Assessment of Upper Limb Muscle Activity and the Effect of Manual Therapy on Fatigue, Stiffness and Muscle Activity During Training
Trial Snapshot
- Phase
- Not Applicable
- Status
- Not yet recruiting
- Sponsor
- Medical University of Gdansk
- Enrollment
- 50
- Primary Endpoint
- Assessment of MVC.
Study Overview
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 Design
- Study Type
- Interventional
- Allocation
- Na
- Intervention Model
- Single Group
- Primary Purpose
- Prevention
- Masking
- None
Eligibility Criteria
- Ages
- 18 Years to — (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
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
Outcomes
Primary Outcomes
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.
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.
Secondary Outcomes
No secondary outcomes reported