i. announcements this thursday topic + thematic poster ... · hand grip for the curl exercise. that...
TRANSCRIPT
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I. Announcements This Thursday topic + thematic poster outline due. Send .doc/.docx file by wayof e-mail attachment to: [email protected] Q?
II. Review of Anatomy Lab 2 Treasure HuntIII. Exercise Physiology & Nutrition in the News
30 lb 30 d? Magic? Lose 179 lb in 32 wk?Is this possible? Fasting? What is considered reasonable weight loss? ACSM
IV. The FROM Principle?V. Why Combine/Alternate Push with Pull?
Neuromuscular connections, super-setting, time & relaxation advantages
VI. Q? + Open Discussion
…Personal topic + outline due next session!BI 199 APWT Discussion 6
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Identify & list muscles that are worked specifically by the straight & bent-knee calf raise.Which muscles are stressed most by which unique form of the calf raise?
Anatomy Lab Treasure Hunt II. Question 1
A. Knee straightGastrocnemiusstretched & engaged!
Knee
B. Knee bentGastrocnemius slack, soleusengaged
Knee
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Identify muscles that are worked by trunk twisting motions?If the trunk is twisted counter-clockwise, which muscles are activated?
Anatomy Lab Treasure Hunt II. Question 2
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Anatomy Lab Treasure Hunt II. Question 3
From the supine position, if the trunk is moved in a linear fashion (without twisting) toward the lower extremities (hip flexion), which musclesare activated? Identify these muscles at your station.
How does keeping the knees bent at a constant angle influence the muscles activated?
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Trunk flexion activates rectus abdominis muscles
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Iliopsoas with Knees Straight vs. Bent?
Knees Straight
Taut & tugs on lower back!
Knees Bent
Collapsed & relieves stress!
Hip Flexors?Feet Anchored vs. Unanchored?
Iliopsoas, rectus femoris, sartoriusUnanchored
1100
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↓ Lower back stress by flexing hips & bending knees
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Contract abdominals, bend knees, widen stance to reduce back stress!
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Anatomy Lab Treasure Hunt II. Question 4
Identify and list subsections of arm musclesworked by the triceps extension.
Identify on each other by way of superficial anatomy (but be careful not to touch with gloves!) and on the cadaver.
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Push - Pull
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Triceps Extension
1. Isolate axis of rotation.2. Pin elbows to anterior
abdominal side.
3. Fully extend elbows.
4. Flex elbows just beyond ll.
5. Pause & extend.
NB: Bend knees, contract abdominals! Adjust hands & wrists to maximize range of motion (ROM).
Pin elbows to anterior abdominals
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Find the “hitch-hiker” muscle on your own body and on the cadaver you’ve identified.
Demonstrate to a partner in your group, the hand grip for the curl exercise that is optimal for activating this muscle.
Name and illustrate this grip by drawing a simple sketch.
Identify the long and short heads of the biceps brachii and locate the brachialis, the prime flexor of the forearm at the elbow.
Which specific hand grips isolate each of these muscles?
Anatomy Lab Treasure Hunt II. Question 5
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Brachialis: Prime Flexor of Forearm @ Elbow Brachioradialis: Hitchhiker Muscle!
Pulling or Flexionof Forearm @
Elbow
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Common grips used in weight training
Pronated /Overhand
Supinated /Underhand
Alternate /Spotting
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Mid- or hammer-bar grip activates brachioradialis, but why?
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Biceps Curl
NB: Knees bent & abdominals contracted!
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Physiology & Nutrition in the News!
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Lose 30 lb in 30 days, Magic?
What about science?
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32-wk Transformation?!! 401 lb to 222 lb!179 lb in 224 d ≡ 0.8 lb/d ≡ 5.6 lb/wk ≡ 22.4 lb/mo
Good morning = forward bend
NB: Low back? Knees bent…
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Bruce Randall 1959 NABBA Mr. Universe
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I'm not sure I believe you! Why can't I just starve to
lose weight?
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TOTAL FAST =No Energy Nutrients
(No Carbohydrates, Fats or Proteins)
ONLY
1.Water2.Vitamins3.Minerals
ML Pollock & JH Wilmore, 1990.
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60-day Fast???
Lost 60 lb!! Wow!!
Yet26 lb Water20 lb Lean Body Mass14 lb Fat
Fat < ¼ total wt loss!
76.7%
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You can lose weight by starving – but it's mostly
water & muscle! Also, there can be complications!
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Potential Complications of Total FastingNausea, diarrhea, persistent vomiting,
postural hypotension, nutritional deficiencies, menstrual irregularities,
and…sudden death.
General loss of appetite within first 2 days, maintained
throughout fasting period.ML Pollock & JH Wilmore, 1990.
Positive Aspect??
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NB: Each group 500 kcal deficit/day, 16 weeks
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Compared to dieting, exercise is superior in inducing % body fat
reduction & preserving lean body mass!
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Lose no more than 2.2 lb or 1 kg/wk!
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6001400
FROM Principle
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Agonistic - Antagonistic?Push - Pull
Prime Move(r) - Resist(er)Promotes - Opposes
WT Exercise eg?Bench press? - Bent-over rowBiceps curl? - Triceps extension
Leg extension? - Leg curl
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Within Same Workout – Superset to Save Time!
NB: Antagonistic relaxes while agonistic works.
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NB: Some bodybuilding routines push-pull over separate days.
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NB: Always complement Push with Pull to ensure balance!!!
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Discussion
+ Q?