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Shoulder Rotator Strength Profile in...

Lowe, Kelli Usa.

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Shoulder Rotator Strength Profile in Adolescent Female Volleyball Players.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Shoulder Rotator Strength Profile in Adolescent Female Volleyball Players./
Author:	Lowe, Kelli Usa.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
Description:	47 p.
Notes:	Source: Dissertations Abstracts International, Volume: 82-10, Section: B.
Contained By:	Dissertations Abstracts International82-10B.
Subject:	Physical therapy. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28414360
ISBN:	9798597097848

Shoulder Rotator Strength Profile in Adolescent Female Volleyball Players.
Lowe, Kelli Usa.

Shoulder Rotator Strength Profile in Adolescent Female Volleyball Players. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 47 p.

Source: Dissertations Abstracts International, Volume: 82-10, Section: B.

Thesis (D.P.T.)--California State University, Fresno, 2021.

This item must not be sold to any third party vendors.

Due to the musculoskeletal changes observed in shoulders of overhead athletes and the increased risk of injury in the adolescent female athlete population, the purpose of this study is to evaluate peak isometric glenohumeral external rotation (ER) strength, internal rotation (IR) strength and external-to- internal rotation (ER:IR) strength ratio in the dominant (D) and non-dominant (ND) shoulders of adolescent female volleyball players. Fifteen asymptomatic adolescent female club volleyball players (age = 14.8 ± 1.01 years, height = 164.0 ± 5.21 cm, weight = 59.25 ± 14.39 kg) completed isometric strength testing for shoulder IR and ER. SPSS software was used for descriptive and inferential statistics. All participants presented with IR strength weakness and ER:IR strength ratios greater than the normal range. No significant difference between D and ND IR strength (p = 0.362, d = 0.20, power = 7.7%) and ER:IR strength ratio (p = 0.856, d = 0.05, power = 4.1%) was observed. Although D ER strength was statistically greater than ND strength (p = 0.011), it was not clinically meaningful due to a low power (8.1%) and small effect size (d = 0.20). The current study did not observe a clinically significant difference in glenohumeral rotational strength bilaterally. However, the raw values of IR strength revealed significant weakness which contributed to abnormal strength ratio. The results demonstrate the need to consider each arm individually in adolescent athletes, rather than comparing bilaterally. Further research is needed to develop normative shoulder rotation strength values in the female adolescent volleyball population to then apply a preventative training program addressing adaptations that have been associated with injury in older volleyball players.

ISBN: 9798597097848Subjects--Topical Terms:

588713
Physical therapy.
Subjects--Index Terms:

Adolescent

Shoulder Rotator Strength Profile in Adolescent Female Volleyball Players.
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300 $a 47 p.
500 $a Source: Dissertations Abstracts International, Volume: 82-10, Section: B.
500 $a Advisor: Roos, Jennifer.
502 $a Thesis (D.P.T.)--California State University, Fresno, 2021.
506 $a This item must not be sold to any third party vendors.
520 $a Due to the musculoskeletal changes observed in shoulders of overhead athletes and the increased risk of injury in the adolescent female athlete population, the purpose of this study is to evaluate peak isometric glenohumeral external rotation (ER) strength, internal rotation (IR) strength and external-to- internal rotation (ER:IR) strength ratio in the dominant (D) and non-dominant (ND) shoulders of adolescent female volleyball players. Fifteen asymptomatic adolescent female club volleyball players (age = 14.8 ± 1.01 years, height = 164.0 ± 5.21 cm, weight = 59.25 ± 14.39 kg) completed isometric strength testing for shoulder IR and ER. SPSS software was used for descriptive and inferential statistics. All participants presented with IR strength weakness and ER:IR strength ratios greater than the normal range. No significant difference between D and ND IR strength (p = 0.362, d = 0.20, power = 7.7%) and ER:IR strength ratio (p = 0.856, d = 0.05, power = 4.1%) was observed. Although D ER strength was statistically greater than ND strength (p = 0.011), it was not clinically meaningful due to a low power (8.1%) and small effect size (d = 0.20). The current study did not observe a clinically significant difference in glenohumeral rotational strength bilaterally. However, the raw values of IR strength revealed significant weakness which contributed to abnormal strength ratio. The results demonstrate the need to consider each arm individually in adolescent athletes, rather than comparing bilaterally. Further research is needed to develop normative shoulder rotation strength values in the female adolescent volleyball population to then apply a preventative training program addressing adaptations that have been associated with injury in older volleyball players.
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