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Moderate to Substantial Inter-Rater Reliability in the Assessment of Cranial Bone Mobility Restrictions.

Author(s): Demers K, Morin C, Collette L, DeMont R

Background: The World Health Organization benchmarks for osteopathic training consider cranial osteopathy as an important manual skill. Studies of cranial manual therapy have exhibited poor reliability. The aim of this study was to investigate the inter-rat...

Article GUID: 33395535
Knee joint kinematics and neuromuscular responses in female athletes during and after multi-directional perturbations.

Author(s): Damavandi M, Mahendrarajah L, Dixon PC, DeMont R

Hum Mov Sci. 2020 Apr;70:102596 Authors: Damavandi M, Mahendrarajah L, Dixon PC, DeMont R

Article GUID: 32217214
Title:Knee joint kinematics and neuromuscular responses in female athletes during and after multi-directional perturbations.
Authors:Damavandi M,  Mahendrarajah L,  Dixon PC,  DeMont R
Link:https://www.ncbi.nlm.nih.gov/pubmed/32217214?dopt=Abstract
DOI:10.1016/j.humov.2020.102596
Category:Hum Mov Sci
PMID:32217214
Dept Affiliation: HKAP
1 Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, QC, Canada; Faculty of Sport Sciences, Hakim Sabzevari University, Sabzevar, Iran. Electronic address: mohsen.damavandi@concordia.ca.
2 Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, QC, Canada.
3 Department of Environmental Health, T.H. Chan School of Public Health, Harvard University, Boston, MA, USA.

Description:

Knee joint kinematics and neuromuscular responses in female athletes during and after multi-directional perturbations.

Hum Mov Sci. 2020 Apr;70:102596

Authors: Damavandi M, Mahendrarajah L, Dixon PC, DeMont R

Abstract

The purpose of this study was to investigate weight-bearing knee joint kinematic and neuromuscular responses during lateral, posterior, rotational, and combination (simultaneous lateral, posterior, and rotational motions) perturbations and post-perturbations phases in 30° flexed-knee and straight-knee conditions. Thirteen healthy female athletes participated. Knee joint angles and muscle activity of vastus lateralis (VL), vastus medialis (VM), biceps femoris (BF), semitendinosus (ST), lateral gastrocnemius (LG), and medial gastrocnemius (MD) muscles were computed. Knee abducted during lateral perturbations, whereas it adducted during the other perturbations. It was internally rotated during flexed-knee and externally rotated during straight-knee perturbations and post-perturbations. VL and VM's mean and maximum activities during flexed-knee perturbations were greater than those of straight-knee condition. BF's mean activities were greater during flexed-knee perturbations compared with straight-knee condition, while its maximum activities observed during combination perturbations. ST's maximum activities during combination perturbations were greatest compared with the other perturbations. LG and MG's activities were greater during straight-knee conditions. Compared with the perturbation phase, the mean and maximum muscles' activities were significantly greater during post-perturbations. The time of onset of maximum muscle activity showed a distinctive pattern among the perturbations and phases. The perturbation direction is an important variable which induces individualized knee kinematic and neuromuscular response.

PMID: 32217214 [PubMed - as supplied by publisher]