Experimental Study Measuring Power and Execution Speed in 44 Athletes in Push-up Exercise.

Measuring Velocity and Power on Unstable Push-up: Differences Between Trained and Untrained Population.

Investigation of power and speed in relation to the increasing instability in a group of untrained athletes and a group of expert athletes. In this way, the effectiveness of unstable training for different types of athletes can be tested.

Our hypothesis is that as instability increases there is a gradual decrease in power and speed of execution, but not too relevant in the expert group.

Study Overview

• Status: Completed
• Conditions: Power
• Intervention / Treatment: Behavioral: Power and Speed

Detailed Description

Introduction

Strength training using devices that induce varying degrees of instability is widely practiced in numerous contexts and has been credited with benefits in prevention, rehabilitation and general health. Several studies have found a progressive decrease in power as the degree of instability increases. However, it is not known how mildly unstable situations are affected, nor are the differences between trained and untrained subjects.

The purpose of the present study was to compare the effect of different degrees of instability on power and speed of execution in a push-up or arm-bottoms exercise, in trained and untrained subjects.

Method

Maximum power (MP) and mean power (BP), and maximum speed (MV) and mean propulsive speed (VA) of push-up were analyzed in 44 subjects, 24 untrained (176.38±5.35 cm, 76.38±6.85 kg, 2.5±1.5 months experience) and 20 trained (178.45±5.91 cm, 83.4±21.56 kg, 15.5±5.3 months experience), under six conditions of increasing instability: 1) stable, 2) device in suspension: rings, 3) monopodal, 4) device in suspension: TRX®, 5) with hands-on Bosu® and 6) with hands-on TRX® and feet on Bosu®.

• Study Type: Interventional
• Enrollment (Actual): 44
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Spain
  • Madrid, Spain, 28040
    • Facultad Ciencias de la Actividad Física y del Deporte

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 65 years (Adult, Older Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: Male

Description

Inclusion Criteria:

• 2 years of continuous strength training
• No injuries of any kind within the last year
• Perform a regular push-up exercise
• Having ever used an unstable device

Exclusion Criteria:

• Previous injuries
• Never have used unstable devices
• Newcomers to strength training

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Other
• Allocation: Non-Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Trained; Athletes who had at least 2 years of continuous strength training experience, and at least 6 months of training with unstable situations and device	Behavioral: Power and Speed; Analysis of the power and speed of execution in 6 conditions of increasing instability Situation 1 is stable and basic execution. Condition 6 is the most unstable. The participants performed 2 series of 3 repetitions in each of the situations. All the exercises were executed on the same day.
Experimental: Untrained; Athletes who had at least 2 years of continuous strength training experience, but no training experience with unstable situations and devices	Behavioral: Power and Speed; Analysis of the power and speed of execution in 6 conditions of increasing instability Situation 1 is stable and basic execution. Condition 6 is the most unstable. The participants performed 2 series of 3 repetitions in each of the situations. All the exercises were executed on the same day.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Power	Analysis of the power exercised in the execution of each exercise It was measured with a linear encoder.	1 month
Execution Speed	Analysis of the speed exercised in the execution of each exercise It was measured with a linear encoder.	1 month

Collaborators and Investigators

• Sponsor: Universidad Politecnica de Madrid
• Investigators: Study Director: Jesús Rivilla, PhD, Universidad Politécnica de Madrid.; Study Director: Jorge Lorenzo-Calvo, PhD, Universidad Politécnica de Madrid.

Study record dates

Study Major Dates

• Study Start (Actual): November 12, 2019
• Primary Completion (Actual): November 28, 2019
• Study Completion (Actual): December 12, 2019

Study Registration Dates

• First Submitted: April 2, 2020
• First Submitted That Met QC Criteria: January 21, 2021
• First Posted (Actual): January 22, 2021

Study Record Updates

• Last Update Posted (Actual): January 22, 2021
• Last Update Submitted That Met QC Criteria: January 21, 2021
• Last Verified: January 1, 2021

More Information

Terms related to this study

• Keywords: Resistance Training; Strength; Core; Unstable Devices; Suspension Training
• Other Study ID Numbers: Entrenamiento de potencia

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No