Flywheel Squats Versus Free Weight High Load Squats for Explosive Actions in Football
1 other identifier
interventional
49
1 country
1
Brief Summary
The objective of this randomized controlled trial is to compare the effect of flywheel resistance exercise versus free weight high load low velocity resistance exercise, where both modalities are carried out in a squat exercise with maximal intended mobilization of force contractions and combined with football practices, on 10 meter sprint, countermovement jump (CMJ) and one repeition maximum (1RM) partial 90° range of motion (ROM) squat strength in football players. The investigators 1) hypothesize that resistance exercise using flywheels and barbell free weights (BFW) combined with football practices will equally improve sprint time and jump height, and 2) the investigators hypothesize that squats carried out in a BFW exercise will result in superior improvements in 1RM partial squat compared with flywheel squats.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Jan 2019
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 15, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 15, 2019
CompletedStudy Completion
Last participant's last visit for all outcomes
March 15, 2019
CompletedFirst Submitted
Initial submission to the registry
October 1, 2019
CompletedFirst Posted
Study publicly available on registry
October 2, 2019
CompletedOctober 8, 2019
October 1, 2019
2 months
October 1, 2019
October 3, 2019
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
10 meter sprint time
change in seconds in 10 meter sprint time
from baseline (pre-test) at week 1, to post-test, following six weeks of squat resistance exercise at week 7..
Secondary Outcomes (3)
countermovement jump height
from baseline (pre-test) at week 1, to post-test, following six weeks of squat resistance exercise at week 7.
one repetition maximum partial range of motion squat
from baseline (pre-test) at week 1, to post-test, following six weeks of squat resistance exercise at week 7.
Weight
from baseline (pre-test) at week 1, to post-test, following six weeks of squat resistance exercise at week 7.
Study Arms (3)
Flywheel group
EXPERIMENTALThe players allocated to the flywheel group will perform six weeks of squat resistance exercise using a flywheel device.
Barbell free weight group
EXPERIMENTALThe players allocated to the barbell free weight group will perform six weeks of squat resistance exercise using a an olympic barbell and free weight of high loads.
Control
ACTIVE COMPARATORAll players in all three groups (including control group) will be instructed to adhere to their two-three weekly football practices and preseason matches of their team (\~one weekly match).
Interventions
Over the course of the interventions, all players in all three groups will be instructed to adhere to their two-three weekly football practices and preseason matches of their team (\~one weekly match). The flywheel group performes squat resistance exercise in using a flywheel device, and the barbell free weight group performes squat resistance exercise using an Olympic barbell and weights.
Eligibility Criteria
You may qualify if:
- play at a adult (\>16 years in Norway) football team that has an overall exercise load of two and/or three football practices in addition to one preseason football match a week.
You may not qualify if:
- Injuries that makes resistance exercise unachievable
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Lars Petter Rotvold Nilsen
Tromsø, Troms, 9037, Norway
Related Publications (1)
Sagelv EH, Pedersen S, Nilsen LPR, Casolo A, Welde B, Randers MB, Pettersen SA. Flywheel squats versus free weight high load squats for improving high velocity movements in football. A randomized controlled trial. BMC Sports Sci Med Rehabil. 2020 Oct 2;12:61. doi: 10.1186/s13102-020-00210-y. eCollection 2020.
PMID: 33024564DERIVED
Study Officials
- PRINCIPAL INVESTIGATOR
Svein Arne Pettersen, MSc
UiT The Arctic University of Norway
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- OTHER
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 1, 2019
First Posted
October 2, 2019
Study Start
January 15, 2019
Primary Completion
March 15, 2019
Study Completion
March 15, 2019
Last Updated
October 8, 2019
Record last verified: 2019-10
Data Sharing
- IPD Sharing
- Will not share
Lars Petter R Nilsen and Edvard H Sagelv are the only two researchers with access to the data.