Effects of Combined Interventions to Optimize Recovery During High-intensity Exercises in Healthy Adults

NCT ID: NCT04508738

Last Updated: 2021-07-02

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 16 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2020-09-10
• Study Completion Date: 2021-06-30

Brief Summary

The objective of the study is to evaluate the effects a complex recovery intervention during the breaks of a repeated sprint test on exercise performance compared to placebo and control conditions. The enhanced recovery package (ERP) includes neck cooling with an iced gel pad, drinking a 6% CHO solution, mouth-rinsing with a 10% CHO, 6 mg･kg -1 caffeine solution, performing submaximal squats and hyperventilating a hyperoxic mixture; all applied in each 3-min break in-between the six 30-s sprints. This intervention will be compared to a placebo and a control condition.

Conditions

Healthy

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: CROSSOVER
• Primary Study Purpose: OTHER
• Blinding Strategy: SINGLE

Study Groups

ERP Intervention

Combination of different methods to improve recovery.

Group Type: EXPERIMENTAL

ERP

Intervention Type: OTHER

The ERP intervention is applied in a randomized and counter-balanced order across visits 2-4 in each 3-min break in-between the six 30-s sprints, with one intervention per visit. The order and timing of the constituents of the interventions will be strictly constant within and between participants.

ERP: 1) neck cooling with an iced gel pad, 2) drinking a ∼ 6% CHO solution, 3) mouth-rinsing with a ∼10% CHO, ∼6 mg ･ kg -1 caffeine solution, 4) performing submaximal squats and 5) hyperventilating a hyperoxic mixture

Control

Passive recovery by sitting on a chair

Group Type: NO_INTERVENTION

No interventions assigned to this group

Placebo

A combination of methods similar to the ERP intervention but at an intensity / mixture supposed to be ineffective at improving recovery.

Group Type: PLACEBO_COMPARATOR

Placebo

Intervention Type: OTHER

The control intervention is applied in a randomized and counter-balanced order across visits 2-4 in each 3-min break in-between the six 30-s sprints, with one intervention per visit. The order and timing of the constituents of the interventions will be strictly constant within and between participants.

1) neck "cooling" with room temperature gel pack, 2) drinking an artificially sweetened solution, 3) mouth-rinsing with artificially sweetened solution (containing no caffeine), 4) performing unloaded squat manoeuvres, 5) deep breaths with room air

Interventions

ERP

The ERP intervention is applied in a randomized and counter-balanced order across visits 2-4 in each 3-min break in-between the six 30-s sprints, with one intervention per visit. The order and timing of the constituents of the interventions will be strictly constant within and between participants.

ERP: 1) neck cooling with an iced gel pad, 2) drinking a ∼ 6% CHO solution, 3) mouth-rinsing with a ∼10% CHO, ∼6 mg ･ kg -1 caffeine solution, 4) performing submaximal squats and 5) hyperventilating a hyperoxic mixture

Intervention Type: OTHER

Placebo

The control intervention is applied in a randomized and counter-balanced order across visits 2-4 in each 3-min break in-between the six 30-s sprints, with one intervention per visit. The order and timing of the constituents of the interventions will be strictly constant within and between participants.

1) neck "cooling" with room temperature gel pack, 2) drinking an artificially sweetened solution, 3) mouth-rinsing with artificially sweetened solution (containing no caffeine), 4) performing unloaded squat manoeuvres, 5) deep breaths with room air

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

• Informed Consent as documented by signature (Appendix Informed Consent Form)
• Healthy
• Male
• Age: 18-40 years
• Body-Mass-Index (BMI): 18.5-24.9 kg･m-2
• Trained individuals: max. Power output ≥ 4.0 Watts･kg-1
• Non-smoking
• Willingness to adhere to the study rules

Exclusion Criteria

• Known or suspected non-compliance, drug or alcohol abuse
• Inability to follow the procedures of the study, e.g. due to language problems, psychological disorders, dementia, etc. of the participants
• Previous enrolment into the current study
• Intake of medications affecting performance or the respiratory, cardiovascular or neuromuscular system
• Acute or chronic illness affecting performance or the respiratory, cardiovascular or neuromuscular system

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 40 Years
• Eligible Sex: MALE
• Accepts Healthy Volunteers: Yes

Sponsors

Swiss Federal Institute of Technology

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Christina M. Spengler, Prof.

Role: PRINCIPAL_INVESTIGATOR

Christina M. Spengler, Prof. Study Principal Investigator Exercise Physiology Lab, Institute of Human Movement Sciences and Sport, ETH Zurich

Locations

ETH Zürich, Exercise Physiology Lab

Zurich, Canton of Zurich, Switzerland

Countries

Switzerland

Other Identifiers

ERP_2020

Identifier Type: -

Identifier Source: org_study_id