Forefoot angle determines duration and amplitude of pronation during walking.
نویسندگان
چکیده
The biomechanical mechanisms that link foot structure to injuries of the musculoskeletal system during gait are not well understood. This study had two parts. The purpose of part one was to determine the relation between clinical rearfoot and forefoot angles and foot angles as they make contact with the ground. The purpose of part two was to determine the effects of large vs. moderate values of both forefoot and rearfoot inversion angles at foot contact on foot kinematics. Clinical foot angle, the relationship between the foot and an axis extrinsically defined relative to the ground, was calculated from digital photographs taken in a prone position. During three speeds of over-ground walking, we measured frontal plane rearfoot and forefoot angle relative to the ground at foot contact, and the following stance phase kinematic measures: amplitude of rearfoot and forefoot eversion, duration of rearfoot and forefoot eversion, and duration between heel-off and onset of rearfoot and forefoot inversion. We found that the clinical forefoot angle predicted the forefoot angle at foot contact. Individuals with a large inversion forefoot angle at contact also had greater amplitude of forefoot eversion and everted longer during stance. We discuss the possible mechanisms for the increased risk of injury to the hip reported for individuals that have a large clinical forefoot angle in non-weight bearing. Equally important is the finding that rearfoot angle at contact did not predict the motions of the rearfoot or forefoot during stance.
منابع مشابه
The Role of Tibialis Posterior on Foot Kinematics during Walking
Many overuse injuries of the lower extremity are associated with excessive/prolonged pronation of the foot during gait. Pronation is a complex motion and its quantification during gait has mainly been limited to rearfoot motion. However, foot pronation also occurs across the more distal joints of the foot. Thus it is pertinent to quantify both rearfoot and forefoot motion when assessing pronati...
متن کاملThe effect of forefoot and arch posting orthotic designs on first metatarsophalangeal joint kinematics during gait.
STUDY DESIGN Repeated-measures analysis of variance. OBJECTIVE To examine the effect of 2 different orthotic posting designs on first metatarsophalangeal (first MTP) joint kinematics during gait. BACKGROUND Common orthotic designs used to control abnormal pronation incorporate the use of a medial post in the forefoot and/or rearfoot locations. Although this design may favorably alter rearfo...
متن کاملPlantar foot pressures after the augmented low dye taping technique.
CONTEXT Taping and orthoses are frequently applied to control excessive foot pronation to treat or prevent musculoskeletal pain and injury of the lower limb. The mechanism(s) by which these devices bring about their clinical effects are at best speculative and require systematic evaluation. OBJECTIVE To determine the initial effect of the augmented low Dye taping technique (ALD) on plantar fo...
متن کاملThe Effects of Changing Footstrike Pattern on the Amplitude and Frequency Spectrum of Ground Reaction Forces During Running in Individuals With Pronated Feet
Background: The current study aimed to evaluate the effects of barefoot and shod running with two different styles on ground reaction force-frequency content in recreational runners with low arched feet. Methods: The statistical sample of this research was 13 males with PF (mean±SD age: 26.2±2.8 y; height: 176.1±8.4 cm; weight: 78.3±14.3 kg). A force plate (Bertec, USA) with a sample rate of 1...
متن کاملThe effect of foot orthotics and gait velocity on lower limb kinematics and temporal events of stance.
Research on foot orthotics is primarily restricted to their effect on the lower limb during running. Research is limited, however, on the potential of foot orthotics to control the mechanics of the foot during walking. The purpose of this study was to examine the interactive effect of foot orthotics and two walking speeds on the angular changes at the rearfoot, ankle, and knee, and temporal eve...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Gait & posture
دوره 38 1 شماره
صفحات -
تاریخ انتشار 2013