Department of Rehabilitation Medicine, Division of Rehabilitation Science, University of Minnesota, MN, USA.
Department of Rehabilitation Medicine, Division of Rehabilitation Science, University of Minnesota, MN, USA; Center for Allied Health Programs, Program in Occupational Therapy, University of Minnesota, Minneapolis, MN, USA.
J Hand Ther. 2018 Jul-Sep;31(3):348-356. doi: 10.1016/j.jht.2017.05.012. Epub 2017 Aug 12.
A cross-sectional clinical measurement study.
Measuring intrinsic hand muscle strength helps evaluate hand function or therapeutic outcomes. However, there are no established normative values in adolescents and young adults between 13 and 20 years of age.
To measure hand intrinsic muscle strength and identify associated factors that may influence such in adolescents and young adults through use of the Rotterdam intrinsic hand myometer.
A total of 131 participants (male: 63; female: 68) between 13 and 20 years of age completed the strength measurements of abductor pollicis brevis, first dorsal interosseus (FDI), deep head of FDI and lumbrical of second digit, flexor pollicis brevis (FPB), and abductor digiti minimi. Two trials of the measurements of each muscle were averaged for analyses. Self-reported demographic data were used to examine the influences of age, sex, and body mass index (BMI) on intrinsic hand muscle strength.
Normative values of intrinsic hand muscle strength were presented by age groups (13, 14, 15-16, 17-18, 19-20 year olds) for each sex category (male, female). A main effect of sex, but not age, on all the muscles on both the dominant (FPB: P = .02, others: P < .001) and non-dominant (FDI: P = .005, FPB: P = .01, others: P < .001) sides was found. A significant effect of BMI was found on dominant (P = .009) and non-dominant abductor pollicis brevis (P = .002). In addition, FDI (P = .005) and FPB (P = .002) were stronger on the dominant side than the non-dominant side.
Intrinsic hand muscle strength may be influenced by different factors including sex, BMI, and hand dominance. A larger sample is needed to rigorously investigate the influence of age on intrinsic strength in male and female adolescents and young adults.
The results provide reference values and suggest factors to be considered when evaluating hand function and therapeutic outcomes in both clinical and research settings. Further study is recommended.
VI.
一项横断面临床测量研究。
测量手部内在肌肉力量有助于评估手部功能或治疗效果。然而，在 13 至 20 岁的青少年和年轻人中，尚无既定的正常参考值。
使用鹿特丹手部内在测力量计测量青少年和年轻人手部内在肌肉力量，并确定可能影响手部内在肌肉力量的相关因素。
共有 131 名参与者（男性 63 名；女性 68 名）完成了大鱼际肌、第一背侧骨间肌（FDI）、FDI 深部头和第二指蚓状肌、拇指短展肌（FPB）和小指展肌的力量测量。每个肌肉的两次测量值的平均值用于分析。使用自我报告的人口统计学数据检查年龄、性别和体重指数（BMI）对手部内在肌肉力量的影响。
为每个性别类别（男性、女性）呈现了按年龄组（13、14、15-16、17-18、19-20 岁）划分的手部内在肌肉力量的正常参考值。在优势手（FPB：P =.02，其他：P <.001）和非优势手（FDI：P =.005，FPB：P =.01，其他：P <.001）上，肌肉力量均存在性别而不是年龄的主要影响。BMI 对优势手（P =.009）和非优势手（P =.002）的拇短展肌有显著影响。此外，优势手的 FDI（P =.005）和 FPB（P =.002）的力量强于非优势手。
手部内在肌肉力量可能受到不同因素的影响，包括性别、BMI 和手优势。需要更大的样本量来严格研究年龄对男性和女性青少年和年轻人内在力量的影响。
结果提供了参考值，并建议在临床和研究环境中评估手部功能和治疗效果时考虑相关因素。建议进一步研究。
VI。
