Author:
Johanna O'Day
Subject:
Engineering, Biology
Material Type:
Module
Level:
College / Upper Division, Graduate / Professional
Tags:
  • Biomechanics
  • Gait
  • Walking
    License:
    Creative Commons Attribution Non-Commercial Share Alike
    Language:
    English

    Ch.2 Problem 1

    Overview

    This is a homework problem for Chapter 2 that involves concepts including: step length, step frequency, walking speed, and Froude number, takes less than 15 minutes to complete by hand.

    2.1 (🕒✎)

    Step length, step frequency, walking speed, and Froude number

    1. Walking speed = step lengh x step frequency = 0.7m/step x 100 steps/min x 1 min/60 seconds = 1.17 m/s

    2. Fr = v**2/gl = 1.17**2/(9.81 x 0.9) = 0.16

    3. Fr at walk-to-run transition (2m/s) = 4=2**2/(9.81 x 0.9) = 0.45

    Step length, step frequency, walking speed, and Froude number 

    1. If your step length is 70 cm and your step frequency is 100 steps per minute, what is your walking speed in m/s?  
    2. If your leg length is 0.9m, what is your Froude number walking at this speed?
    3. The walk to run transition occurs at approximately 2.0 m/s. For a person with a leg length of 0.9m, what is the Froude number walking at this speed?