Dose–response effects of customised foot orthoses on lower limb kinematics and kinetics in pronated

NewsBot · May 4, 2013

Members do not see these Ads. Sign Up.
Dose–response effects of customised foot orthoses on lower limb kinematics and kinetics in pronated foot type
Scott Telfer, Mandy Abbott, Martijn M. Steultjens, James Woodburn
Journal of Biomechanics; In Press

Despite the widespread use of customised foot orthoses (FOs) for the pronated foot type there is a lack of reliable information on the dose–response effect on lower limb mechanics. This study investigated these effects in subjects with normal and pronated foot types. Customised FOs were administered to 12 participants with symptomatic pronated foot type and 12 age and gender matched controls. A computer-aided design (CAD) software was used to design nine FOs per participant with dose incrementally changed by varying only the rearfoot post angle. This was done in 2° increments from 6° lateral to 10° medial posting. A 3D printing method was used to manufacture the FOs. Quantification of the dose–response effect was performed using three-dimensional gait analyses for selected rearfoot and knee kinematics and kinetics. Under these experimental conditions, significant and linear effects of posting were seen for the peak (p<0.001) and mean (p<0.001) rearfoot eversions, peak (p=0.003) and mean (p<0.001) ankle eversion moments and peak (p=0.017) and mean (p=0.005) knee adduction moment variables. Group effects were observed for the peak (p=0.007) and mean (p=0.007) forefoot abduction and for the peak (p=0.007) knee adduction moment. A significant interaction between posting and group was seen for internal tibial rotation (p=0.004). These data indicate that a dose–response effect, with a linear trend for both the rearfoot and knee, exists for customised FOs used to treat pronated foot type.
Click to expand...

NewsBot · Oct 13, 2021

Is there a dose-response of medial wedge insoles on lower limb biomechanics in people with pronated feet during walking and running?
Brunna LibrelonCosta et al
Gait & Posture; Volume 90, October 2021, Pages 190-196

Highlights
•The dose-response effect was more evident in kinetics than in kinematics.
•Greater wedge angulations reduce ankle eversion for a longer period of stance.
•Knee adduction moment is increased for longer period with greater wedge angulations.
•In running, higher foot pronation was observed for 6 ° and 9 ° insoles in late stance.
Click to expand...

Background
Although the effects of medial wedge insoles on lower limb biomechanics have been investigated, information about the effects of different magnitudes of medial posting is still lacking.

Research question
What are the dose-response effects of medial wedge insoles with postings varying between 0 °, 3 °, 6 °, and 9 ° of inclination on the lower limb biomechanics during walking and running in individuals with pronated feet?

Methods
Sixteen participants with an FPI ≥ 6 were recruited. Four arch-supported insole conditions with varying degrees of medial heel wedge were tested (0°, 3°, 6°, and 9°). A 3D motion analysis system with force plates was used to obtain the kinetics and kinematics of walking and running at self-selected speeds. To compare the ankle, knee, and hip angles and moments among conditions, a time series analysis was performed using Statistical Parametric Mapping (SPM).

Results
A reduction in ankle eversion angle was observed during walking for all insoles. For running, the 6° and 9° insoles decreased the ankle eversion angle during early stance and increased this angle during the propulsive phase. A decrease in ankle eversion moment was observed in walking and running for 6° and 9° insoles. An increase in knee adduction moment occurred in walking and running for all insoles. For hip, the 6° and 9° insoles showed, during walking, a decrease in hip adduction angle and an increase in hip adduction and external rotation moments. For most variables, statistical differences were found for a greater period across the stance phase as the medial wedge increased, except for ankle eversion moment and hip external rotation moment during walking.

Significance
The biomechanical effects over the time series for many of the parameters increased with the addition of insole inclination, showing a dose-response effect of medial wedge insoles on the lower limb biomechanics during walking and running in adults with excessive foot pronation.
Click to expand...

NewsBot · Jan 30, 2023

Immediate effects of forefoot wedges on multi-segment foot kinematics during jogging in recreational runners with a symptomatic pronated foot
Xianyi Zhang, Benedicte Vanwanseele
Front Physiol. 2023 Jan 9;13:1064240

Background: Foot orthoses (FOs) have been used to alter lower limb kinematics and kinetics in pronated feet. A clear relationship between FOs' features, e.g., the amount of wedging and support, and the corresponding biomechanical responses is vital for the design and prescription of FOs. In this study, we sought to determine if changing the level of the forefoot wedge would cause a linear response in the multi-segment foot kinematics during jogging, and if this effect would be enhanced by an arch support. Methods: Ten pairs of 3D printed FOs with five levels of forefoot wedges and two levels of arch supports were tested on 12 recreational runners with a symptomatic pronated foot. Multi-segment foot kinematic data during jogging was measured using the Oxford Foot Model. Two-way ANOVAs were performed to examine the main effect of the forefoot wedge and arch support, as well as their interaction on peak joint angles. Statistical parametric mapping and paired-t tests were used to identify differences in the foot kinematic traces and the joint range of motion (ROM) between each FO and the control, respectively. Results: Linear main effects for the forefoot wedge level were found in the forefoot peak dorsiflexion, eversion and rearfoot peak dorsiflexion of jogging. FOs with a medial forefoot wedge caused an average of 2.5° reduction of the forefoot peak abduction during jogging. Furthermore, forefoot wedges showed an opposite effect on the sagittal ROM of the forefoot and rearfoot. Adding an arch support did not improve the kinematic performance of a forefoot wedge during jogging. Conclusion: This study highlights a linear dose-response effect of a forefoot wedge on forefoot kinematics during jogging, and suggests using a medial forefoot wedge as an anti-pronator component for controlling forefoot motion of a pronated foot.
Click to expand...

Dose–response effects of customised foot orthoses on lower limb kinematics and kinetics in pronated

NewsBot The Admin that posts the news.

NewsBot The Admin that posts the news.

NewsBot The Admin that posts the news.

Effects of Diuretics on Foot Edema in Patients with Cancer

Side effects of gel nail polish

Effects of the Short Foot Exercise

Effects of Limitation of Movement of the First Metatarsophalangeal Joint

Effects of flat-flexible shoes on lower limb joint kinetics and kinematics in gait

Effects of fatigue on the plantar fascia

It’s Gotta Be the Shoes! Performance Enhancement Effects of Novel Brand Advertising

Share This Page

Dose–response effects of customised foot orthoses on lower limb kinematics and kinetics in pronated

NewsBot The Admin that posts the news.

NewsBot The Admin that posts the news.

NewsBot The Admin that posts the news.

Effects of Diuretics on Foot Edema in Patients with Cancer

Side effects of gel nail polish

Effects of the Short Foot Exercise

Effects of Limitation of Movement of the First Metatarsophalangeal Joint

Effects of flat-flexible shoes on lower limb joint kinetics and kinematics in gait

Effects of fatigue on the plantar fascia

It’s Gotta Be the Shoes! Performance Enhancement Effects of Novel Brand Advertising

Share This Page

Useful Searches