Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
1990-6-5
pubmed:abstractText
Recent investigations have argued for the metabolic efficiency of headloading as a mode of load-carriage, and have included proposals of an energetic 'free-ride' for loads under 20% bodymass. Our own energy-cost analyses on laboratory-habituated African women occupational headloaders is used to evaluate the free-ride hypothesis, but more especially to throw new light on the kinematics of foot-floor contact patterns. Under headloading there is a tendency for the impact-receiving mechanisms of the foot to be less effective. However, a delayed heel-rise later in the step increases stability of support by reducing the duration of forefoot-only contact. Plantar thrust under headloading has a relatively longer duration, which may have force-velocity implications for the propulsive musculature.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0014-0139
pubmed:author
pubmed:issnType
Print
pubmed:volume
32
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1539-50
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Metabolic and kinematic responses of African women headload carriers under controlled conditions of load and speed.
pubmed:publicationType
Journal Article