BONES PART 5

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DR. T

• BONES PART 5
• Jim, Tyler and Matt

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Overview

• Affects levels of bones
• Bones effects exercise
• Current Issues/ Hot Topics

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Affects levels of bones

• Exercise stimulates bone formation by putting
  stress on the bone
• Bone cells migrate to the area under stress and
  secrete protein, mainly collagen, that eventually
  mineralize and become solid bone

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Affects levels of bones

• Minimal essential strain is the threshold level
  that stress on the bone must exceed in order to
  stimulate bone growth.
• The threshold level is determined by the amount
  of activity a person does daily, and of a person
  exceeds that level, new bone is formed in that
  area

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Two types of exercises

• Weight bearing can be classified as either high
  impact or low-impact.
• Muscular Strength Activities put stress on the
  bone at the insertion points of the muscle being
  trained

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Exercises

• High Impact

• Low Impact

• Dancing
• Doing high- impact aerobics
• Hiking
• Jogging/running
• Stair climbing
• Tennis

• Using elliptical training machines
• Doing low-impact aerobics
• Using stair-step machines
• Fast walking on a treadmill or outside

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Also known as Resistance Training

• Lifting weights
• Using elastic exercise bands
• Using weight machines
• Lifting your own body weight
• Functional movements, such as standing and rising
  up on your toes

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Bones effect exercise

• If bone density is not at a normal level, it
  increases the risks of physical activity and
  exercise due to the high occurrence of falls and
  fractures
• Although people with osteoporosis may believe
  that exercise will ultimately lead to injury,
  this not necessarily the case.
• A structured program in safe environment can help
  reduce fall and fracture risks

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Non- Impact Exercises

• Balance exercises
• Posture exercises
• Functional exercises

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Low bone densities

• Fracture risk
• Muscle strength
• Range of motion
• Level of physical activity
• Fitness
• Gait
• Balance

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Current Issues/ Hot Topic

• By 2025 3 million fractures,
• 1.5 million fractures ( broken bones) in the U.S.
  every year
• Currently 19 billion
• Cost 25.3 billion per year
• 10 million Americans
• 34 million are at risk

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Current Issues/ Hot Topic

• About ½ of women over 50 break a bone
• About ¼ of men over 50 break a bone
• Silent condition dont realize have bone
  disease

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A new development

• With the Advent of Agriculture, Human Bones
  Dramatically Weakened
• Agriculture and technology
• Root cause of bone degradation over the past
  1,000 years
• Old hunter-gatherers
• Old farmers
• Hominids bones

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Current Issues/ Hot Topic

• Bone is the most transplanted body part
• Millions costing billions every year
• Growing own bone
• 3d printer, fat , cow bone, incubator
• So far tested in pigs
• 8 years
• Watch video You can grow a human body from fat?
  CNN Video

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Questions