Energy expenditure during grain grinding using reciprocal quern and rotary quern

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F25%3A10500291" target="_blank" >RIV/00216208:11310/25:10500291 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=gRbEiAbMII" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=gRbEiAbMII</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jas.2025.106292" target="_blank" >10.1016/j.jas.2025.106292</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Energy expenditure during grain grinding using reciprocal quern and rotary quern

Popis výsledku v původním jazyce

Previous experimental archaeology studies have shown that the transition from reciprocal quern to rotary quern in the Iron Age saved grinding women 75 % of the time and muscle activation per amount of ground grain. However, whether the detected between-quern differences in time and overall muscle activation reflect differences in energy cost is unclear. Here, we used indirect calorimetry (analysis of oxygen consumption and carbon dioxide production) to measure the energy expenditure during grinding on a Neolithic reciprocal quern and an Iron Age bun-shaped rotary quern in adult females (n = 30). Our results revealed that rotary quern grinding required a 123-153 % higher energy expenditure per minute (by about 2.7 kcal per minute of grinding) but a 42-49 % lower net cost of grinding, i.e., energy expenditure per given amount of grain (by about 74 kcal per kilogram of grain) compared to reciprocal quern. We estimated that transitioning from reciprocal to rotary quern reduced women&apos;s daily subsistence costs by 100-300 kcal.

Název v anglickém jazyce

Energy expenditure during grain grinding using reciprocal quern and rotary quern

Popis výsledku anglicky

Previous experimental archaeology studies have shown that the transition from reciprocal quern to rotary quern in the Iron Age saved grinding women 75 % of the time and muscle activation per amount of ground grain. However, whether the detected between-quern differences in time and overall muscle activation reflect differences in energy cost is unclear. Here, we used indirect calorimetry (analysis of oxygen consumption and carbon dioxide production) to measure the energy expenditure during grinding on a Neolithic reciprocal quern and an Iron Age bun-shaped rotary quern in adult females (n = 30). Our results revealed that rotary quern grinding required a 123-153 % higher energy expenditure per minute (by about 2.7 kcal per minute of grinding) but a 42-49 % lower net cost of grinding, i.e., energy expenditure per given amount of grain (by about 74 kcal per kilogram of grain) compared to reciprocal quern. We estimated that transitioning from reciprocal to rotary quern reduced women&apos;s daily subsistence costs by 100-300 kcal.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10600 - Biological sciences

Projekt

<a href="/cs/project/GX21-17092X" target="_blank" >GX21-17092X: Vznik multietnické komplexní společnosti na raně středověké Moravě. Teorie kolektivního jednání a interdisciplinární přístup</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Archaeological Science

ISSN

0305-4403

e-ISSN

1095-9238

Svazek periodika

180

Číslo periodika v rámci svazku

August

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

106292

Kód UT WoS článku

001520097200001

EID výsledku v databázi Scopus

2-s2.0-105008670602