Reproducibility and discriminant validity of the Posterior Shoulder Endurance Test in healthy and painful populations

Neil A. Evans; Suzanne Konz; Arthur Nitz; Tim L. Uhl

doi:10.1016/j.ptsp.2020.10.014

Reproducibility and discriminant validity of the Posterior Shoulder Endurance Test in healthy and painful populations

Neil A. Evans, Suzanne Konz, Arthur Nitz, Tim L. Uhl

Physical Therapy

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Objective: This investigation measured the reproducibility and discriminant validity of the Posterior Shoulder Endurance Test (PSET) on painful and non-painful populations. Design: Reliability and validity study. Setting: Laboratory setting. Participants: Thirty subjects (male = 11; female = 19). Main outcome measures: Time to failure (TTF) was the primary outcome measure to determine reliability of the PSET. Discriminant validity identified with receiver operator characteristic (ROC) curves utilized TTF separately in men and women since they used different loads. Results: There were 25/30 subjects (painful = 12; non-painful = 13) tested a second time. ICC, SEM, and MDC90 ranged respectively from 0.77, 13.1 s, 30.6 s in the painful group to 0.85, 7.3 s, 17 s in the non-painful group. The male ROC curve AUC was 0.833 with 47 s resulting in the best combination of sensitivity = 0.833, and specificity = 0.80. The female ROC curve AUC was 0.633 with 46 s resulting in the best combination of sensitivity = 0.600 and specificity = 0.889 at 46 s. Conclusion: The PSET is a reliable way to measure shoulder girdle muscular endurance. These data suggest that the PSET discriminates painful and non-painful individuals better in men compared to women.

Original language	English
Pages (from-to)	66-71
Number of pages	6
Journal	Physical Therapy in Sport
Volume	47
DOIs	https://doi.org/10.1016/j.ptsp.2020.10.014
State	Published - Jan 2021

Bibliographical note

Funding Information:
The authors would like to acknowledge the physical therapy students that assisted as research assistants during data collection as part of their capstone requirement for their Doctor of Physical Therapy degrees. We also acknowledge the School or Physical Therapy at Marshall University for helping to provide the facilities and resources to conduct this research.

Publisher Copyright:
© 2020 Elsevier Ltd

Keywords

Discriminant validity
Shoulder endurance
Test re-test reliability

ASJC Scopus subject areas

Orthopedics and Sports Medicine
Physical Therapy, Sports Therapy and Rehabilitation

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10.1016/j.ptsp.2020.10.014

Cite this

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title = "Reproducibility and discriminant validity of the Posterior Shoulder Endurance Test in healthy and painful populations",

abstract = "Objective: This investigation measured the reproducibility and discriminant validity of the Posterior Shoulder Endurance Test (PSET) on painful and non-painful populations. Design: Reliability and validity study. Setting: Laboratory setting. Participants: Thirty subjects (male = 11; female = 19). Main outcome measures: Time to failure (TTF) was the primary outcome measure to determine reliability of the PSET. Discriminant validity identified with receiver operator characteristic (ROC) curves utilized TTF separately in men and women since they used different loads. Results: There were 25/30 subjects (painful = 12; non-painful = 13) tested a second time. ICC, SEM, and MDC90 ranged respectively from 0.77, 13.1 s, 30.6 s in the painful group to 0.85, 7.3 s, 17 s in the non-painful group. The male ROC curve AUC was 0.833 with 47 s resulting in the best combination of sensitivity = 0.833, and specificity = 0.80. The female ROC curve AUC was 0.633 with 46 s resulting in the best combination of sensitivity = 0.600 and specificity = 0.889 at 46 s. Conclusion: The PSET is a reliable way to measure shoulder girdle muscular endurance. These data suggest that the PSET discriminates painful and non-painful individuals better in men compared to women.",

keywords = "Discriminant validity, Shoulder endurance, Test re-test reliability",

author = "Evans, {Neil A.} and Suzanne Konz and Arthur Nitz and Uhl, {Tim L.}",

note = "Funding Information: The authors would like to acknowledge the physical therapy students that assisted as research assistants during data collection as part of their capstone requirement for their Doctor of Physical Therapy degrees. We also acknowledge the School or Physical Therapy at Marshall University for helping to provide the facilities and resources to conduct this research. Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

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doi = "10.1016/j.ptsp.2020.10.014",

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AU - Konz, Suzanne

AU - Nitz, Arthur

AU - Uhl, Tim L.

N1 - Funding Information: The authors would like to acknowledge the physical therapy students that assisted as research assistants during data collection as part of their capstone requirement for their Doctor of Physical Therapy degrees. We also acknowledge the School or Physical Therapy at Marshall University for helping to provide the facilities and resources to conduct this research. Publisher Copyright: © 2020 Elsevier Ltd

PY - 2021/1

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N2 - Objective: This investigation measured the reproducibility and discriminant validity of the Posterior Shoulder Endurance Test (PSET) on painful and non-painful populations. Design: Reliability and validity study. Setting: Laboratory setting. Participants: Thirty subjects (male = 11; female = 19). Main outcome measures: Time to failure (TTF) was the primary outcome measure to determine reliability of the PSET. Discriminant validity identified with receiver operator characteristic (ROC) curves utilized TTF separately in men and women since they used different loads. Results: There were 25/30 subjects (painful = 12; non-painful = 13) tested a second time. ICC, SEM, and MDC90 ranged respectively from 0.77, 13.1 s, 30.6 s in the painful group to 0.85, 7.3 s, 17 s in the non-painful group. The male ROC curve AUC was 0.833 with 47 s resulting in the best combination of sensitivity = 0.833, and specificity = 0.80. The female ROC curve AUC was 0.633 with 46 s resulting in the best combination of sensitivity = 0.600 and specificity = 0.889 at 46 s. Conclusion: The PSET is a reliable way to measure shoulder girdle muscular endurance. These data suggest that the PSET discriminates painful and non-painful individuals better in men compared to women.

AB - Objective: This investigation measured the reproducibility and discriminant validity of the Posterior Shoulder Endurance Test (PSET) on painful and non-painful populations. Design: Reliability and validity study. Setting: Laboratory setting. Participants: Thirty subjects (male = 11; female = 19). Main outcome measures: Time to failure (TTF) was the primary outcome measure to determine reliability of the PSET. Discriminant validity identified with receiver operator characteristic (ROC) curves utilized TTF separately in men and women since they used different loads. Results: There were 25/30 subjects (painful = 12; non-painful = 13) tested a second time. ICC, SEM, and MDC90 ranged respectively from 0.77, 13.1 s, 30.6 s in the painful group to 0.85, 7.3 s, 17 s in the non-painful group. The male ROC curve AUC was 0.833 with 47 s resulting in the best combination of sensitivity = 0.833, and specificity = 0.80. The female ROC curve AUC was 0.633 with 46 s resulting in the best combination of sensitivity = 0.600 and specificity = 0.889 at 46 s. Conclusion: The PSET is a reliable way to measure shoulder girdle muscular endurance. These data suggest that the PSET discriminates painful and non-painful individuals better in men compared to women.

KW - Discriminant validity

KW - Shoulder endurance

KW - Test re-test reliability

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Reproducibility and discriminant validity of the Posterior Shoulder Endurance Test in healthy and painful populations

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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