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Completed

NCT Number: NCT02802800

A Comparison of Land and Water Based Plyometric Training on Fitness of Field Hockey Players

Field hockey players, recruited from clubs in Jamaica, will be randomized to either a water training or land training groups. Persons will be exposed to 6 weeks of plyometric training with two sessions per week. Pre and post test measures will be done for lower limb power, flexibility and agility. Distance covered, pace, heart rates and exertion during a match will also be assessed.

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Key information

Conditions

Age range

16 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

School of Physical Therapy

Kingston, KGN 6, Jamaica

About this study

Plyometric training has been used in a variety of sports to improve power. There is minimal research however regarding its use among hockey players and even less research exploring water based training. International field hockey competitions are played on wet turf and it is felt that water training may be beneficial to these players. The study will explore whether water based plyometrics will prove to have additional benefits compared to land based plyometrics for the Jamaican hockey athletes. The members of the Jamaica hockey clubs will be recruited to participate in this study. Recruitment will be done by the principal investigator Dr. Roopchand-Martin. A total of 34 persons will be recruited and they will be randomly allocated to aquatic or land based training. All training programmes will be conducted at the section of physical therapy and training will be done two times per week for 6 weeks. Baseline assessments will be done independent evaluators for lower limb power using the Standing Broad Jump and Vertical Jump Test, anaerobic power using the Running Anaerobic Sprint test, agility using the Illinois agility and T tests, flexibility using the Sit and Reach Test and performance during game play on wet artificial turf in relation to time-motion analysis for total distance covered, and total time, average and maximum pace, average and maximum heart rate, time in heart zones 1-5, and changes in rate of perceived exertion.

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • All club hockey players over the age of 16 in Kingston and St. Andrew, Jamaica

Exclusion criteria

  • Persons with musculoskeletal injuries of the hip or knee, who have undergone surgery or injections in the past 3 months, or who are under rehabilitation and not at the phase to undergo high intensity training will be excluded.
  • Persons with skin diseases, open wounds and self-reported aqua phobia will also be excluded.

Treatment and study plan

Plyometric Training

Other

Plyometric exercises

Other names: Power training

Primary outcomes

  1. Vertical Jump

    Time frame: 6 weeks

    Vertical jump will be measured using the Brower vertical jump apparatus. The standing height with one arm extended upward is recorded and then the athlete jumps off two feet and the sensor on the bar records the jump height. Each person will complete 3 jumps and the best trial recorded. The jump height recorded is the difference between the jump height and the standing reach height.

  2. Standing Broad Jump

    Time frame: 6 weeks

    Participant will stand with feet together and then jump forward as far as they can. The trials will be completed and the best jump recorded. Distance jumped will be measured with a tape measure.

  3. Illinois Agility Test scores

    Time frame: 6 weeks

    Participants will be asked to run through a course marked out on the hockey field. The best of two trials will be recorded. Timing of the trials will be done using the Brower TC timing gate system.

  4. Agility T test

    Time frame: 6 weeks

    Participants will complete a course that is marked out on the hockey field. Two trials will be done and the best trial time recorded. Timing will be done with a stopwatch

  5. Sit and Reach Distance

    Time frame: 6 weeks

    Participants with sit on a bed with legs outstretched and their back and buttock against a wall. They will place one hand over the other and then be asked to reach forward as far as they can without bending their knees. Three trials will be allowed and the furthers reach distance recorded.

Secondary outcomes

  1. Distance covered during a match

    Time frame: 6 weeks

    Distance run during a a match will be captured with the Polar M400 sports watch GPS trackers which participants will wear during 30 minutes of competition.

  2. Heart rate during a match

    Time frame: 6 weeks

    Heart rate during a 30 minute match will be captured with the Polar M400 sports watch with GPS trackers and heart rate monitor.

Sponsors and collaborators

Lead sponsor

The University of The West Indies

Other

Registry information

Official study title

A Comparison of Land Based and Water Based Plyometric Training Effects on the Physical Fitness of Field Hockey Players in Jamaica

Important dates

Study start
2016
Primary completion
2017
Study completion
2018
First posted
Jun 16, 2016
Registry last updated
Dec 11, 2018

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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