Chapter 2 Correlation

Correlation is the relationship (association) between two variables. In sport sciences we can see positive relationships between lean muscle mass and 1-repetition maximum squat, in contrast, there is an inverse relationship, a negative relationship between body fat and vertical jump performance. Below we will look into two data set. The first is an association between percentage of body fat and vertical jump performance, and the second is an association within kinetic parameters of the vertical jump and vertical jump height.

library(readxl)
Malaysia_Kinestats <- read_excel("Malaysia_Kinestats.xlsx")
View(Malaysia_Kinestats)
attach(Malaysia_Kinestats)

cor(JH,mRSI)

## [1] 0.8084541