Why The Concept of Biomotor Abilities is Bullshit
In my opinion, biomotor abilities are ‘dimension reduction’ of the complex perceptual-motor space. Suppose we perform 500 various tests of performance for at least 5000 athletes.
Tag: R
How to Analyze Training Load and Monitoring Data?
In this video I am explaining two methods to deal with missing values and why you should pay attention to the way you are aggregating data (daily, team averages, body soreness, etc).
Shuttle Run Beep Test Improvement & New Test
Few days ago, I spoke with Cameron Josse, who is Director of Sports Performance at DeFranco’s Gym, regarding simple (or should I say, Minimum Viable Program – MVPr) endurance test for football athletes. I have direct…
To Turf or Not to Turf, That is the Question [Part 2]: Applications
In this video I am deploying the model to make the decision between 5 variations of weekly plan. The goal is to minimize the morning soreness on the day of the game.
To Turf or Not to Turf, That is the Question – Part 1
In this video I am presenting my “solution” to the problem and provide fake data set, as well as R code for analyzing the data. Having decent predictive model can help us run different optimization algorithms to find…
Netflix Prize and Injury Prediction Prize
The Netflix Prize was an open competition for the best collaborative filtering algorithm to predict user ratings for films, based on previous ratings without any other information about the users or films, i.e. without t…
Thoughts on Injury Prediction
In the following article, I am discussing the famous “J” curve in injury prediction, as well as simulate some data to show how that curve is estimated. I also show the distinction between association and prediction, …
The Dowry Problem
In this video I am solving the famous dowry problem using the simulation in R. It is interesting to see how we can test the assumptions and heuristic easily with simulations.
Individualizing Training Using Clustering Algorithms
The goal of this blog post is to present simple solution to “grouping” individuals based on their needs, characteristics and/or goals.
Masked Relationships and Multicollinearity
In this video and R workbook I am “playing” with linear regression and I am trying to explain the concept of “controlling” for one variable (this is common in statistics, but I had hard time understanding it unti…