Hobbelen, Hans

Jager-Wittenaar, Harriët

Nijholt, Willemke

Rodenburg, Iris

Sealy, Martine

van der Schans, Cees

Rationale: Sarcopenia is a major problem and is common in community-dwelling elderly. In daily practice, there is need for low cost and easily assessable measurement tools to assess depletion of skeletal muscle (SM) mass, for example as one of the indicators of sarcopenia. Bio-electrical impedance analysis (BIA) is often used to estimate body composition, whereas ultrasound measurement is an upcoming and promising tool, as it is quick, easy to use and inexpensive in comparison with other tools that assess SM mass. Ultrasound could assess site-specific loss of SM mass and determine myoesteatosis. Therefore, in this pilot study we aimed to assess agreement between muscle thickness of rectus femoris (RF) by ultrasound and SM mass by BIA in an older population. Methods: Twenty-six older adults (mean± standard deviation (SD) age 64 ±5.0 y, 62% women) from the Hanze Health and Ageing Study were included. SM mass by BIA was estimated using the Janssen equation. Muscle thickness of RF was assessed by analyzing ultrasound images from the right leg. Two non-parametric tests were used for analysis. Correlation between ultrasound and BIA was assessed with Spearman Rho. Agreement was determined with Kendall’s coefficient of concordance (Kendall’s W). In both tests a score ≥ 0.7 was considered a strong correlation.Results: Mean (±SD) RF thickness was 18.9 (±3.8) mm. Median SM mass (Interquartile range) was 23.5 (20.8-34.7) kg. Correlation between RF thickness and SM mass was moderately positive (Spearman r=0.611; P = 0.001), whereas Kendall’s W showed a strong agreement (W= 0.835; P=0.002).Conclusion: Ultrasound measurement of RF showed an acceptable agreement with skeletal muscle mass assessed by BIA in our sample of older adults. Therefore, ultrasound could be a promising portable tool to estimate muscle size

Hanze UAS repository

AimAssess the agreement between muscle thickness of rectus femoris (RF) by ultrasound and skeletal muscle mass by bio-impedance analysis in an older population. ConclusionUltrasound measurement of RF muscle thickness showed an acceptable agreement with skeletal muscle mass assessed by BIA in our sample of older adults. BackgroundSarcopenia is a major problem and is common in community-dwelling elderly. Therefore, early screening of muscle mass and strength is important for the prevention of sarcopenia. Computed Tomography (CT), Magnetic Resonance Imaging (MRI) and Dual X-ray Absorptiometry (DEXA) are considered reference methods to measure muscle mass. However, these methods are expensive, time consuming, not portable, and trained health care specialist are needed. Moreover, in case of CT and DEXA, the participant is exposed to ionizing radiation.For daily practice, there is need for low cost and easily accessable methods to assess depletion of skeletal muscle (SM) mass. Bio-electrical impedance analysis (BIA) is often used to estimate body composition and can predict SM mass.Besides, BIA is easy to use, repeatableand a low cost method.Results• Mean (±SD) RF thickness was 18.9 (±3.8) mm• Median (Interquartile range) SM mass was 23.5 (20.8-34.7) kg.• Spearman correlation between RF thickness and SM mass was moderately positive (r=0.611; P=0.001) (Figure 2).• Kendall’s W showed a strong agreement (W= 0.835; P=0.002).Methods• Twenty-six adults from the Hanze Health and Ageing Study were included. • SM mass by BIA was estimated using the Janssen equation.1• Muscle thickness of RF was assessed by analyzing ultrasound images from the right leg (Figure 1).• Correlation between ultrasound and BIA was assessed with Spearman Rho. • Agreement was determined with Kendall’s coefficient of concordance (Kendall’s W). References1. Janssen I, Heymsfield SB, Baumgartner RN, Ross R. Estimation of skeletal muscle massby bioelectrical impedanceanalysis. Journal of appliedphysiology. 2000;89(2):465-71.Agreement between rectus femoris thickness byultrasound and skeletal muscle mass by bio-electricalimpedance analysis: a pilot studyI.L. Rodenburg1, W. Nijholt1, M.J. Sealy1,2, C.P. van der Schans1,3,4, J.S.M. Hobbelen1,5, H. Jager-Wittenaar1,21.1Research Group Healthy Ageing, Allied Health Care and Nursing, Hanze University of Applied Sciences, Groningen, The Netherlands, 2Department of Maxillofacial Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands, 3Department of Rehabilitation Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands, 4University of Groningen, University Medical Center Groningen, Department of Health Psychology Research, Groningen, The Netherlands, 5Department of General Practice and Elderly Care Medicine, University of Groningen, University Medical Center Groningen, Groningen, The NetherlandsContact Details  Iris Rodenburg ilrodenburg@hotmail.comHealthy ageingFigure 1. Measurement of muscle thickness of the rectus femorisFigure 2. Correlation between RF thickness and SM mass.Furthermore, ultrasound measurement is an upcoming and promising tool for estimating body composition, as it can assess site-specific loss of SM mass. Ultrasound measurement outcomes have been validated with MRI, CT and DEXA. However, little is known about the agreement between SM mass by BIA and muscle thickness of the rectus femoris (RF).

Agreement between rectus femoris muscle thickness by ultrasound and skeletal muscle mass by bio-electrical impedance analysis: a pilot study

https://research.hanze.nl/ws/files/25122460/Rodenburg_Poster_ESPEN_2017.pdf

Agreement between rectus femoris muscle thickness by ultrasound and skeletal muscle mass by bio-electrical impedance analysis: a pilot study

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