Ting Wang, Hanqing Xu, Chenyuan Li, Fan Zhang, Jiaoping Wang
Dynamic insights into research trends and trajectories in early reading: an analytical exploration via dynamic topic modeling
Frontiers in psychology
assessment quantification skeletal muscle within aging population vital diagnosis treatment injurydisease prevention clinical availability assessing muscle quality diagnostic ultrasound presents opportunity utilized screening tool functionlimiting diseases however relationships muscle echogenicity clinical functional assessments require authoritative analysis thus aimed synthesize literature assess relationships skeletal muscle echogenicity physical function older 60 years adults b perform pooled analyses relationships skeletal muscle echogenicity physical function c perform subanalyses determine betweenmuscle relationships cinahl embase medline pubmed web science databases systematically searched identify articles relating skeletal muscle echogenicity physical function older adults riskofbias assessments conducted along funnel plot examination metaanalyses without subanalyses individual muscles performed utilizing fishers z transformation common measures physical function fishers z backtransformed pearsons r interpretation fiftyone articles n 5095 female 2759 male 2301 725 58 years mean sd 1 study provide sex descriptors extracted review previously unpublished data obtained authors 13 studies rectus femoris n 34 isometric knee extension strength n 22 accessed muscle physical qualities respectively relationship quadriceps echogenicity knee extensor strength moderate n 2924 r 036 95 confidence interval 038 032 p 0001 metaanalyses grip strength walking speed sittostand timed upandgo resulting slightly weaker correlations r 034 023 p 0001 subanalyses determined minimal differences predictive ability muscle groups although combining muscles eg rectus femoris vastus lateralis often resulted stronger correlations maximal strength correlations modest affordable portable noninvasive ultrasonic assessment muscle quality consistent predictor physical function older adults minimal betweenmuscle differences suggest echogenicity estimates muscle quality systemic therefore practitioners may able scan single muscle estimate fullbody skeletal muscle qualitycomposition researchers consider combining multiple muscles strengthen model