Radioulnar Range of Motion Normative Values for Elite Baseball Players

2013 ◽  
Vol 18 (6) ◽  
pp. 32-35
Author(s):  
Kevin Laudner ◽  
Robert Lynall ◽  
Jeffrey Williams ◽  
Regan Wong ◽  
Takashi Onuki ◽  
...  

Context:Numerous studies have documented reduced glenohumeral joint range of motion (ROM) of the dominant extremity among baseball players, which may be caused by throwing-related factors that also affect the radioulnar joint.Objective:To measure pronation and supination ROM in competitive baseball pitchers and position players.Participants:Asymptomatic professional and collegiate baseball pitchers (N = 59) and position players (N = 43).Outcome Measures:Bilateral radioulnar pronation and supination ROM.Results:Pitchers demonstrated significantly less pronation and total ROM in the throwing arm than the nondominant arm. The position players demonstrated significantly less total ROM in the throwing arm than the nondominant arm.Conclusions:The reported normative values may provide useful standards for interpretation of radioulnar ROM measured in both asymptomatic and symptomatic baseball players.

2016 ◽  
Vol 25 (3) ◽  
pp. 255-262 ◽  
Author(s):  
Gurtej S. Grewal ◽  
Rachel Baisch ◽  
Jacqueline Lee-Eng ◽  
Stephaine Wu ◽  
Beth Jarrett ◽  
...  

Context:Improvements in postural stability in figure skaters can play a significant role in performance, as well as reducing fall risk.Objective:To explore the effect of custom foot insoles on postural stability in advanced figure skaters.Design:Exploratory study.Setting:Out of laboratory.Participants:Nine advanced figure skaters were recruited and 7 completed the study (age 38 ± 18.5 y, body-mass index 25 ± 3.6 kg/m2).Intervention:Custom foot insoles.Main Outcome Measures:Primary outcome of changes in postural stability (PS) quantified by center-of-mass sway with secondary outcomes of ankleand hip-joint sway and joint range of motion. Sway measurements were assessed using body-worn sensors while participants wore skates on ice. PS was assessed in single-leg stance, as well as during gliding on the dominant foot.Results:A significant improvement in static PS was observed after 6-wk use of custom insoles. Center-of-mass sway reduced significantly on average by 48.44% (P = .023), and ankle-joint sway reduced by 45.7% (P = .05) during single-leg-stance balance measurements. During the gliding maneuver nonsignificant changes were observed for both ankle- and knee-joint range of motion.Conclusion:The results of this study suggest proof of concept toward benefits of custom insoles in improving postural stability in advanced figure skaters. To generalize the findings, randomized controlled trials with larger sample sizes are warranted.


Author(s):  
Dragana Cepmja ◽  
Katherine Maka

Purpose: Post-operative breast cancer patients receive physiotherapy to improve range of motion, reduce pain, and increase strength. The aim of this study was to provide qualitative information about which techniques are utilised by physiotherapists in the management of post-operative breast cancer patients in a hospital physiotherapy outpatient department setting in Western Sydney, Australia. Method: Common interventions were listed on a survey and physiotherapists were asked to select which treatment interventions they used and the frequency of use. Results: A total of 20 surveys were completed out of 25 disseminated. The most commonly used intervention was stretches with 100% of respondents using stretches frequently. This was followed by range of motion exercises with 95% using this intervention frequently. General arm care advice and postural education were frequently utilised by 80% of respondents. Conclusions: The most common physiotherapy interventions used in the management of post-operative breast cancer patients were shoulder stretches, glenohumeral joint range of motion exercises, general arm care advice, and postural education.


2019 ◽  
Vol 47 (6) ◽  
pp. 1434-1440 ◽  
Author(s):  
Dayana P. Rosa ◽  
Paula R. Camargo ◽  
John D. Borstad

Background: Altered glenohumeral joint range of motion can be caused by increased humeral retroversion (HR) and/or posterior capsule tightness (PCT). To make informed clinical decisions, it is vital to understand how HR and PCT alterations, individually and in combination, affect joint range of motion measurements. Purpose: To evaluate the effect of experimental tissue alterations on clinical range of motion measures. Study Design: Controlled laboratory study. Methods: Five clinical measurements were quantified in 8 fresh-frozen cadavers under 4 experimentally created conditions: baseline (no alterations), HR condition (20° increase in HR by transecting the bone), PCT condition (20% decrease in length via thermal energy), and PCT + HR combined. Clinical measurements included bicipital forearm angle, low flexion, glenohumeral internal and external rotation, and horizontal adduction. All measurements were taken by the same blinded tester. Separate 1-factor repeated measures analyses of variance were used to evaluate the effect of the alterations on each clinical measurement. Results: There was a significant main effect of condition for bicipital forearm angle ( P = .02, F = 4.03), low flexion ( P = .02, F = 3.86), internal rotation ( P = .03, F = 3.65), and external rotation ( P < .001, F = 15.15) but not for horizontal adduction ( P = .29, F = 1.33). The HR condition resulted in a decreased bicipital forearm angle of 16.1° and 15.8° as compared with the PCT and PCT + HR conditions, respectively. When compared with baseline, the PCT + HR condition decreased the low flexion test by 13.5°, and the HR condition decreased internal rotation range of motion by 14.2°. All conditions increased external rotation when compared with baseline. Conclusion: Greater measurement changes were noted in both HR conditions, suggesting that bony alterations influence motion to a greater extent than posterior capsule alterations. Clinical Relevance: Clinicians should be aware that humeral retroversion will influence the measurement of posterior shoulder tightness.


Children ◽  
2021 ◽  
Vol 8 (6) ◽  
pp. 515
Author(s):  
YounJung Park ◽  
Taeyang Lee ◽  
Minkyeong Seog ◽  
Seong-Oh Kim ◽  
Joohee Kim ◽  
...  

This study was designed to establish safe guidelines for pediatric dental practice regarding temporomandibular joint (TMJ) range of motion (ROM) and mouth area (MA). A total of 438 children aged 3–15 years old of homogenous ethnicity participated in the study; the distribution of participants was approximately equal (sex; n = 15; age, n = 30). Maximum mouth opening (MMO), body height, weight, and age of each participant were recorded, and the TMJ ROM including anterior and lateral movements, MA, and mouth width were documented. Males showed higher mouth width, MMO, and MA values than females. MMO and MA increased with age, height, and weight in a statistically significant manner. MMO of 40 mm is reached by the age of 5.2 years, at a height of 105.9 cm and a weight of 18.6 kg. MMO showed a moderate correlation with age, height, weight, and mouth width, and MA moderately correlated with mouth width. Anterior and lateral movements did not show any close relation to these aforementioned factors. The findings of this study suggest that forcible mouth opening over 40 mm should be more cautiously considered , especially in children shorter than 105 cm, lighter than 18 kg and in children under 5 years old.


2020 ◽  
Vol 35 (2) ◽  
pp. 153-157
Author(s):  
Masumi YOSHIMOTO ◽  
Hiroyuki WATANABE ◽  
Ryota KURATSUBO ◽  
Chikara AOKI

2021 ◽  
Author(s):  
Kelsey Biaggi ◽  
Brooke Farmer ◽  
Matthew Hobson ◽  
Curtis Self ◽  
Terry L. Grindstaff

Abstract Context: Shoulder range of motion (ROM) and strength are key injury evaluation components for overhead athletes. Most normative values are derived from male baseball players with limited information specific to female softball players. Objective: To determine between-limb differences in shoulder ROM and strength in healthy collegiate softball players. Design: Descriptive laboratory study. Setting: University research laboratory and collegiate athletic training room Participants: Twenty-three healthy collegiate softball players (age=19.9 ± 1.2y; height=170.5 ± 4.3cm; mass=78.4 ± 11.3kg). Interventions: Outcome measures included shoulder ROM (internal [IR] and external rotation [ER]), isometric strength (IR, ER, flexion, abduction [135 degrees], and horizontal abduction), and a measure of dynamic strength (Upper Quarter Y Balance Test [UQYBT]). Main Outcome Measures: Paired sample t-tests were used to determine between limb differences for each outcome measure. Results: Participants had significantly more ER ROM (12° more) and significantly less IR ROM (12° less) on the dominant arm, relative to the non-dominant arm. There were no significant differences between limbs for any of the isometric strength measures or for the UQYBT reach directions. Conclusions: While female collegiate softball players demonstrated typical changes in ER and IR ROM in the dominant arm, they demonstrated relatively symmetrical performance across strength measures, which contrasts with previous studies using male baseball players.


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