Clinical methods to quantify trunk mobility in an elite male surfing population

Furness, James; Climstein, Mike; Sheppard, Jeremy M.; Abbott, Allan; Hing, Wayne

doi:10.1016/j.ptsp.2015.09.003

Cited by 11 publications

(15 citation statements)

References 19 publications

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“…A total of 21 (18 males and 3 females; 25.29 ± 2.67 years, 80.01 ± 12.43 kg and 177.10 ± 9.02 m) subjects were enrolled to establish intra-rater reliability. Similar sample sizes have been used in both clinical and surf specific studies investigating intra-rater reliability [ 12 , 13 ]. A subset of 12 (9 males and 3 females; 26.00 ± 3.81 years, 78.10 ± 12.57 kg, 177.68 ± 9.47 m) subjects were used to establish inter-rater reliability of the testing procedure.…”

Section: Methodsmentioning

confidence: 99%

Profiling Shoulder Strength in Competitive Surfers

Furness

Schram

Cottman-Fields

et al. 2018

Sports

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The shoulder region has the highest incidence of acute injuries in the sport of surfing. Little is known about the strength profile at the shoulder in a surfing cohort. The primary aim of this study was to establish the reliability of a rotator cuff strength testing procedure for surfers with a secondary aim of providing a profile of internal and external rotation strength in a competitive surfing cohort. Shoulder internal rotation and external rotation isometric strength was measured using a hand-held dynamometer in 13 competitive surfers. Intra-class coefficient values ranged from 0.97 to 0.98 for intra-rater reliability and were lower for inter-rater reliability ranging from 0.80 to 0.91. Internal rotation strength was greater than external rotation strength bilaterally (dominant, p = 0.007, non-dominant, p < 0.001). No differences (p < 0.79) were found in internal rotation strength between the dominant and non-dominant arms. External rotation strength was weaker on the non-dominant arm compared with the dominant arm (p < 0.02). The non-dominant arm external rotation to internal rotation ratio (0.82 ± 0.15) was lower (p = 0.025) than the dominant arm (0.88 ± 0.14). The current procedure is reliable with the same clinician, and results indicate musculature asymmetry specific to the external rotators.

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Section: Methodsmentioning

confidence: 99%

Profiling Shoulder Strength in Competitive Surfers

Furness

Schram

Cottman-Fields

et al. 2018

Sports

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“…Thoracic spine mobility is a key component in many water-based sports including surfing, swimming and stand up paddleboarding (SUP) ( Furness, 2015 ; Pollard & Fernandez, 2004 ; Schram, 2015 ). In surfing, thoracic rotation is a critical movement during wave riding as it allows the surfer to produce sufficient torque to turn and perform maneuvers ( Furness et al, 2016 ). It is also hypothesised that a reduction in thoracic extension during the paddling phase of surfing could potentially result in greater stress on the lumbar or cervical spine ( Furness et al, 2014 ).…”

Section: Introductionmentioning

confidence: 99%

Reliability and concurrent validity of the iPhone^® Compass application to measure thoracic rotation range of motion (ROM) in healthy participants

Furness

Schram

Cox

et al. 2018

PeerJ

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BackgroundSeveral water-based sports (swimming, surfing and stand up paddle boarding) require adequate thoracic mobility (specifically rotation) in order to perform the appropriate activity requirements. The measurement of thoracic spine rotation is problematic for clinicians due to a lack of convenient and reliable measurement techniques. More recently, smartphones have been used to quantify movement in various joints in the body; however, there appears to be a paucity of research using smartphones to assess thoracic spine movement. Therefore, the aim of this study is to determine the reliability (intra and inter rater) and validity of the iPhone® app (Compass) when assessing thoracic spine rotation ROM in healthy individuals.MethodsA total of thirty participants were recruited for this study. Thoracic spine rotation ROM was measured using both the current clinical gold standard, a universal goniometer (UG) and the Smart Phone Compass app. Intra-rater and inter-rater reliability was determined with a Intraclass Correlation Coefficient (ICC) and associated 95% confidence intervals (CI). Validation of the Compass app in comparison to the UG was measured using Pearson’s correlation coefficient and levels of agreement were identified with Bland–Altman plots and 95% limits of agreement.ResultsBoth the UG and Compass app measurements both had excellent reproducibility for intra-rater (ICC 0.94–0.98) and inter-rater reliability (ICC 0.72–0.89). However, the Compass app measurements had higher intra-rater reliability (ICC = 0.96 − 0.98; 95% CI [0.93–0.99]; vs. ICC = 0.94 − 0.98; 95% CI [0.88–0.99]) and inter-rater reliability (ICC = 0.87 − 0.89; 95% CI [0.74–0.95] vs. ICC = 0.72 − 0.82; 95% CI [0.21–0.94]). A strong and significant correlation was found between the UG and the Compass app, demonstrating good concurrent validity (r = 0.835, p < 0.001). Levels of agreement between the two devices were 24.8° (LoA –9.5°, +15.3°). The UG was found to consistently measure higher values than the compass app (mean difference 2.8°, P < 0.001).ConclusionThis study reveals that the iPhone® app (Compass) is a reliable tool for measuring thoracic spine rotation which produces greater reproducibility of measurements both within and between raters than a UG. As a significant positive correlation exists between the Compass app and UG, this supports the use of either device in clinical practice as a reliable and valid tool to measure thoracic rotation. Considering the levels of agreement are clinically unacceptable, the devices should not be used interchangeably for initial and follow up measurements.

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“…Other studies have shown limited adjacent-segment disease and low rates of reoperation following selective thoracic fusion [15][16][17][18] . There are limited data that specifically address the functional importance of thoracic spine range of motion with respect to healthrelated quality of life and athletic activities in patients with scoliosis, particularly those who participate in sports that demand substantial spinal motion such as dance, climbing, gymnastics, and hockey [19][20][21][22][23] . Additional work in this area is needed to establish baseline values of thoracic motion and whether such motion impacts function and health-related quality of life.…”

Section: Discussionmentioning

confidence: 99%

Measurable Thoracic Motion Remains at 1 Year Following Anterior Vertebral Body Tethering, with Sagittal Motion Greater Than Coronal Motion

Büyük

Milbrandt

Mathew

et al. 2021

Journal of Bone and Joint Surgery

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Background:Anterior vertebral body tethering is an alternative to fusion surgery for the treatment of adolescent idiopathic scoliosis (AIS) that is purported to preserve spinal motion. There is limited information regarding the measurable motion that is maintained over the instrumented levels following thoracic anterior vertebral body tethering surgery in humans. The purpose of the present study was to assess radiographic spinal motion 1 year after anterior vertebral body tethering.Methods:As part of a prospective U.S. Food and Drug Administration investigational device exemption study, 32 patients were treated with thoracic anterior vertebral body tethering. At 1 year postoperatively, patients were evaluated with standing flexion-extension and side-bending radiographs in a microdose biplanar slot scanning imaging system. The angle subtended by the screws at the upper instrumented vertebra (UIV) and lower instrumented vertebra (LIV) was measured on left and right-bending radiographs to evaluate the coronal arc of motion and was compared with preoperative values over the same levels. At 1 year postoperatively, the sagittal Cobb angle was measured over the instrumented levels on flexion and extension radiographs.Results:Side-bending radiographs revealed that the mean angle subtended by the screws changed from 15° ± 8° on left-bending radiographs to 8° ± 6° on right-bending radiographs. The mean coronal arc of motion on bending was 7° ± 6°, with 20 (62.5%) of 32 patients having a coronal arc of motion of >5°. The mean preoperative coronal arc of motion over the instrumented segments was 30° ± 9°. On flexion-extension lateral radiographs made at 1 year postoperatively, the mean kyphotic angle over the instrumented segments was 33° ± 13° in flexion and 11° ± 14° in extension, for a mean postoperative arc of motion of 21° ± 12° between flexion and extension radiographs.Conclusions:At 1 year following thoracic anterior vertebral body tethering for the treatment of AIS, the thoracic spine showed a measurable range of coronal and sagittal plane motion over the instrumented levels without evidence of complete autofusion. Motion in the coronal plane decreased by 77% following anterior vertebral body tethering. These findings provide proof of concept that sagittal spinal motion is preserved after thoracic anterior vertebral body tethering, although the functional importance remains to be determined.Level of Evidence:Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.

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Clinical methods to quantify trunk mobility in an elite male surfing population

Cited by 11 publications

References 19 publications

Profiling Shoulder Strength in Competitive Surfers

Profiling Shoulder Strength in Competitive Surfers

Reliability and concurrent validity of the iPhone^® Compass application to measure thoracic rotation range of motion (ROM) in healthy participants

Measurable Thoracic Motion Remains at 1 Year Following Anterior Vertebral Body Tethering, with Sagittal Motion Greater Than Coronal Motion

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Clinical methods to quantify trunk mobility in an elite male surfing population

Cited by 11 publications

References 19 publications

Profiling Shoulder Strength in Competitive Surfers

Profiling Shoulder Strength in Competitive Surfers

Reliability and concurrent validity of the iPhone® Compass application to measure thoracic rotation range of motion (ROM) in healthy participants

Measurable Thoracic Motion Remains at 1 Year Following Anterior Vertebral Body Tethering, with Sagittal Motion Greater Than Coronal Motion

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Product

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Reliability and concurrent validity of the iPhone^® Compass application to measure thoracic rotation range of motion (ROM) in healthy participants