Posts tagged with ‘Statistics’

  • Estimating 1RM Using Load-Velocity Relationship

    By Mladen Jovanovic on 16/11/2012

    Estimating 1RM Using Load-Velocity Relationship This article is originally written and published for Kinetic website. I wanted to thank Rob Shugg for posting it and the whole Kinetic Performance company for creating such an amazing tool – PowerTool/GymAware. Also, I hope that the article will bring some more  food for thought and stimulate more work in this direction. There...

  • Interested in Learning Statistics and R? Start Here!

    By Mladen Jovanovic on 10/10/2012

    Interested in Learning Statistics and R? Start Here! Just a quick heads-up. I recently came across Coursera – a website offering FREE education: About Coursera We are a social entrepreneurship company that partners with the top universities in the world to offer courses online for anyone to take, for free. We envision a future where the top universities are...

  • How to Make a Readiness Monitoring Using a Simple Wellness Questionnaire [Part 3]

    By Mladen Jovanovic on 22/09/2012

    Although I promised I will show you how to visualize the data using screen cast – I won’t do it. I started taping the screen and it took me more than one hour to actually explain basics, without going into advanced techniques, like name references, dynamic graphs and dash boarding (which involves a lot of use of functions like…

  • How to Make a Readiness Monitoring Using a Simple Wellness Questionnaire [Part 2]

    By Mladen Jovanovic on 21/09/2012

    Since the wellness questionnaire is basically a nominal scale, the method of calculating difference might be simple subtraction (Difference = Current Score – Rolling Average). Other calculations that are based on ratio scales might involve percent change...

  • Couple of Insights From Explosive Lower Body Training With PowerTool/GymAware

    By Mladen Jovanovic on 22/07/2012

    As I have posted in the previous blog post I am currently playing with PowerTool/GymAware and aiming to increase my power output in squat jump, VJ and bench throw, along with trying to improve strength in squat and bench press using (a form of) dynamic effort method, during which I cut my set where my power drops below 90%…

  • Playing With Statistics [Part 5]

    By Mladen Jovanovic on 26/03/2012

    Playing With Statistics Although at the end of part 4 I mentioned I will talk about analysis of frequent tests like sRPE, HRV and other’s that are used for monitoring, I will not do that in this part. Maybe in part 6 because I am still ‘playing~struggling’with that one. What I want to talk today is data...

  • Playing With Statistics [Part 4]

    By Mladen Jovanovic on 19/03/2012

    Playing With Statistics In the last part I did analysis of the test using standard score. Now I am going to analyze re-test. Here are the test score for both test and re-test. TEST RE-TEST January 14th, 2012. February 25th, 2012. Player v30-15IFT Z-Score v30-15IFT Z-Score 1 19,5 -0,89 20 -1,44 2 19 -1,57 20 -1,44 3...

  • Playing With Statistics [Part 3]

    By Mladen Jovanovic on 19/03/2012

    Playing With Statistics After a general rant in part 1 and part 2 I am about to start actually doing some stats. Ok, the first 30-15IFT test we did was in January and here are the scores. TEST Player v30-15IFT Z-Score 1 19,5 -0,89 2 19 -1,57 3 19,5 -0,89 4 20,5 0,45 5 19,5 -0,89 6...

  • Playing With Statistics [Part 2]

    By Mladen Jovanovic on 18/03/2012

    After a general rant in part 1 I will now try to be more pragmatic. Please note that with these posts I am not trying to impress lab coats, but rather provide an example for my fellow coaches who deal with testing and assessment. Nothing fancy, just down to earth analysis.

  • Playing With Statistics [Part 1]

    By Mladen Jovanovic on 17/03/2012

    Recently I have seen EXCELLENT presentation from Stuart Cormack regarding monitoring in rugby. They utilize GPS, biochemical monitoring, sRPE and Neuromuscular fatigue testing and create light system that red-flags players that need more attention and are away from their usual variability, both to their individual baseline and team baseline (they utilize standard difference score and rolling averages over 4...