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Proceedings from the 20th Annual TRAC Meeting, July 20–22, 2018 in New Orleans, Louisiana 2018年7月20日至22日在路易斯安那州新奥尔良举行的第20届TRAC年会论文集
Pub Date : 2019-05-03 DOI: 10.25036/JPHR.2018.2.2.TRAC
Philippa Page
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引用次数: 0
Acute Effects of Unilateral Self-Administered Static Stretching on Contralateral Limb Performance 单侧自我静态拉伸对对侧肢体表现的急性影响
Pub Date : 2019-04-30 DOI: 10.25036/JPHR.2019.3.1.BEHM
David G. Behm, R. J. Lau, J. O'leary, Machel Rayner, Elizabeth A Burton, L. Lavers
**Background:** Prolonged static stretching (SS) has been shown to impair subsequent performance of the stretched muscle. There is some evidence that unilateral SS can have crossover or global effects on range of motion (ROM), but there is scant information regarding whether prolonged SS also impairs contralateral muscle groups. **Purpose:** The objective of this study is to investigate the effects of self-administered unilateral SS with a TheraBand® stretch strap on contralateral hip flexion ROM and knee extension isometric maximum voluntarycontraction (MVC) force and muscle activation.**Study Design:** This study used an experimental repeated-measures intervention design.**Methods:** In total, 14 male participants performed self-administered SS of the dominant quadriceps and hamstrings (eight repetitions of 30 s each) with a TheraBand stretch strap. The aim was to observe pre- to post-SS-induced changes in hip flexion (hamstrings) ROM, knee extension (quadriceps) isometric force, and muscle activation (as recorded with electromyography [EMG]) in both dominant (experimental limb) and nondominant lower limbs (control lower limb).**Results:** A significant tested leg x time interaction [F(1,13) = 6.58; P = 0.04; eta2 = 0.210) demonstrated that the ROM increases in both the stretched and contralateral nonstretched legs by 6.7% (d = 0.53) and 4.3%(d = 0.38), respectively. There were no significant interactions for MVC force or muscle activation for either leg.**Conclusion:** The lack of crossover MVC changes suggests that the mechanism for contralateral increases in ROM may be stretch tolerance.**Clinical Relevance:** Individuals who are injured or are undergoing rehabilitation should continue to stretch the noninjured limb to maintain or improve flexibility of the injured limb.
**背景:**长期静态拉伸(SS)已被证明会损害拉伸肌肉的后续表现。有一些证据表明,单侧SS可以对运动范围(ROM)产生交叉或整体影响,但关于长期SS是否也损害对侧肌肉群的信息很少。**目的:**本研究的目的是研究使用TheraBand®拉伸带自我给药单侧SS对对侧髋关节屈曲ROM和膝关节伸展等长最大自主收缩力(MVC)和肌肉激活的影响。**研究设计:**本研究采用实验性重复测量干预设计。**方法:**总共有14名男性参与者使用TheraBand拉伸带进行优势股四头肌和腘绳肌的自我训练(每次30秒,重复8次)。目的是观察ss诱导前后在优势下肢(实验肢体)和非优势下肢(对照下肢)髋关节屈曲(腘绳肌)ROM、膝关节伸展(股四头肌)等距力和肌肉激活(用肌电图记录)方面的变化。**结果:**经检验的腿与时间交互作用显著[F(1,13) = 6.58;P = 0.04;eta2 = 0.210)表明伸展和对侧非伸展腿的ROM分别增加了6.7% (d = 0.53)和4.3%(d = 0.38)。对任何一条腿的MVC力或肌肉激活没有显著的相互作用。**结论:**缺乏交叉MVC改变提示对侧ROM增加的机制可能是拉伸耐受。**临床意义:**受伤或正在接受康复治疗的个体应继续伸展未受伤肢体,以维持或改善受伤肢体的柔韧性。
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引用次数: 11
2D Video Analysis of the Effects of TheraBand® CLX Neuromuscular Exercises on Overhead Deep Squat: An Observational Cohort Study TheraBand®CLX神经肌肉运动对头顶深蹲效果的2D视频分析:一项观察性队列研究
Pub Date : 2018-09-20 DOI: 10.25036/JPHR.2018.2.1.HOOGENBOOM
Barbara J. Hoogenboom, A. Stinson, Allison Huyser, M. Suter
**Background:** Overhead deep squat (OHDS) is used in both Functional Movement Screen (FMSTM) and other systems to examine movement competency during squatting. There is little evidence examining the effective- ness of exercises in improving OHDS performance in individuals with stability dysfunctions.**Purpose:** The purpose of this study is to determine the effect of low-level corrective exercises using TheraBand® CLX bands on OHDS performance in subjects with identified stability dysfunction during squatting.**Study Design:** This is an observational cohort study.**Methods:** In total, 59 healthy subjects (age, 18–40 years), participated in this study. Subjects were included if they demonstrated stability dysfunction during squatting and were excluded if they had a history of spinal or lower extremity injury or surgery and/or neurological or balance issues. Two-dimensional (2D) videos were used to record a preintervention (pre) OHDS in the frontal and sagittal views. Corrective exercises using TheraBand CLX were assigned on the basis of OHDS deficits. Subjects performed 3 sets of 15 repetitions of the assigned corrective exercises at a nonfatiguing workload, and postintervention (post) 2D videos were repeated. All videos were analyzed using Dartfish® Software to measure trunk angle, knee separation distance, and squat depth.**Results:** Statistically significant differences were observed between pre and post measures of knee separation at 0° of knee flexion (P = 0.013) and 60° of knee flexion (P = 0.039), as well as trunk-to-floor angle at 60° of knee flexion (P = 0.020) and at full depth (P = 0.000). Pre and post measures of full squat depth and knee separation at full depth were not significantly different. The effect sizes of the measured variables were small to medium, ranging from 0.02 to 0.67.**Discussion:** Corrective exercises using TheraBand CLX had several positive short-term statistically significant effects on OHDS mechanics. Small effect sizes were associated with knee separation (0° and 60°) and trunk angle at 60°, and a medium effect size was associated with trunk angle at full depth. Thus, movement changes observed in the postintervention squat cannot be fully attributed to the interventions.**Conclusion:** Significant short-term changes with small-to-medium effect sizes were found in multiple outcome measures; however, it is questionable whether these changes would be clinically observable in a physical therapy or sports performance setting without the use of video analysis.
**背景:**头顶深蹲(OHDS)在功能运动屏幕(FMSTM)和其他系统中用于检查深蹲时的运动能力。很少有证据证明运动在改善稳定性功能障碍患者的OHDS表现方面的有效性。**目的:**本研究的目的是确定使用TheraBand®CLX腕带进行低水平矫正运动对深蹲中稳定性功能障碍受试者的OHDS表现的影响。**研究设计:**本研究为观察性队列研究。**方法:**共59名健康受试者(年龄18-40岁)参与本研究。如果受试者在深蹲时表现出稳定性障碍,则纳入研究,如果受试者有脊柱或下肢损伤或手术史和/或神经或平衡问题,则排除。使用二维(2D)视频记录干预前(预)正面和矢状面OHDS。根据OHDS缺陷分配使用TheraBand CLX的纠正练习。受试者在非疲劳负荷下进行3组15次的指定纠正练习,并重复干预后(后)2D视频。使用Dartfish®软件分析所有视频,测量躯干角度、膝盖分离距离和深蹲深度。**结果:**前后膝关节屈曲0°时(P = 0.013)、60°时(P = 0.039)、60°时(P = 0.020)、全深度时(P = 0.000)的体底角测量差异均有统计学意义。在全深蹲深度和全深膝关节分离的前后测量无显著差异。测量变量的效应量为小到中等,范围为0.02 ~ 0.67。**讨论:**使用TheraBand CLX的纠正练习对OHDS力学有几个积极的短期统计学显著影响。较小的效应量与膝关节分离(0°和60°)和60°的躯干角度有关,中等的效应量与全深度的躯干角度有关。因此,在干预后深蹲中观察到的运动变化不能完全归因于干预。**结论:**在多个结局测量中发现了显著的短期变化,且具有中小型效应量;然而,如果不使用视频分析,这些变化是否会在物理治疗或运动表演环境中被临床观察到是值得怀疑的。
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引用次数: 1
Use of Topical Analgesic and Rolling Alone or in Combination Does Not Increase Flexibility, Pain Pressure Threshold, and Fatigue Endurance—A Repeated-Measures Randomized, Within-Subjects, Exploratory Study 局部镇痛药和滚动单独使用或联合使用不会增加柔韧性、痛压阈值和疲劳耐力——一项重复测量随机、受试者内的探索性研究
Pub Date : 2018-08-27 DOI: 10.25036/JPHR.2018.2.1.BEHM
David G. Behm, C. Duffett, S. Wiseman, I. Halperin
Background: Prior studies have reported an increase in range of motion (ROM) and pain pressure thresholds (PPT) with self-massage using foam rollers and roller massagers. A possible mechanism for the increased ROM is the increase in stretch (pain) threshold. The effects of the use of a topical analgesic alone or in combination with rolling may provide additional benefits for ROM and PPT and improve the ability to tolerate discomfort during a fatiguing protocol. Purpose: The purpose of this study is to investigate the effect of the use of a topical analgesic alone or a roller massager alone and a combination of both on ROM, PPT, and performance in a fatiguing protocol. Design: This study used a repeated-measures, randomized, within-subjects design. Methods: Sixteen healthy, active male participants (age range, 18–27 years) free from musculoskeletal injuries participated in the study that included 5 conditions, namely, control, placebo gel, topical analgesic gel, rolling and placebo gel, and rolling and topical analgesic gel. All sessions involved 2 ROM and PPT pretests separated by 5 min. Further, after a 20-min recovery period, 2 posttests of ROM, PPT, and heel raises to failure (HRF) were completed at 5-min intervals. In sessions including gel application, immediately after posttest 2, the gels were manually applied on the dominant-leg calf muscles. In sessions including self-massage, 18 min after pretest 2, a rolling massage protocol of 3 sets of 30 s with 10-s rest for a score of 7/10 on the pain scale to cadence of 1 s for the full length of the muscle was conducted from the same sitting position. Statistical analysis: A 5 conditions 4 times repeated-measures ANOVA () was used to analyze PPT and ROM, whereas a 5 conditions 2 times ANOVA was used for HRF. Results: There were no significant main effects for condition or any interactions. A main effect for time (P = 0.031) showed meaningful but no statistically significant (P = 0.1) increases in PPT with near-significant increases between pretest 1 (35.9 6 10.1 kg) and pretest 2 (38.3 6 12.6 kg) and significant (P = 0.02) increases from posttest 1 (36.3 6 11.4 kg) to posttest 2 (38.9 6 12.8 kg). ROM also showed a main effect for time (P < 0.0001), with significant improvements between all times and with the exception of results from posttest 1 to posttest 2 [pretest 1 (13.8 6 3.1 cm), pretest 2 (14.08 6 3.2 cm), posttest 1 (14.28 6 2.9 cm), posttest 2 (14.4 6 3.3 cm)]. HRF showed a main effect for time, with a significant (P = 0.006) decrease in repetitions from posttest 1 (22.1 6 6.7) to posttest 2 (20.4 6 4.4).
背景:先前的研究报道了使用泡沫滚子和滚子按摩器进行自我按摩可以增加活动范围(ROM)和疼痛压力阈值(PPT)。ROM增加的一个可能机制是拉伸(疼痛)阈值的增加。单独使用局部镇痛药或与滚动联合使用的效果可能为ROM和PPT提供额外的益处,并提高疲劳治疗期间耐受不适的能力。目的:本研究的目的是探讨在疲劳方案中单独使用局部镇痛药或单独使用滚轮按摩器以及两者结合使用对ROM、PPT和表现的影响。设计:本研究采用重复测量、随机、受试者内设计。方法:16名健康、活跃、无肌肉骨骼损伤的男性受试者(年龄18-27岁)参与研究,包括5种情况,即对照组、安慰剂凝胶、外用镇痛凝胶、滚动和安慰剂凝胶、滚动和外用镇痛凝胶。所有训练包括两次ROM和PPT预测试,间隔5分钟。此外,在20分钟的恢复期后,每隔5分钟完成两次ROM、PPT和足跟抬高至失败(HRF)的后测试。在包括凝胶应用在内的疗程中,在测试2后立即手动将凝胶涂抹在小腿主力肌肉上。在自我按摩的过程中,预试2后18分钟,在相同的坐姿上进行3组滚动按摩,每组30秒,休息10秒,疼痛评分为7/10,节奏为1秒,针对整个肌肉长度。统计分析:PPT和ROM采用5条件4次重复测量方差分析,HRF采用5条件2次重复测量方差分析。结果:两组间无明显主效应及相互作用。时间的主效应(P = 0.031)显示PPT增加有意义但无统计学意义(P = 0.1),前测1 (35.9 6 10.1 kg)和前测2 (38.3 6 12.6 kg)之间的PPT增加接近显著(P = 0.02),后测1 (36.3 6 11.4 kg)和后测2 (38.9 6 12.8 kg)之间的PPT增加显著(P = 0.02)。ROM对时间也有主要影响(P < 0.0001),除后测1到后测2的结果外,所有时间之间都有显著改善[前测1 (13.8 6 3.1 cm),前测2 (14.08 6 3.2 cm),后测1 (14.28 6 2.9 cm),后测2 (14.4 6 3.3 cm)]。HRF主要受时间的影响,从测试1(22.1 6 6.7)到测试2(20.4 6 4.4),重复次数显著降低(P = 0.006)。
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引用次数: 3
Muscle Activity During a Single Set of Resistance Training to Failure in Women With Chronic Neck and Shoulder Pain Before and After 10 Weeks Training 慢性颈肩疼痛女性在10周训练前后的单组抗阻训练失败时的肌肉活动
Pub Date : 2018-08-13 DOI: 10.25036/JPHR.2018.2.1.LIDEGAARD
Mark Lidegaard, R. Jensen, M. Zebis, L. Andersen
Background: Resistance training to failure is an advanced method often used by healthy individuals. Little is known about this type of training in individuals with musculoskeletal pain. Purpose: This study investigates the effect of 10 weeks’ elastic resistance training on neck and shoulder muscle activity during a single set to failure. Study design: This was an observational cohort study. Methods: Sixteen untrained, female office workers with chronic neck and shoulder pain performed 10 weeks of elastic resistance exercise as a single set of lateral raise to failure during workdays. Electromyography (EMG) amplitude and median power frequency (MPF) from the splenius and the upper trapezius muscles were analyzed. Results: EMG amplitude increased and MPF decreased linearly from the first to the last repetition during the set, before and after the 10 weeks of training. For the first few repetitions of exercise, muscle activity was higher after 10 weeks than before the intervention (91% vs.74%, P = 0.03). However, during the last repetitions, similar high levels of EMG amplitude were noted both before and after the 10 weeks (129% vs.127%, P = 0.81). The MPF before and after the training intervention was 79 and 77 Hz (P = 0.69), respectively, during the first repetitions, and 66 and 69 Hz (P = 0.62) during the last repetitions of exercise. The increase in EMG and decrease in MPF – which were similar before and after 10 weeks – are good indicators of acute muscle fatigue. Conclusion: The results indicate that untrained women with neck-shoulder pain are capable of training to failure, and concur with previous results showing rapid benefits in terms of muscle strength and pain reductions from this type of training.
背景:抗失败训练是健康人常用的一种高级训练方法。对于肌肉骨骼疼痛患者的这种训练,我们所知甚少。目的:本研究探讨10周弹性阻力训练对单组失败时颈肩肌肉活动的影响。研究设计:这是一项观察性队列研究。方法:16名未受过训练的慢性颈肩疼痛女性办公室职员在工作日进行了10周的弹性阻力运动,作为一组单一的侧举至失败。分析了脾肌和上斜方肌的肌电图(EMG)振幅和中位工频(MPF)。结果:在10周训练前后,从第一次重复到最后一次重复,肌电波幅呈线性增加,强积金呈线性下降。对于前几次重复运动,10周后肌肉活动高于干预前(91%对74%,P = 0.03)。然而,在最后一次重复中,在10周之前和之后都注意到类似的高水平肌电图振幅(129% vs.127%, P = 0.81)。训练干预前后的强积金分别为79 Hz和77 Hz (P = 0.69),最后一次训练时的强积金分别为66 Hz和69 Hz (P = 0.62)。肌电图的增加和强积金的下降(10周前后相似)是急性肌肉疲劳的良好指标。结论:结果表明,未经训练的颈肩疼痛女性有可能训练失败,并与先前的结果一致,表明这种训练在肌肉力量和疼痛减轻方面迅速受益。
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引用次数: 0
Management of Chronic Neck and/or Low Back Pain With a Multimodal Nonpharmacological Pain Relief Kit 慢性颈部和/或腰痛的多模式非药物缓解试剂盒管理
Pub Date : 2018-08-13 DOI: 10.25036/JPHR.2018.2.1.TOPP
R. Topp, Jena Etnoyer-Slaski, H. Sterling, J. Greenstein, B. Bishop
**Background:** Chronic neck and back pain lasting over 3 months is a significant source of disability. Recent recommendations for treating chronic pain indicate nonpharmacological interventions be initially prescribed. Topical menthol, elastic therapeutic tape, thermal therapy, and exercise have been found to be effective in reducing musculoskeletal pain. The pain relief kit described here includes these nonpharmacological interventions for patients to self-select their pain management.**Purpose:** The purpose of this 3-week study was to determine the effect of a multimodal, nonpharmacological pain relief kit on pain, functioning, and pain medication consumption in individuals experiencing chronic neck and/or low back pain.**Study Design:** This is a repeated measures single observational cohort study.**Methods:** Study participants included 25 volunteers with moderate intensity (>3/10) chronic neck and/or low back pain. Subjects completed baseline data collection and then received a pain relief kit. This kit included a brochure, product samples, and a description of how to use the four nonpharmacological interventions, includ- ing topical menthol, kinesiology tape, thermal therapy, and 3 stretching and 3 strengthening exercises to be performed using elastic resistance. Data were collected at 3 points—before giving the kit (baseline) and at 1 week (T1) and 3 weeks (T2) after giving the kit—using the Modified Patient Specific Functional Scale (MPSFS), Medical Outcomes Survey (MOS)-36, and by assessing their ability to complete 4 functional tasks and pain intensity while completing the tasks. Furthermore, all participants used a daily log to enter the rating of their pain, document the interventions used from the kit, and the number of pain medications they consumed.**Results:** There was a significant (P < .05) improvement between baseline to T2 in MPSFS and the MOS Physical Functioning and Energy/Fatigue scale. Also, between baseline to T2, the subjects reported improvement in performing 2 functional tasks and significantly less pain while completing all of the functional tasks. Finally, over the duration of the study, subjects reported significantly less daily pain, fewer days of pain per week, and less pain medication consumed per day.**Conclusion:** The use of nonpharmacological interventions provided in the pain relief kit allow chronic neck and low back pain patients to effectively self-manage their pain, improve their ability to perform functional tasks, and reduce their pain medication consumption.
**背景:**持续3个月以上的慢性颈部和背部疼痛是残疾的重要来源。最近关于治疗慢性疼痛的建议表明,非药物干预措施最初应开处方。局部薄荷醇、弹性治疗带、热疗法和运动已被发现对减轻肌肉骨骼疼痛有效。这里描述的疼痛缓解包包括这些非药物干预,让患者自我选择他们的疼痛管理。**目的:**这项为期3周的研究的目的是确定多模式、非药物疼痛缓解试剂盒对慢性颈部和/或腰痛患者疼痛、功能和止痛药消耗的影响。**研究设计:**这是一项重复测量单观察队列研究。**方法:**研究对象包括25名中等强度(>3/10)慢性颈部和/或腰痛的志愿者。受试者完成基线数据收集,然后接受疼痛缓解包。该工具包包括一本小册子,产品样品,以及如何使用四种非药物干预措施的说明,包括局部薄荷醇,运动学胶带,热疗法,以及使用弹性阻力进行的3次拉伸和3次强化练习。使用改良患者特定功能量表(MPSFS)、医疗结果调查(MOS)-36,并通过评估患者完成4项功能任务的能力和完成任务时的疼痛强度,在给予试剂盒前(基线)、给予试剂盒后1周(T1)和3周(T2) 3点收集数据。此外,所有参与者使用每日日志输入他们的疼痛等级,记录从工具包中使用的干预措施,以及他们消耗的止痛药数量。**结果:** MPSFS和MOS体力功能和能量/疲劳量表从基线到T2有显著改善(P < 0.05)。此外,从基线到T2,受试者报告在完成所有功能任务时,在执行2项功能任务方面有所改善,疼痛明显减少。最后,在研究期间,受试者报告的每日疼痛明显减少,每周疼痛天数减少,每天服用的止痛药减少。**结论:**使用疼痛缓解包中提供的非药物干预措施,可以使慢性颈下腰痛患者有效地自我管理疼痛,提高其执行功能任务的能力,减少止痛药的消耗。
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引用次数: 0
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JPHR: Journal of Performance Health Research
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