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Completed

NCT Number: NCT05425693

Effects of Three Warm-up Interventions at the Workplace Among Vineyard Workers - a Protocol Study

Background:

Physical activity programs at the workplace have shown positive results on physical capacities and pain for several years. Due to the duration of the training session, the need of instructor, and the need of a place to practice, these programs are commonly complex to implement. For this reason, many of companies, especially companies in manual sectors are turning to another solution, i.e warm-up intervention before work shift. These interventions present on paper numerous advantages such as short duration, no need to specifically allocate a place in companies and the possibility to perform exercises in working clothes… Surprisingly, while positive effects of warm-up interventions on pain, performance physical and psychological capacities, are expansively reported in sport context, effects of workplace warm-up intervention are lacking. Therefore, the aims of this study are (1) to implement such intervention among vineyard-workers, workers highly exposed to heavy physical workload and pain and (2) to assess their effects on physical (pain, strength, flexibility) and psychological (workload) functions and also on work-related outcomes (work performance, readiness to work)

Methods:

A cluster randomized study will be implemented among French vineyard workers. Four groups of 30 participants will be constituted; corresponding to four different conditions: (1) hybrid warm-up intervention (HWU); (2) dynamic warm-up intervention (DWU); (3) stretching warm-up intervention (SWU); (4) no warm-up intervention (NWU). A total of 120 vineyard-workers will be recruited to participate in the study.

Discussion:

The results will provide more evidence about the short-term effects of warm-up interventions at the workplace, and will provide more evidence on which warm-up modality is the most effective on pain, performance, physical and psychological capacities among vineyard workers.

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Key information

Conditions

Pain Behavior Injuries Motor Activity Neurologic Manifestations Pathological Conditions, Signs and Symptoms Signs and Symptoms Wounds and Injuries

Age range

18 year–60 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

OptiMouv

Pauillac, Gironde, 33250, France

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • working full time
  • having at least 1 year of employment in the company

Exclusion criteria

  • not to present previous surgery in the low back region in the last 12 months

Treatment and study plan

Hybrid Warm-up

Other

Dynamic + stretching exercises

Dynamic Warm-up

Other

Dynamic exercises

Stretching Warm-up

Other

Stretching exercises

Primary outcomes

  1. Perceived pain intensity

    Time frame: Pain intensity will be rated for the last 3 months

    Participants will be asked to rate their pain intensity over 15 anatomical locations using a 0-10 numerical rating scale (NRS), where 0 is used to indicate "no pain" while 10 indicate the "worst possible pain".

  2. Perceived pain intensity

    Time frame: Pain intensity will be rated before the warm-up intervention (Time 0)

    Participants will be asked to rate their pain intensity over 15 anatomical locations using a 0-10 numerical rating scale (NRS), where 0 is used to indicate "no pain" while 10 indicate the "worst possible pain".

  3. Perceived pain intensity

    Time frame: Pain intensity will be rated after the warm-up intervention (Time 1)

    Participants will be asked to rate their pain intensity over 15 anatomical locations using a 0-10 numerical rating scale (NRS), where 0 is used to indicate "no pain" while 10 indicate the "worst possible pain".

  4. Perceived pain intensity

    Time frame: Pain intensity will be rated at the beginning of the working activity (Time 2)

    Participants will be asked to rate their pain intensity over 15 anatomical locations using a 0-10 numerical rating scale (NRS), where 0 is used to indicate "no pain" while 10 indicate the "worst possible pain".

  5. Perceived pain intensity

    Time frame: Pain intensity will be rated after the first hour of work (Time 3)

    Participants will be asked to rate their pain intensity over 15 anatomical locations using a 0-10 numerical rating scale (NRS), where 0 is used to indicate "no pain" while 10 indicate the "worst possible pain".

  6. Perceived pain intensity

    Time frame: Pain intensity will be rated after the second hour of work (Time 4)

    Participants will be asked to rate their pain intensity over 15 anatomical locations using a 0-10 numerical rating scale (NRS), where 0 is used to indicate "no pain" while 10 indicate the "worst possible pain".

  7. Perceived pain intensity

    Time frame: Pain intensity will be rated after three hour of work (Time 5)

    Participants will be asked to rate their pain intensity over 15 anatomical locations using a 0-10 numerical rating scale (NRS), where 0 is used to indicate "no pain" while 10 indicate the "worst possible pain".

  8. Work performance

    Time frame: After one hour of work (Time 3)

    number of grapevine pruned

  9. Work performance

    Time frame: After two hours of work (Time 4)

    number of grapevine pruned

  10. Work performance

    Time frame: After three hours of work (Time 5)

    number of grapevine pruned

Secondary outcomes

  1. Handgrip Strength

    Time frame: Before the warm-up intervention (Time 0)

    Handgrip Strength

  2. Handgrip Strength

    Time frame: After the warm-up intervention (Time 1)

    Handgrip Strength

  3. Handgrip Strength

    Time frame: After three hour of work (Time 5)

    Handgrip Strength

  4. Flexibility

    Time frame: Before the warm-up intervention (Time 0)

    Flexibility of the trunk and the hamstrings - Finger to floor test

  5. Flexibility

    Time frame: After the warm-up intervention (Time 1)

    Flexibility of the trunk and the hamstrings - Finger to floor test

  6. Flexibility

    Time frame: After three hour of work (Time 5)

    Flexibility of the trunk and the hamstrings - Finger to floor test

  7. Flexibility

    Time frame: Before the warm-up intervention (Time 0)

    Flexibility of the shoulders - Back scratch test

  8. Flexibility

    Time frame: After the warm-up intervention (Time 1)

    Flexibility of the shoulders - Back scratch test

  9. Flexibility

    Time frame: After three hour of work (Time 5)

    Flexibility of the shoulders - Back scratch test

  10. Heart rate

    Time frame: Time 0

    Heart rate with a heart rate monitor placed on the wrist

  11. Heart rate

    Time frame: Time 1

    Heart rate with a heart rate monitor placed on the wrist

  12. Heart rate

    Time frame: Time 2

    Heart rate with a heart rate monitor placed on the wrist

  13. Heart rate

    Time frame: Time 3

    Heart rate with a heart rate monitor placed on the wrist

  14. Heart rate

    Time frame: Time 4

    Heart rate with a heart rate monitor placed on the wrist

  15. Heart rate

    Time frame: Time 5

    Heart rate with a heart rate monitor placed on the wrist

  16. Readiness to work

    Time frame: Time 1

    Readiness to work was rated subjectively using a 0-10 numerical rating scale, where 0 was used to indicate "not at all ready" and 10 "perfectly ready to work"

  17. Readiness to work

    Time frame: Time 2

    Readiness to work was rated subjectively using a 0-10 numerical rating scale, where 0 was used to indicate "not at all ready" and 10 "perfectly ready to work"

  18. Work quality

    Time frame: Time 5

    Work quality will be assessed by the workers supervisors, with the same 0-10 scale in every company, developed by the research team and a vineyard growing specialist.

  19. Workload

    Time frame: Time 5

    NASA Task Load Index (NASA TLX) is a multi-dimensional scale used to estimate workload from a worker.

  20. Visuomotor reaction time

    Time frame: Time 0

    The FITLIGHT Trainer (FITLIGHT Sports Corp., Ontario, Canada) will be used to measure the visuomotor reaction time (VMRT).

  21. Visuomotor reaction time

    Time frame: Time 1

    The FITLIGHT Trainer (FITLIGHT Sports Corp., Ontario, Canada) will be used to measure the visuomotor reaction time (VMRT).

  22. Visuomotor reaction time

    Time frame: Time 5

    The FITLIGHT Trainer (FITLIGHT Sports Corp., Ontario, Canada) will be used to measure the visuomotor reaction time (VMRT).

Sponsors and collaborators

Lead sponsor

Opti'Mouv

Industry

Collaborators

  • University Grenoble Alps

Registry information

Official study title

Comparison of the Effects of Three Warm-up Interventions at the Workplace on Pain, Heart Rate, Work Performance and Physical Capacities Among Vineyard Workers - a Protocol Study

Important dates

Study start
2021
Primary completion
2022
Study completion
2022
First posted
Jun 21, 2022
Registry last updated
Jun 21, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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