8338 Lecture Notes - Lecture 10: Weight Training, Confounding, Stroke Volume

• School: University of Canberra
• Department: University of Canberra
• Course: 8338
• Professor: Professor

Document Summary

Fitness components: cardiovascular endurance - kids are 15% less fit than their parents, muscular strength and endurance, flexibility, body composition. Linear relationship between physical work and hr increases in workload increase. Hr: higher hrs to compensate for their smaller stroke volume, sv is lower in children - limited by size and contractile force of heart, vascular resistance to blood flow and competency of venus return. Intensity = 60%-80% hr max: time = 25-30 min, results trained or natural - easier to see improvement in sedimentary children. Tv viewing: long term effects: tv viewing has been linked to obesity, poor physical fitness, lipid abnormalities and smoking. Increased tv between 5 and 15 years higher bmi, lower vo2max, higher cholesterol, and increased cigarette smoking at 26: children and adolescents who watch 1 hour or less a day were the healthiest. Muscular strength: minimal muscular strength is important for human movement, earthbound - someone who cant move their body through space.