ArticleActa physiologica (Oxford, England)2026
Body Temperature Regulation in the Rat by Muscle Tone.
Article in Acta physiologica (Oxford, England), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- Body Temperature Regulation in the Rat by Muscle Tone.Acta physiologica (Oxford, England) · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors.
Funding
Abstract
aimWe have previously described an important role of skeletal muscle tone in body temperature regulation, muscle tone defined as the tonic motor unit activity recorded between movements. Here, we study muscle tone in an extensive sample of new muscles outside (external muscles) and inside (internal muscles) the body core.
methodsSkeletal muscles of adult, male Wistar rats were chronically implanted with EMG electrodes, and EMG was recorded during exposures to changes in ambient temperatures between 30°C and 5°C. Every consecutive period between movements (M) was identified as one of rest (R), whether the rat was awake or asleep. The amount of tonic motor unit impulse activity, or muscle tone, within (R) was then measured by root mean square analysis of the raw EMG.
resultsMuscle tone in external muscles depended strictly on ambient temperature, rising and falling with falling and rising ambient temperatures. In contrast, muscle tone in internal iliacus and psoas muscles showed no relation to ambient temperature but increased markedly during recovery from hypothermia caused by general anesthesia. Mean tonic motor unit firing rates varied between 10 and 75 Hz.
conclusionAll examined muscles, except iliopsoas, participated in moment-to-moment regulation of body temperature by heat-producing muscle tone during rest. Iliopsoas appeared to have an emergency function coming into play when the body temperature fell below some critical value, as during anesthesia. The wide range of tonic firing rates indicated that not only slow but also fast, fatigue-resistant motor units contributed to heat-producing muscle tone during rest.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.