Skip to main content
OpenTrials
Completed

NCT Number: NCT06200493

Effects of Maximum Strength and Acceleration Ability on Performance and Training in Wheelchair Sports

The goal of this observational study is to learn about the relation between grip position and maximal strength and power in wheelchair rugby and basketball athletes. The main question is to investigate the relationship between maximal isometric force, acceleration, and sprint time.

Participants will

* pull in their sport wheelchair against a force transducer * push in their sport wheelchair from a force transducer * accelerate as fast as possible with one push * accelerate as fast as possible over a distance of 20m

Researchers will compare the wheelchair basketball against wheelchair rugby players to see if there is a difference in the parameters.

Completed

Looking for future studies?

Notify Me

Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Swiss Paraplegic Centre

Nottwil, Canton of Lucerne, 6207, Switzerland

About this study

The study duration is approximately 2 hours per participant. First, the screening will be done and the participant does a warmup (~30 min). After that, the participant gets ready for testing, which will last for approximately 90 minutes. In each test, the participants have trial rounds to familiarize with the test procedure. The testing consist of three different exercises, the isometric strength test (IsoMST), the maximum initial push propulsion (MIPP) and the sprint. In the IsoMST a pull setup which was already used in literature and a push setup which has yet to be validated will be used. For the pull setup, the chair of the athlete is fixated on the wall which results in a static situation and allows for an isometric effort. For the push setup, a bumper is installed on the wall, against which the athletes can push with their chair. Different grip position will be measured. In the MIPP test the participants are instructed to accelerate as quickly as possible from standstill with only one push on the rim. The MIPP will be executed with several different grip positions, equal to the IsoMST. For the sprint, 20m will be marked out on a playing court. The athletes are instructed to complete the distance as quickly as possible. Several split times as well as the total time will be measured.

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • squad members or doing more than 3h per week wheelchair basket/rugby training
  • adequately informed and consent confirmed per signature

Exclusion criteria

  • Pregnancy based on anamnesis
  • acute illness, injury, infection, etc., which would impact the measurements.

Treatment and study plan

Primary outcomes

  1. maximal pull force

    Time frame: during 1 second of maximal pulling

    The maximal isometric force produced during pulling in the sport wheelchair

Secondary outcomes

  1. maximal push force

    Time frame: during the first second of maximal pushing

    The maximal isometric force produced during pushing in the sport wheelchair

  2. maximal acceleration

    Time frame: during the first second of acceleration

    The maximal acceleration reached with one push in the sport wheelchair

  3. sprint time

    Time frame: during the last second of the 20 metre sprint

    The time for the linear sprint over 20m in the sport wheelchair

Other outcomes

  1. rate of force development

    Time frame: during the first second of maximal push

    The rate of force development (RFD) in the isometric push and pull test

  2. sprint distance time

    Time frame: during 5 seconds of the linear sprint

    The time for the linear sprint over sub distance in the sport wheelchair

  3. one push maximal speed

    Time frame: during the last second of acceleration

    The maximal speed reached with one push in the sport wheelchair

Sponsors and collaborators

Lead sponsor

Swiss Paraplegic Research, Nottwil

Network

Registry information

Official study title

Investigation of Maximum Strength and Acceleration Ability as a Function of Grip Position and Its Effects on Performance and Training in Wheelchair Sports

Acronym: OPM

Important dates

Study start
2023
Primary completion
2023
Study completion
2023
First posted
Jan 11, 2024
Registry last updated
Aug 6, 2024

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.

Published trials that share one or more normalized conditions with this study.