Evaluation of flexor digitorum superficialis function in adolescent baseball players

Hypothesis and/or Background: Increased flexor digitorum superficialis (FDS) tendon activity can be a therapeutic target for elbow disorders in adolescent baseball players. The proportion of adolescent baseball players who can use FDS independently is unknown, and which finger is most often used rem...

Full description

Bibliographic Details
Main Authors: Hiroyoshi Masuma, PT, Tomonori Kenmoku, MD, PhD, Kazuo Saito, OT, Masashi Kawabata, PT, Hiroyuki Watanabe, PT, Kazumasa Miida, PT, Kenji Onuma, MD, PhD, Koji Sukegawa, MD, PhD, Ryo Tazawa, MD, PhD, Yuya Otake, MD, Masashi Takaso, MD, PhD
Format: Article
Language:English
Published: Elsevier 2023-01-01
Series:JSES International
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666638322001967
_version_ 1828048233629220864
author Hiroyoshi Masuma, PT
Tomonori Kenmoku, MD, PhD
Kazuo Saito, OT
Masashi Kawabata, PT
Hiroyuki Watanabe, PT
Kazumasa Miida, PT
Kenji Onuma, MD, PhD
Koji Sukegawa, MD, PhD
Ryo Tazawa, MD, PhD
Yuya Otake, MD
Masashi Takaso, MD, PhD
author_facet Hiroyoshi Masuma, PT
Tomonori Kenmoku, MD, PhD
Kazuo Saito, OT
Masashi Kawabata, PT
Hiroyuki Watanabe, PT
Kazumasa Miida, PT
Kenji Onuma, MD, PhD
Koji Sukegawa, MD, PhD
Ryo Tazawa, MD, PhD
Yuya Otake, MD
Masashi Takaso, MD, PhD
author_sort Hiroyoshi Masuma, PT
collection DOAJ
description Hypothesis and/or Background: Increased flexor digitorum superficialis (FDS) tendon activity can be a therapeutic target for elbow disorders in adolescent baseball players. The proportion of adolescent baseball players who can use FDS independently is unknown, and which finger is most often used remains unclear. This study investigated whether adolescent baseball players intentionally used FDS on each finger. Methods: Adolescent baseball players were recruited and assessed for FDS function for each finger using the standard technique. Results: Sixty-nine participants (mean age: 10.4 years) were recruited. Participants numbered 33, 56, 59, and 25 on the throwing side and those numbered 28, 46, 54, and 33 on the nonthrowing side could independently flex the proximal interphalangeal joint while holding their palms in the index, middle, ring, and small fingers, respectively. When assessing both throwing and nonthrowing participants, a significant number of participants could independently flex the proximal interphalangeals of the ring and middle fingers but had difficulty with the index and small fingers (P < .001). No significant difference was noted between the throwing and nonthrowing participants in any finger (P > .05). Discussion and/or Conclusion: One study reported that participating baseball players with elbow pain have more medial elbow joint space than those without pain symptoms. In another study on finger movements during pitching motion, the force of the thumb, index, middle, and ring fingers was greatest immediately before maximum external rotation. According to both reports, FDS function, especially in the index finger, can be a therapeutic target for medial-sided elbow injuries in adolescent baseball players.
first_indexed 2024-04-10T18:53:17Z
format Article
id doaj.art-1c5e20bd0f2843c988da09538e13e8d9
institution Directory Open Access Journal
issn 2666-6383
language English
last_indexed 2024-04-10T18:53:17Z
publishDate 2023-01-01
publisher Elsevier
record_format Article
series JSES International
spelling doaj.art-1c5e20bd0f2843c988da09538e13e8d92023-02-01T04:28:09ZengElsevierJSES International2666-63832023-01-0171143146Evaluation of flexor digitorum superficialis function in adolescent baseball playersHiroyoshi Masuma, PT0Tomonori Kenmoku, MD, PhD1Kazuo Saito, OT2Masashi Kawabata, PT3Hiroyuki Watanabe, PT4Kazumasa Miida, PT5Kenji Onuma, MD, PhD6Koji Sukegawa, MD, PhD7Ryo Tazawa, MD, PhD8Yuya Otake, MD9Masashi Takaso, MD, PhD10Department of Rehabilitation, Kitasato University Hospital, Sagamihara, JapanDepartment of Orthopaedic Surgery, School of Medicine, Kitasato University Sagamihara, Japan; Corresponding author: Tomonori Kenmoku, MD, PhD, Department of Orthopaedic Surgery, School of Medicine, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0570, Japan.Department of Health Science, Tokyo Kasei University, Sayama, JapanDepartment of Allied Health Sciences, Kitasato University, Sagamihara, JapanDepartment of Allied Health Sciences, Kitasato University, Sagamihara, JapanDepartment of Rehabilitation, Kitasato University Hospital, Sagamihara, JapanDepartment of Orthopaedic Surgery, School of Medicine, Kitasato University Sagamihara, JapanDepartment of Orthopaedic Surgery, School of Medicine, Kitasato University Sagamihara, JapanDepartment of Orthopaedic Surgery, School of Medicine, Kitasato University Sagamihara, JapanDepartment of Orthopaedic Surgery, School of Medicine, Kitasato University Sagamihara, JapanDepartment of Orthopaedic Surgery, School of Medicine, Kitasato University Sagamihara, JapanHypothesis and/or Background: Increased flexor digitorum superficialis (FDS) tendon activity can be a therapeutic target for elbow disorders in adolescent baseball players. The proportion of adolescent baseball players who can use FDS independently is unknown, and which finger is most often used remains unclear. This study investigated whether adolescent baseball players intentionally used FDS on each finger. Methods: Adolescent baseball players were recruited and assessed for FDS function for each finger using the standard technique. Results: Sixty-nine participants (mean age: 10.4 years) were recruited. Participants numbered 33, 56, 59, and 25 on the throwing side and those numbered 28, 46, 54, and 33 on the nonthrowing side could independently flex the proximal interphalangeal joint while holding their palms in the index, middle, ring, and small fingers, respectively. When assessing both throwing and nonthrowing participants, a significant number of participants could independently flex the proximal interphalangeals of the ring and middle fingers but had difficulty with the index and small fingers (P < .001). No significant difference was noted between the throwing and nonthrowing participants in any finger (P > .05). Discussion and/or Conclusion: One study reported that participating baseball players with elbow pain have more medial elbow joint space than those without pain symptoms. In another study on finger movements during pitching motion, the force of the thumb, index, middle, and ring fingers was greatest immediately before maximum external rotation. According to both reports, FDS function, especially in the index finger, can be a therapeutic target for medial-sided elbow injuries in adolescent baseball players.http://www.sciencedirect.com/science/article/pii/S2666638322001967Adolescent baseball playersFlexor digitorum superficialisMedial elbow disordersElbowFinger functionRehabilitation
spellingShingle Hiroyoshi Masuma, PT
Tomonori Kenmoku, MD, PhD
Kazuo Saito, OT
Masashi Kawabata, PT
Hiroyuki Watanabe, PT
Kazumasa Miida, PT
Kenji Onuma, MD, PhD
Koji Sukegawa, MD, PhD
Ryo Tazawa, MD, PhD
Yuya Otake, MD
Masashi Takaso, MD, PhD
Evaluation of flexor digitorum superficialis function in adolescent baseball players
JSES International
Adolescent baseball players
Flexor digitorum superficialis
Medial elbow disorders
Elbow
Finger function
Rehabilitation
title Evaluation of flexor digitorum superficialis function in adolescent baseball players
title_full Evaluation of flexor digitorum superficialis function in adolescent baseball players
title_fullStr Evaluation of flexor digitorum superficialis function in adolescent baseball players
title_full_unstemmed Evaluation of flexor digitorum superficialis function in adolescent baseball players
title_short Evaluation of flexor digitorum superficialis function in adolescent baseball players
title_sort evaluation of flexor digitorum superficialis function in adolescent baseball players
topic Adolescent baseball players
Flexor digitorum superficialis
Medial elbow disorders
Elbow
Finger function
Rehabilitation
url http://www.sciencedirect.com/science/article/pii/S2666638322001967
work_keys_str_mv AT hiroyoshimasumapt evaluationofflexordigitorumsuperficialisfunctioninadolescentbaseballplayers
AT tomonorikenmokumdphd evaluationofflexordigitorumsuperficialisfunctioninadolescentbaseballplayers
AT kazuosaitoot evaluationofflexordigitorumsuperficialisfunctioninadolescentbaseballplayers
AT masashikawabatapt evaluationofflexordigitorumsuperficialisfunctioninadolescentbaseballplayers
AT hiroyukiwatanabept evaluationofflexordigitorumsuperficialisfunctioninadolescentbaseballplayers
AT kazumasamiidapt evaluationofflexordigitorumsuperficialisfunctioninadolescentbaseballplayers
AT kenjionumamdphd evaluationofflexordigitorumsuperficialisfunctioninadolescentbaseballplayers
AT kojisukegawamdphd evaluationofflexordigitorumsuperficialisfunctioninadolescentbaseballplayers
AT ryotazawamdphd evaluationofflexordigitorumsuperficialisfunctioninadolescentbaseballplayers
AT yuyaotakemd evaluationofflexordigitorumsuperficialisfunctioninadolescentbaseballplayers
AT masashitakasomdphd evaluationofflexordigitorumsuperficialisfunctioninadolescentbaseballplayers