A biomechanical assessment of the acute hallux abduction manipulation intervention

NewsBot · Jan 10, 2020

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A biomechanical assessment of the acute hallux abduction manipulation intervention
LiangliangXiang et al
Gait & Posture; Volume 76, February 2020, Pages 210-217

Highlights
•Arch height index increased while walking with toe manipulation.
•Manipulation would change lower limb inter-segmental joint angles.
•Hallux valgus lead to weak propulsive function.
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Background
Naturally aligned toes, particularly hallux, have reported with gripping functions during locomotion, thus expanding the forefoot loading area.

Research question
The purpose of this study was aimed to investigate the influence of hallux abduction manipulation on the foot plantar pressure distribution and inter-segment kinematic alterations.

Methods
Thirteen subjects participated in this toe manipulation study. A Footscan® pressure plate and Vicon motion capture system were utilized for the measurement of plantar pressure distribution and lower extremity and foot inter-segment kinematics during walking and running. Paired-sample t-test from statistical parametric mapping 1d was used to check the kinematic significance.

Results
Peak pressure in third metatarsal (M3) increased significantly during walking under manipulation. Contact area increased in second metatarsal (M2) with manipulation during running. Peak pressure and pressure-time integral illustrated significant increases in M3, and the maximum force and impulse in fourth metatarsal (M4) increased significantly. Arch height index increased while walking with toe manipulation. The foot progression angle in the frontal plane showed significant decrease in mid-swing phase during walking and significant increase in mid-stance phase during running. The hallux relative to forefoot angles presented higher axial rotation in the frontal plane.

Significance
Findings form this study showed centrally and laterally redistributed foot loadings and increased forefoot inter-segment flexibility with manipulation, which may be used as baseline to evaluate toe-manipulation interventions in foot disorders, specifically hallux valgus deformity.
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NewsBot · Mar 19, 2020

Multi-Segmental Motion in Foot during
Counter-Movement Jump with Toe Manipulation
Liangliang Xiang et al
Appl. Sci. 2020, 10, 1893

Human toes are crucial for vertical jumping performance. The purpose of this study is
to investigate the acute effect of hallux abduction manipulation on foot inter-segment kinematic
alterations and plantar loading redistribution during the countermovement jump (CMJ). Thirteen
participants were recruited to join in this experiment, for the collection of the foot inter-segment
kinematics and plantar pressure data. During the take-off phase, the contact area presented a
significant increase while the pressure-time integral decreased in the second metatarsal (M2), whilst
the third metatarsal (M3) and fourth metatarsal (M4) decreased significantly in pressure-time integral
with Toe-Manipulation (TM). During the landing phase, maximum force and peak pressure were
smaller in the big toe (BT) after hallux abduction manipulation. HXFFA (hallux-forefoot angle)
showed a greater pronation after manipulation in the frontal plane (0%–26% and 50%–100%) with
p = 0.002 and p < 0.001. In the transverse plane, the smaller adductions were found during 62%–82%
in take-off and 62%–91% in landing (p = 0.003 and p < 0.001). There was a redistributed plantar
loading during the landing phase from the medial to lateral forefoot. However, a reduced hallux
range of motion in the TM session was exhibited, compared to Non-Toe-Manipulation (NTM).
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A biomechanical assessment of the acute hallux abduction manipulation intervention

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A biomechanical assessment of the acute hallux abduction manipulation intervention

NewsBot The Admin that posts the news.

NewsBot The Admin that posts the news.

A narrative review on the tests used in biomechanical functional assessment of the foot and leg

HELP with biomechanical assessment form

20 Minute Biomechanical assessment

Biomechanical Assessment of Work Footwear

Reliability of clinical biomechanical assessments

The 10 min Biomechanical assessment - what are the most important things to assess?

Biomechanical Assessment Forms

Share This Page

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