Evidence summary
Reaction time contributes to Speed performance but is only the first component of the start. Competition studies separate reaction from subsequent climbing phases, showing why start analysis should measure the first sequence rather than only pad departure.
Competition time-motion research directly measures reaction and route phases, though the best training intervention for reaction is less established.
Separating reaction from climbing
A race clock contains multiple components. Time-motion studies can isolate reaction, early acceleration and later route phases, preventing analysts from attributing every fast start to reaction alone.
Small gains, large risk
Elite reaction differences can be small relative to total route time. False-start risk means athletes cannot simply anticipate earlier and earlier.
Competition evidence
Analysis of elite World Cup performances has compared reaction, route phases and errors in real racing, giving the evidence strong ecological relevance.
Training inference
Variable start signals and first-section timing are reasonable tools, but research does not establish one universally superior Speed reaction-training protocol.
Research versus rules
Measured reaction is a performance variable; a false-start decision is a rules question. Governing procedures always supersede academic summaries in competition.
Sources used for this page
- A Time-Motion and Error Analysis of Speed Climbing in the 2019 IFSC Speed Climbing World Cup (2022) — Competition video/time-motion analysis. Analyzed 384 competition performances, phases, errors and reaction time.
- Performance indicators in speed climbing: insights from the literature supplemented by a video analysis and expert interviews (2023) — Review + video analysis + expert interviews. Speed-specific synthesis of physical and tactical performance factors.
Evidence is summarized, not reproduced. Follow the original paper for exact methods, statistics, limitations and author conclusions.
Continue in the evidence center
See the Evidence Map, Research Bibliography and individual study summaries.