New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here

physci 5 Diet and Nutrition Week 3 Notes

by: Isabel Yin

physci 5 Diet and Nutrition Week 3 Notes Physiological Science 5

Isabel Yin

Preview These Notes for FREE

Get a free preview of these Notes, just enter your email below.

Unlock Preview
Unlock Preview

Preview these materials now for free

Why put in your email? Get access to more of this material and other relevant free materials for your school

View Preview

About this Document

week 3 lecture notes covering exercise and muscles!
Diet and Nutrition
Dr. Esdin
Class Notes
Physiological Science
25 ?




Popular in Diet and Nutrition

Popular in Physiology

This 4 page Class Notes was uploaded by Isabel Yin on Saturday January 23, 2016. The Class Notes belongs to Physiological Science 5 at University of California - Los Angeles taught by Dr. Esdin in Winter 2016. Since its upload, it has received 56 views. For similar materials see Diet and Nutrition in Physiology at University of California - Los Angeles.

Similar to Physiological Science 5 at UCLA

Popular in Physiology


Reviews for physci 5 Diet and Nutrition Week 3 Notes


Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 01/23/16
Physiological Science 5 Week 3 Lecture Notes Aerobic training’s benefits are completely different than that of resistance training, it affects the cardiovascular system and respiratory system VO2Max is the maximum capacity our body has to transport and utilize oxygen during exercise, how much oxygen can we deliver in the exercise When we breathe through our nose then to lungs, we need oxygen in muscles during exercise, therefore oxygen needs to be transported to our muscles. The more oxygen we can deliver, the more we can exercise: KEY OF ENERGY PRODUCTION The more fit we are = high VO2Max, we can stay on treadmill for a long time As the intensity of exercises increases, so does energy usage, at low intensity exercise, fat is primarily used, but as we increase the intensity, carbohydrates usage increases In order to use muscles, we make ATP in our cells for energy 1. nutrients 2. oxygen Adaptation of Heart Increase of Cardio output = heart rate x strobe volume Liters/min (how much blood you eject) = beats/ min x Liters/ beat Heartrate : beats/ min HR rest = 70 – 100 BPM HR max = amount of beats/min, the max a heart can beat (formula 220 – your age) As the intensity of exercise increases, the cardiac output increases A very good workout would increase your heart rate to 180 BPM Trained person experimental same age group vs. sedentary (untrained same age group) Trained: HRmax would be the same, but 1. reaching HR max takes longer time 2. HR at rest: a lot lower (heart works a lot less) Sedentary: HRmax is the same with trained since they have the same age 1. but takes shorter time to reach HRmax 2. HR at rest is also much higher than trained e.g. 70 During aerobic exercise, we see changes in blood vessel diameter since bigger vessels = more blood transportation Decrease of liver/ blood delivery as muscles need them Respiratory system changes dilation of airways, delivery of oxygen Resistance training is less dependent on O2 Aerobic training depends a lot on O2 Muscles Physiology of muscles Apply to the importance of exercise Skeletal muscles - voluntary Smooth muscles – muscles found around organs, involuntary – consciously no control over the muscles Cardiac muscles – heart, involuntary Around organs – blood vessels (increasing/decreasing the width of the blood vessels) Heart diseases later on Main focus: skeletal muscles Round 700 muscles that make up our body Biceps is a 1 muscle organ: made of many muscle cells Muscle organ isn’t = muscle cells 1 muscle cell = the smallest unit of life a cell can respond to the environment Cell = self-sufficient, because they have metabolism Given energy source 2 features of muscle cell: • contractility – (to produce force) the amount of force it produce is proportional to what it is working against It is going to make a huge difference • excitability – they respond to electrical activity contractility – one muscle cell what makes a cell function? Organelles (tiny rooms in an apartment) each has its own function Mitochondria – the stove in the kitchen ATP = energy molecule To survive muscle needs energy, more mitochondria we need energy Proteins grouped together in a structure called myofibril There are a lot of these myofibril Each segments called sarcomere (functional uritin a muscle) Muscle organ -> muscle cell -> myofibril -> sarcomere Looks like alternating structures, alternating bands of thin and thick proteins Major in thin proteins is called actin Thick filament = myosin When actin and myosin physically bind to each other when they bind, two things happen 1. muscle shorten (contraction) 2. force is produced the more actin or myosin I have, the more force I am going to produce resistance training increases protein synthesis more actin and myosin means more force production more activity – hypertrophy less activity – atrophy more mitochondria – aerobic more proteins – anaerobic more storage capacity I = only thin filamments H = only thick filaments A – both


Buy Material

Are you sure you want to buy this material for

25 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Jim McGreen Ohio University

"Knowing I can count on the Elite Notetaker in my class allows me to focus on what the professor is saying instead of just scribbling notes the whole time and falling behind."

Amaris Trozzo George Washington University

"I made $350 in just two days after posting my first study guide."

Steve Martinelli UC Los Angeles

"There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."

Parker Thompson 500 Startups

"It's a great way for students to improve their educational experience and it seemed like a product that everybody wants, so all the people participating are winning."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.