Creat membership Creat membership
Sign in

Forgot password?

Confirm
  • Forgot password?
    Sign Up
  • Confirm
    Sign In
Creat membership Creat membership
Sign in

Forgot password?

Confirm
  • Forgot password?
    Sign Up
  • Confirm
    Sign In
Collection

toTop

If you have any feedback, Please follow the official account to submit feedback.

Turn on your phone and scan

home > search >

Relationship between ankle plantar flexor force steadiness and postural stability on stable and unstable platforms

Author:
Hirono, Tetsuya  Ikezoe, Tome  Taniguchi, Masashi  Yamagata, Momoko  Miyakoshi, Kosuke  Umehara, Jun  Ichihashi, Noriaki  


Journal:
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY


Issue Date:
2020


Abstract(summary):

Purpose This study was aimed at determining the relationship between ankle plantar flexor force steadiness and postural control during single leg standing on stable and unstable platforms. Methods For the thirty-three healthy participants, force steadiness, at target torques of 5%, 20%, and 50% of the maximum voluntary torque (MVT) of the ankle plantar flexors, was measured. Force steadiness was calculated as the coefficient of variation of force. Single leg standing on stable and unstable platforms was performed using the BIODEX Balance System SD. The standard deviation of the anteroposterior center of pressure (COP) displacements was measured as the index for postural control. During both measurements, muscle activities of the soleus were collected using surface electromyography. Results On the stable platform, the COP fluctuation significantly correlated with force steadiness at 5% of MVT (r =3D 0.512, p =3D 0.002). On the unstable platform, the COP fluctuation significantly correlated with force steadiness at 20% of MVT (r =3D 0.458, p =3D 0.007). However, the extent of muscle activity observed for a single leg standing on both stable and unstable platforms was significantly greater than the muscle activity observed while performing force steadiness tasks at 5% and 20% of MVT, respectively. Conclusion Postural stability during single leg standing on stable and unstable platforms may be related to one's ability to maintain constant torque at 5% and 20% of MVT regardless of the muscle activity. These results suggest that the required abilities to control muscle force differ depending on the postural control tasks.


Page:
1075---1082


Similar Literature

Submit Feedback

This function is a member function, members do not limit the number of downloads