HealthyCPMSTNCT03078673
Cross Country Poling Specific Motor Skill- and Strength Training.
A study testing training intervention, motor skill training and training intervention, maximal strength training in people with Healthy, run by University of South-Eastern Norway at 1 site in Norway.
Trial summary
Will motor skill- and/or strength training affect technique, work economy and time performance in cross-country poling? Competitive cross-country skiers (age 16- 30) will perform a 10 weeks training intervention. Read more about this study
- Who is it for?
- Ages 16 to 30 yearsHealthy volunteers can take part
- Conditions the study is for
- Healthy
- What is being tested?
- training intervention, motor skill training and training intervention, maximal strength training
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 45 participants
- Where
- 1 siteNorway
- Study dates
- 20 Jun 2017to 1 Jul 2019
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 16 to 30 years
- All sexes
- Healthy volunteers accepted
- Child, Adult
Who may be able to join
- healthy, competitive cross country athletes 16-30 years old
Who cannot join
- contraindications to maximal strength training and strength and endurance testing
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Motor Skill- and Strength Training; Importance for Technique, Work Economy and Time Performance in Cross Country Poling
Will motor skill- and/or strength training affect technique, work economy and time performance in cross-country poling? Competitive cross-country skiers (age 16- 30) will perform a 10 weeks training intervention. They will be randomized in one of the following three groups: poling specific motor skill training 3 times per week in addition to their regular training, maximal strength training 3 times per week in addition to their regular training and a control group who only perform their regular training. Pre- and post intervention, all participants will perform tests in VO2max (running), VO2max (poling), work economy (poling), video and inertial measurement unit (IMU) analyzes of poling technique, time performance test (poling), motor skill tests and maximal strength tests.
Read the detailed description
Motor Skill- and Maximal Strength Training; Importance for Technique, Work Economy and Time Performance in Cross Country Poling Purpose The relative use of poling in classic cross-country skiing has increased over the last years. (Danielsen et al 2015). As a result of this poling performance has become increasingly important for over all classic cross-country skiing performance. Poling performance with best possible technical skills, implying high velocity with a least possible energy cost (C) should thus be beneficial. Previous research (Østerås et al 2002) has shown improved work economy in poling after maximal strength training (MST). To the investigators knowledge, the effect of motor skill training (MOT) on C has not previously been investigated. In this study MOT and MST will therefore be investigated (in two different groups of cross-country skiers), how they may affect poling technique, C, lactate threshold (LT) and poling performance. The results from this study may give further insight and knowledge in scientific based training practice.
The purpose of this study is thus to investigate if:
- MOT results in technical changes in poling?
- MST results in technical changes in poling?
- MOT improves C in poling?
- MST improves C in poling?
- changes in 1-4 improves time performance in poling?
In order to investigate this, competitive cross-country skiers (age 16- 30) will perform a 10 weeks training intervention. They will be randomized in one of the following three groups: poling specific motor skill training (10-12 x 3 repetitions maximum, RM) in specific designed cross country exercises 3 times per week in addition to their regular training. Further, maximal strength training in squat, dead lift, bench press, bench pull and pull down (2-5 x 3 repetitions RM) 3 times per week in addition to their regular training and a control group who only perform their regular training. Pre- and post intervention, all participants will perform tests in VO2max (running), VO2max (poling), work economy (poling), video and IMU analyzes of poling technique, time performance test (poling), motor skill tests and maximal strength tests.
- Conditions
- Healthy
- Being tested
- training intervention, motor skill training, training intervention, maximal strength training, control group
- Keywords
- Cross country poling, motor skill, strength training
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
training intervention, motor skill trainingOther
cross country specific motor skill strength training
training intervention, maximal strength trainingOther
general maximal strength training
control groupOther
regular training
| Study group | Role | What they receive |
|---|---|---|
| Motor skill training | Experimental | training intervention. Poling specific indoor motor skill exercises performed 3 times pr week for 10 weeks in addition to regular training Receives: Other: training intervention, motor skill training |
| Maximal strength training | Experimental | training intervention. Maximal strength exercises performed 3 times pr week for 10 weeks in addition to regular training Receives: Other: training intervention, maximal strength training |
| Control group | Experimental | Only regular training Receives: Other: control group |
What is being measured
The primary outcome is the main question the study is designed to answer.
Time trial poling on a roller ski tarmac track
Seconds used in a 6 km track.
Measured: 10 weeks
Secondary outcomes (11)
Video analyzes of technique
Joint angles. Unique outcome measure.
Measured: 10 weeks
Analyzes of angular velocity by use of IMU (inertial movement devices)
Degree/second by use of gyrometer from the Musclelab System from Ergotest Technology. Unique outcome measure.
Measured: 10 weeks
Analyzes of external force (N) in poles during poling
Force measurements by use of the Musclelab System from Ergotest Technology. Unique outcome measure.
Measured: 10 weeks
Maximal pulldown strength (RM/kg)
Kilos in pulldown. Unique outcome measure.
Measured: 10 weeks
Maximal leggpress strength (RM/kg)
Kilos in leggpress. Unique outcome measure.
Measured: 10 weeks
Maximal pulldown power (Watt)
Watts in pulldown by use of Musclelab.System (Ergotest Technology). Unique outcome measure.
Measured: 10 weeks
Maximal leggpress power (Watt)
Watts in leggpress by use of Musclelab.System (Ergotest Technology). Unique outcome measure.
Measured: 10 weeks
Maximal oxygen uptake (VO2max, ml/kg/min) in running on treadmill
Ergospirometrical incremental (ramp) protocols using Cortex Metalyzer. Unique outcome measure.
Measured: 10 weeks
Maximal oxygen uptake (VO2max, ml/kg/min) in poling on treadmill
Ergospirometrical incremental (ramp) protocols using Cortex Metalyzer. Unique outcome measure.
Measured: 10 weeks
Lactate threshold (mmol/L blood) in poling on treadmill
Measurement of lactate using Lactate Scout (EKF Diagnostics) in different submaximal work periods up to the point reaching warm up values plus 2,3 mmol/L. Unique outcome measure.
Measured: 10 weeks
Poling economy
Measurement of oxygen consumption per meter poling. Unique outcome measure.
Measured: 10 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Mar 2017
- Study start20 Jun 2017
- Primary completion1 Apr 2019
- Study completion1 Jul 2019
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for HealthyStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 45 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of South-Eastern Norway
- Sponsor type
- University, hospital or other
- Collaborators
- Olympiatoppen, The Norwegian Olympic Sports Centre, Oslo, Norway
- Responsible party
- Sponsor
- Investigators
- Arnstein Sunde, MSC, Principal investigator, Telemark UCØyvind Støren, PhD, Study chair, Telemark UC
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03078673
- Sponsor's protocol ID
- CPMST
- Acronym
- CPMST
- Status last verified
- May 2017
- First submitted
- 30 May 2016
- Last updated
- 27 Sep 2021
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: planned published in a peer reviewed journal
Publications
Danielsen J, Sandbakk O, Holmberg HC, Ettema G. Mechanical Energy and Propulsion in Ergometer Double Poling by Cross-country Skiers. Med Sci Sports Exerc. 2015 Dec;47(12):2586-94. doi: 10.1249/MSS.0000000000000723.
PubMed 26110695Osteras H, Helgerud J, Hoff J. Maximal strength-training effects on force-velocity and force-power relationships explain increases in aerobic performance in humans. Eur J Appl Physiol. 2002 Dec;88(3):255-63. doi: 10.1007/s00421-002-0717-y. Epub 2002 Oct 17.
PubMed 12458369
Study at a glance
From the registry record, last updated by the sponsor on 27 Sep 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Motor Skill- and Strength Training; Importance for Technique, Work Economy and Time Performance in Cross Country Poling
- ClinicalTrials.gov ID
- NCT03078673
- Acronym / sponsor ID
- CPMST / CPMST
- Conditions
- Healthy
- Keywords
- Cross country poling, motor skill, strength training
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 45 participants (actual)
- Lead sponsor
- University of South-Eastern NorwayUniversity, hospital or other
- Collaborators
- Olympiatoppen, The Norwegian Olympic Sports Centre, Oslo, Norway
- Study start
- 20 Jun 2017 (actual)
- Primary completion
- 1 Apr 2019 (actual)
- Study completion
- 1 Jul 2019 (actual)
- First posted
- 13 Mar 2017 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Will motor skill- and/or strength training affect technique, work economy and time performance in cross-country poling? Competitive cross-country skiers (age 16- 30) will perform a 10 weeks training intervention. They will be randomized in one of the following three groups: poling specific motor skill training 3 times per week in addition to their regular training, maximal strength training 3 times per week in addition to their regular training and a control group who only perform their regular training. Pre- and post intervention, all participants will perform tests in VO2max (running), VO2max (poling), work economy (poling), video and inertial measurement unit (IMU) analyzes of poling technique, time performance test (poling), motor skill tests and maximal strength tests.
Detailed description
Motor Skill- and Maximal Strength Training; Importance for Technique, Work Economy and Time Performance in Cross Country Poling Purpose The relative use of poling in classic cross-country skiing has increased over the last years. (Danielsen et al 2015). As a result of this poling performance has become increasingly important for over all classic cross-country skiing performance. Poling performance with best possible technical skills, implying high velocity with a least possible energy cost (C) should thus be beneficial. Previous research (Østerås et al 2002) has shown improved work economy in poling after maximal strength training (MST). To the investigators knowledge, the effect of motor skill training (MOT) on C has not previously been investigated. In this study MOT and MST will therefore be investigated (in two different groups of cross-country skiers), how they may affect poling technique, C, lactate threshold (LT) and poling performance. The results from this study may give further insight and knowledge in scientific based training practice.
The purpose of this study is thus to investigate if:
- MOT results in technical changes in poling?
- MST results in technical changes in poling?
- MOT improves C in poling?
- MST improves C in poling?
- changes in 1-4 improves time performance in poling?
In order to investigate this, competitive cross-country skiers (age 16- 30) will perform a 10 weeks training intervention. They will be randomized in one of the following three groups: poling specific motor skill training (10-12 x 3 repetitions maximum, RM) in specific designed cross country exercises 3 times per week in addition to their regular training. Further, maximal strength training in squat, dead lift, bench press, bench pull and pull down (2-5 x 3 repetitions RM) 3 times per week in addition to their regular training and a control group who only perform their regular training. Pre- and post intervention, all participants will perform tests in VO2max (running), VO2max (poling), work economy (poling), video and IMU analyzes of poling technique, time performance test (poling), motor skill tests and maximal strength tests.
Study design
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Motor skill training | Experimental | Other: training intervention, motor skill trainingtraining intervention. Poling specific indoor motor skill exercises performed 3 times pr week for 10 weeks in addition to regular training |
| Maximal strength training | Experimental | Other: training intervention, maximal strength trainingtraining intervention. Maximal strength exercises performed 3 times pr week for 10 weeks in addition to regular training |
| Control group | Experimental | Other: control groupOnly regular training |
Who may qualify
- Ages
- 16 to 30 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
Key inclusion criteria (1 listed)
- healthy, competitive cross country athletes 16-30 years old
Key exclusion criteria (1 listed)
- contraindications to maximal strength training and strength and endurance testing
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| training intervention, motor skill trainingcross country specific motor skill strength training | Other | Motor skill training |
| training intervention, maximal strength traininggeneral maximal strength training | Other | Maximal strength training |
| control groupregular training | Other | Control group |
Primary outcome
Time trial poling on a roller ski tarmac track
Time frame: 10 weeks
Seconds used in a 6 km track.
11 secondary outcomes
Video analyzes of technique
Time frame: 10 weeks
Analyzes of angular velocity by use of IMU (inertial movement devices)
Time frame: 10 weeks
Analyzes of external force (N) in poles during poling
Time frame: 10 weeks
Maximal pulldown strength (RM/kg)
Time frame: 10 weeks
Maximal leggpress strength (RM/kg)
Time frame: 10 weeks
Maximal pulldown power (Watt)
Time frame: 10 weeks
Maximal leggpress power (Watt)
Time frame: 10 weeks
Maximal oxygen uptake (VO2max, ml/kg/min) in running on treadmill
Time frame: 10 weeks
Maximal oxygen uptake (VO2max, ml/kg/min) in poling on treadmill
Time frame: 10 weeks
Lactate threshold (mmol/L blood) in poling on treadmill
Time frame: 10 weeks
Poling economy
Time frame: 10 weeks
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 27 Sep 2021.
- Background: PubMed 26110695Danielsen J, Sandbakk O, Holmberg HC, Ettema G. Mechanical Energy and Propulsion in Ergometer Double Poling by Cross-country Skiers. Med Sci Sports Exerc. 2015 Dec;47(12):2586-94. doi: 10.1249/MSS.0000000000000723.
- Background: PubMed 12458369Osteras H, Helgerud J, Hoff J. Maximal strength-training effects on force-velocity and force-power relationships explain increases in aerobic performance in humans. Eur J Appl Physiol. 2002 Dec;88(3):255-63. doi: 10.1007/s00421-002-0717-y. Epub 2002 Oct 17.
- Individual participant dataSharing planned: Yes. planned published in a peer reviewed journal
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Arnstein Sunde, MSC principal investigator
Telemark UC
Øyvind Støren, PhD study chair
Telemark UC
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing training intervention, motor skill training and training intervention, maximal strength training in people with Healthy, run by University of South-Eastern Norway at 1 site in Norway.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 27 Sep 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Norway. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Time trial poling on a roller ski tarmac track (time frame: 10 weeks). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03078673, which also lists 2 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Sep 2021.