Plain English Summary
Background and study aims
Many handball players have shoulder pain while playing handball. The throwing shoulder is vulnerable for injuries due to repetitive throwing and tackles. A recent study demonstrated that it is possible to reduce the problem by more than 25%. Despite this reduction in shoulder problems, less than one-third of the coaches and players would continue using the whole program the next season, because 'the program was too time-consuming'. Shoulder external rotation weakness is assumed to be a risk factor for shoulder injuries in handball. Therefore, the compressed program to increase external rotation strength was developed. The aim of this study is to examine the effect of the new, compressed shoulder external strength program in youth handball.
Who can participate?
Handball players aged 16 to 18 who play in clubs located in or close to Oslo
What does the study involve?
Six female and male youth 16-18 handball teams will be invited to participate in this study. The researchers will randomly allocate within each team to one exercise group and one control group. The exercise program will be implemented after regular handball training three times a week for eight weeks in the intervention group. The program consists of two shoulder external rotation strength exercises with variations and progressions, aimed to increase shoulder external rotation strength. One dedicated physiotherapist will deliver and supervise the program in the teams once or twice a week. The program will take about ten minutes to complete. Both groups will continue doing their regular training.
What are the possible benefits and risks of participating?
Increasing shoulder external rotation strength, which is a risk factor for shoulder injuries in handball, is a possible benefit in the intervention group. All the participants will be offered the training program after the intervention is finished. There are no known risks of participating.
Where is the study run from?
Oslo Sports Trauma Research Center / Norwegian School of Sport Science (Norway)
When is the study starting and how long is it expected to run for?
January 2019 to December 2020
Who is funding the study?
The Oslo Sports Trauma Research Center has been established at the Norwegian School of Sport Sciences through generous grants from the Royal Norwegian Ministry of Culture, the South-Eastern Norway Regional Health Authority, the International Olympic Committee, the Norwegian Olympic Committee & Confederation of Sport, and Norsk Tipping AS
Who is the main contact?
Mrs Hilde Fredriksen
hilde.fredriksen@nih.no
Trial website
Contact information
Type
Scientific
Primary contact
Mrs Hilde Fredriksen
ORCID ID
http://orcid.org/0000-0002-5158-7716
Contact details
Kikkutveien 4b
Oslo
0491
Norway
+47 (0)99709997
hilde.fredriksen@nih.no
Additional identifiers
EudraCT number
Nil known
ClinicalTrials.gov number
Nil known
Protocol/serial number
Nil known
Study information
Scientific title
Evaluation of a compressed program for shoulder external rotation strength in handball. A randomized controlled study among adolescent handball players
Acronym
Study hypothesis
The aim of this study is to examine the effect of a new, compressed shoulder ER strength program in handball.
Ethics approval
Approved 17/09/2019, Norwegian regional committee for medical and health research ethics, South East region (REK sør-øst, Pb 1130 Blindern, 0318 Oslo, Norway; Email: rek-sorost@medisin.uio.no), ref: 2019/1301/REK sør-øst
Study design
Randomized controlled trial
Primary study design
Interventional
Secondary study design
Randomised controlled trial
Trial setting
Other
Trial type
Other
Patient information sheet
Only available in Norwegian. Please use the contact details to request a participant information sheet
Condition
Shoulder strength training in healthy adolescent handball players
Intervention
Six female and male youth 16-18 handball teams will be invited to participate in this study. The researchers will conduct single randomization within each team to one exercise group and one control group. The exercise program will be implemented after regular handball training three times a week for eight weeks in the intervention group. The program consists of two shoulder external rotation (ER) strength exercises with variations and progressions, aimed to increase shoulder ER strength. One dedicated physiotherapist will deliver and supervise the program in the teams once or twice a week. The program will take about ten minutes to complete. Both groups will continue doing their regular training.
Intervention type
Other
Phase
Drug names
Primary outcome measure
Shoulder external rotation strength is measured using a handheld dynamometer (MicroFET, Hoggan Health Industries, Salt Lake City, Utah, USA) at baseline and after 8 weeks of intervention
Secondary outcome measures
Shoulder internal rotation range of motion is measured using a digital goniometer (Easyangle, Meloq AB, Stockholm, Sweden) at baseline and after 8 weeks of intervention
Overall trial start date
01/01/2019
Overall trial end date
31/12/2019
Reason abandoned (if study stopped)
Eligibility
Participant inclusion criteria
1. Handball players
2. Aged 16 to 18 years
3. Play handball in clubs located in or close to Oslo
Participant type
Healthy volunteer
Age group
Other
Gender
Both
Target number of participants
72
Total final enrolment
92
Participant exclusion criteria
Teams who participated in a similar study last year
Recruitment start date
23/09/2019
Recruitment end date
03/10/2019
Locations
Countries of recruitment
Norway
Trial participating centre
Oslo Sports Trauma Research Center/ Norwegian School of Sport Science
Sognsveien 220
Oslo
0806
Norway
Sponsor information
Organisation
Oslo Sports Trauma Research Center, Norwegian School of Sports Sciences
Sponsor details
Sognsveien 220
Oslo
0863
Norway
+47 (0)23 26 20 00
postmottak@nih.no
Sponsor type
University/education
Website
Funders
Funder type
Government
Funder name
The Oslo Sports Trauma Research Center has been established at the Norwegian School of Sport Sciences through generous grants from the Royal Norwegian Ministry of Culture, the South-Eastern Norway Regional Health Authority, the International Olympic Committee, the Norwegian Olympic Committee & Confederation of Sport, and Norsk Tipping AS
Alternative name(s)
Funding Body Type
Funding Body Subtype
Location
Results and Publications
Publication and dissemination plan
The researchers plan to publish the results in 2020.
IPD sharing statement
The datasets generated during and/or analysed during the current study are/will be available upon request from Hilde Fredriksen (hilde.fredriksen@nih.no). De-identified raw data will be available from the date the article is published. The data will be available for meta-analyses by researchers doing the same type of studies, looking at shoulder strength in athletes.
Intention to publish date
01/09/2020
Participant level data
Available on request
Basic results (scientific)
Publication list
Publication citations
Additional files
- ISRCTN19694168_PROTOCOL_18Sep19.docx Uploaded 18/09/2019
- ISRCTN19694168_PROTOCOL_29Jun20.docx Uploaded 29/06/2020