Field notes
Mental rehearsal in lucid dreams: training without moving
A small darts pilot: what was measured, why its findings are preliminary, and why they do not establish rehabilitation benefits.

Motor rehearsal in a lucid dream is a research question, not a substitute for physical training or rehabilitation.
Schädlich, Erlacher and Schredl (2017), original abstract describes a laboratory pilot with evening and morning dart throwing, not a 2018 trial of gymnasts and musicians.
Lucid participants were split by distractions: few, 4; many, 5; physical practice, 9; control, 9. Only the four-person low-distraction subgroup improved significantly, by 18%. The authors call the finding preliminary.
A small pilot establishes neither synaptic strengthening, zero energy cost, Olympic-team adoption nor transfer to complex or dangerous skills.
Benefit for stroke rehabilitation, Parkinson’s or paralysis is not established by this study. Do not replace rehabilitation, medicines or coaching by dreams.
If lucid dreams already occur, record rehearsal content and evaluate skills safely while awake. There is no required two-to-three lucid dreams weekly or twentieth-night milestone. Protect sleep.
Sources and context
Links lead to studies, first-person accounts or edition information. The text distinguishes an abstract, secondary quotation or book description from a full original. The author's observations are not clinical evidence or a guarantee; no independent clinical review is claimed.
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