The Effects of Caffeine on Physical Performance of Ice Hockey Players

Not Applicable

Completed

• Conditions: Caffeine; Athletic Performance
• Interventions: Dietary Supplement: Placebo drink; Dietary Supplement: Caffeine

• Registration Number: NCT05170139
• Lead Sponsor: Universidad de Zaragoza

Brief Summary

To date, only one study has evaluated the effect of caffeine supplementation on athletic performance in ice hockey players finding a lack of ergogenic effect. This lack of effect is surprising as caffeine has been suggested to be an effective and safe nutritional supplement to improve physical performance in both trained and untrained individuals. Therefore, the aim of the present study is to evaluate the effect of acute caffeine ingestion (3mg/kg body mass). Thirteen elite adult ice-hockey male players will perform specific ice hockey performance tests in two separate days. On both occasions players will ingest 330 ml of water with lemon powertabs isostar® (86 kcal / 19g of carbohydrates) tablets, which will include in one of these days 3 mg/kg body mass of anhydrous caffeine. Players will perform a 35-m sprint, an agility test (Weave agility - slalom with puck), and a reaction test.

Detailed Description

Not available

Study Timeline

• Study Start: 2021-03-01
• Primary Completion: 2021-04-30
• Study Completion: 2021-05-30
• Study First Submitted: 2021-12-09
• Study First Submitted QC: 2021-12-09
• Study First Posted: 2021-12-27
• Status Verified: 2023-05
• Last Update Submitted: 2023-05-23
• Last Update Posted: 2023-05-24

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Male
• Target Recruitment: 13

Inclusion Criteria

• Over 18 years,
• Male
• Play in the Spanish ice hockey first division.

Exclusion Criteria

• Participants taking drugs containing ephedrine or antibiotics.
• Having suffered a musculoskeletal injury in the 3 months prior to the tests.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Control condition	Placebo drink	Participants will ingest a drink of carbohydrates without caffeine
Caffeine	Caffeine	Dietary Supplement: Caffeine supplementation Participants will ingest caffeine in liquid form (3mg/kg) with carbohydrates.

Primary Outcome Measures

Name	Time	Method
35m sprint time (Seconds)	One day (one hour post caffeine consumption)	Time that participants take to skate 35 meters. Data will be collected with photoelectric cells
Agility test time (Seconds)	One day (one hour post caffeine consumption)	Time that participants take to perform an agility circuit. Data will be collected with photoelectric cells
Reaction test time (seconds)	One day (one hour post caffeine consumption)	Time that participants take to complete a reaction test circuit. Data will be collected with photoelectric cells.

Trial Locations

Locations (1)

Universidad de Zaragoza; 🇪🇸 Zaragoza, Spain