PT - JOURNAL ARTICLE AU - Sharief Hendricks AU - Kevin Till AU - Jon L Oliver AU - Rich D Johnston AU - Matthew J Attwood AU - James Craig Brown AU - David Drake AU - Simon MacLeod AU - Stephen D Mellalieu AU - Ben Jones TI - Rating of perceived challenge as a measure of internal load for technical skill performance AID - 10.1136/bjsports-2018-099871 DP - 2019 May 01 TA - British Journal of Sports Medicine PG - 611--613 VI - 53 IP - 10 4099 - http://bjsm.bmj.com/content/53/10/611.short 4100 - http://bjsm.bmj.com/content/53/10/611.full SO - Br J Sports Med2019 May 01; 53