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NCT Number: NCT06747104

Application of Manual Therapy to Archers

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.

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Key information

Conditions

Healthy

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

About this study

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.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

Manual therapy

Other

This technique involves a low-amplitude, high-velocity push on the shoulder and elbow joints with an additional two-second tension

Placebo

Other

Performing manipulations without a two-second preliminary tension of the joint capsule in the shoulder and elbow joints.

Primary outcomes

  1. Assessment of MVC.

    Time frame: 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.

  2. Muscle stiffness

    Time frame: 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.

Study contacts

Contact information is provided by the study sponsor or research team.

Rafał Studnicki, PhD

CONTACT

[email protected]

+48583491509

Sponsors and collaborators

Lead sponsor

Medical University of Gdansk

Other

Registry information

Official study title

Assessment of Upper Limb Muscle Activity and the Effect of Manual Therapy on Fatigue, Stiffness and Muscle Activity During Training

Important dates

Study start
2024
Primary completion
2024
Study completion
2024
First posted
Dec 24, 2024
Registry last updated
Dec 24, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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