# Posts tagged with ‘Statistics’

• ### UPDATE: Percent-based to velocity-based converter 2.0

I have updated Percent-based to velocity-based converter to include conversion from velocity-based to percent-based approach using load-velocity profile and %1RM-max reps profile. This is important since it allows coaches to get easier ‘grip’ on velocity-based approach and how it could be used and converted.Here is the screen shot

• ### Percent-Based to Velocity-Based Converter 2.0 [Excel Workbook + Video Tutorial]

“Nothing Is More Practical Than A Good Theory” – In the following video I am explaining how to use Excel converter to convert percent-based programs to velocity-based programs based on lifters load-velocity profile for a given movement.

• ### How to Track 1RM Without Actually Testing It?

Introduction – There are two main methods for estimating 1RM of an exercise: (1) to build up to true 1RM lift and (2) to estimate 1RM from reps-to-(technical)-failure  with sub-max weight using various formulas and tables.

• ### Optimizing Groups for Small Sided Games (SSGs)

In the following video I will show you how to: a) Calculate normal scores for any test/statistic (percentiles & z-scores) and the difference between them; b) Calculate composite scores using weighting factors and normal scores; c) Use one great Excel tool – SOLVER to provide optimized solution for groups;

• ### Analyzing Time-Series of Individual Data [Part2]: Using Harmful/Trivial/Beneficial Chances

Just a quick update – after a comment by John Fitzpatrick (@JFitz138) on the use of Will Hopkins’s approach of calculating chances I decided to give it a shot. For a Typical Error (used together with SWC to calculate chances) I used SD of the Rolling Average.

• ### Analyzing Time-Series of Individual Data

If you haven’t been living in a cave for the last couple of years, you definitely noticed an increase in data collection, data mining and visualization. HRV tracking, jump output tracking, estimating 1RMs from velocity-load data, game statistics, performance analysis, various testing statistics, body weight, Run Keeper, Run Tracker, and all that quantified-self movement.

• ### Some Great Findings and Ideas From Velocity-Based Strength Training

Some great findings and ideas from velocity-based strength training – I have been thinking more and more about velocity-based lifting recently as a method of prescribing load and volume for an individual. I have wrote couple of blog posts and article on this topic that you might want to read first:

• ### Statistics 101: Two-Sample Hypothesis Testing

I am slowly going through Statistical Analysis with Excel book and I am making simulation worksheets to understand the concepts. I have created the the worksheet with two populations and two pulled samples to get my mind on standard error of the difference between means which is used in Two-Sample Hypothesis Testing. I have used both Z-Test (when populations…