Comparison of Trunk Muscle Performance Between Sprinters With and Without Hamstring Strain Injury History

NCT06089681 | Completed

• 1 other identifier: YM111052F
• Study Type: observational
• Target: 32
• Locations: 1 country
• Sites: 1

Brief Summary

The aim of this study is to:

1. 1.Compare trunk muscle performance between sprinters with and without HSI history
2. 2.Investigate whether running speed influences the differences on trunk muscle activity between these two groups

Conditions

Hamstring Injury

Keywords

Hamstring Strain Injury; Trunk Muscle Performance; Hip Muscle Performance; Sprinter

Outcome Measures

Primary Outcomes (7)

• Surface electromyography (Noraxon TeleMyo sEMG System, Noraxon USA Inc, Scottdale, Ariz)

  Muscle activation of external oblique, internal oblique, erect spinae, gluteus maximus when sprinting on the treadmill at 40% and 60% maximal speeds

  Immediately during the experiment

• Isometric trunk flexor muscle strength (Pro 4, Biodex Medical Systems, Inc., Shirley, NY, United States)

  Isometric muscle strength of trunk flexor is measured with Biodex System 4 Pro™ in sitting position

  Immediately during the experiment

• Isometric trunk extensor muscle strength (Pro 4, Biodex Medical Systems, Inc., Shirley, NY, United States)

  Isometric muscle strength of trunk extensor is measured with Biodex System 4 Pro™ in sitting position

  Immediately during the experiment

• Isometric trunk rotator muscle strength (microFET®2 Digital Handheld Dynamometer)

  Isometric muscle strength of trunk rotator is measured with microFET in hook-lying position

  Immediately during the experiment

• Trunk flexor muscle endurance

  Muscle endurance of trunk flexor is measured with trunk muscle endurance test. It requires subjects to sit on the test bench and place the upper body against a support with an angle of 60˚ from the test bed. Both the knees and hips are flexed to 90˚. The arms are folded across the chest with hands placed on the opposite shoulder and toes are placed under toe straps. Subjects will be instructed to maintain the body position while the supporting wedge is pulled back 10cm to begin the test. The test ends when the upper body falls below the 60˚ angle. The time the subjects maintain will be recorded.

  Immediately during the experiment

• Trunk extensor muscle endurance

  Muscle endurance of trunk extensor is measured with Biering-Sorensen test. It requires subjects to lay prone with the lower body fixed to the test bed at the ankles, knees, and hips and the upper body extended in a cantelevered fashion over the edge of the test bench. The test bench surface is approximately 25cm above the surface of the floor. Subjects rest their upper bodies on the floor before the exertion. At the beginning of the exertion the upper limbs are held across the chest with the hands resting on the opposite shoulders, and the upper body is lifted off the floor until the upper torso is horizontal to the floor. Subjects are instructed to maintain the horizontal position as long as possible. The time the subjects maintain will be recorded.

  Immediately during the experiment

• Trunk lateral flexor muscle endurance

  Muscle endurance of trunk lateral flexor is measured with side bridge test. It requires subjects to lay on an exercise mat (thickness, 2.5cm) on their sides with legs extended. The top foot is placed in front of the lower foot on the mat for support. Subjects are instructed to support themselves lifting their hips off the mat to maintain a straight line over their full body length, and support themselves on one elbow and their feet. The uninvolved arm is held across the chest with hand placed on the opposite shoulder. The test ends when the hips returns to the exercise mat. The time the subjects maintain will be recorded.

  Immediately during the experiment

Other Outcomes (2)

• Isokinetic lower extremity muscle strength ratio (Pro 4, Biodex Medical Systems, Inc., Shirley, NY, United States)

  Immediately during the experiment

• Hamstring flexibility

  Immediately during the experiment

Study Arms (2)

Hamstring strain injury history group

Sprinters who have ≥ twice hamstring strain injury occurrence in the past year

Control group

Sprinters who match gender, age, BMI, dominant side, training experience, training frequency, PB in 100m with HSI history group and without any hamstring strain injury occurrence in the past year

Eligibility Criteria

• Age: 16 Years - 30 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64)
• Sampling Method: Probability Sample

Study Population

* Age between 16 to 30 years old * Sprinters who specialize in 100, 200, 400 meters, or 100, 400 metres hurdles * Participates in sprint training ≥ three times a week * Without any pain when participation in sporting activity

You may qualify if:

• Have ≥ twice hamstring strain injury occurrence in the past year
• Without any hamstring strain injury occurrence in the past year
• Match gender, age, BMI, dominant side, training experience, training frequency, Personal best record in 100m with HSI history group

You may not qualify if:

• Neurological, cardiorespiratory or systemic disorder
• Have low back pain history in the past year
• Scoliosis
• Sacroiliac joint dysfunction
• Complaints of pain on trunk \& lower extremity
• Leg length difference \> 2cm
• History of lower extremity surgery

Sponsors & Collaborators

• National Yang Ming Chiao Tung University: lead

Study Sites (1)

National Yang Ming Chiao Tung University

Taipei, Beitou, 112304, Taiwan

Location

Study Design

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

Study Record Dates

• First Submitted: June 28, 2022
• First Posted: October 18, 2023
• Study Start: August 1, 2022
• Primary Completion: September 8, 2023
• Study Completion: October 10, 2023
• Last Updated: October 18, 2023

Record last verified: 2023-04

Locations

TW (1)