NCT04693481

Brief Summary

The current study is going to investigate the nature exposure intervention on the ability of self-regulation and decision-making skills among mentally fatigued soccer players. The subjects will be instructed to view some nature photos, which can facilitate the recovering process for directed attention and the ability of self-regulation. Thus, to see the improvement in decision-making skills.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Mar 2021

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

December 28, 2020

Completed
8 days until next milestone

First Posted

Study publicly available on registry

January 5, 2021

Completed
2 months until next milestone

Study Start

First participant enrolled

March 10, 2021

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 5, 2021

Completed
15 days until next milestone

Study Completion

Last participant's last visit for all outcomes

June 20, 2021

Completed
Last Updated

June 30, 2021

Status Verified

June 1, 2021

Enrollment Period

3 months

First QC Date

December 28, 2020

Last Update Submit

June 26, 2021

Conditions

Keywords

decision-making skillsself-regulationmental fatiguesoccer performance

Outcome Measures

Primary Outcomes (3)

  • Heart Rate Variability (HRV) will be the indicator of physiological self-regulation and measured by Polar H10 HRV belt

    Before and after the intervention, the HRV will be measured to see the differences.

    2 weeks

  • State anxiety will be the indicator of psychological self-regulation and measured by Competitive State Anxiety Inventory-2

    Before and after the intervention, the state anxiety will be measured to see the differences. The arrange of scores of Competitive State Anxiety Inventory-2 is 9-36. The higher scores mean higher cognitive and physical anxiety, as well as state confidence.

    2 weeks

  • The soccer decision-making skills will be measured by TacticUP soccer performance online system

    Before and after the intervention, the decision-making skills will be measured to see the differences. The arrange of score in TacticUp is 0-100. The higher score, the better decision-making skill.

    2 weeks

Study Arms (4)

experimental group: 5 seconds for each photo

EXPERIMENTAL

receive the intervention, which is viewing each nature photo for 5 seconds

Other: nature exposure

experimental group: 15 seconds for each photo

EXPERIMENTAL

receive the intervention, which is viewing each nature photo for 15 seconds

Other: nature exposure

experimental group: 30 seconds for each photo

EXPERIMENTAL

receive the intervention, which is viewing each nature photo for 30 seconds

Other: nature exposure

control group

NO INTERVENTION

not receive the intervention, which is viewing each nature photo for 0 seconds.

Interventions

Nature exposure has different ways, such as walk in the real nature environment; viewing nature photos. Two main reasons make this study will not use the real nature environment: (1) the limitation of time before or amid the soccer competition; (2) the pandemic situation does not allow people go outside as frequently as before. Therefore, the current study will select some nature photos, which are restorative environments and can restore directed attention to counteract mental fatigue.

experimental group: 15 seconds for each photoexperimental group: 30 seconds for each photoexperimental group: 5 seconds for each photo

Eligibility Criteria

Age18 Years - 24 Years
Sexmale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • The selection of the participants will be every position without the goalkeeper. The age of them will be at 18-24 years. Only male players will be selected. Players should have at least played from the senior school and have 3 years' training experience.

You may not qualify if:

  • The study will exclude color blindness, for the Stroop task will involve color. Self-reports should be free of any known disease or sleep disorder and not currently taking any medication.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Sun He

Zhengzhou, Henan, 450000, China

Location

MeSH Terms

Conditions

Mental FatigueSelf-Control

Condition Hierarchy (Ancestors)

FatigueSigns and SymptomsPathological Conditions, Signs and SymptomsBehavioral SymptomsBehaviorSocial Behavior

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Randomly assign subjects into the experimental groups and the control group
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator

Study Record Dates

First Submitted

December 28, 2020

First Posted

January 5, 2021

Study Start

March 10, 2021

Primary Completion

June 5, 2021

Study Completion

June 20, 2021

Last Updated

June 30, 2021

Record last verified: 2021-06

Locations