Lect19+Sport - Fitness Types of Muscles fast twitch, slow...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Fitness Types of Muscles – fast twitch, slow twitch Fuel for Exercise – Anaerobic, aerobic Nutrition for Athletes – Before, during, after event Flexibility Muscle strength & endurance Cardio-respiratory endurance Type 1 (Slow twitch) – Resistant to fatigue – Increased mitochondria & capillaries give red color – Aerobic Type II (Fast Twitch) – Anaerobic – High glycogen content, preferentially use glucose as fuel
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Small amount ATP in muscle tissue Creatine phosphate provides energy reservoir to replenish ATP Primary energy source for high-intensity, short duration activities (<30 seconds) Glucose 1. Anaerobically: Glucose ! 2 Lactate + 2 ATP Intense physical activity 2. Aerobically: Glucose + O 2 ! CO 2 + 36-38 ATP Provides energy for 2 min ! 3 hours
Background image of page 2
3 Fat Major source of stored energy Male 70 kg, 7% body fat = 44,100 kcal as fat Trained muscles: more mitochondria to use fat as fuel Produce 129 ATP per 16 C fatty acid chain % contribution of Energy Sources for activity Glycogen/Glucose – 100 g liver – 300+ g muscle – 2-3 hours strenuous activity
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 6

Lect19+Sport - Fitness Types of Muscles fast twitch, slow...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online