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Full-Text Articles in Musculoskeletal System
Pain Assessment And Possible Mechanism Of Delayed Onset Muscle Soreness, Wing Yin Lau
Pain Assessment And Possible Mechanism Of Delayed Onset Muscle Soreness, Wing Yin Lau
Theses: Doctorates and Masters
Muscle pain is felt during exercise or daily activities for several days after performing unaccustomed exercise, which is referred to as delayed onset muscle soreness (DOMS). Many people experience DOMS, but its underlying mechanisms are not fully understood. One of the challenges in the investigation of DOMS is its subjective nature, which makes the assessment ambiguous, thus establishing a standardised protocol is necessary. The present thesis scrutinised muscle pain assessments (Study 1, Study 2), developed a new assessment of muscle pain focusing on muscle fascia (Study 3), and investigated why DOMS is reduced after the second than the first bout …
Neuromuscular Factors Affecting Stretch-Induced Torque Loss, Gabriel Siqueira Trajano
Neuromuscular Factors Affecting Stretch-Induced Torque Loss, Gabriel Siqueira Trajano
Theses: Doctorates and Masters
The mechanisms underpinning the immediate torque loss induced by acute, static muscle stretching are still not clear. The current research was designed to examine the neuromuscular factors influencing this torque loss. In Study 1, the contributions of central versus peripheral factors to the stretch-induced torque loss were investigated. Measures of central drive, including the EMG amplitude normalised to the muscle compound action potential amplitude (EMG:M), percent voluntary activation (%VA) and first volitional wave amplitude (V:M), and measures of peripheral function, including the twitch peak torque and 20:80 Hz tetanic torque ratio were made before, and immediately and 15 min after …