L9 - LOAD & LOADABILITY Flashcards
What is the definition of ‘Load’?
Mental, physiological or mechanical stress required to stimulate adaptation as response
How is ‘LOAD’ calculated?
LOAD = TIME x EFFORT = min x RPE
What is the difference between local tissue capacity and sport-specific capacity?
Improving sport-specific capacity increases performance, while improving local tissue capacity increases the ability of the structure to tolerate load
What happens to local tissue capacity following an acute injury?
Immediate decrease due to tissue damage, pain & psychosocial factors
Is pain alone sufficient to determine progression of loading post-injury?
No, factors such as tissue vulnerability, movement pattern, re-injury risk, psychosocial resilience, temporal stage of tissue healing & inflammatory response must be considered
What is the role of the vastus medialis in knee stability?
It is the main stabilizer of the knee
What is the relationship between load capacity and health?
When load capacity increases, load can be increased, leading to improved health, reduced risk of injury, and improved performance
What can negatively impact health in relation to load?
Load can have negative effects on health, potentially leading to injury
What types of factors should be monitored in relation to context and environmental influences?
Subjective outcome measures, psychosocial measures (coping, stress), diet, sleep
What does RPE stand for?
Rating of Perceived Exertion
What is the effect of unloading on tissues?
De-tensioning results in downregulation of mRNA for tenomodulin & collagen, leading to disorganization of alignment of fibrils
What is the impact of 2-3 weeks of immobilization on collagen synthesis?
89% reduction in collagen synthesis rate
How does unloading affect tendon stiffness?
1-2 weeks reduces stiffness of tendon, which is necessary for movement transfer from tendon to bone
What occurs more quickly, de-conditioning or re-conditioning?
De-conditioning occurs more quickly than re-conditioning
What does the Physical Stress Theory state?
There is a predictable response to loading in tissues which can be used by physiotherapists to increase stress (load)