So I'd use accel x mass to get force but clearly I've done all this using g and not m/s2, is then use force - mass to get net force and then to calculate velocity it's accel x time interval which was 0.016 etc I'm thinking I now need to start all over again and convert the g to acceleration from...
Hi further to this and after several days I've realized that the accelerometer was measuring in units of g therefore after now extracting all of the data my acceleration readings having now converted this is m/s2 are looking pretty positive. I do however have another issue. I'm trying to...
Wow this is amazing...what I'm actually trying to do is compose the template in order that I can review 3 reps of a squat and 3 reps of a counter movement jump per subject on 2 consecutive testing days so it's clearly a reliability and validity study.
My intentions are to drop all the raw data...
Hey thanks so much I'm taking a look at this now and for the next few hours so I'll see what I can do. Would it be ok to convert the accelerometer values though would this not skew my results?
Hi and thank you very much for your time invested looking at this. The wearable was mounted on the wrist and during the squat the hands were placed on the shoulders crossed and during the CMJ they were placed on the hips. There will be some obscure data where movement occurred before and after...
Thank you so much, can I ask what you mean by the weights? The force plate was measuring at 1000hz and the wearable at 62hz so when I did the body mass calculations and any that required time intervals I used the body mass calculated from the force plate for the wearable data and I changed the...
Hi I attached my spreadsheet with all the equations within. Here you can see how I've worked out every variable and like before I trust the force plate data is correct it's the wearable acceleration data that I'm struggling to covert
Here is my spreadsheet, I'm currently working on one rep of the squat and counter movement jump so you should see 4 tabs:
Squat fp think this is correct
Squat w needs work as these are the calc I'm trying to figure out from acceleration magnitude alone
CMJ fp think this is correct
CMJ w as...
thank you for your response ill take some screen shots and send them to you now if that's ok...the first ones will be of the the force plate break down which I think is correct as I'm getting jump height and peak power etc which looks about right...it's the second tab I'm struggling with to...
Hi I'm currently on the data analysis section of my MSc and I'm after some guidance if possible please. Basically I've managed to figure out many variables from force plate data including displacement/net force/velocity/power etc however I'm trying to do the same with data collected from a...