髌股关节疼痛患者中叠加脉冲技术的可靠性：一份技术报告。
Reliability of the Superimposed-Burst Technique in Patients With Patellofemoral Pain: A Technical Report.
作者信息
Norte Grant E, Frye Jamie L, Hart Joseph M
机构信息
Department of Kinesiology, University of Virginia, Charlottesville;
Department of Health Sciences, James Madison University, Harrisonburg, VA.
出版信息
J Athl Train. 2015 Nov;50(11):1207-11. doi: 10.4085/1062-6050-50.10.03.
CONTEXT
The superimposed-burst (SIB) technique is commonly used to quantify central activation failure after knee-joint injury, but its reliability has not been established in pathologic cohorts.
OBJECTIVE
To assess within-session and between-sessions reliability of the SIB technique in patients with patellofemoral pain.
DESIGN
Descriptive laboratory study.
SETTING
University laboratory.
PATIENTS OR OTHER PARTICIPANTS
A total of 10 patients with self-reported patellofemoral pain (1 man, 9 women; age = 24.1 ± 3.8 years, height = 167.8 ± 15.2 cm, mass = 71.6 ± 17.5 kg) and 10 healthy control participants (3 men, 7 women; age = 27.4 ± 5.0 years, height = 173.5 ± 9.9 cm, mass = 78.2 ± 16.5 kg) volunteered.
INTERVENTION(S): Participants were assessed at 6 intervals spanning 21 days. Intraclass correlation coefficients (ICCs [3,3]) were used to assess reliability.
MAIN OUTCOME MEASURE(S): Quadriceps central activation ratio, knee-extension maximal voluntary isometric contraction force, and SIB force.
RESULTS
The quadriceps central activation ratio was highly reliable within session (ICC [3,3] = 0.97) and between sessions through day 21 (ICC [3,3] = 0.90-0.95). Acceptable reliability of knee extension (ICC [3,3] = 0.75-0.91) and SIB force (ICC [3,3] = 0.77-0.89) was observed through day 21.
CONCLUSIONS
The SIB technique was reliable for clinical research up to 21 days in patients with patellofemoral pain.
背景
叠加脉冲（SIB）技术常用于量化膝关节损伤后的中枢激活功能障碍，但尚未在病理队列中确定其可靠性。
目的
评估SIB技术在髌股疼痛患者中的日内和日间可靠性。
设计
描述性实验室研究。
地点
大学实验室。
患者或其他参与者
共有10名自述有髌股疼痛的患者（1名男性，9名女性；年龄 = 24.1 ± 3.8岁，身高 = 167.8 ± 15.2厘米，体重 = 71.6 ± 17.5千克）和10名健康对照参与者（3名男性，7名女性；年龄 = 27.4 ± 5.0岁，身高 = 173.5 ± 9.9厘米，体重 = 78.2 ± 16.5千克）自愿参与。
干预措施
参与者在21天内分6次进行评估。组内相关系数（ICC[3,3]）用于评估可靠性。
主要观察指标
股四头肌中枢激活率、膝关节伸展最大自主等长收缩力和SIB力。
结果
股四头肌中枢激活率在日内（ICC[3,3] = 0.97）和至第21天的日间（ICC[3,3] = 0.90 - 0.95）高度可靠。至第21天观察到膝关节伸展（ICC[3,3] = 0.75 - 0.91）和SIB力（ICC[3,3] = 0.77 - 0.89）的可靠性可接受。
结论
对于髌股疼痛患者，SIB技术在长达21天的临床研究中是可靠的。
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