Key result
Intermittent alternating cold and hot hand exposures fail to improve finger temperature responsiveness to cold.
Why the study?
It was hypothesized that prolonged intermittent hand exposures to transient contrast thermal stimuli would enhance the finger cold-induced vasodilatation response during localized cooling.
Does a 5-week regimen of intermittent hand exposures to alternating cold and hot stimuli improve finger cold-induced vasodilatation response in healthy men?
Does a 5-week regimen of intermittent hand exposures to alternating cold and hot stimuli improve finger cold-induced vasodilatation response in healthy men?
Absolute Event Rate: 10.9% vs 10.8%
p-value: p=0.79
Five weeks of intermittent hand exposures to alternating cold and hot stimuli do not improve finger temperature responsiveness or flow-mediated dilatation to sustained localized cold.
No takes yet. Share an insight, caveat, or question.
No support for alternating hand stimuli to enhance cold tolerance in healthy men; leaves open efficacy of alternative protocols or populations.
Kölegård et al. (2024) studied Healthy (n=8). Intermittent hand exposures to alternating cold and hot stimuli vs. Contralateral dominant hand was evaluated on Average finger skin temperature during a 30-min hand cold provocation trial (p=0.79). Five weeks of intermittent hand exposures to alternating cold and hot stimuli did not improve finger temperature responsiveness to sustained localized cold (10.9°C vs 10.8°C; p=0.79).
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