A Comparison of Two Isometric Tests of Trunk Flexor Endurance

Durall, Christopher J.; Greene, Paul F.; Kernozek, Thomas W.

doi:10.1519/jsc.0b013e318237ea1c

Cited by 27 publications

(17 citation statements)

References 15 publications

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“…30 Endurance of the anterior trunk muscles was assessed with the patient holding the body in a straight line, supported only by both forearms and feet (front plank position). 16 Endurance of the lateral trunk muscles was quantified with the patient holding the body in a straight line, while supported only by 1 forearm and the feet (sideplank position). 30 The arm used for support was the arm of the involved side, whereas the arm of the uninvolved side was held next to the trunk.…”

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confidence: 99%

“…Reliability of these tests has been reported to be excellent, with an ICC 3,1 ranging from 0.95 to 0.99 and an SEM ranging from 3.40 to 9.93 seconds. 16,30 Strength Evaluation Eccentric function of the musculature was selected for assessment because of its role in controlling lower-limb movement during weight-bearing activities. Eccentric strength of the hip and knee musculature was quantified in random order, using an isokinetic dynamometer (Biodex Multi-Joint System 2; Biodex Medical Systems, Inc, Shirley, NY).…”

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confidence: 99%

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Effects of Functional Stabilization Training on Pain, Function, and Lower Extremity Biomechanics in Women With Patellofemoral Pain: A Randomized Clinical Trial

Baldon¹,

Serrão²,

Silva³

et al. 2014

Journal of Orthopaedic & Sports Physical Therapy

135

162

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Study Design Randomized clinical trial. Objectives To compare the effects of functional stabilization training (FST) versus standard training on knee pain and function, lower-limb and trunk kinematics, trunk muscle endurance, and eccentric hip and knee muscle strength in women with patellofemoral pain. Background A combination of hip- and knee-strengthening exercise may be more beneficial than quadriceps strengthening alone to improve pain and function in individuals with patellofemoral pain. However, there is limited evidence of the effectiveness of these exercise programs on the biomechanics of the lower extremity. Methods Thirty-one women were randomized to either the FST group or standard-training group. Patients attended a baseline assessment session, followed by an 8-week intervention, and were reassessed at the end of the intervention and at 3 months after the intervention. Assessment measures were a 10-cm visual analog scale for pain, the Lower Extremity Functional Scale, and the single-leg triple-hop test. A global rating of change scale was used to measure perceived improvement. Kinematics were assessed during the single-leg squat. Outcome measures also included trunk endurance and eccentric hip and knee muscle strength assessment. Results The patients in the FST group had less pain at the 3-month follow-up and greater global improvement and physical function at the end of the intervention compared to those in the standard-training group. Lesser ipsilateral trunk inclination, pelvis contralateral depression, hip adduction, and knee abduction, along with greater pelvis anteversion and hip flexion movement excursions during the single-leg squat, were only observed in the FST group after the intervention. Only those in the FST group had greater eccentric hip abductor and knee flexor strength, as well as greater endurance of the anterior, posterior, and lateral trunk muscles, after training. Conclusion An intervention program consisting of hip muscle strengthening and lower-limb and trunk movement control exercises was more beneficial in improving pain, physical function, kinematics, and muscle strength compared to a program of quadriceps-strengthening exercises alone. Level of Evidence Therapy, level 2b-. J Orthop Sports Phys Ther 2014;44(4):240–251. Epub 25 February 2014. doi:10.2519/jospt.2014.4940

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mentioning

confidence: 99%

mentioning

confidence: 99%

Effects of Functional Stabilization Training on Pain, Function, and Lower Extremity Biomechanics in Women With Patellofemoral Pain: A Randomized Clinical Trial

Baldon¹,

Serrão²,

Silva³

et al. 2014

Journal of Orthopaedic & Sports Physical Therapy

135

162

View full text Add to dashboard Cite

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“…The reliability of the CS tests has been reported: flexor endurance test (ICC=0.98), Biering-Sorensen isometric extensor test (ICC=0.93), and left and rightbridge test (ICC=0.95) (Nesser et al, 2008). In addition, the prone bridge has shown to have a reliability of ICC=0.95 in healthy adults (Durall et al, 2012).…”

Section: Core Stability Testingmentioning

confidence: 99%

The Relationship Between Core Stability & Squat Ratio in Resistance-Trained Males

Ray

Adams

DeBeliso

2017

IJKSS

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Background: The lumbopelvic-hip complex, also referred to as the “core”, is composed of every muscle between the knees and sternum. The back squat (BS) and front squat (FS) are both staple exercises that challenge the core in different ways. Possessing a properly balanced squat ratio (SR = 1-RM FS/1-RM BS; 1-RM = one-repetition maximum) could lead to a more stable core. Objective: This study attempted to determine if there was a meaningful relationship between the SR and core strength (CS) in resistance-trained males. If a strong relation exists between the SR and CS, strength and conditioning professionals would have a readily available assessment tool for examining CS by simply viewing the SR. Method: Twenty-one resistance-trained males (age = 28.3 ± 6.2 years; body mass = 93.1 ± 13.1 kg; height = 181.9 ± 7.6 cm; weight training experience with FS & BS = 6.4 ± 3.7 years) performed CS tests (flexor endurance, extensor endurance, prone bridge, left side-bridge, and right side-bridge), along with a 1-RM in the BS and FS. An aggregate of the CS test times (CSA) was also calculated for comparison with the SR. A Pearson product-moment correlation coefficient (r) was used to compare the SR with the CS tests and the CSA. Results: The CS test results were as follows (secs): flexor endurance 228.2±93.0, extensor endurance 137.0±28.2, prone bridge 166.7±51.3, left side-bridge 97.36±31.0, right side-bridge 100.2±28.3, and CSA 729.8±165.4. The 1-RM BS, 1-RM FS, and SR were: 157.5±29.7 kgs, 132.2±24.3 kgs, and 0.84±0.06 respectively. A moderate correlation was found between total CSA and the SR (r = 0.50, CD2 = 0.25, p<0.05). In addition, a moderate correlation was found between the prone bridge test and the SR (r = 0.49, CD2 = 0.24, p<0.05). A very strong positive correlation was also found between 1-RM BS and 1-RM FS (r = 0.93, CD2 = 0.86, p<0.05). Conclusions: The results of this study suggest that the CSA and prone bridge test are moderately related to the SR. However, the low coefficient of determination between the SR and CS times suggests that the SR is not a suitable estimate of CS. The very strong relationship between the 1-RM FS and 1-RM BS provides strong evidence for the interchangeable use of these modalities within a resistance training protocol.

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“…Core strength was assessed using four tests: a full plank, lateral planks on the right and left sides, and the Biering-Sørensen test for extensor endurance (23). Both the Biering-Sørensen test and plank tests have excellent inter-rater reliability (ICC = 0.8-0.99 and ICC = 0.95, respectively) (23,24). Investigators demonstrated the correct positioning and allowed participants to try.…”

Section: Core Endurancementioning

confidence: 99%

MusicCohort: Cross-sectional feasibility study of an assessment protocol for student musicians

Bruder¹,

Ballenberger²,

Villas³

et al. 2020

Preprint

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This study examined the feasibility of employing an assessment battery developed in Germany, investigating mental and physical health of university music students, in Canada. Using a cross sectional design, first-semester music and control students were recruited at two university campuses. Eligibility criteria were: 1) first-semester, full-time undergraduate music major (case) or in another university program (control), 2) over the age of 16. Exclusion criteria were: 1) diagnosis of neurological, orthopaedic or psychological condition, 2) diagnosis of infection or systemic disease, 3) regular consumption of medication for pain or mental health diagnosis, 4) varsity athlete, 5) for controls only, enrollment in music courses where a grade is assigned for music performance (e.g. studio lessons). Both groups completed questionnaires and physical testing, including range of motion, core strength and pressure pain threshold. Data for 19 music and 50 control students were analysed. Musician participants demonstrated tendencies towards poorer mental and physical health. This German protocol is feasible in a Canadian university setting. Canadian music students demonstrate similar mental and physical health outcomes to those in the literature and in the parent study. The results of this feasibility study should be confirmed in a larger study.

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A Comparison of Two Isometric Tests of Trunk Flexor Endurance

Cited by 27 publications

References 15 publications

Effects of Functional Stabilization Training on Pain, Function, and Lower Extremity Biomechanics in Women With Patellofemoral Pain: A Randomized Clinical Trial

Effects of Functional Stabilization Training on Pain, Function, and Lower Extremity Biomechanics in Women With Patellofemoral Pain: A Randomized Clinical Trial

The Relationship Between Core Stability & Squat Ratio in Resistance-Trained Males

MusicCohort: Cross-sectional feasibility study of an assessment protocol for student musicians

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