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Effect of Caffeine Supplementation and Personalized Insoles on Females

Not Applicable
Suspended
Conditions
Caffeine
Biomechanical Parameters
Fatigue
Injuries
Soccer
Females Xy
Interventions
Other: Control condition
Device: Personalized insoles
Dietary Supplement: Caffeine supplementation
Registration Number
NCT04642131
Lead Sponsor
Universidad de Zaragoza
Brief Summary

Several studies have shown the positive effect that caffeine has on athletic performance related variables. Nonetheless, most studies have been developed in males and have not studied the possible effects on biomechanics and related injuries. Moreover, the inclusion of personalized insoles could also affect biomechanical patterns and thus injury incidence that has shown to be higher when athletes are fatigued. Therefore, the aim of the present randomized controlled trial is to evaluate the effect of fatigue, caffeine supplementation and personalized insoles on biomechanics and athletic performance in female adult soccer players.

Detailed Description

Not available

Recruitment & Eligibility

Status
SUSPENDED
Sex
Female
Target Recruitment
16
Inclusion Criteria
  • Females
  • Soccer players who have been competing for at least 3 years
Exclusion Criteria
  • Participants with major injuries in the lower limbs within the 12 months before testing.
  • Participants consuming ephedrine or related medicines

Study & Design

Study Type
INTERVENTIONAL
Study Design
CROSSOVER
Arm && Interventions
GroupInterventionDescription
Control conditionControl conditionStandard insoles without supplementation
Personalized insolesPersonalized insolesPersonalized insoles without supplementation
Caffeine supplementationCaffeine supplementationStandard insoles with caffeine supplementation (3mg/kg)
Primary Outcome Measures
NameTimeMethod
Hip range of motion after fatigue and personalized insolesDuring the intervention

Assessment of hip range of motion in degrees assessed with VICON before and after a fatigue protocol is applied. Data will be collected with the VICON motion capture system.

Repeated sprint ability after fatigue and personalized insolesOne day

Assessment of repeated sprints ability in seconds before and after a fatigue protocol is applied. Data will be collected with photoelectric cells.

Jump height after fatigue and placeboOne day

Assessment of jump height in centimetres before and after a fatigue protocol is applied. Data will be collected with force plates.

Knee range of motion after fatigue and caffeine supplementationDuring the intervention

Assessment of knee range of motion in degrees assessed with VICON before and after a fatigue protocol is applied. Data will be collected with the VICON motion capture system.

Ankle range of motion after fatigue and caffeine supplementationDuring the intervention

Assessment of ankle range of motion in degrees assessed with VICON before and after a fatigue protocol is applied. Data will be collected with the VICON motion capture system.

Ankle flexion moment after fatigue and caffeine supplementationDuring the intervention

Assessment of ankle flexion moment in Nm·kg assessed with VICON before and after a fatigue protocol is applied. Data will be collected with the VICON motion capture system.

Ankle flexion moment after fatigue and personalized insolesDuring the intervention

Assessment of ankle flexion moment in Nm·kg assessed with VICON before and after a fatigue protocol is applied. Data will be collected with the VICON motion capture system.

Jump height after fatigue and personalized insolesOne day

Assessment of jump height in centimetres before and after a fatigue protocol is applied. Data will be collected with force plates.

Hip range of motion after fatigue and caffeine supplementationDuring the intervention

Assessment of hip range of motion in degrees assessed with VICON before and after a fatigue protocol is applied. Data will be collected with the VICON motion capture system.

Hip flexion moment after fatigue and caffeine supplementationDuring the intervention

Assessment of hip flexion moment in Nm·kg assessed with VICON before and after a fatigue protocol is applied. Data will be collected with the VICON motion capture system.

Knee range of motion after fatigue and personalized insolesDuring the intervention

Assessment of knee range of motion in degrees assessed with VICON before and after a fatigue protocol is applied. Data will be collected with the VICON motion capture system.

Ankle range of motion after fatigue and personalized insolesDuring the intervention

Assessment of ankle range of motion in degrees assessed with VICON before and after a fatigue protocol is applied. Data will be collected with the VICON motion capture system.

Hip flexion moment after fatigue and placeboDuring the intervention

Assessment of hip flexion moment in Nm·kg assessed with VICON before and after a fatigue protocol is applied. Data will be collected with the VICON motion capture system.

Ankle flexion moment after fatigue and placeboDuring the intervention

Assessment of ankle flexion moment in Nm·kg assessed with VICON before and after a fatigue protocol is applied. Data will be collected with the VICON motion capture system.

Agility after fatigue and caffeine supplementationOne day

Assessment of agility in seconds before and after a fatigue protocol is applied. Data will be collected with photoelectric cells.

Jump height after fatigue and caffeine supplementationOne day

Assessment of jump height in centimetres before and after a fatigue protocol is applied. Data will be collected with force plates.

Repeated sprint ability after fatigue and caffeine supplementationOne day

Assessment of repeated sprints ability in seconds before and after a fatigue protocol is applied. Data will be collected with photoelectric cells.

Agility after fatigue and personalized insolesOne day

Assessment of agility in seconds before and after a fatigue protocol is applied. Data will be collected with photoelectric cells.

Agility after fatigue and placeboOne day

Assessment of agility in seconds before and after a fatigue protocol is applied. Data will be collected with photoelectric cells.

Repeated sprint ability after fatigue and placeboOne day

Assessment of repeated sprints ability in seconds before and after a fatigue protocol is applied. Data will be collected with photoelectric cells.

Knee flexion moment after fatigue and caffeine supplementationDuring the intervention

Assessment of knee flexion moment in Nm·kg assessed with VICON before and after a fatigue protocol is applied. Data will be collected with the VICON motion capture system.

Hip flexion moment after fatigue and personalized insolesDuring the intervention

Assessment of hip flexion moment in Nm·kg assessed with VICON before and after a fatigue protocol is applied. Data will be collected with the VICON motion capture system.

Knee flexion moment after fatigue and personalized insolesDuring the intervention

Assessment of knee flexion moment in Nm·kg assessed with VICON before and after a fatigue protocol is applied. Data will be collected with the VICON motion capture system.

Knee range of motion after fatigue and placeboDuring the intervention

Assessment of knee range of motion in degrees assessed with VICON before and after a fatigue protocol is applied. Data will be collected with the VICON motion capture system.

Knee flexion moment after fatigue and placeboDuring the intervention

Assessment of knee flexion moment in Nm·kg assessed with VICON before and after a fatigue protocol is applied. Data will be collected with the VICON motion capture system.

Hip range of motion after fatigue and placeboDuring the intervention

Assessment of hip range of motion in degrees assessed with VICON before and after a fatigue protocol is applied. Data will be collected with the VICON motion capture system.

Ankle range of motion after fatigue and placeboDuring the intervention

Assessment of ankle range of motion in degrees assessed with VICON before and after a fatigue protocol is applied. Data will be collected with the VICON motion capture system.

Secondary Outcome Measures
NameTimeMethod
Sleep disturbances after caffeine ingestionImmediately after the intervention

Rate of patients with sleep problems assessed with the Athens sleep questionnaire

Sleep disturbances after placeboImmediately after the intervention

Rate of patients with sleep problems assessed with the Athens sleep questionnaire

Injury incidenceSix months

Association between the primary outcomes and injury incidence registered through the International Federation of Association Football questionnaire (F-MARC)

Sleep disturbances after personalized insolesImmediately after the intervention

Rate of patients with sleep problems assessed with the Athens sleep questionnaire

Trial Locations

Locations (1)

Universidad de Zaragoza

🇪🇸

Zaragoza, Spain

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