NCT05682430

Brief Summary

Majority of the existing studies on the high intensity training of referees are heart rate-based prescription. It is probably the most commonly measured physiological marker used to control or measure exercise intensity in the field.Indeed, speed-based intensity training is more acute than heart rate-based training on the intensity of physical work performed above v/pVO2max. This study the setting of exercise intensity reference the ending velocity of the 30-15 intermittent fitness test.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
44

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Sep 2022

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2022

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

November 30, 2022

Completed
1 month until next milestone

First Posted

Study publicly available on registry

January 12, 2023

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 22, 2023

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 15, 2023

Completed
Last Updated

January 12, 2023

Status Verified

January 1, 2023

Enrollment Period

8 months

First QC Date

November 30, 2022

Last Update Submit

January 10, 2023

Conditions

Physical Fitness

Keywords

high speed interval runningmechanical work

Outcome Measures

Primary Outcomes (4)

  • Physical performance in fitness tests

    Distance covered during dynamic yo-yo test

    3 days before the intervention

  • Physical performance in fitness tests

    The timing consume during the 40m repeat speed ability test

    3 days before the intervention, just 7min before the dynamic yo-yo test

  • Physical performance in fitness tests

    The timing consume during the change of direction test

    3 days before the intervention, just 5min before the 40m repeat speed test

  • Physiological performance in the fitness tests

    The HRmax and HRmean and lactic acid concentration during dynamic yo-yo test

    3days before the intervention

Secondary Outcomes (4)

  • Physical performance in fitness tests

    3 days after the 12 weeks intervention

  • Physical performance in fitness tests

    3 days after the 12 weeks intervention, 7min before the dynamic yo-yo test

  • Physical performance in fitness tests

    3 days after the 12 weeks intervention, 5min before the 40m repeat speed test

  • Physiological performance in the fitness tests

    3 days after the 12 weeks intervention

Other Outcomes (3)

  • Training load

    12 weeks,during each high intensity training

  • Physical performance in fitness tests

    Saturday of the fourth week

  • Physiological performance in fitness tests

    Saturday of the fourth week

Study Arms (2)

Heart rate-based HIIT

ACTIVE COMPARATOR

12 weeks heart-rate based HIIT intervention.

Behavioral: Heart rate based HIIT

VIFT speed-based HIIT with mechanical work

EXPERIMENTAL

12 weeks VIFT speed-based HIIT with mechanical work.

Behavioral: VIFT speed-based HIIT with mechanical work

Interventions

Heart rate based HIITBEHAVIORAL

Week1,90% HRmax long duration HIIT + 90% HRmax long duration HIIT. Week2,90% HRmax long duration HIIT + 90% long duration HRmax HIIT. Week3,90% HRmax long duration HIIT + 90% HRmax long duration HIIT. Week4,90% HRmax long duration HIIT + 90% HRmax long duration HIIT. Week5,90% HRmax short duration HIIT + 90～95% HRmax long duration HIIT. Week6,90% HRmax short duration HIIT + 90～95% HRmax long duration HIIT. Week7,90% HRmax short duration HIIT + 90～95% HRmax long duration HIIT. Week8,90% HRmax short duration HIIT + 90～95% HRmax long duration HIIT. Week9,90～95% HRmax short duration HIIT + 90～95% HRmax short duration HIIT. Week10,90～95% HRmax short duration HIIT + 90～95% HRmax short duration HIIT. Week11,90～95% HRmax short duration HIIT + 90～95% HRmax short duration HIIT. Week12,90～95% HRmax short duration HIIT + 90～95% HRmax short duration HIIT.

Heart rate-based HIIT
VIFT speed-based HIIT with mechanical workBEHAVIORAL

Week1,Wednesday 65% VIFT HIIT, saturday 65% VIFT HIIT. Week2,Wednesday 65% VIFT HIIT, saturday 65% VIFT HIIT. Week3,Wednesday 67.5% VIFT HIIT, saturday 67.5% VIFT HIIT. Week4,Wednesday 67.5% VIFT HIIT, saturday 67.5% VIFT HIIT. Week5,Wednesday 70% VIFT HIIT, saturday 90% VIFT HIIT. Week6,Wednesday 70% VIFT HIIT, saturday 90% VIFT HIIT. Week7,Wednesday 72.5% VIFT HIIT, saturday 92.5% VIFT HIIT. Week8,Wednesday 72.5% VIFT HIIT, saturday 92.5% VIFT HIIT. Week9,Wednesday 92.5% VIFT HIIT, saturday 100% VIFT HIIT. Week10,Wednesday 92.5% VIFT HIIT, saturday 100% VIFT HIIT. Week11,Wednesday 95% VIFT HIIT, saturday 105% VIFT HIIT. Week12,Wednesday 95% VIFT HIIT, saturday 105% VIFT HIIT.

VIFT speed-based HIIT with mechanical work

Eligibility Criteria

Age23 Years - 45 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • the female referees who register as reserve national degree and above for 2022 and 2023.

You may not qualify if:

  • Injured
  • Any reason can not complete all the required training sessions.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Lingling ZHANG

Qingdao, Shandong, 266000, China

RECRUITING

Related Publications (4)

  • Buchheit M, Laursen PB. High-intensity interval training, solutions to the programming puzzle: Part I: cardiopulmonary emphasis. Sports Med. 2013 May;43(5):313-38. doi: 10.1007/s40279-013-0029-x.

    PMID: 23539308RESULT

  • Buchheit M, Laursen PB. High-intensity interval training, solutions to the programming puzzle. Part II: anaerobic energy, neuromuscular load and practical applications. Sports Med. 2013 Oct;43(10):927-54. doi: 10.1007/s40279-013-0066-5.

    PMID: 23832851RESULT

  • Billat LV. Interval training for performance: a scientific and empirical practice. Special recommendations for middle- and long-distance running. Part II: anaerobic interval training. Sports Med. 2001 Feb;31(2):75-90. doi: 10.2165/00007256-200131020-00001.

    PMID: 11227980RESULT

  • Krustrup P, Bangsbo J. Physiological demands of top-class soccer refereeing in relation to physical capacity: effect of intense intermittent exercise training. J Sports Sci. 2001 Nov;19(11):881-91. doi: 10.1080/026404101753113831.

    PMID: 11695510RESULT

Related Links

Study Officials

  • Lingling ZHANG

    University Principal Investigator

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Lingling ZHANG, PhD

CONTACT

+8613685326677qdzhll@hotmail.com

KIM Geok Soh, Professor

CONTACT

0397698153kims@upm.edu.my

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
BASIC SCIENCE
Intervention Model
FACTORIAL
Model Details: In this experiment, the experimental groups conduct the speed-based HIIT with mechanical work. In contrast, the control group take heart rate based HIIT.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

November 30, 2022

First Posted

January 12, 2023

Study Start

September 1, 2022

Primary Completion

April 22, 2023

Study Completion

July 15, 2023

Last Updated

January 12, 2023

Record last verified: 2023-01

Data Sharing

IPD Sharing
Will not share

Since this is my doctoral thesis experiment,I won't share it until I graduate.

Locations

CN(1)