Does a Validated Circum-menarcheal Arm Bone-Loading Index Predict Post-menarcheal Muscle Function in Adolescent Females?

IF 1.9 4区医学 Q4 NEUROSCIENCES

Journal of musculoskeletal & neuronal interactions Pub Date : 2026-06-01

Brian Josephson, Timothy Chan, Carol A Sames, Tamara A Scerpella, Jodi N Dowthwaite

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引用次数: 0

Abstract

Objective: In this exploratory analysis, we evaluated our validated 3-year circum-menarcheal arm bone loading index (ᴀʀᴍBLI) as a predictor of upper extremity muscle function indices in post-menarcheal females.

Methods: Forty-eight participants met inclusion criteria for non-dominant arm analyses, 1 to 2.5 years post-menarche: 1) menarche date (ɢʏɴAGE: yrs, menarche-centered age); 2) ᴀʀᴍBLI (3-yrs prior loading exposure); 2) grip strength (kg; primary outcome), 3) Biodex peak torques (Nm: shoulder, elbow; flexion, extension; secondary outcomes), 4) DXA arm non-bone fat-free mass (ᴀʀᴍNBꜰꜰᴍ, kg), 5) anthropometry [ulna length (mm), height (cm), weight (kg)]. Multiple linear regression evaluated muscle function in the total sample (n=48), gymnasts (n=24), and non-gymnasts (n=24), accounting for key factors: 1) whole-body model (ɢʏɴAGE, height, weight, ᴀʀᴍBLI); 2) hypertrophy model (ɢʏɴAGE, ulna length, ᴀʀᴍNBꜰꜰᴍ, ᴀʀᴍBLI).

Results: After accounting for key factors, ᴀʀᴍBLI was an independent negative predictor of grip strength in the total sample [hypertrophy model B= -0.202, p=0.029] and non-gymnast subsample [hypertrophy model B= -0.935, p=0.030; whole-body model B= -1.127, p=0.005]. Conversely, ᴀʀᴍBLI was an independent positive predictor of shoulder flexion peak torque in the total sample [whole-body model B= +0.270, p=0.036].

Conclusions: Despite prior work showing ᴀʀᴍBLI predicts ᴀʀᴍNBꜰꜰᴍ, ᴀʀᴍBLI showed inconsistent predictive value for muscle function indices.

本刊更多论文

经验证的环月经露脊臂骨负荷指数能否预测青春期女性月经露脊后的肌肉功能？

目的：在这一探索性分析中，我们评估了我们验证的3年月经初峰后手臂骨负荷指数（_ _ _ _ _ _ _ BLI）作为月经初峰后女性上肢肌肉功能指数的预测因子。方法：48名受试者符合非优势组分析的纳入标准，月经初潮后1至2.5年：1)月经初潮日期（年龄：岁，以月经初潮为中心的年龄）；2) i（3年之前的负荷暴露）；2)握力(公斤;主要结果),3)Biodex峰力矩(Nm:肩、肘;弯曲,扩展;二次结果),4)测定仪手臂non-bone脱脂质量(ᴀʀᴍNBꜰꜰᴍ,公斤),5)人体测量学[尺骨长度(毫米),身高(厘米)、体重(公斤)]。多元线性回归评估了总样本（n=48）、体操运动员（n=24）和非体操运动员（n=24）的肌肉功能，考虑了关键因素：1)全身模型（年龄、身高、体重、体型指数）；2)肥大模型(ɢʏɴ年龄、尺骨长度,ᴀʀᴍNBꜰꜰᴍ,ᴀʀᴍBLI)。结果：在考虑关键因素后，在总样本[肥大模型B= -0.202, p=0.029]和非体操亚样本[肥大模型B= -0.935, p=0.030]中，i是握力的独立负向预测因子；全身模型B= -1.127, p=0.005]。相反，在整个样本中，i是肩关节屈曲峰值扭矩的独立阳性预测因子[全身模型B= +0.270, p=0.036]。结论：尽管先前的研究表明，在肌肉功能指标方面，尽管有数据显示，在肌肉功能指标方面，有不一致的预测价值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of musculoskeletal & neuronal interactions NEUROSCIENCES-PHYSIOLOGY

CiteScore

3.40

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Musculoskeletal and Neuronal Interactions (JMNI) is an academic journal dealing with the pathophysiology and treatment of musculoskeletal disorders. It is published quarterly (months of issue March, June, September, December). Its purpose is to publish original, peer-reviewed papers of research and clinical experience in all areas of the musculoskeletal system and its interactions with the nervous system, especially metabolic bone diseases, with particular emphasis on osteoporosis. Additionally, JMNI publishes the Abstracts from the biannual meetings of the International Society of Musculoskeletal and Neuronal Interactions, and hosts Abstracts of other meetings on topics related to the aims and scope of JMNI.