Application of Manual Therapy to Archers

Not Applicable

Not yet recruiting

• Conditions: Healthy

• Registration Number: NCT06747104
• Lead Sponsor: Medical University of Gdansk

Brief Summary

The aim of this study is to: (i) characterize the effect of repeated archery shots on the EMG parameters of certain selected upper limb muscles; and (ii) evaluate how manipulation of the initial two-second tension phase, in particular involving muscle stretching, affects these EMG parameters after repeated shots.

Detailed Description

EMG measurements will be collected for selected muscles in the shoulder joint and forearm, at points: initially at the beginning, after the athletes have performed 50 and another 50 archery shots, and finally after undergoing manual therapy. The main phase of muscle testing will take place in the Aiming phase.

Study Timeline

• Status Verified: 2024-12
• Study First Submitted: 2024-12-08
• Study Start: 2024-12-10
• Study First Submitted QC: 2024-12-18
• Last Update Submitted: 2024-12-18
• Study First Posted: 2024-12-24
• Last Update Posted: 2024-12-24
• Primary Completion: 2024-12-31
• Study Completion: 2024-12-31

Recruitment & Eligibility

• Status: NOT_YET_RECRUITING
• Sex: All
• Target Recruitment: 50

Inclusion Criteria

• Actively training as an archer at least twice a week for six months;
• In good health, with no recent injury or illness;
• Over 18 years of age;
• Engagement in all phases of the study.

Exclusion Criteria

• Any injury or illness present at the time of the study;
• Recent history (within six months) of upper extremity injury (shoulder, elbow, or wrist), joint pain, lower extremity joint hypermobility, or neurological/connective tissue disease.
• No training participation
• No consent for study

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Primary Outcome Measures

Name	Time	Method
Assessment of MVC.	Each isometric muscle test lasts 3 seconds. The study is performed three times for each muscle.	Muscle EMG is an assessment of the electrical characteristics during the study, the electrical source of which is the muscle membrane potential, and the measured EMG potentials are measured in μV and the repetition rate of muscle motor unit firing measured in Hz, at the same time of the study.
Muscle stiffness	Each Myoton application lasts 1 sec for one point. Three evaluations of one of the two points for one muscle are performed. It is assumed that the study with recording will last 30 seconds for one muscle.	Muscle stiffness - characteristic resistance to physical contraction, which deforms initially forming. Stiffness (N/m) was calculated as S = amax.mprobe/Δl.