title: Associations between Handgrip Strength and Ultrasound-Measured Muscle Thickness of the Hand and Forearm in Young Men and Women.
abstract: It is unknown whether muscle size of intrinsic hand muscles is associated with handgrip strength. To investigate the relationships between handgrip strength and flexor muscle size of the hand and forearm, muscle thickness (MT) of 86 young adults (43 men and 43 women) between the ages of 18 and 34 y was measured by ultrasound. Two MTs (forearm radius and forearm ulna MT) in the anterior forearm, two MTs (lumbrical and dorsal interosseous MT) in the anterior hand and handgrip strength were measured on the right side. Linear regression with part (also referred to as semipartial) correlation coefficients revealed that forearm ulna MT positively correlated with handgrip strength in both men (part = 0.379, p = 0.001) and women (part = 0.268, p = 0.002). Dorsal interosseous MT correlated with handgrip strength in women only (part = 0.289, p = 0.001). Our results suggest that the forearm ulna and dorsal interosseous MTs for women and forearm ulna MTs for men are factors contributing to prediction of handgrip strength in young adults.
authors.affiliation: Department of Health, Exercise Science, and Recreation Management, Kevser Ermin Applied Physiology Laboratory, School of Applied Sciences, University of Mississippi, University, Mississippi, USA. Electronic address: t12abe@gmail.com.
authors.forename: Takashi
authors.initials: T
authors.lastname: Abe
authors.affiliation: Department of Health, Exercise Science, and Recreation Management, Kevser Ermin Applied Physiology Laboratory, School of Applied Sciences, University of Mississippi, University, Mississippi, USA.
authors.forename: Brittany R
authors.initials: BR
authors.lastname: Counts
authors.affiliation: Department of Health, Exercise Science, and Recreation Management, Kevser Ermin Applied Physiology Laboratory, School of Applied Sciences, University of Mississippi, University, Mississippi, USA.
authors.forename: Brian E
authors.initials: BE
authors.lastname: Barnett
authors.affiliation: Department of Health, Exercise Science, and Recreation Management, Kevser Ermin Applied Physiology Laboratory, School of Applied Sciences, University of Mississippi, University, Mississippi, USA.
authors.forename: Scott J
authors.initials: SJ
authors.lastname: Dankel
authors.affiliation: Department of Health, Exercise Science, and Recreation Management, Kevser Ermin Applied Physiology Laboratory, School of Applied Sciences, University of Mississippi, University, Mississippi, USA.
authors.forename: Kofan
authors.initials: K
authors.lastname: Lee
authors.affiliation: Department of Health, Exercise Science, and Recreation Management, Kevser Ermin Applied Physiology Laboratory, School of Applied Sciences, University of Mississippi, University, Mississippi, USA.
authors.forename: Jeremy P
authors.initials: JP
authors.lastname: Loenneke
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D005542:Forearm / Q000000981:diagnostic imaging / Q000502:physiology; D006225:Hand / Q000000981:diagnostic imaging / Q000502:physiology; D018737:Hand Strength / Q000502:physiology*; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000379:methods; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008297:Male; D008954:Models, Biological; D015233:Models, Statistical; D053580:Muscle Strength / Q000502:physiology; D018482:Muscle, Skeletal / Q000000981:diagnostic imaging / Q000502:physiology*; D009929:Organ Size / Q000502:physiology; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012727:Sex Characteristics; D014463:Ultrasonography / Q000379:methods*; D055815:Young Adult
keywords: B-Mode ultrasound; Maximum-strength hand muscles