Kinematics and Muscle Performance of the Trunk and Shoulder in Volleyball Players With Subacromial Impingement Syndrome

NCT05439122 | Completed

• 1 other identifier: YM111061E
• Study Type: observational
• Target: 40
• Locations: 1 country
• Sites: 1

Brief Summary

Volleyball players repetitively place the arm into extreme positions, and thus expose the athletes' shoulders to a large load and increase the risk of injuries. The shoulder complex is identified as one of the most injured joints in volleyball sports. Although many studies have revealed alterations in the function, morphology and biomechanics of the shoulder complex in volleyball players with shoulder pain, some researchers suggested that a smooth energy transfer from the axial skeleton, through the shoulder complex, to the arm and hand is crucial for overhead sports performance and injury prevention, with little evidence showing the link between trunk muscle performance and shoulder pain in volleyball players. Therefore, the main purposes of present study are (1) to compare the trunk muscle performance (muscle strength, power and endurance) in volleyball players with and without subacromial impingement syndrome (SIS); (2) to compare trunk and shoulder muscles activity during spiking in volleyball players with and without SIS.

Conditions

Biomechanical Phenomena

Keywords

Subacromial impingement; muscle performance; volleyball players

Outcome Measures

Primary Outcomes (3)

• Muscle strength and power of trunk and shoulder

  The investigator will use isokinetic dynamometer (Biodex Multi-Joint System 4 Pro) and (BTE Primus RS) to measure trunk and shoulder muscles torque and power. Trunk flexion, extension and bilateral rotations will be measured at 60°/s and 180°/s. Shoulder external, internal, horizontal adduction and horizontal abduction will be measured at 90°/s, 180°/s and 240°/s.

  Immediately during the experiment

• Trunk and shoulder muscle activities and kinematics during volleyball spiking

  The investigator will place surface electromyography (sEMG) (Noraxon, USA) on subjects' bilateral external oblique abdominis, erector spinaes and dominated side of lower trapezius, upper trapezius, serretus anterior and infraspinatus to record muscle activities during spiking. The investigator will also use the electromagnetic motion tracking system (LIBERTY™) to record the kinematics of trunk and shoulder during spiking.

  Immediately during the experiment

• Muscle endurance of trunk and shoulder

  The subjects will perform trunk flexor, extensor and lateral flexor endurance tests with fixation of lower extremities. The subjects will be asked to hold in a specific position as longer as possible until they quit or fall into wrong position. The holding time will be their score.

  Immediately during the experiment

Eligibility Criteria

• Age: 18 Years - 40 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)
• Sampling Method: Non-Probability Sample

Study Population

* Volleyball players with more than 2 years' experience on a collegiate team. * Volleyball players have been trained by professional coach over half a year. * Playing or training for volleyball over 8 hours per week.

You may qualify if:

• Asymptomatic group:
• The asymptomatic group has to present no history of pain or dysfunction on the shoulder and/or neck in past 6 months.
• Subacromial impingement syndrome group:
• Occurrence of shoulder pain that lasted more than 3 months and was related to a spiking movement.
• Present impingement symptoms as a combination of three or more positive signs: Neer test, Hawkins Kennedy test, Jobe test, Painful arc test, Resisted shoulder ER test

You may not qualify if:

• Cannot perform spiking movement due to shoulder pain.
• Acute shoulder injury at the time of recruitment or shoulder structural lesion, including hypo/hypermobility, or abnormality.
• History of surgery and fracture in the upper and lower limbs or trunk.
• History of pain in the lower limbs and trunk in the last 3 months.
• Neurological or cardio respiratory disorders.
• Receiving any intervention for the shoulder pain including medication, injection, or general physical therapy during the previous 3 months.

Sponsors & Collaborators

• Yi-Fen Shih: lead

Study Sites (1)

National Yang Ming University

Taipei, 11221, Taiwan

Location

MeSH Terms

Conditions

Shoulder Impingement Syndrome

Condition Hierarchy (Ancestors)

Joint Diseases; Musculoskeletal Diseases; Shoulder Injuries; Wounds and Injuries

Study Design

• Study Type: observational
• Observational Model: CASE CONTROL
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR INVESTIGATOR
• PI Title: Professor

Study Record Dates

• First Submitted: June 23, 2022
• First Posted: June 30, 2022
• Study Start: January 1, 2023
• Primary Completion: August 1, 2023
• Study Completion: November 20, 2023
• Last Updated: November 21, 2023

Record last verified: 2023-11

Locations

TW (1)