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Full-Text Articles in Rehabilitation and Therapy
Effect Of Repeated Eccentric Exercise On Muscle Damage Markers And Motor Unit Control Strategies In Arm And Hand Muscle, Sunggun Jeon, Xin Ye, William M. Miller, Jun Seob Song
Effect Of Repeated Eccentric Exercise On Muscle Damage Markers And Motor Unit Control Strategies In Arm And Hand Muscle, Sunggun Jeon, Xin Ye, William M. Miller, Jun Seob Song
Faculty and Student Publications
To examine the contralateral repeated bout effect (CL-RBE) on muscle damage markers and motor unit (MU) control strategies, seventeen healthy adults performed two bouts of 60 eccentric contractions with elbow flexor (EF group; n = 9) or index finger abductor (IA group; n = 8) muscles, separated by 1 week. All participants randomly performed eccentric exercise on either the right or left arm or hand muscles, and muscle damage markers and submaximal trapezoid contraction tests were conducted pre, post, 1- and 2-day post eccentric protocol. One week after the first bout, the same exercise protocol and measurements were performed on …
Effect Of Arm Eccentric Exercise On Muscle Damage Of The Knee Flexors After High-Intensity Eccentric Exercise, Xin Ye, William M. Miller, Sunggun Jeon, Jun Seob Song, Tyler J. West
Effect Of Arm Eccentric Exercise On Muscle Damage Of The Knee Flexors After High-Intensity Eccentric Exercise, Xin Ye, William M. Miller, Sunggun Jeon, Jun Seob Song, Tyler J. West
Faculty and Student Publications
Repeated bout effect (RBE) describes a phenomenon that an initial unaccustomed eccentric exercise (ECC) bout can confer a protective effect against muscle damage from the subsequent same exercise. This protection has been observed in the same muscle, as well as the contralateral homologous (CL-RBE) muscle. But it is unknown whether the RBE is evident for non-local unrelated heterogonous muscles. The purpose of this study was to examine whether an initial elbow flexion (EF) muscle-damaging ECC could confer RBE against muscle damage from the subsequent ECC performed in the remote lower limb knee flexor (KF) muscle group. Twenty-seven young individuals were …
An Examination Of Acute Cross-Over Effects Following Unilateral Low Intensity Concentric And Eccentric Exercise, William Miller, Sunggun Jeon, Xin Ye
An Examination Of Acute Cross-Over Effects Following Unilateral Low Intensity Concentric And Eccentric Exercise, William Miller, Sunggun Jeon, Xin Ye
Faculty and Student Publications
We compared the effects of low intensity concentric (CON) and eccentric (ECC) exercise on the force and neural responses of the dominant (exercised) elbow flexors (EFs), and studied if these conditions could induce cross-over effects to the contralateral (non-exercised) EFs. Fifteen subjects (8 males) completed all conditions (CON and ECC: 6 sets of low intensity exercise to failure; control: rest) in separate visits with a randomized order. Maximal isometric force and electromyography (EMG) of the dominant and contralateral EFs were assessed at pre, immediate-, 24-, and 48-h-post. Two-factor (condition and time) linear mixed-model analyses were performed to examine the force …