Abstract:
:OBJECTIVE: To compare the effectiveness of Nature's Chemist as an ultrasound coupling agent with the effectiveness of another topical analgesic (Biofreeze), Aquasonic 100, and a sham treatment in producing intramuscular (IM) temperature increase during a typical therapeutic ultrasound treatment. DESIGN AND SETTING: Subjects were randomly assigned to 1 of 4 treatment groups (n = 10 in each group). Groups 1 through 3 received continuous ultrasound at 1.0 W/cm(2) for 10 minutes at a frequency of 3 MHz over the posterior calf. Group 4 received a sham treatment. In group 1, we used Aquasonic 100 alone; in group 2, we used a 1:1 (wt/wt) mixture of Biofreeze and Aquasonic 100; in group 3, we used a 1:1 mixture of Nature's Chemist and Aquasonic 100; and in group 4, we used a 1:1 mixture of Aquasonic 100 and Nature's Chemist. In all groups, IM temperature was recorded during the treatment and for 15 minutes posttreatment. We used a modified visual analogue scale to measure each subject's perception of heat at the treatment area during and after treatment. SUBJECTS: Forty college students (age, 22.5 +/- 2.0 years; height, 175.5 +/- 8.0 cm; weight, 71.6 +/- 13.1 kg; calf skinfold thickness, 17.8 +/- 7.2 mm) volunteered to become subjects. MEASUREMENTS: The IM temperature was recorded at 15-second intervals for 25 minutes at 1 cm below the subcutaneous fat with a thermocouple. Differences were analyzed within and among groups at the beginning of the treatment (T(0)), the end of the treatment (T(10)), and 15 minutes posttreatment (T(25)). RESULTS: The IM temperature increases in groups 1 through 3 were significantly different from those in group 4 (sham), but they were not significantly different from each other. Temperatures increased in group 1 (Aquasonic 100) by 7.47 degrees +/- 1.8 degrees C, in group 2 (Biofreeze and Aquasonic 100) by 6.52 degrees +/- 1.6 degrees C, and in group 3 (Nature's Chemist and Aquasonic 100) by 6.99 degrees +/- 1.1 degrees C. Temperatures decreased in group 4 (sham) by 0.56 degrees +/- 0.3 degrees C. There were no significant differences among groups 1 through 3 in the perception of heat at T(5) and T(10). CONCLUSIONS: Our results indicate that, at a frequency of 3 MHz and an intensity of 1 W/cm(2), Nature's Chemist and Biofreeze mixed in 1:1 ratios with Aquasonic 100 were effective coupling agents. Perceptions of heat by the patient may not indicate actual temperature increases within the muscle.
journal_name
J Athl Trainjournal_title
Journal of athletic trainingauthors
Myrer JW,Measom GJ,Fellingham GWkeywords:
subject
Has Abstractpub_date
2001-03-01 00:00:00pages
20-25issue
1eissn
1062-6050issn
1938-162Xjournal_volume
36pub_type
杂志文章abstract:CONTEXT:Empirical evidence supports the idea that previous severe injuries in former collegiate athletes may adversely affect their ability to participate in daily activities later in life, which may then decrease their health-related quality of life (HRQOL). OBJECTIVE:To assess the influences of previous severe injur...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-377-17
更新日期:2019-01-01 00:00:00
abstract:CONTEXT:Understanding the factors that predict return to sport (RTS) after anterior cruciate ligament reconstruction facilitates clinical decision making. OBJECTIVE:To develop a clinical decision algorithm that could predict RTS and non-RTS based on the differences in the variables after anterior cruciate ligament rec...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-82-19
更新日期:2020-07-01 00:00:00
abstract:CONTEXT:Quadriceps and hamstrings weakness occurs frequently after anterior cruciate ligament (ACL) injury and reconstruction. Evidence suggests that knee injury may precipitate hip and ankle muscle weakness, but few data support this contention after ACL injury and reconstruction. OBJECTIVE:To determine if hip, knee,...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-48.3.23
更新日期:2013-09-01 00:00:00
abstract:OBJECTIVE:To determine the effect of the Breathe Right (BR) external nasal dilator strip on treadmill exercise performed while wearing an upper maxillary mouthguard. DESIGN AND SETTING:Two-way repeated-measures design with subjects acting as their own controls. Subjects performed 2 randomly assigned bouts of increment...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:2000-01-01 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:The purpose of this research was to investigate the hazards of lightning for participants in outdoor athletics and to determine the existence of, and assess the nature of, lightning safety policy at the collegiate level. DESIGN AND SETTING:We used data from the National Severe Storms Laboratory in Norman, Ok...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:1997-07-01 00:00:00
abstract::OBJECTIVE: To measure and compare latency, electromechanical delay, and speed of motor response of the peroneus longus muscle in a large sample of subjects with healthy or unstable ankles. DESIGN AND SETTING: Subjects with healthy or unstable ankles underwent identical test procedures consisting of 6 consecutive, sudd...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:2002-12-01 00:00:00
abstract::Scores from motor performance tests were compared using subjects with taped and untaped ankles. Previous studies have shown that taped ankle support may be detrimental in vertical and standing broad jumping performance. Conflicting data have been published on the effects of commercial ankle braces on various motor tas...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00
abstract::The socioecological framework is a multilevel conceptualization of health that includes intrapersonal, interpersonal, organizational, environmental, and public policy factors. The socioecological framework emphasizes multiple levels of influence and supports the idea that behaviors both affect and are affected by vari...
journal_title:Journal of athletic training
pub_type: 杂志文章,评审
doi:10.4085/1062-6050-173-18
更新日期:2019-04-01 00:00:00
abstract:CONTEXT: Orientation is an important part of socialization and transition to practice, yet the orientation process for newly credentialed athletic trainers (ATs) is unknown. OBJECTIVE: To determine how newly credentialed ATs are oriented to their roles. DESIGN: Cross-sectional study. SETTING: Online survey. PAT...
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::States regulate professions to protect the public from harm by unqualified practitioners. Without regulation of athletic trainers (ATs), there is no legal way to assure quality health care to athletes because there is no legal definition as to what an AT can and cannot do. Problems exist, however; 1) ATs nationwide ma...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:1996-04-01 00:00:00
abstract:CONTEXT:Instruction can be used to alter the biomechanical movement patterns associated with anterior cruciate ligament (ACL) injuries. OBJECTIVE:To determine the effects of instruction through combination (self and expert) feedback or self-feedback on lower extremity kinematics during the box-drop-jump task, running-...
journal_title:Journal of athletic training
pub_type: 杂志文章,随机对照试验
doi:10.4085/1062-6050-48.2.09
更新日期:2013-03-01 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:OBJECTIVE:To determine if Flex-all 454, as advertised, is effective as a thermal ultrasound couplant. DESIGN AND SETTING:Research design was a one-factor analysis of variance. Subjects received three (alternating order) ultrasound treatments (1 MHz at 1.5 W/cm(2) for 10 minutes) using the following couplants: 50% Flex...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:1998-04-01 00:00:00
abstract::The efficacy of prophylactic knee bracing has been refuted with regard to reducing the incidence and/or severity of injuries to the knee joint. This is thought to be a result of the prophylactic knee brace's ineffectiveness in protecting the knee joint from valgus loads. Furthermore, discrepancies exist regarding the ...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:1993-01-01 00:00:00
abstract:CONTEXT:As health care providers, certified athletic trainers (ATs) should be role models for healthy behaviors. OBJECTIVE:To analyze the self-reported health and fitness habits of ATs. DESIGN:A cross-sectional, cluster random sample. SETTING:Online questionnaire. PATIENTS OR OTHER PARTICIPANTS:Of a sampling frame ...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-43.6.617
更新日期:2008-10-01 00:00:00
abstract:OBJECTIVE:To present an organized approach to the assessment and treatment of symptomatic recurrent anterior shoulder instability. BACKGROUND:Knowledge of the relevant pathology and pathomechanics serves as an excellent foundation for the clinical examination, rehabilitation, and if necessary, surgical intervention fo...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:2000-07-01 00:00:00
abstract::The purpose of this investigation was to determine the interrater reliability of peak torque and total work values obtained with isokinetic measures of knee flexion and extension. Eight male and eight female students were evaluated on four occasions by four different examiners (range of isokinetic test experience: 0 t...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:1995-06-01 00:00:00
abstract:OBJECTIVE:To determine the effect of a 6-week leg press training program on quadriceps femoris peak torque and lower extremity functional performance. DESIGN AND SETTING:A 2 x 3 factorial design. A private university-based outpatient physical therapy clinic was used for testing. The university strength and conditionin...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:1996-10-01 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:The importance of addressing psychological issues in athletic injury rehabilitation has been recognized by the medical community. When and how to address psychological ramifications of injury, however, have not been given sufficient attention. BACKGROUND:VARIOUS FACTORS ARE ASSOCIATED WITH ATHLETIC INJURY: m...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:1996-07-01 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:CONTEXT: Because of the increasing popularity of participation in Irish dance, the incidence of lower limb injuries is high among this competitive population. OBJECTIVE: To investigate the effects of fatigue on the peak lower limb and trunk angles as well as the peak lower limb joint forces and moments of competitiv...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-52.3.12
更新日期:2017-07-01 00:00:00
abstract::While the high school setting holds the best promise of employment for the recently certified athletic trainer, most student athletic trainers do not spend time working with the secondary school athlete. The athletic trainer must be aware of the stages of adolescent psychological maturity and be sensitive to the athle...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:1993-04-01 00:00:00
abstract:CONTEXT:Little is known about pitching performance or lack of it among Major League Baseball (MLB) pitchers who undergo operative treatment of rotator cuff tears. OBJECTIVE:To assess pitching performance outcomes in MLB players who needed operative treatment of rotator cuff tears and to compare performance in these at...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-46.3.296
更新日期:2011-05-01 00:00:00
abstract:CONTEXT: Our knowledge of the current epidemiology of skin infections among wrestlers is limited. OBJECTIVE: To analyze and report the epidemiology of skin infections among National Collegiate Athletic Association (NCAA) men's wrestling student-athletes during the 2009-2010 through 2013-2014 academic years. DESIGN:...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-52.2.16
更新日期:2017-05-01 00:00:00
abstract:OBJECTIVE:To determine injury types, natures, anatomical locations, recommended amount of time missed, and injury rates during weightlifting training. DESIGN AND SETTING:We collected and analyzed medical injury records of resident athletes and during numerous training camps to generate an injury profile. SUBJECTS:Eli...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:1999-07-01 00:00:00
abstract::Sport specialization is a training method now commonly used by young athletes who hope to achieve elite-level success. This may be defined as (1) choosing a main sport, (2) quitting all other sports to focus on 1 sport, and (3) year-round training (greater than 8 months per year). A number of sports medicine organizat...
journal_title:Journal of athletic training
pub_type: 杂志文章,评审
doi:10.4085/1062-6050-380-18
更新日期:2019-10-01 00:00:00
abstract:CONTEXT:Neuromuscular dysfunction of the leg and thigh musculature, including decreased strength and postural control, is common in patients with chronic ankle instability (CAI). Understanding how CAI affects specific neural pathways may provide valuable information for targeted therapies. OBJECTIVE:To investigate dif...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-50.4.06
更新日期:2015-08-01 00:00:00
abstract:CONTEXT:The sideline assessment of concussion is challenging, given its variable presentations, the limited sensitivity and specificity of sideline assessment tools, and how the presentation of the injury evolves over time. In addition, the diagnostic process, as well as the tools used to assess and manage concussion, ...
journal_title:Journal of athletic training
pub_type: 杂志文章,评审
doi:10.4085/1062-6050-52.1.08
更新日期:2017-03-01 00:00:00