Clinical trial NCT05485506: Multimodal Exercises on Sprint Performance of Rugby Players
Official title: Effects of a Multimodal Exercise Program on the Kinematics and Sprint Performance of Young Rugby Players: an Experimental Study.
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Exercise Training
Rugby
Adolescent
Keywords: sprint performance
strength training
sprint kinematics
Lead sponsor: University of the Balearic Islands
Sponsor class: OTHER
First posted: 2022-08-03
Enrollment: 24
Sex: ALL
Minimum age (years): 14
Maximum age (years): 18
Standard ages: CHILD
ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: This study is designed to evaluate the effects of a multimodal exercise program in the sprint performance and kinematics of adolescent rugby players. For this, an experimental study with an intervention group (IG) and a control group (CG) is designed. During 6 weeks of the 2022-2023 preseason of rugby seven, IG will include a multimodal exercise program in their training routine. Meanwhile, CG will maintain their training routine. The study will be developed in the Sport High Performance Centre of Balearic Islands during the season of rugby seven (from August to September, 2022). All rugby athletes from under-16 and under-18 autonomic rugby teams will be invited to participate in this study throughout an email invitation from their regional rugby federation. Prior to the beginning of the study, all participants will sign the inform consent, or their legal tutors in case of minors. The Ethical Committee of the local university approved this study (278CER22) according to the Declaration of Helsinki.

One week before intervention period, sociodemographic and sportive data will be registered (age, sex, body mass, height, and sport experience). Body mass and height will be evaluated with a ±100-g precision digital weight scale (Tefal, France) and a t201-t4 adult height scale (Asimed, Spain), respectively. Also, the rugby players will complete a familiarization process consisting on a standardized warm up and 3 progressive sprints (i.e. 30 m at 50%, 70% and 90% of maximal effort).

All testing procedure (pre-test and post-test) will be completed at a similar daytime (between 17h and 19h) on the same natural grass field. The test procedure listed in our study will consist on two maximal 30-m sprints to obtain mechanical variables of horizontal force-velocity profile and kinematics during sprinting.

Players from IG will perform a multimodal exercise program two days per week during six weeks. This program will include running technical drills, exercises for lumbopelvic stabilization and resisted sprints. This program will be supervised by two experts in this field.

The investigators hypothesize that those rugby players who add the multimodal exercise program to their training routine will increase mechanical and kinematics variables of sprint performance.


Eligibility criteria: Inclusion Criteria:

* to have at least 14 years old
* to have at least 2 years of experience as rugby player

Exclusion Criteria:

* to have sustained a lower limb or lumbopelvic injury during the previous 6 months to start of the study
* to have sustained a lower limb or spine surgery during the previous 12 months to start of the study

Primary outcomes:
measure: Sprint performance
timeFrame: Change from baseline and between group differences in sprint performance after the intervention period of 6 weeks
measure: Force-Velocity Profile (F-V)
timeFrame: Change from baseline and between group differences in horizontal force-velocity profile after the intervention period of 6 weeks
measure: Sprint spatiotemporal and kinematics
timeFrame: Change from baseline and between groups in sprint spatiotemporal and kinematics at 6 weeks
Secondary outcomes:
Other outcomes:
Locations:
city: Palma De Mallorca
country: Spain
facility: Sport High Performance Centre of Balearic Islands
state: Islas Baleares
Study officials:
affiliation: University of the Balearic Islands
name: Natalia Romero Franco, PhD
role: STUDY_DIRECTOR
References:
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