# Homework Help: Hip joint

1. Dec 4, 2006

### Michaelcarson11

1. The problem statement, all variables and given/known data
Can anybody help me calculate the approximate force/ stress on a hip joint during walking and/or running
Any help is greatly appreciated.

2. Relevant equations

3. The attempt at a solution

2. Dec 4, 2006

### Staff: Mentor

What are your initial thoughts? We need to see something from you on questions #2 and #3 in order to help you. What forces and timescales are involved?

3. Dec 5, 2006

### Michaelcarson11

All i want to find out is the approximate stress for each step that a person takes.

I need to keep it quite simple for a presentation that i am doing so i was going to try and estimate the force that is produced on impact with the floor and then divide that by the approximate cross-sectional area to find the stress.

I just need some help with the approximations.

Any help appreciated

4. Dec 5, 2006

### quickslant

well the actual force would be hard to approximate because it varies from person to person due to mass change.. at least that is what i would think