Charlton Paula C, Mentiplay Benjamin F, Grimaldi Alison, Pua Yong-Hao, Clark Ross A
Department of Physical Therapies, Australian Institute of Sport, Australia.
School of Exercise Science, Faculty of Health Sciences, Australian Catholic University, Australia.
J Sci Med Sport. 2017 Feb;20(2):139-145. doi: 10.1016/j.jsams.2016.06.008. Epub 2016 Jun 23.
Firstly to describe the reliability of assessing maximal isometric strength of the hip abductor and adductor musculature using a hand held dynamometry (HHD) protocol with simultaneous wireless surface electromyographic (sEMG) evaluation of the gluteus medius (GM) and adductor longus (AL). Secondly, to describe the correlation between isometric strength recorded with the HHD protocol and a laboratory standard isokinetic device.
Reliability and correlational study.
A sample of 24 elite, male, junior, rugby league athletes, age 16-20 years participated in repeated HHD and isometric Kin-Com (KC) strength testing with simultaneous sEMG assessment, on average (range) 6 (5-7) days apart by a single assessor. Strength tests included; unilateral hip abduction (ABD) and adduction (ADD) and bilateral ADD assessed with squeeze (SQ) tests in 0 and 45° of hip flexion.
HHD demonstrated good to excellent inter-session reliability for all outcome measures (ICC=0.76-0.91) and good to excellent association with the laboratory reference KC (ICC=0.80-0.88). Whilst intra-session, inter-trial reliability of EMG activation and co-activation outcome measures ranged from moderate to excellent (ICC=0.70-0.94), inter-session reliability was poor (all ICC<0.50).
Isometric strength testing of the hip ABD and ADD musculature using HHD may be measured reliably in elite, junior rugby league athletes. Due to the poor inter-session reliability of sEMG measures, it is not recommended for athlete screening purposes if using the techniques implemented in this study.
首先描述使用手持测力计（HHD）方案并同时对臀中肌（GM）和长收肌（AL）进行无线表面肌电图（sEMG）评估来测定髋外展肌和内收肌最大等长力量的可靠性。其次，描述HHD方案记录的等长力量与实验室标准等速设备之间的相关性。
可靠性和相关性研究。
24名年龄在16 - 20岁的精英男性青年橄榄球联盟运动员参与了重复的HHD和等长Kin-Com（KC）力量测试，同时进行sEMG评估，平均（范围）间隔6（5 - 7）天，由一名评估者完成。力量测试包括：单侧髋外展（ABD）和内收（ADD），以及在髋关节屈曲0°和45°时通过挤压（SQ）测试评估双侧ADD。
HHD对所有结果测量显示出良好至优秀的组间可靠性（ICC = 0.76 - 0.91），并且与实验室参考KC具有良好至优秀的相关性（ICC = 0.80 - 0.88）。虽然在组内，肌电图激活和协同激活结果测量的试验间可靠性从中度到优秀（ICC = 0.70 - 0.94），但组间可靠性较差（所有ICC < 0.50）。
使用HHD对髋ABD和ADD肌肉进行等长力量测试，在精英青年橄榄球联盟运动员中可以可靠地测量。由于sEMG测量的组间可靠性较差，如果使用本研究中实施的技术，不建议用于运动员筛查目的。
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