Poor agreement between ultrasound and inbuilt diffusion tensor MRI measures of biceps femoris long head fascicle length

Behan, Fearghal P.; Vermeulen, Robin; Smith, Teresa M.; Arnáiz, Javier; Whiteley, Rodney; Timmins, Ryan G.; Opar, David A.

doi:10.1002/tsm2.58

Cited by 11 publications

(10 citation statements)

References 19 publications

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“…The reliability of measuring the fascicle length in hamstring muscles with DTI and tractography software was reported once 44 . These measurements were limited to the biceps femoris long head.…”

Section: Discussionmentioning

confidence: 99%

“…The reliability of measuring the fascicle length in hamstring muscles with DTI and tractography software was reported once. 44 These measurements were limited to the biceps femoris long head. They reported good reliability and relative large MDC of 3.5 cm, using a simple and non-modifiable inbuilt manufacturer MRI tractography software.…”

Section: Compared To Literaturementioning

confidence: 99%

“…They reported good reliability and relative large MDC of 3.5 cm, using a simple and non-modifiable inbuilt manufacturer MRI tractography software. 44 In our analysis, predefined stopping criteria per muscle, manually selected endpoints (e.g., segmentations of the hamstring muscles) and tractography software specially developed for research purposes were used, resulting in MDCs for respectively fascicle length and orientation of <1 cm and 1°. 28 The semitendinosus muscle is affected by the Nordic hamstring exercise and the biceps femoris long head by the Diver hamstring exercise.…”

Section: Compared To Literaturementioning

confidence: 99%

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Effect of two eccentric hamstring exercises on muscle architectural characteristics assessed with diffusion tensor MRI

Suskens

Secondulfo

Kiliç

et al. 2022

Scandinavian Med Sci Sports

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Objectives To evaluate the effect of a Nordic hamstring exercise or Diver hamstring exercise intervention on biceps femoris long head, semitendinosus and semimembranosus muscle's fascicle length and orientation through diffusion tensor imaging (DTI) with magnetic resonance imaging. Methods In this three‐arm, single‐center, randomized controlled trial, injury‐free male basketball players were randomly assigned to a Nordic, Diver hamstring exercise intervention or control group. The primary outcome was the DTI‐derived fascicle length and orientation of muscles over 12 weeks. Results Fifty‐three participants were included for analysis (mean age 22 ± 7 years). Fascicle length in the semitendinosus over 12 weeks significantly increased in the Nordic‐group (mean [M]: 20.8 mm, 95% confidence interval [95% CI]: 7.8 to 33.8) compared with the Control‐group (M: 0.9 mm, 95% CI: −7.1 to 8.9), mean between‐groups difference: 19.9 mm, 95% CI: 1.9 to 37.9, p = 0.026. Fascicle orientation in the biceps femoris long head over 12 weeks significantly decreased in the Diver‐group (mean: ‐2.6°, 95% CI: −4.1 to −1.0) compared with the Control‐group (mean: −0.2°, 95% CI: −1.4 to 1.0), mean between‐groups difference: ‐2.4°, 95% CI: −4.7 to −0.1, p = 0.039. Conclusion The Nordic hamstring exercise intervention did significantly increase the fascicle length of the semitendinosus and the Diver hamstring exercise intervention did significantly change the orientation of fascicles of the biceps femoris long head. As both exercises are complementary to each other, the combination is relevant for preventing hamstring injuries.

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Section: Discussionmentioning

confidence: 99%

Section: Compared To Literaturementioning

confidence: 99%

Section: Compared To Literaturementioning

confidence: 99%

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Effect of two eccentric hamstring exercises on muscle architectural characteristics assessed with diffusion tensor MRI

Suskens

Secondulfo

Kiliç

et al. 2022

Scandinavian Med Sci Sports

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“…The meta-analyses and subgroup analyses results showed that the eccentric strength training, including NHE, did not show any large effect on the size of biceps femoris FL based on the studies that applied the MLE method and panoramic ultrasound scanning. Additionally, a previous study found a poor agreement between ultrasound assessments using a trigonometric equation method for estimating biceps femoris FL and diffusion tensor MRI measurements on the biceps femoris FL [ 61 ]. However, more comparisons between the existing ultrasound and MRI measurement techniques are needed to having an overall idea about the agreement level between MRI and ultrasound assessments of biceps femoris FL.…”

Section: Discussionmentioning

confidence: 99%

Heterogeneous effects of eccentric training and nordic hamstring exercise on the biceps femoris fascicle length based on ultrasound assessment and extrapolation methods: A systematic review of randomised controlled trials with meta-analyses

et al. 2021

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Objective To systematically review the effects of eccentric training based on biceps femoris fascicle length using ultrasound assessment and extrapolation methods. Design Systematic review and meta-analysis of randomised controlled trials. Data sources CENTRAL, CINAHL Plus with full text, PubMed and OpenGrey databases were searched on 6 July 2021. Eligibility criteria for selecting studies Randomised controlled trials (RCTs) lasting at least four weeks and presenting data about biceps femoris (BF) fascicle length (FL) as an outcome. Method Searching databases, screening studies, performing risk of bias assessments and determining the level of evidence (LoE) for each meta-analysis were applied during the study. PRISMA 2020 statement and Cochrane Handbook for Systematic Reviews of Interventions were used as the guidelines of this systematic review. Results Eight randomised controlled trials included in meta-analyses. Based on the very low and low LoE, eccentric training has small (g = 0.29, 95% CI [-0.26, 0.85]), moderate (g = 0.72, 95% CI [0.17, 1.28]) and large (g = 2.20, 95% CI [0.99, 3.41]) effect sizes (ES) based on manual linear extrapolation (MLE), panoramic ultrasound scanning and trigonometric equation methods, respectively. Similarly, Nordic hamstring exercise (NHE) has small (g = 0.23 [-1.02, 1.47]), small (g = 0.38, 95% CI [-0.50, 1.27]) and large (g = 1.98, 95% CI [0.52, 3.44]) ES based on the MLE, panoramic ultrasound scanning and trigonometric equation methods, respectively. Conclusion ES of eccentric training, including NHE, vary between the MLE, panoramic ultrasound scanning, and equation methods. The relevant scientific community should have a consensus on measurement standards of the BF FL measurements. Further studies can be conducted to compare the effects of eccentric training based on the ultrasound assessment and extrapolation methods.

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“…Accordingly, Franchi and colleagues 45 reported that this approach raises similar BF lh fascicle length estimation compared to extended-field-of-view imaging of the whole fascicle length. Yet, poor within-subject correlations between ultrasound and diffusion tensor MRI of BF lh fascicle length challenge these findings 65 , and it needs further investigations. Second, ultrasound measurements of muscle morphological and architectural characteristics were derived from limited locations of one selected muscle.…”

Section: Limitationsmentioning

confidence: 98%

Specificity of eccentric hamstring training and the lack of consistency between strength assessments using conventional test devices

Wiesinger

Scharinger

Kösters

et al. 2021

Sci Rep

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Hamstring injuries are endemic, but influences of test-specific training and the application of different test methods on decision making remain elusive. Sport-students were randomised to isokinetic (IG) or Nordic hamstring (NG) exercise or a control group (CG) for six weeks. Training and testing procedures were matched to biomechanical parameters. Hamstring strength (EPT), work, muscle soreness (visual analogue scale (VAS)), biceps femoris (BFlh) muscle size and architecture were assessed. Anthropometrics and strength parameters did not differ at baseline. Yet, body mass normalised EPT, and work revealed a significant group × time × device effect, with a significant main effect for devices. Experimental conditions triggered meaningful increases in EPT compared to the control group, but the effects were higher when recorded on the training device. Despite significant group × time interactions, normalised average work on the NHD was only higher in the NG compared to CG of the left leg (+ 35%). No effects were found for BFlh parameters. Hamstrings showed a high training specificity, but adaptations likely remain undetected owing to the low sensitivity of conventional test devices. Moreover, strength increase of ~ 15% does not necessarily have to be reflected in BFlh parameters.

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Poor agreement between ultrasound and inbuilt diffusion tensor MRI measures of biceps femoris long head fascicle length

Cited by 11 publications

References 19 publications

Effect of two eccentric hamstring exercises on muscle architectural characteristics assessed with diffusion tensor MRI

Effect of two eccentric hamstring exercises on muscle architectural characteristics assessed with diffusion tensor MRI

Heterogeneous effects of eccentric training and nordic hamstring exercise on the biceps femoris fascicle length based on ultrasound assessment and extrapolation methods: A systematic review of randomised controlled trials with meta-analyses

Specificity of eccentric hamstring training and the lack of consistency between strength assessments using conventional test devices

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