A Study of the Sports Shoes' insole Structures

that Affect Decreasing Ground Reaction Force on Foot of Flat Foot Pattern

Wanwipa Thongsongchan

Wanlaya Homsuwan

Sunsri Shanokprasith

Mahidol Wittayanusorn School, Thailand

A Study of the Sports Shoes' insole Structures that Affect Decreasing Ground Reaction Force on Foot of Flat Foot

Pattern

Introduction

Foot’s structures consist of

3 main components

- Forefoot

- Midfoot

- hindfoot or rearfoot

Normal foot Flat foot High arch

A Study of the Sports Shoes' insole Structures that Affect Decreasing Ground Reaction Force on Foot of Flat Foot

Pattern

Introduction

Ratio of pronation symptom in boys

27%

0%

73%overpronation

normal

supinationD-maq, 2547-2548

A Study of the Sports Shoes' insole Structures that Affect Decreasing Ground Reaction Force on Foot of Flat Foot

Pattern

Introduction

Ratio of pronation symptom in girls

39%

60%

1%

overpronation

normal

supinationD-maq, 2547-2548

A Study of the Sports Shoes' insole Structures that Affect Decreasing Ground Reaction Force on Foot of Flat Foot

Pattern

Introduction

Functions of sports shoes

-absorb the ground reaction force on feet

-protect the feet from pain during exercising

A Study of the Sports Shoes' insole Structures that Affect Decreasing Ground Reaction Force on Foot of Flat Foot

Pattern

Introduction

A Study of the Sports Shoes' insole Structures that Affect Decreasing Ground Reaction Force on Foot of Flat Foot

Pattern

Introduction

Purpose

1. To compare the ground reaction force between on normal foot and on flat foot .

2. Study the sports shoes’ insole structure which affects decreasing the ground reaction force on foot of flat foot pattern by using Force Platform for evaluating that force

A Study of the Sports Shoes' insole Structures that Affect Decreasing Ground Reaction Force on Foot of

Flat Foot Pattern

Research boundary

Study i n Mahidol University students having the Body Mass Index (BMI) during 18 to 23

kilograms /square meters , exercising by running - 1015 kilometer per week for 3 months

Age - 1825: years old

A Study of the Sports Shoes' insole Structures that Affect Decreasing Ground Reaction Force on Foot of Flat Foot

Pattern

1. To study the relationship of sports shoes’ insole structure in absorbing and spreading the ground reaction force on flat foot

2. Analyze the data and conclude the method to solve the problem for people having feet of flat foot pattern

A Study of the Sports Shoes' insole Structures that Affect Decreasing Ground Reaction Force on Foot of Flat Foot

Pattern

Variable

Sports shoes' insole structures

Ground reaction force

Age Body Mass IndexVelocity Strength ness

Independent variable

Dependent variable

Controlled variable

A Study of the Sports Shoes' insole Structures that Affect Decreasing Ground Reaction Force on Foot of Flat Foot

Pattern

Definitions

Force The ground reaction force that impact on subjects’ left foot when it contracts Force Platform at the fix point. In this research we will study the vertical ground reaction force only.

The velocity that the subjects have to run on Force Platform is equal to 3.5 meter/sec

A Study of the Sports Shoes' insole Structures that Affect Decreasing Ground Reaction Force on Foot of Flat Foot

Pattern

Controlled velocity

Definitions

The distance that the subjects run on Force Platform is equal to 4.5 meter

The pattern of foot segregated by analyzing the foot’s photographs to the lowered arch group and flat arch group

A Study of the Sports Shoes' insole Structures that Affect Decreasing Ground Reaction Force on Foot of Flat Foot

Pattern

Controlled distance

Flat foot

Related Research

Effects of Shoe Inserts and Heel Height on Foot Pressure, Impact Force, and Perceived Comfort During Walking. (Yung-Hui L and Hong WH.,2005)

Biomechanical aspects of running. (Nigg BM, 1986)

A Study of the Sports Shoes' insole Structures that Affect Decreasing Ground Reaction Force on Foot of Flat Foot

Pattern