此页面是自动翻译的，不保证翻译的准确性。请参阅英文版对于源文本。

Low Back Pain and Hamstring-to-Quadriceps Strength Ratio in Military Personnel (LBP-H/Q ratio)

2026年5月18日更新者：Vilma Dudoniene、Lithuanian Sports University

Association Between Low Back Pain and Hamstring-to-Quadriceps Strength Ratio in Lithuanian National Defence Volunteer Forces Personnel

The aim of this study was to determine the association between low back pain and the strength of knee flexor and extensor muscles in Lithuanian National Defence Volunteer Forces personnel.

研究概览

地位

完全的

条件

详细说明

This cross-sectional study investigated the association between low back pain (LBP) and the hamstring-to-quadriceps (H/Q) strength ratio in personnel of the Lithuanian National Defence Volunteer Forces. Active-duty volunteers with and without LBP underwent isokinetic testing of knee flexor and extensor muscle strength using a Biodex System 4 Pro dynamometer at angular velocities of 60°/s and 120°/s. Hamstring strength, quadriceps strength, H/Q ratios, and inter-limb asymmetries were assessed to explore potential associations with low back pain in this military population.

研究类型

观察性的

注册 (实际的)

联系人和位置

本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。

学习地点

立陶宛
- LT
  - Kaunas、LT、立陶宛、44221
    - Department of health promotion and rehabilitation

参与标准

研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

孩子
成人
年长者

接受健康志愿者

是的

取样方法

非概率样本

研究人群

The study population included active-duty Lithuanian National Defence Volunteer Forces personnel recruited for participation in this cross-sectional analysis

描述

Inclusion Criteria:

The study participants consisted of a targeted population of Lithuanian National Defence Volunteer Forces personnel

Exclusion Criteria:

Individuals with a clinically diagnosed low back pain disorder or acute episodes of low back pain were excluded

学习计划

本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。

研究是如何设计的？

设计细节

团体/队列数

队列和干预

团体/队列
Military personnel Targeted population of Lithuanian National Defence Volunteer Forces personnel

研究衡量的是什么？

主要结果指标

结果测量	措施说明	大体时间
Low back pain prevalence 大体时间：Baseline	Participants were asked whether they had experienced low back pain during the past 12 months (yes/no). Participants who responded "yes" were classified into the low back pain group.	Baseline
Low back pain intensity 大体时间：Baseline	LBP intensity was assessed using the Visual Analogue Scale (VAS, 0-10) , where 0 - no pain, and 10 - worst imaginable pain.	Baseline
Low back pain duration 大体时间：Baseline	Participants were asked to indicate LBP duration. LBP pain duration was classified as acute (<3 months) or chronic (≥3 months)	Baseline
Muscle strength peak torque 大体时间：Baseline	Muscle strength was assessed using the Biodex System 4 isokinetic dynamometer. Participants were instructed to avoid vigorous physical activity 24 hours before testing and refrain from eating for at least 2 hours prior to assessment. A 10-minute warm-up on a cycle ergometer (50-60 W) and light dynamic exercises were performed before testing. Participants were seated with the backrest at 85° and hip flexion at 90°. The dynamometer axis was aligned with the lateral femoral epicondyle, and the lower leg was secured 2-3 cm above the ankle. The range of motion was set from 70° knee flexion to full extension. The trunk and tested limb were stabilized using straps. Testing included 5 repetitions at 60°/s and 10 repetitions at 120°/s, with a 30-second rest interval between sets. Prior to testing, participants performed 3-5 familiarization repetitions. Peak torque normalized to body weight (Nm/kg) was recorded.	Baseline
Average torque 大体时间：Baseline	Was measured in Nm	Baseline
Muscle power 大体时间：Baseline	in W	Baseline
Body weight 大体时间：Baseline	Measured in kg	Baseline
Body height 大体时间：Baseline	Measured in meters	Baseline
Age 大体时间：Baseline	Measured in years	Baseline

次要结果测量

结果测量	措施说明	大体时间
Previous injuries 大体时间：Baseline	Participants were asked whether they had lumbar or lower limb injuries during the past 12 months that could influence the results (yes / no).	Baseline

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

Lithuanian Sports University

出版物和有用的链接

负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。

一般刊物

Dudoniene V, Zemaitis E. Prevalence and risk factors of low back pain among Lithuanian national defense volunteer forces. BMC Musculoskelet Disord. 2025 Oct 17;26(1):978. doi: 10.1186/s12891-025-09235-1.

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2026年1月1日

初级完成 (实际的)

2026年1月5日

研究完成 (实际的)

2026年4月22日

研究注册日期

首次提交

2026年4月24日

首先提交符合 QC 标准的

2026年5月18日

首次发布 (实际的)

2026年5月26日

研究记录更新

最后更新发布 (实际的)