different exercise intensity domains. Journal of Applied Physicology (1985). 122 (3), pp. 446-459.
Sit-to-stand-and-walk from 120% knee height: A novel approach to assess dynamic postural control independent of lead-limb
Jones, GD, James, DC, Thacker, M and Green, DA (2016). Sit-to-stand-and-walk from 120% knee height: A novel approach to assess dynamic postural control independent of lead-limb. Journal of Visualized Experiments. 2016 (114).
Sit-to-walk and sit-to-stand-and-walk task dynamics are maintained during rising at an elevated seat-height independent of lead-limb in healthy individuals
Jones, GD, James, DC, Thacker, M, Jones, EJ and Green, DA (2016). Sit-to-walk and sit-to-stand-and-walk task dynamics are maintained during rising at an elevated seat-height independent of lead-limb in healthy individuals. Gait and Posture. 48 (July), pp. 226 - 229.