Exercise and Health Education for Textile Workers: A Pre-Post Study
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-65
SponsorUniversidad San Jorge
About this trial
Musculoskeletal disorders (MSDs) significantly impact quality of life, health status, and work ability. Standard treatments include ergonomic interventions, therapeutic exercise programs, education on risk prevention, active breaks, and physiotherapy. This study aims to assess the current physical and psychosocial condition of textile manufacturing workers and to evaluate the impact of a combine exercise and health education program on their physical and psychosocial outcomes.
The eight-week intervention consists of a weekly in-person workshops and two asynchronous online exercise sessions per week via a mobile app, with exercises adjusted based on participant feedback.
Participants will be recruited from voluntary textile workers at Lacor Textil, S.L., aged 18-65, with active employment. All participants will receive the intervention program.
Primary objectives are to assess the baseline physical and psychosocial condition of participants and to evaluate the effects of the eight-week intervention on their physical fitness, musculoskeletal health, and overall psychosocial well-being
Secondary objectives are to examine changes in the intensity and location of musculoskeletal pain and discomfort, the prevalence of symptoms in different body regions, upper and lower body strength using standardized tests, work ability and perception of work performance, and psychosocial and cognitive factors including sleep quality, stress, anxiety, depression, productivity, and quality of life.
Hypothesis: The implementation of an eight-week physical exercise and health education program in textile workers will reduce perceived musculoskeletal discomfort and pain, and improve their physical fitness and psychosocial well-being.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Have an active employment contract with Lacor Textil covering the entire duration of the study, including the month following the third evaluation phase.
Be aged 18-65 years (inclusive).
Be available to participate in all scheduled sessions.
Disqualifiers
Have severe or specific musculoskeletal conditions that contraindicate exercise.
Be currently pregnant.
Be receiving physiotherapy treatment concurrently.
Be on temporary sick leave during the intervention period.
Trial design
Design model
Single group
Treatments tested in this trial
Combined Exercise Training and Health Education Program
Other interventionThe intervention consists of an 8-week hybrid program combining exercise training and workplace-based health education. Eight on-site educational workshops (one per week) are delivered during working hours and address topics related to pain management, physical activity, stress management, and healthy lifestyle behaviors, including review and discussion sessions. The exercise training includes two weekly sessions delivered through a mobile application (RehBody platform). Sessions begin with a warm-up incorporating mobility and core exercises, followed by strengthening exercises for the upper and lower extremities. Exercise difficulty progresses from bilateral, single-joint movements to unilateral, multi-joint exercises. The program is delivered by trained physical therapists and is adaptable to individual participant needs.
Treatment groups
38 Participants
are divided into 1 treatment groupGroup A: Physical Exercise and Health Education ProgramExperimental treatment 1 intervention
Trial outcomes
Primary outcomes
1
Change in Pain Intensity
Change in the score on the Numerical Rating Scale (NRS). The NRS scale for pain assessment is a scale that measures the intensity of pain experienced by the patient. It is a numerical rating scale where the patient is asked to rate their pain between 0 and 10. The reported values are classified as follows: no pain = 0; mild pain = 1,2; moderate pain = 3-5; severe pain = 6-8; unbearable pain = 9-10.
Time frame
From baseline to end of treatment (8 weeks) and 4-week follow-up.Secondary outcomes
1
Change in Musculoskeletal Symptoms
Musculoskeletal disorders will be evaluated using the Standardized Nordic Musculoskeletal Questionnaire (Kuorinka), a self-administered questionnaire consisting of 11 multiple-choice items. The questionnaire provides information on the presence of pain, fatigue, or discomfort in different musculoskeletal body regions. It is designed to detect early musculoskeletal symptoms and to support the analysis of potential ergonomic risk factors. Higher values indicate a greater burden of musculoskeletal symptoms.
Time frame
From baseline to end of treatment (8 weeks) and 4-week follow-up.2
Change in Upper Limb Muscle Strength
Upper limb muscle strength will be assessed using the handgrip strength test, measured with a hand-held dynamometer (Takei Grip-D). Participants will be seated on a chair with the elbow flexed at 90 degrees and the forearm in a neutral position. Participants will perform a maximal handgrip contraction for up to 3 seconds. Three trials will be conducted, with a 1-minute rest period between attempts. Handgrip strength will be recorded in kilograms (kg), with higher values indicating greater upper limb muscle strength.
Time frame
From baseline to end of treatment (8 weeks) and 4-week follow-up.3
Change in Lower Limb Muscle Strength
Lower limb muscle strength will be measured using the 30-second Sit-to-Stand-Test (STST).Participants will begin seated on a chair with feet slightly apart and flat on the floor, and arms crossed over the chest. Upon a verbal signal, participants will rise to a full standing position and return to the seated position as many times as possible within 30 seconds. Only correctly completed repetitions, as well as repetitions reaching more than half of the full range of motion at the end of the test, will be counted. Higher numbers of repetitions indicate greater lower limb muscle strength.
Time frame
From baseline to end of treatment (8 weeks) and 4-week follow-up.4
Change in Physical Activity Level
Physical Activity level will be assessed using the International Physical Activity Questionnaire, Short Form (IPAQ-SF), a validated self-administered questionnaire consisting of 7 items. The questionnaire records the frequency (days per week) and duration (hours and minutes per day) of physical activity performed during a reference week. It is a standardized instrument widely used internationally for population-based physical activity assessment. Higher scores indicate higher levels of physical activity.
Time frame
From baseline to end of treatment (8 weeks) and 4-week follow-up.Sponsors and contacts
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Source ClinicalTrials.gov