Effects of GPR with K-Stretch Hammock on Posture and Musculoskeletal Discomfort

NCT06820073 | Recruiting

• 1 other identifier: GPR-KS
• Study Type: interventional
• Target: 32
• Locations: 1 country
• Sites: 1

Brief Summary

This study aims to evaluate the effects of Global Postural Reeducation (RPG) using the K-Stretch hammock on workers at San Jorge University who experience neck and lower back discomfort due to prolonged sitting. The primary goal is to examine how this intervention impacts posture, musculoskeletal discomfort, flexibility, and range of motion, as well as participants' quality of life, stress levels, and sleep quality. Neck and lower back discomfort are common issues that significantly impact individuals' quality of life and work performance. Global Postural Reeducation (RPG) is a therapeutic approach that focuses on stretching and strengthening muscle chains to improve posture and alleviate discomfort. This study is innovative in applying RPG combined with a specialized K-Stretch hammock to assess its potential benefits in a workplace setting. Participants will include 32 administrative staff members aged 19 to 65 who work predominantly in seated positions and meet specific inclusion criteria. They will undergo a 6-week program involving bi-weekly 30-minute sessions. The study will also compare pre- and post-intervention results to evaluate changes in musculoskeletal discomfort, functional abilities, and physical alignment. Findings from this study may contribute to developing effective workplace interventions for musculoskeletal health.

Conditions

Cervical and Lumbar Musculoskeletal Discomfort

Keywords

musculoskeletal discomfort; Lumbar discomfort; Cervical discomfort; Global Postural Reeducation (RPG); K-Stretch hammock; Workplace intervention; Posture improvement; Quality of life enhancement

Outcome Measures

Primary Outcomes (3)

• Cervical and Lumbar Musculoskeletal Discomfort

  Measured using the Cornell Musculoskeletal Discomfort Questionnaire (CMDQ). This tool assesses the severity and frequency of discomfort in cervical and lumbar regions.

  Immediate Intervention Group: Just before the intervention, immediately after (6 weeks), and 6 weeks post-intervention (12 weeks). Delayed Intervention Group: 6 weeks before the intervention, just before, and immediately after the intervention (6 weeks).

• Cervical and Lumbar Musculoskeletal Discomfort Scale

  Measured using a Numerical Rating Scale (NRS)

  Immediate Intervention Group: Just before the intervention, immediately after (6 weeks), and 6 weeks post-intervention (12 weeks). Delayed Intervention Group: 6 weeks before the intervention, just before, and immediately after the intervention (6 weeks).

• Improvement in Quality of Life

  Assessed using the EUROQOOL-5D questionnaire, which evaluates mobility, self-care, usual activities, pain or discomfort, and anxiety or depression to determine participants' overall quality of life. The EQ-5D-5L index value ranges from -0.285 (worst possible health state) to 1 (best possible health state), where higher scores indicate a better quality of life. Additionally, the EQ-VAS (EuroQol Visual Analogue Scale) ranges from 0 to 100, with 0 representing "the worst health state imaginable" and 100 representing "the best health state imaginable."

  Immediate Intervention Group: Just before the intervention, immediately after (6 weeks), and 6 weeks post-intervention (12 weeks). Delayed Intervention Group: 6 weeks before the intervention, just before, and immediately after the intervention (6 weeks).

Secondary Outcomes (7)

• Improvement in Functional Capacity of Low Back

  Immediate Intervention Group: Just before the intervention, immediately after (6 weeks), and 6 weeks post-intervention (12 weeks). Delayed Intervention Group: 6 weeks before the intervention, just before, and immediately after the intervention (6 weeks).

• Improvement in Functional Capacity of Neck

  Immediate Intervention Group: Just before the intervention, immediately after (6 weeks), and 6 weeks post-intervention (12 weeks). Delayed Intervention Group: 6 weeks before the intervention, just before, and immediately after the intervention (6 weeks).

• Reduction in Perceived Stress

  Immediate Intervention Group: Just before the intervention, immediately after (6 weeks), and 6 weeks post-intervention (12 weeks). Delayed Intervention Group: 6 weeks before the intervention, just before, and immediately after the intervention (6 weeks).

• Enhancement in Range of Motion

  Immediate Intervention Group: Just before the intervention, immediately after (6 weeks), and 6 weeks post-intervention (12 weeks). Delayed Intervention Group: 6 weeks before the intervention, just before, and immediately after the intervention (6 weeks).

• Changes in Muscle Tone

  Immediate Intervention Group: Just before the intervention, immediately after (6 weeks), and 6 weeks post-intervention (12 weeks). Delayed Intervention Group: 6 weeks before the intervention, just before, and immediately after the intervention (6 weeks).

Study Arms (2)

Immediate Intervention Group: Participants receive the RPG intervention using the K-Stretch hammock

EXPERIMENTAL

Participants in this arm will begin the intervention immediately after enrollment. The intervention involves 12 sessions of Global Postural Reeducation (RPG) using the K-Stretch hammock, delivered over six weeks with two 30-minute sessions per week. These sessions aim to improve posture, reduce cervical and lumbar musculoskeletal discomfort, and enhance flexibility and alignment. Participants will undergo assessments before and after the intervention to measure changes in musculoskeletal discomfort, functional capacity, range of motion, muscle tone, stress levels, and quality of life. This arm serves to evaluate the immediate effects of the RPG intervention, providing data for comparison with the delayed intervention group.

Behavioral: Global Postural Reeducation (RPG) using the K-Stretch hammock

Delayed Intervention Group: Participants receive the RPG intervention after Group 1 completes it.

EXPERIMENTAL

Participants in this arm will receive the Global Postural Reeducation (RPG) intervention using the K-Stretch hammock after Group 1 completes their intervention and post-intervention assessments. The intervention consists of 12 sessions conducted over six weeks, with two 30-minute sessions per week. The sessions are designed to improve posture, reduce cervical and lumbar musculoskeletal discomfort, and enhance flexibility and alignment. Assessments for this group will include a baseline evaluation, conducted prior to the delayed intervention period, and a post-intervention assessment to measure changes in musculoskeletal discomfort, functional capacity, range of motion, muscle tone, stress levels, and quality of life. This arm allows for a comparative analysis of immediate versus delayed intervention outcomes to assess the overall effectiveness of the RPG program.

Behavioral: Global Postural Reeducation (RPG) using the K-Stretch hammock

Interventions

Global Postural Reeducation (RPG) using the K-Stretch hammock BEHAVIORAL

The intervention involves Global Postural Reeducation (RPG) using the K-Stretch hammock. This therapeutic approach focuses on sustained stretching of muscle chains to improve posture, reduce cervical and lumbar musculoskeletal discomfort, and enhance flexibility. Participants complete 12 sessions over six weeks, with two 30-minute sessions per week. Each session includes guided exercises that target muscle imbalances, improve alignment, and alleviate tension caused by prolonged sedentary behavior. The K-Stretch hammock provides support for optimized stretching and alignment during the exercises.

Delayed Intervention Group: Participants receive the RPG intervention after Group 1 completes it.; Immediate Intervention Group: Participants receive the RPG intervention using the K-Stretch hammock

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Be a university administrative or technical staff member over 18 years old who works in a seated position during the workday.
• Have at least one year of experience in the current position.
• Present nonspecific cervical and/or lumbar musculoskeletal discomfort.

You may not qualify if:

• Be pregnant or breastfeeding.
• Have a diagnosed condition that prevents participation in an RPG session using the K-Stretch hammock.
• Participate in activities involving RPG and/or back health programs.

Sponsors & Collaborators

• Universidad San Jorge: lead

Study Sites (1)

Universidad San Jorge

Zaragoza, Zaragoza, 50830, Spain

RECRUITING

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: INVESTIGATOR, OUTCOMES ASSESSOR
• Masking Details: This study is open-label, and no masking is applied. Both participants and investigators are aware of the group assignments and the intervention being conducted. However, data analysis is performed on pseudonymized datasets to maintain objectivity and confidentiality. The individual responsible for assigning participant codes is not involved in data analysis, ensuring that any potential bias is minimized during the statistical evaluation process.
• Purpose: TREATMENT
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator

Model Details: This study employs an interventional, two-group, randomized, controlled design to evaluate the effects of Global Postural Reeducation (RPG) using the K-Stretch hammock on musculoskeletal discomfort and related outcomes. Participants are randomly assigned to either Group 1, which undergoes the intervention in the first six weeks, or Group 2, which receives the same intervention after Group 1 completes its post-intervention assessment. Each group participates in 12 sessions, lasting 30 minutes each, conducted twice weekly. The intervention involves targeted stretching techniques focused on improving posture, reducing musculoskeletal discomfort, and enhancing flexibility and alignment. Assessments are conducted at baseline, after Group 1 intervention, and after Group 2 intervention to compare pre- and post-intervention outcomes and ensure a robust evaluation of the intervention's effectiveness.

Study Record Dates

• First Submitted: January 15, 2025
• First Posted: February 11, 2025
• Study Start: February 1, 2025
• Primary Completion: April 20, 2025
• Study Completion: October 1, 2025
• Last Updated: February 11, 2025

Record last verified: 2025-02

Locations

ES (1)