Abstract:
:OBJECTIVE: Low-level laser therapy (LLLT) has been promoted for its beneficial effects on tissue healing and pain relief. However, according to the results of in vivo studies, the effectiveness of this modality varies. Our purpose was to assess the putative effects of LLLT on healing using an experimental wound model. DESIGN AND SETTING: We used a randomized, triple-blind, placebo-controlled design with 2 within-subjects factors (wound and time) and 1 between-subjects factor (group). Data were collected in the laboratory setting. SUBJECTS: Twenty-two healthy subjects (age = 21 +/- 1 years, height = 175.6 +/- 9.8 cm, mass = 76.2 +/- 14.2 kg). MEASUREMENTS: Two standardized 1.27-cm(2) abrasions were induced on the anterior forearm. After wound cleaning, standardized digital photos were recorded. Each subject then received LLLT (8 J/cm(2); treatment time = 2 minutes, 5 seconds; pulse rate = 700 Hz) to 1 of the 2 randomly chosen wounds from either a laser or a sham 46-diode cluster head. Subjects reported back to the laboratory on days 2 to 10 to be photographed and receive LLLT and on day 20 to be photographed. Data were analyzed for wound contraction (area), color changes (chromatic red), and luminance. RESULTS: A group x wound x time interaction was detected for area measurements. At days 6, 8, and 10, follow-up testing revealed that the laser group had smaller wounds than the sham group for both the treated and the untreated wounds (P < .05). No group x wound x time differences were detected for chromatic red or luminance. CONCLUSIONS: The LLLT resulted in enhanced healing as measured by wound contraction. The untreated wounds in subjects treated with LLLT contracted more than the wounds in the sham group, so LLLT may produce an indirect healing effect on surrounding tissues. These data indicate that LLLT is an effective modality to facilitate wound contraction of partial-thickness wounds.
journal_name
J Athl Trainjournal_title
Journal of athletic trainingauthors
Hopkins JT,McLoda TA,Seegmiller JG,David Baxter Gkeywords:
subject
Has Abstractpub_date
2004-09-01 00:00:00pages
223-229issue
3eissn
1062-6050issn
1938-162Xjournal_volume
39pub_type
杂志文章abstract:CONTEXT:The QT interval variability index (QTVI) is a noninvasive measure of beat-to-beat fluctuations of the QT interval as seen from a single electrocardiographic lead. It represents the relationship between the respective variabilities of the QT and R-R intervals. Recently, the QTVI was demonstrated to be an index o...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-46.3.230
更新日期:2011-05-01 00:00:00
abstract:CONTEXT:American football has the highest rate of fatalities and catastrophic injuries of any US sport. The equipment designed to protect athletes from these catastrophic events challenges the ability of medical personnel to obtain neutral spine alignment and immobilization during airway and chest access for emergency ...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-50.4.04
更新日期:2015-07-01 00:00:00
abstract:CONTEXT:Researchers investigating collision and contact sport participation during high school have found mixed results. Understanding the association between current contact and collision sport participation and quality-of-life outcomes can enhance our knowledge about the risks and benefits of sport participation. OB...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-0536.19
更新日期:2020-11-01 00:00:00
abstract:CONTEXT:Hiring athletic trainers (ATs) in high schools may lower medical payments by third-party payers such as Medicaid or commercial insurers by reducing injury risks or may increase medical payments due to more referrals to other health care providers. To date, evidence is lacking on the actual financial effect of h...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-390-17
更新日期:2019-02-01 00:00:00
abstract:CONTEXT:Greater musculotendinous stiffness may enhance spinal stretch reflex sensitivity by improving mechanical coupling of the muscle spindle and the stretch stimulus. This heightened sensitivity would correspond with a shorter latency and higher-amplitude reflex response, potentially enhancing joint stability. OBJE...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-43.1.29
更新日期:2008-01-01 00:00:00
abstract::OBJECTIVE: To explain the ethnographic, phenomenologic, and grounded theory approaches to qualitative research and to describe how these approaches can be applied to contemporary topics related to athletic training education. BACKGROUND: Athletic training education has recently experienced an increase in the use of qu...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:2002-12-01 00:00:00
abstract:OBJECTIVE: To present recommendations for the diagnosis, management, outcomes, and return to play of athletes with superior labral anterior-posterior (SLAP) injuries. BACKGROUND: In overhead athletes, SLAP tears are common as either acute or chronic injuries. The clinical guidelines presented here were developed bas...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-59-16
更新日期:2018-03-01 00:00:00
abstract::OBJECTIVE: Arthrogenic muscle inhibition (AMI) is a presynaptic, ongoing reflex inhibition of joint musculature after distension or damage to the joint. The extent to which therapeutic interventions affect AMI is unknown. The purpose of this study was to verify that the vastus medialis (VM) is inhibited using the knee...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:2002-03-01 00:00:00
abstract:CONTEXT:Baseball is played around the world, including in North America and Latin America. The repetitive and stressful act of throwing can lead to adaptations such as increased humeral retroversion (HR) in the throwing arm. This adaptation is often considered beneficial as it allows more glenohumeral external rotation...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-563-18
更新日期:2020-01-01 00:00:00
abstract:CONTEXT:In orienteering, the number of injury-registration studies is limited. Most researchers have used a cross-sectional design during specific events and, therefore, have mainly identified acute injuries. OBJECTIVE:To determine the prevalence of injuries by registering acute and overuse injuries in adolescent elit...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-51.5.01
更新日期:2016-04-01 00:00:00
abstract:CONTEXT:Computerized neuropsychological testing is used in athletics; however, normative data on an athletic population are lacking. OBJECTIVE:To investigate factors, such as sex, SAT score, alertness, and sport, and their effects on baseline neuropsychological test scores. A secondary purpose was to begin establishin...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:2007-10-01 00:00:00
abstract::Reference: Dunning J, Batchelor J, Stratford-Smith P, et al. A meta-analysis of variables that predict significant intracranial injury in minor head trauma. Arch Dis Child. 2004;89:653-659.Clinical Question: Which clinical signs or symptoms of minor head trauma are predictive of intracranial hemorrhage in children and...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:2005-06-01 00:00:00
abstract:OBJECTIVE:To examine the effects of fatigue on proprioception and neuromuscular control of the shoulder. DESIGN AND SETTING:Subjects were randomly assigned to either an experimental group or control group. Subjects were tested using either the active angle-reproduction or the single- arm dynamic stability test. The su...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:1999-10-01 00:00:00
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journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-531-16
更新日期:2018-03-01 00:00:00
abstract:CONTEXT:Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) is a computerized cognitive test battery commonly used for concussion evaluation. An important aspect of these procedures is baseline testing, but researchers have suggested that many users do not use validity indices to ensure adequate effort ...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-48.6.20
更新日期:2013-11-01 00:00:00
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journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:2007-07-01 00:00:00
abstract:CONTEXT:Knee-valgus motion is a potential risk factor for certain lower extremity injuries, including anterior cruciate ligament injury and patellofemoral pain. Identifying neuromuscular characteristics associated with knee-valgus motion, such as hip and lower leg muscle activation, may improve our ability to prevent l...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-47.5.10
更新日期:2012-09-01 00:00:00
abstract:CONTEXT:Heel lifts are often prescribed as part of the treatment program for patients with overuse injuries associated with limited ankle dorsiflexion. However, little is known about how joint kinematics and temporal variables are affected by heel lifts. OBJECTIVE:To determine the effects of heel lifts on selected low...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:2006-04-01 00:00:00
abstract:CONTEXT:Previous research on American football injuries in Japan has focused on incidence proportion in terms of the number of injuries divided by the number of players. This is the first study to examine injury rates over several seasons. OBJECTIVE:To conduct a prospective study of injuries in a Japanese Division I c...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-48.4.15
更新日期:2013-11-01 00:00:00
abstract:CONTEXT:Many athletes continue to participate in practices and games while experiencing concussion-related symptoms, potentially predisposing them to subsequent and more complicated brain injuries. Limited evidence exists about factors that may influence concussion-reporting behaviors. OBJECTIVE:To examine the influen...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-48.3.20
更新日期:2013-09-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to assess the effect of low-volt, microamperage stimulation (LVMAS) on perceived pain and muscle strength following an intense bout of eccentric exercise. DESIGN AND SETTING:An experimental pretest-posttest control group design was used for the study. The experiment was conducte...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:1997-04-01 00:00:00
abstract:CONTEXT:Isokinetic and isotonic resistance training exercises are commonly used to increase strength during musculoskeletal rehabilitation programs. Our study was designed to examine the efficacy of isokinetic and isotonic muscle actions using surface electromyographic (EMG) amplitude-to-work ratios (EMG/WK) and to ext...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:2006-07-01 00:00:00
abstract:OBJECTIVE: To describe the concept of statistical power as related to comparative interventions and how various factors, including sample size, affect statistical power. BACKGROUND: Having a sufficiently sized sample for a study is necessary for an investigation to demonstrate that an effective treatment is statisti...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-284-17
更新日期:2018-07-01 00:00:00
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journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-50.3.05
更新日期:2015-07-01 00:00:00
abstract:CONTEXT:The ratio of clinicians to patients has been associated with health outcomes in many medical contexts but has not been explored in collegiate sports medicine. The relationship between administrative and financial oversight models and staffing is also unknown. OBJECTIVE:To (1) evaluate staffing patterns in Nati...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-0463-19
更新日期:2020-06-23 00:00:00
abstract:CONTEXT:An arthrogenic muscle response (AMR) of the soleus and peroneal muscles has been previously demonstrated in individuals with chronic ankle instability (CAI), but the presence of AMR in muscles acting on joints proximal to unstable ankles has not been previously explored. OBJECTIVE:To determine if AMR is presen...
journal_title:Journal of athletic training
pub_type: 杂志文章,随机对照试验
doi:
更新日期:2007-07-01 00:00:00
abstract::OBJECTIVE: To determine whether isotonic or isokinetic contractions produced greater electromyographic (EMG) activity per unit of work during isotonic and isokinetic knee-extension exercise. DESIGN AND SETTING: Subjects performed three 3-second maximal voluntary isometric contractions of the dominant knee extensors fo...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:2001-12-01 00:00:00
abstract:OBJECTIVE:To determine the electromyographic (EMG) activity of the vastus medialis oblique (VMO), vastus lateralis (VL), semitendinosus and semimembranosus (ST), and biceps femoris (BF) muscles during 4 elastic-tubing closed kinetic chain exercises in postoperative patients with anterior cruciate ligament (ACL)-reconst...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:1998-10-01 00:00:00
abstract:OBJECTIVE:To present the case of a stress fracture of the eighth rib in a female collegiate rower. BACKGROUND:A female collegiate rower experienced severe pain in her chest, increasing with movement, deep breathing, and erect posture. No acute mechanism of injury was apparent. The team physician diagnosed a rib stress...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:2000-10-01 00:00:00
abstract:OBJECTIVE:To present the case of a bone lesion of the scapula in a collegiate basketball player. BACKGROUND:A 19-year-old National Collegiate Athletic Association Division I male basketball player presented with pain in the posterior region of the right shoulder. During practice, he was performing a layup when his arm...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-48.3.07
更新日期:2013-11-01 00:00:00