NCT03966690

Rate of Leg Curl to Leg Press During Isokinetic Testing

Completed NA Last updated 31 May 2019

What this trial tests

NA trial testing Isokinetic leg extension/-flexion on a legpress device in Muscle Strain in 28 participants. Completed in 15 May 2019.

Timeline

15 August 2018

Primary endpoint
15 February 2019

15 May 2019

Quick facts

Lead sponsor	University of Erlangen-Nürnberg Medical School
Phase	NA
Status	Completed
Study type	INTERVENTIONAL
Allocation	randomized
Design	crossover
Masking	single
Primary purpose	diagnostic
Enrollment	28
Start date	15 August 2018
Primary completion	15 February 2019
Estimated completion	15 May 2019
Sites	1 location across Germany

Drugs / interventions tested

• Isokinetic leg extension/-flexion on a legpress device
• Isokinetic leg extension/-flexion on a legcurl device

Conditions studied

• Muscle Strain — all drugs for Muscle Strain →

Sponsor

University of Erlangen-Nürnberg Medical School

Who can join

Adults 18 to 35, male only, with Muscle Strain. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

The functional condition of the leg muscles is not only relevant to performance in sports, but is also of great importance in health, prevention and rehabilitation, where not only the general strength level is decisive but also the relationship between individual muscle groups. Among other things the H-Q-ratio (strength ratio of "hamstring" muscles to quadriceps muscles) is often used to diagnose possible imbalances. Isokinetic force measurements have established themselves as the gold standard in competitive football. In this context, however, force tests in the open kinetic chain (OKC) have almost exclusively been used so far. Especially force measurements in the closed kinetic chain (CKC) could have a higher relevance regarding functionality. The H-Q-ratio should better be called the flex-ext-ratio in the CKC due to the involvement of the hip muscles. There is little data in the literature on leg force or flex-ext-ratio in CKC. In particular, there is hardly any comparative data for isokinetic measurement systems in the CKC. Using a cross over design and randomly allocating 28 competitive football players into two groups (n=14 each) that either started tests with the leg press or legcurl device, the investigators assumed (1) a significantly lower flex-ext-ratio in the CKC compared to the OKC, (2) a correlation between the isokinetic measurement systems in the OKC and the CKC, and (3) a significant superiority of the leg press to predict functional performance of the lower limbs.

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.