Walking beyond preferred transition speed increases muscle activations with a shift from inverted pendulum to spring mass model in lower extremity

Yo Shih, Yi Chun Chen, Yin Shin Lee, Ming Sheng Chan, Tzyy Yuang Shiang

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Background: The triggers for the transition of gait from walking to running during increasing speed locomotion have been attributed to an energy conservation strategy or a relief of excessive muscle activation. Walking beyond the preferred transition speed (PTS) has been proposed as an exercise protocol for boosting energy consumption. However, the biomechanical factors involved while this protocol is used have not been investigated. Thus, this study investigated the difference between walking and running below, during, and beyond the PTS from a biomechanical perspective. Methods: Sixteen healthy male participants were recruited. After determination of their PTS, five speeds of walking and running were defined. Kinematic data, including center-of-mass (COM) displacement, COM acceleration, and electromyography (EMG) data of rectus femoris (RF), biceps femoris, gastrocnemius (GAS), and tibialis anterior were collected at the five speeds for both walking and running. Result: The vertical COM displacement and acceleration in running were significantly larger than those in walking at all five speeds (p < 0.05). EMG signals of the two antigravity muscles, RF and GAS, demonstrated a significant higher activation in walking than that in running at the speed beyond PTS (p < 0.05). Conclusion: The larger energy consumption in walking than that in running beyond the PTS may be attributed to the high activation of lower-extremity muscles. The smaller vertical COM displacements and accelerations exhibited when participants walked beyond the PTS rather than ran did not indicate adverse effects of using walking beyond the PTS as an exercise prescription for boosting energy consumption.

Original languageEnglish
Pages (from-to)5-10
Number of pages6
JournalGait and Posture
Volume46
DOIs
Publication statusPublished - 2016 May 1

Fingerprint

Running
Walking
Lower Extremity
Muscles
Quadriceps Muscle
Electromyography
Exercise
Locomotion
Gait
Biomechanical Phenomena
Prescriptions
Healthy Volunteers

Keywords

  • Acceleration
  • Center of mass
  • Electromyography

ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine
  • Rehabilitation

Cite this

Walking beyond preferred transition speed increases muscle activations with a shift from inverted pendulum to spring mass model in lower extremity. / Shih, Yo; Chen, Yi Chun; Lee, Yin Shin; Chan, Ming Sheng; Shiang, Tzyy Yuang.

In: Gait and Posture, Vol. 46, 01.05.2016, p. 5-10.

Research output: Contribution to journalArticle

@article{63117d5bae2949cd8478092fc1b13f0c,
title = "Walking beyond preferred transition speed increases muscle activations with a shift from inverted pendulum to spring mass model in lower extremity",
abstract = "Background: The triggers for the transition of gait from walking to running during increasing speed locomotion have been attributed to an energy conservation strategy or a relief of excessive muscle activation. Walking beyond the preferred transition speed (PTS) has been proposed as an exercise protocol for boosting energy consumption. However, the biomechanical factors involved while this protocol is used have not been investigated. Thus, this study investigated the difference between walking and running below, during, and beyond the PTS from a biomechanical perspective. Methods: Sixteen healthy male participants were recruited. After determination of their PTS, five speeds of walking and running were defined. Kinematic data, including center-of-mass (COM) displacement, COM acceleration, and electromyography (EMG) data of rectus femoris (RF), biceps femoris, gastrocnemius (GAS), and tibialis anterior were collected at the five speeds for both walking and running. Result: The vertical COM displacement and acceleration in running were significantly larger than those in walking at all five speeds (p < 0.05). EMG signals of the two antigravity muscles, RF and GAS, demonstrated a significant higher activation in walking than that in running at the speed beyond PTS (p < 0.05). Conclusion: The larger energy consumption in walking than that in running beyond the PTS may be attributed to the high activation of lower-extremity muscles. The smaller vertical COM displacements and accelerations exhibited when participants walked beyond the PTS rather than ran did not indicate adverse effects of using walking beyond the PTS as an exercise prescription for boosting energy consumption.",
keywords = "Acceleration, Center of mass, Electromyography",
author = "Yo Shih and Chen, {Yi Chun} and Lee, {Yin Shin} and Chan, {Ming Sheng} and Shiang, {Tzyy Yuang}",
year = "2016",
month = "5",
day = "1",
doi = "10.1016/j.gaitpost.2016.01.003",
language = "English",
volume = "46",
pages = "5--10",
journal = "Gait and Posture",
issn = "0966-6362",
publisher = "Elsevier",

}

TY - JOUR

T1 - Walking beyond preferred transition speed increases muscle activations with a shift from inverted pendulum to spring mass model in lower extremity

AU - Shih, Yo

AU - Chen, Yi Chun

AU - Lee, Yin Shin

AU - Chan, Ming Sheng

AU - Shiang, Tzyy Yuang

PY - 2016/5/1

Y1 - 2016/5/1

N2 - Background: The triggers for the transition of gait from walking to running during increasing speed locomotion have been attributed to an energy conservation strategy or a relief of excessive muscle activation. Walking beyond the preferred transition speed (PTS) has been proposed as an exercise protocol for boosting energy consumption. However, the biomechanical factors involved while this protocol is used have not been investigated. Thus, this study investigated the difference between walking and running below, during, and beyond the PTS from a biomechanical perspective. Methods: Sixteen healthy male participants were recruited. After determination of their PTS, five speeds of walking and running were defined. Kinematic data, including center-of-mass (COM) displacement, COM acceleration, and electromyography (EMG) data of rectus femoris (RF), biceps femoris, gastrocnemius (GAS), and tibialis anterior were collected at the five speeds for both walking and running. Result: The vertical COM displacement and acceleration in running were significantly larger than those in walking at all five speeds (p < 0.05). EMG signals of the two antigravity muscles, RF and GAS, demonstrated a significant higher activation in walking than that in running at the speed beyond PTS (p < 0.05). Conclusion: The larger energy consumption in walking than that in running beyond the PTS may be attributed to the high activation of lower-extremity muscles. The smaller vertical COM displacements and accelerations exhibited when participants walked beyond the PTS rather than ran did not indicate adverse effects of using walking beyond the PTS as an exercise prescription for boosting energy consumption.

AB - Background: The triggers for the transition of gait from walking to running during increasing speed locomotion have been attributed to an energy conservation strategy or a relief of excessive muscle activation. Walking beyond the preferred transition speed (PTS) has been proposed as an exercise protocol for boosting energy consumption. However, the biomechanical factors involved while this protocol is used have not been investigated. Thus, this study investigated the difference between walking and running below, during, and beyond the PTS from a biomechanical perspective. Methods: Sixteen healthy male participants were recruited. After determination of their PTS, five speeds of walking and running were defined. Kinematic data, including center-of-mass (COM) displacement, COM acceleration, and electromyography (EMG) data of rectus femoris (RF), biceps femoris, gastrocnemius (GAS), and tibialis anterior were collected at the five speeds for both walking and running. Result: The vertical COM displacement and acceleration in running were significantly larger than those in walking at all five speeds (p < 0.05). EMG signals of the two antigravity muscles, RF and GAS, demonstrated a significant higher activation in walking than that in running at the speed beyond PTS (p < 0.05). Conclusion: The larger energy consumption in walking than that in running beyond the PTS may be attributed to the high activation of lower-extremity muscles. The smaller vertical COM displacements and accelerations exhibited when participants walked beyond the PTS rather than ran did not indicate adverse effects of using walking beyond the PTS as an exercise prescription for boosting energy consumption.

KW - Acceleration

KW - Center of mass

KW - Electromyography

UR - http://www.scopus.com/inward/record.url?scp=84959208113&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84959208113&partnerID=8YFLogxK

U2 - 10.1016/j.gaitpost.2016.01.003

DO - 10.1016/j.gaitpost.2016.01.003

M3 - Article

C2 - 27131169

AN - SCOPUS:84959208113

VL - 46

SP - 5

EP - 10

JO - Gait and Posture

JF - Gait and Posture

SN - 0966-6362

ER -