NCT06069440

Kinematical and Muscular Fatigue in Swimmers

Completed NA Last updated 5 October 2023

What this trial tests

NA trial testing Swimming Fatigue Task in Healthy in 23 participants. Completed in 1 August 2023.

Timeline

1 February 2022

Primary endpoint
1 March 2022

1 August 2023

Quick facts

Lead sponsor	Universita degli Studi di Genova
Phase	NA
Status	Completed
Study type	INTERVENTIONAL
Allocation	na
Design	single group
Masking	none
Primary purpose	other
Enrollment	23
Start date	1 February 2022
Primary completion	1 March 2022
Estimated completion	1 August 2023
Sites	1 location across Italy

Drugs / interventions tested

• Swimming Fatigue Task

Conditions studied

• Healthy — all drugs for Healthy →

Sponsor

Universita degli Studi di Genova — full company profile →

Who can join

Adults 16 to 24, any sex, with Healthy. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

During a submaximal task, gradual muscle fatigue occurs, which inevitably results in a decline in performance (mechanical failure). Elite athletes are known to employ unconscious compensatory strategies during fatiguing submaximal tasks in an attempt to delay the onset of mechanical failure as long as possible.

The purpose of this study was to gain valuable insight into the strategies used by elite swimmers to cope with mechanical failure. Twenty-two swimmers were subjected to a swim test consisting of swimming as long as possible at a predetermined and controlled pace. A light strip positioned at the bottom of the pool allows athletes to get feedback on which gait to keep. The kinematics (stroke rate, stroke length, and efficiency index) and electrical activity of 10 muscle groups were analyzed and compared at the beginning of the test (non-fatiguing conditions), just before the athlete lost the ability to maintain the predetermined pace (pre-mechanical failure), and after the athlete lost the ability to maintain the pace (mechanical failure). It is hypothesized that as fatigue becomes more pronounced and the point of inability to maintain a predetermined speed is approached, increased EMG activity will occur in key muscles while other muscle groups may show more obvious signs of fatigue. In addition, changes in the rhythm and coordination of upper limb movements may occur.

Publications & conference data

1 peer-reviewed publication reference this trial (live from Europe PMC):

1. Analysis of Kinematic and Muscular Fatigue in Long-Distance Swimmers.
   Puce L, Biz C, Ruaro A, Mori F, et al · · 2023 · cited 4× · PMID 38004269 · DOI 10.3390/life13112129