Changes in muscle coordination following upper-body strength training
| ISRCTN | ISRCTN10375612 |
|---|---|
| DOI | https://doi.org/10.1186/ISRCTN10375612 |
| Secondary identifying numbers | N/A |
- Submission date
- 04/02/2015
- Registration date
- 11/02/2015
- Last edited
- 18/02/2022
- Recruitment status
- No longer recruiting
- Overall study status
- Completed
- Condition category
- Musculoskeletal Diseases
Plain English summary of protocol
Background and study aims:
During complex resistance movements such as bench press, large amounts of muscle mass are activated, and multiple muscles are coordinated to achieve the desired movement. The aim of the current study is to evaluate if changes occur in the muscular coordination, following an increase in strength.
Who can participate?
Healthy men at the age of 18-40 with no previous surgery in the shoulder or elbow joint can participate.
What does the study involve?
Participants will be randomly allocated to one of two groups: a training group and a control group (no training). Subjects in the training group perform upper-body strength training for 5 weeks, 3 times a week. Each training session will last approximately 60 minutes and take place at the Center for Sensory-Motor Interaction, Aalborg (Denmark). Both groups will be tested in two sessions: before the start of training and after completion of the training (approx. 3 hours per session). The maximum strength in bench press will be measured and surface electromyograhy (EMG) will be recorded during 3 sets of 8 repetitions at submaximal intensity.
What are the possible benefits and risks of participating?
After completion of the training program, subjects are expected to have gained upper-body strength.
No risks or side effects are known to be associated with the methods used in the present study.
Where is the study run from?
Center for Sensory-Motor Interaction, Aalborg (Denmark).
When is study starting and how long is it expected to run for?
The project will run from September 2014 to March 2014.
How long will the trial be recruiting participants for?
Aalborg University (Denmark)
Who is the main contact?
PhD student Mathias Kristiansen
mvk@hst.aau.dk
Contact information
Scientific
Fredrik Bajersvej 7E
Aalborg
9220
Denmark
| Phone | +4526803461 |
|---|---|
| mvk@hst.aau.dk |
Study information
| Study design | Randomised controlled trial |
|---|---|
| Primary study design | Interventional |
| Secondary study design | Randomised controlled trial |
| Study setting(s) | Other |
| Study type | Other |
| Scientific title | Changes in muscle coordination after 5 weeks of bench press training in previously untrained participants: A randomised controlled trial |
| Study objectives | Following 5 weeks of intensive upper-body strength straining the training group will display: 1. Increased strength in bench press 2. Changes in muscle coordination as measured by the extracted muscle synergies |
| Ethics approval(s) | The North Denmark Region Committee on Health Research Ethics, Denmark, July 2012, ref: N-20120036 |
| Health condition(s) or problem(s) studied | Inter-muscular coordination |
| Intervention | Subjects randomized to the training group will perform upper-body strength training 3 times per week for 5 weeks. Subjects randomized to the control group will not perform any training. |
| Intervention type | Other |
| Primary outcome measure | Upper-body strength, measured as 1RM in bench press. Will be assessed pre and post the 5 week intervention. Muscle coordination, measured by extracting muscle synergies from surface electromyography (EMG). Will be assessed pre and post the 5 week intervention. |
| Secondary outcome measures | Compliance. Will be measured at each training session. |
| Overall study start date | 30/07/2014 |
| Completion date | 20/12/2014 |
Eligibility
| Participant type(s) | Healthy volunteer |
|---|---|
| Age group | Adult |
| Lower age limit | 18 Years |
| Upper age limit | 40 Years |
| Sex | Male |
| Target number of participants | 32 |
| Key inclusion criteria | 1. Males 2. Age 18-40 |
| Key exclusion criteria | 1. No previous surgery in shoulder or elbow joint 2. Regular strength training within 24 months before the study 3. Consumption of alcohol or pain-relieving drugs 24h prior to the experiment 4. Hypertension (>160/>100 mmHg) and heart diseases 5. Addictive or previous addictive behavior defined as the abuse of cannabis, opioids or other drugs 7. Previous neurological or mental disorders 8. Inability to cooperate |
| Date of first enrolment | 30/09/2014 |
| Date of final enrolment | 30/10/2014 |
Locations
Countries of recruitment
- Denmark
Study participating centre
Denmark
Sponsor information
University/education
Fredrik Bajersvej 7D
Aalborg
9220
Denmark
"ROR" |
https://ror.org/04m5j1k67 |
|---|
Funders
Funder type
University/education
No information available
Results and Publications
| Intention to publish date | 31/12/2015 |
|---|---|
| Individual participant data (IPD) Intention to share | No |
| IPD sharing plan summary | Not expected to be made available |
| Publication and dissemination plan | We are intending to publish a conference abstract at the European Conference on Sports Science June, 2015 in Malmø, Sweden. And an original research paper to the Scandinavian journal of Medicine and Science in Sports. |
| IPD sharing plan | Not provided at time of registration |
Study outputs
| Output type | Details | Date created | Date added | Peer reviewed? | Patient-facing? |
|---|---|---|---|---|---|
| Results article | 01/07/2016 | 18/02/2022 | Yes | No |
Editorial Notes
18/02/2022: Publication reference added.
