Lower limb flexion posture relates to energy absorption during drop landings with soldier-relevant body borne loads.
Appl Ergon
; 52: 54-61, 2016 Jan.
Article
em En
| MEDLINE
| ID: mdl-26360194
ABSTRACT
Fifteen military personnel performed 30-cm drop landings to quantify how body borne load (light, â¼6 kg, medium, â¼20 kg, and heavy, â¼40 kg) impacts lower limb kinematics and knee joint energy absorption during landing, and determine whether greater lower limb flexion increases energy absorption while landing with load. Participants decreased peak hip (P = 0.002), and knee flexion (P = 0.007) posture, but did not increase hip (P = 0.796), knee (P = 0.427) or ankle (P = 0.161) energy absorption, despite exhibiting greater peak hip (P = 0.003) and knee (P = 0.001) flexion, and ankle (P = 0.003) dorsiflexion angular impulse when landing with additional load. Yet, when landing with the light and medium loads, greater hip (R(2) = 0.500, P = 0.003 and R(2) = 0.314, P = 0.030) and knee (R(2) = 0.431, P = 0.008 and R(2) = 0.342, P = 0.022) flexion posture predicted larger knee joint energy absorption. Thus, military training that promotes hip and knee flexion, and subsequently greater energy absorption during landing, may potentially reduce risk of musculoskeletal injury and optimize soldier performance.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Postura
/
Suporte de Carga
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Perna (Membro)
/
Militares
Tipo de estudo:
Prognostic_studies
Limite:
Adult
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Humans
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Male
Idioma:
En
Revista:
Appl Ergon
Ano de publicação:
2016
Tipo de documento:
Article
País de publicação:
ENGLAND
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ESCOCIA
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GB
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GREAT BRITAIN
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INGLATERRA
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REINO UNIDO
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SCOTLAND
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UK
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UNITED KINGDOM