Comparison of the Effect of National Academy of Sports Medicine (NASM)-Based Corrective Exercises with and without Hamstring Stretching on Posture and Quality of Life in Dentists with Upper Crossed Syndrome

Comparison of the effects of two training methods based on the National Academy of Sports Medicine approach with and without hamstring stretching on the alignment and quality of life of dentists with upper crossed syndrome.

randomized, controlled, parallel-group clinical trial

After selecting the subjects and confirming the presence of upper crossed syndrome and hamstring shortening, these individuals will be assigned to the intervention and control groups using a random block method and will receive the necessary therapeutic exercises under the supervision of the researcher in the rehabilitation center. Blinding will not be performed in this study.

Inclusion: Age range between 30 and 40 years and at least 3 years of dental work experience, have a body mass index of less than 30, have thoracic kyphosis angles above 42 degrees, head forward angle above 45 degrees, and shoulder forward angle above 52 degrees, and have a doctor's permission to participate in exercises and have hamstring shortness. Exclusion: similar corrective interventions in the past 6 months and a history of spinal surgery, presence of musculoskeletal diseases and medical problems

Intervention group: In addition to the National Academy of Sports Medicine corrective exercises, which include restraint, lengthening, activation, and integration techniques, they also perform specific hamstring stretching exercises. The exercises are performed for 8 weeks, 3 sessions of 50 minutes each week. Control group: They only perform the National Academy of Sports Medicine corrective exercises without any hamstring stretching for 8 weeks, 3 sessions of 50 minutes each week.

Alignment( kyphosis angle, forward head angle, forward shoulder angle), quality of life

In this study, researchers employ a block randomization method to assign patients to two distinct groups. The approach involves dividing patients into smaller blocks and then randomly allocating them to the main research groups (NASM exercises with hamstring stretching and NASM exercises without hamstring stretching). The goal is to balance the groups and minimize the impact of confounding variables on the research outcomes. Implementation steps: Patient numbering: Each patient is assigned a unique identifier. Web application utilization: To facilitate randomization, a specialized web application named "Research Randomizer" is used. This tool automatically distributes patients into groups using random algorithms. Block division: Patients are divided into 5 blocks of 6 individuals each. This is done to ensure balance within each block. Group assignment: Patients within each block are randomly assigned to groups A and B in sequence. The sequence is determined by the web application. Formation of main groups: Ultimately, patients from all blocks are combined, forming two main 15-person groups (NASM exercises with and without hamstring stretching)

All data obtained from this research will be made freely and openly available to researchers and interested parties through academic databases and reputable scientific articles, after the anonymization of participants.

6 to 15 months after the publication of the results

All researchers, therapists and specialists.

With the aim of facilitating the improvement of the level of academic research and improving the treatment of patients by therapists, researchers and specialists.

Parisa Shahrzad, Faculty of Physical Education, University of Tehran (Tehran - North Kargar St. - above Jalal Al Ahmad Intersection - between 15th and 16th St. - in front of Tehran University Koi). Email: Parisashahrzad@yahoo.com

As soon as the scientific articles are published, all relevant findings and data that can help to advance research and improve treatment methods will be available to the scientific community.