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Completed

NCT Number: NCT05170139

The Effects of Caffeine on Physical Performance of Ice Hockey Players

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.

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Key information

Conditions

Caffeine Athletic Performance

Age range

18 year–35 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

Universidad de Zaragoza

Zaragoza, 50012, Spain

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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.

Treatment and study plan

Caffeine

Dietary Supplement

Participants will ingest a drink with 3mg/kg of body weight mixed with carbohydrates

Placebo drink

Dietary Supplement

Participants will ingest the exact same drink without caffeine

Primary outcomes

  1. 35m sprint time (Seconds)

    Time frame: One day (one hour post caffeine consumption)

    Time that participants take to skate 35 meters. Data will be collected with photoelectric cells

  2. Agility test time (Seconds)

    Time frame: One day (one hour post caffeine consumption)

    Time that participants take to perform an agility circuit. Data will be collected with photoelectric cells

  3. Reaction test time (seconds)

    Time frame: One day (one hour post caffeine consumption)

    Time that participants take to complete a reaction test circuit. Data will be collected with photoelectric cells.

Sponsors and collaborators

Lead sponsor

Universidad de Zaragoza

Other

Registry information

Official study title

The Effects of Caffeine on Physical Performance of Ice Hockey Players: A Cross-over Randomized Controlled Trial

Acronym: cafhoc

Important dates

Study start
2021
Primary completion
2021
Study completion
2021
First posted
Dec 27, 2021
Registry last updated
May 24, 2023

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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