What is the Yo-Yo Test?

What is the Yo-Yo test?

• The Yo-Yo test was first introduced to the Indian cricket team during Virat Kohli’s fitness-focused captaincy reign. Developed by Danish football physiologist Jens Bangsbo, it is a “maximal aerobic endurance fitness test, involving running between markers placed 20 metres apart, at increasing speeds, until exhaustion.”
• Players are given scores on the basis of how many levels they are able to clear. Previously, the minimum score set by the BCCI to pass the test was 17 (increased from 16.1).

Dexa scans

• Dexa scans were recommended to the BCCI and the National Cricket Academy (NCA) as far back as 2011 because of a significant increase in players’ workloads with the introduction of T20 cricket and professionalisation of the game. 
• Through Dexa tests, the trainers will be able to measure body fat percentage, lean muscle mass, water content and bone density.
• It helps to understand where the fat is and whether the training methods are yielding the result.

Q1) Which type of ball is used in professional cricket?

At present in professional cricket there are 3 types of cricket balls used in test matches; i.e. Kookaburra, Dukes and SG.

Source: The Yo-Yo test and Dexa scan: How the BCCI will judge players’ fitness for selection

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