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A cross-sectional analysis of the muscle strength, spinal shrinkage, and recovery during a working day of military police officers.
Hoflinger, Francielle; Rodacki, André Luiz Felix; Tavares, Janny M; Fadel Neto, Milton I; Paulo, Anderson C; Fowler, Neil E; Rodacki, Cintia L N.
Afiliação
  • Hoflinger F; Paraná Federal Technological University, Curitiba, PR, Brazil.
  • Rodacki ALF; Department of Physical Education, Paraná Federal University, Centro Politécnico - Rua Cel. Francisco H. dos Santos, Curitiba, PR, Brazil.
  • Tavares JM; Department of Physical Education, Paraná Federal University, Centro Politécnico - Rua Cel. Francisco H. dos Santos, Curitiba, PR, Brazil.
  • Fadel Neto MI; Paraná Federal Technological University, Curitiba, PR, Brazil.
  • Paulo AC; Paraná Federal Technological University, Curitiba, PR, Brazil.
  • Fowler NE; The University of Salford, Salford, UK.
  • Rodacki CLN; Paraná Federal Technological University, Curitiba, PR, Brazil.
J Occup Health ; 63(1): e12297, 2021 Jan.
Article em En | MEDLINE | ID: mdl-34953000
OBJECTIVE: Military personnel has a large prevalence of back pain, especially those involved in patrolling routines, as they wear heavy protective equipment. Patrolling includes long periods of sustaining the protective equipment in a sitting or in a motor vehicle (motorcycle or car). Thus, understanding spinal loading of military police officers after patrolling by car (CAR; n = 14), motorcycle (MOT; n = 14), and administrative (ADM; n = 14) routines is relevant to establish preventive strategies. METHODS: The torque of the trunk and working and anthropometric characteristics were assessed to explain spinal loading using stature variation measures. Precise stature measures were performed before and after a 6 h journey (LOSS) and 20 min after a resting posture (RECOV). The trunk extensor (PTE BM-1 ) and flexor (PTF BM-1 ) muscles' isometric peak torque were measured before the working journey. RESULTS: The LOSS was similar between CAR and MOT (4.8 and 5.8 mm, respectively) after 6 h of patrolling. The ADM presented the lowest LOSS (2.8 mm; P < .05). No changes in RECOV between groups were observed (P > .05). Vibration may explain the greater spinal loading involved in patrolling in comparison to the ADM. A GLM analysis revealed that BMI was the only explanatory factor for stature loss. No independent variables explained RECOV. The ability of the trunk muscles to produce force did not influence LOSS or RECOV. CONCLUSIONS: Military police officers involved in patrolling may require greater post-work periods and strategies designed to reduce the weight of the protective apparatus to dissipate spinal loading. The external load used in patrolling is a relevant spinal loading factor.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Coluna Vertebral / Suporte de Carga / Polícia / Força Muscular / Vértebras Lombares Tipo de estudo: Observational_studies / Prevalence_studies / Risk_factors_studies Limite: Humans Idioma: En Ano de publicação: 2021 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Coluna Vertebral / Suporte de Carga / Polícia / Força Muscular / Vértebras Lombares Tipo de estudo: Observational_studies / Prevalence_studies / Risk_factors_studies Limite: Humans Idioma: En Ano de publicação: 2021 Tipo de documento: Article