Research
Print page Print page
Switch language
The Capital Region of Denmark - a part of Copenhagen University Hospital
Published

MEASURES OF HIP MUSCLE STRENGTH AND RATE OF FORCE DEVELOPMENT USING A FIXATED HANDHELD DYNAMOMETER: INTRA-TESTER INTRA-DAY RELIABILITY OF A CLINICAL SET-UP

Research output: Contribution to journalJournal articleResearchpeer-review

  1. Injuries in Novice Participants during an Eight-Week Start up CrossFit Program-A Prospective Cohort Study

    Research output: Contribution to journalJournal articleResearchpeer-review

  2. Reliability of the Copenhagen Achilles length measure (CALM) on patients with an Achilles tendon rupture

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Sprint capacity in football players with a previous hamstring injury: an exploratory cross-sectional study

    Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

  4. Isometric exercise for acute pain relief: is it relevant in tendinopathy management?

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Danish Hip Arthroscopy Registry: predictors of outcome in patients with femoroacetabular impingement (FAI)

    Research output: Contribution to journalJournal articleResearchpeer-review

View graph of relations

Background: Evaluation of hip muscle function is considered an important part of the examination and treatment of physically active subjects with hip and groin pain. However, methods to reliably measure explosive hip muscle strength are lacking.

Hypothesis/purpose: The purpose was to investigate the reliability of a clinically available set-up using a fixated handheld dynamometer to test isometric peak force and rate of force development of the hip abductors, adductors, flexors, and extensors.

Methods: Seventeen subjects (males: 9, females: 8, mean aged 25.4 (+/- 4.2) y, with mean body mass of 73.9 (+/- 15.2) kg, and mean height 174.2 (+/- 12.4) cm) were included. One experienced tester performed all measures in a randomized order. Three trials of isometric peak force and early- (0-100 ms) and late-phase (0-200 ms) rate of force development for the hip abductors, adductors, flexors, and extensors were obtained using a fixated handheld dynamometer. The trial with the highest value for each measure was used for analysis. Test-retest sessions were separated by 30 minutes of rest.

Results: No systematic between-session bias were observed for any of the measures. The relative intra-tester reliability (ICC2,1) for peak force, 0-100 ms rate of force development, and 0-200 ms rate of force development ranged from 0.93-0.96, 0.82-0.93, and 0.85-0.92, respectively, corresponding to good reliability for all force measures.

Conclusion: The present study shows that assessment of isometric hip muscle peak force, including early- (0-100 ms) and late-phase (0-200 ms) rate of force development using a fixated handheld dynamometer have good intra-tester reliability for testing of the hip adductors, abductors, flexors and extensors. Thus, in clinical research settings where an isokinetic dynamometer may not always be readily accessible, the present test procedure can be used as a feasible alternative to reliably provide objective of hip muscle function relevant for rehabilitation of patients with hip and groin pain.

Level of evidence: Level 3, Reliability study.

Original languageEnglish
JournalInternational journal of sports physical therapy
Volume14
Issue number5
Pages (from-to)715-723
Number of pages9
ISSN2159-2896
Publication statusPublished - Sep 2019

ID: 58636919