Chronic Adaptations to Spinal Flexion Exposure

University of Primorska

Status: Completed

Conditions: Occupational Exposure

Treatments: Other: Repeated trunk flexion

Study type: Interventional

Funder types: Other

Identifiers

NCT05752006

SWE_Flexion2_Crane

Details and patient eligibility

About

An experimental study, which will aim to compare changes of trunk mechanical properties and neuromuscular control following spinal flexion exposure in crane operators and control subjects.

Full description

Our experimental study will include 40 participants, more specifically 15 crane operators and 15 control subjects. All participants will complete a 60-min protocol of intermittent trunk flexion. Measurements of trunk mechanical properties and neuromuscular control will be performed prior to and following the 60-min protocol.

Enrollment: 30 patients

Sex: Male

Ages: 30 to 55 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Crane operators: employed as crane operators for more than 3 years
• Occupational workers with a predominantly non static job (e.g. combination of sitting and standing)

Exclusion criteria

• History of chronic low back pain
• Episode of acute low back pain
• Hip injury in the past six months
• Previous spine, pelvis or hip surgery
• Hypermobility, diagnosed with the Beighton score
• High intensity resistance training (> 75 % of 1 repetition maximum) more than two times a week
• Control group: sporting or recreational activities, that include repetitive spinal flexion or maintenance of a flexed posture (for example cycling or rowing).

Trial design

Primary purpose: Basic Science

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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30 participants in 2 patient groups

Crane operators

Experimental group

Description:

Individuals employed as crane operators in Port of Koper.

Treatment:

Other: Repeated trunk flexion

Control subjects

Active Comparator group

Description:

Individuals who spend more than half of their occupation time standing.

Treatment:

Other: Repeated trunk flexion