Effects of isolated shoulder versus core-shoulder chain exercises on motor control and isokinetic torque in baseball pitchers with shoulder impingement syndrome: A single-blinded randomized controlled trial.

Choi, Hyoungjoo; Kwon, Ohyun; Choi, Woochol J; You, Joshua Sung H

Choi, Hyoungjoo; Kwon, Ohyun; Choi, Woochol J; You, Joshua Sung H.

Afiliación

Choi H; Department of Medicine and Science, Korean Sports & Olympic Committee, Jincheon-gun, Republic of Korea.
Kwon O; Department of Physical Therapy, Sports Movement Artificial Robotics Technology (SMART) Institute, Wonju-si, Republic of Korea.
Choi WJ; Department of Physical Therapy, Yonsei University, Wonju-si, Republic of Korea.
You JSH; Department of Physical Therapy, Yonsei University, Wonju-si, Republic of Korea.

J Sports Sci ; 42(14): 1331-1340, 2024 Jul.

Article en En | MEDLINE | ID: mdl-39158032

ABSTRACT

ABSTRACT

Recent biomechanical evidence suggests that shoulder impingement syndrome (SIS) is closely linked with altered core-shoulder kinetic chain, resulting pain, altered external shoulder muscle activation, and external muscle weakness. We aimed to compare the effects of conventional isolated shoulder exercise (ISE) and core-shoulder chain exercises (CCE) during isokinetic shoulder rotation in baseball pitchers with SIS. Forty male college baseball pitchers with SIS were randomly allocated to ISE and CCE groups and they performed the exercises 3 times a week for 6 weeks. The standardised numerical pain rating scale (NPRS), shoulder pain and disability index (SPADI), electromyography (EMG) amplitude, and concentric (CON) and eccentric (ECC) torques were measured. Substantial improvements in NPRS and SPADI scores were observed after CCE compared to ISE (p ≤ 0.046). Internal oblique/transversus abdominis, rectus abdominis, external oblique, serratus anterior, and infraspinatus muscle activation were significantly higher after CCE than ISE (p ≤ 0.033). CON and ECC torques were higher after CCE than ISE (p ≤ 0.002). The present findings demonstrated superior therapeutic effects of CCE in improving pain, disability level, shoulder muscle activation, and torque (muscle strength) in baseball pitchers with SIS compared to the conventional ISE, highlighting the importance of the chain exercise concept.

Asunto(s)

Béisbol; Electromiografía; Terapia por Ejercicio; Síndrome de Abducción Dolorosa del Hombro; Torque; Humanos; Béisbol/fisiología; Masculino; Síndrome de Abducción Dolorosa del Hombro/fisiopatología; Síndrome de Abducción Dolorosa del Hombro/terapia; Adulto Joven; Método Simple Ciego; Terapia por Ejercicio/métodos; Hombro/fisiopatología; Hombro/fisiología; Músculo Esquelético/fisiología; Músculo Esquelético/fisiopatología; Rotación; Fuerza Muscular/fisiología; Fenómenos Biomecánicos; Dimensión del Dolor

Palabras clave

Baseball pitcher; core-shoulder chain exercises; isolated shoulder exercises; shoulder impingement syndrome

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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Béisbol / Síndrome de Abducción Dolorosa del Hombro / Torque / Electromiografía / Terapia por Ejercicio Límite: Adult / Humans / Male Idioma: En Revista: J Sports Sci Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido

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