Why the study?
Does ingestion of cold- and room-tempered tap water reduce cardiac workload compared to body-tempered water in young humans?
Does ingestion of cold- and room-tempered tap water reduce cardiac workload compared to body-tempered water in young humans?
Drinking cold or room-temperature water reduces cardiac workload in young humans, potentially through augmented cardiac vagal tone.
Should not yet change practice; leaves open effects beyond young healthy adults.
Overall, ingestion of cold- and room-, but not body-tempered water reduced the workload to the heart through a reduction in heart rate and double product which could be mediated by an augmented cardiac vagal tone.
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Girona et al. (2014) studied this question.
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