Rating of perceived challenge as a measure of internal load for technical skill performance
Sharief Hendricks, Kevin Till, Jon L Oliver, Rich D Johnston, Matthew J Attwood, James Craig Brown, David Drake, Simon MacLeod, Stephen D Mellalieu, Ben Jones
British Journal of Sports Medicine May 2019, 53 (10) 611-613; DOI: 10.1136/bjsports-2018-099871