KINE 1020 Lecture Notes - Motor Neuron Disease, Upper Motor Neuron, Lower Motor Neuron

• School: York University
• Department: Kinesiology & Health Science
• Course: KINE 1020
• Professor: all

Document Summary

Endurance type 1 muscle fibre higher %, low type 2 % Power type 2 muscle fibre higher %, low type 1 % Best to have range of fibres, but affects type of sport you do. Fibre type proportion related to type of activity (endurance/power) Winning not predicted by muscle fibres (can be small range difference) 80% outperform 85% Maintaining or improving muscular strength later in life reduces the percentage of functional limitations over 50% for both men/woman. Muscle strength across the lifespan (static, dynamic, pull strength and muscular endurance) Paediatric years childhood to young adult. ** if you train as young adult, relatively maintain strength through old age** (does decrease) Sarcopenia: loss of muscle mass and strength due to aging. 1-2% muscle mass per year past 50 yrs of age loss of strength varies/ may be greater. Impacts 10-25% of the population under age 70 and 40% above age 80.