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Technologys role in reaching and maintaining healthy life styles


Twisk J Tracking of blood cholesterol over a 15 year peiod and its relation to ... Walking, going up and down stairs and rising from chair requires relatively ... – PowerPoint PPT presentation

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Title: Technologys role in reaching and maintaining healthy life styles

Technologys role in reaching and maintaining
healthy life styles
  • Remarks for the meeting of the Dutch Ministry of
    Health, Welfare and Sport, November,13,2007
  • Technische Universiteit Eindhoven
  • James L. Fozard, Ph.D.
  • University of South Florida
  • Tampa, FL 33618 USA

My second interaction with the Dutch Ministry of
Health, Welfare and Sport
  • In 1996, A symposium, Problems and solutions in
    longitudinal research was held in honor of the
    20th anniversary of the Amsterdam Growth and
    Health Longitudinal Study
  • Opening address by Secy Erica Terpstra
  • I served as one of the two peer reviewers for the
    13 invited papers published in the International
    Journal of Sports Medicine, July 1997, 18, Suppl
    3, S139-S254

Importance of Healthy lifestyle begins early in
  • Lessons from many longitudinal studies of growing
    childrenespecially teenagersshow a strong
    relationship between healthy lifestyles with
    respect to cardiovascular risk factors observed
    in young adulthood
  • Two examples follow
  • The Bogalusa Heart Study
  • The Amsterdam Growth Study

Cardiovascular risk factors in childhood carry
over to adulthood
  • Blood pressure and other cardiovascular risk
    factors were measured in 1500 boys and girls
    ranging age from 5-14 years and again 15 years
    later. Over 18 of the adults who were in the
    highest quintile of blood pressure as children
    developed essential hypertension as opposed to 5
    in the lower quintiles
  • Bao W, Threefoot SR, Strinivasen SR, Berenson GS.
    Essential hypertension predicted by tracking of
    elevated blood pressure from childhood to
    adulthood The Bogalusa Heart Study. Amer J
    Hypertension 1995, 8(7), 1-8
  • Twisk J Tracking of blood cholesterol over a 15
    year peiod and its relation to other risk factors
    for coronary heart disease. Den Haag, NL
    CIP-Data Koninklijk Bibliotheek, 1995

Activity(Weighted Mets) and VO2 max in childhood
and young adulthood
Age in Years
Data from Fig. 12Kemper HCG,The Amsterdam Growth
and Health Longitudinal Study Int. J Sports Med.
1997, 18 S140-S150.
Normal FEV1 changes in adulthood
  • A longitudinal study of normal changes in VO2 Max
    showed that the decline in VO2 max follows a
    constant percentile. If you were in the 80th
    percentile of your height group at age 50, you
    would be in the 80th percentile when you were 70
    even though the VO2 value would be be lower at
    age 70
  • Pearson JD, Kao SY, Brant LJ, Metter EJ, Fozard
    JL. Longitudinal changes in forced expiratory
    volume in healthy, nonsmoking men and women The
    Baltimore Longitudinal Study of Aging. Am J Human
    Biol., 1998,10,471-481.

Rapid change in FEV1 in adulthood is an
independent risk factor for cardiac death
  • The rate of change in FEV1 over many biannual
    observations was estimated for each of over 800
    male participants in the Baltimore Longitudinal
    Study of Aging who were free of pulmonary and
    cardiovascular disease at time of first
  • The rates of change were used in a risk factor
  • The major result was that the odds ratios for
    cardiac death increased with higher rates of
    decline in both smokers and nonsmokers
  • Tockman MS, Pearson JD, Metter EJ, Kao SY Rampal
    KG, Cruise LF, Fozard JL. Rapid decline in FEV1
    A new risk factor for coronary heart disease
    mortality. J Resp. Critical Care Med.,

Extended Health requires us to change how we
think about aging
  • Negative stereotypes about old age and aging are
    detrimental to the well being and personal
    fulfillment of young and old alike
  • Agism is apparent in many jokes
  • Pervasive negative stereotypes about aging
  • Poor parental training about aging to the young
  • Poor appreciation of individual differences

Lets change our way of thinking about aging
  • Pervasive negative stereotypes about aging
  • If I knew I was going to live this long, I would
    have taken better care of myself
  • One senior to another When does old age begin?
    Answer Later
  • Young adults most serious life decision?
  • Answer When to begin middle age

Lets change our way of thinking about aging
  • Poor parental training of the young about aging
  • Dennis the Menace to his fathers friend What
    age are you in the middle of?
  • Child to grandmother If Im only young once,
    how many times do I have to be old?

Lets change our way of thinking about aging
  • Poor appreciation of individual differences
  • Old man answers question about his age What age
    do you mean--My anatomical, physiological,
    psychological, or chronological?
  • This gentleman is both smart and wise, smart
    because of the critical distinctions and wise
    because chronological age is at the end of the
  • When asked what his doctor thought about his
    lifestyle choices at age 100, George Burns
    replied, I dont know, my doctors dead.

Technology can help education and training
activities related to aging
  • Simulations can help educate people for aging in
    various situations (BJ Fogg)
  • Cause and effect simulations (social skills)
  • Environmental simulations (treat phobias)
  • Object simulations (drunk driver)
  • Simulations of aging for young people can reduce
    negative attitudes toward aging

Virtual simulations of aging and healthy
  • Since the 1970s, many simulations of age related
    sensory and mobility limitations have been
    devised to educate the young
  • Clouded lenses, ear plugs, gloves, weighted shoes
  • Limitation is lack of linkage of these devices
    and preventive and compensatory interventions
  • Virtual reality simulations can improve education
    by linking simulations of limitations to effects
    of compensatory and preventive measures

Old Adults perform ADLs closer to max strength
than young adults
  • Hortobagyi T, Mizelle C, Beam S, DaVita P. J.
    GerontologyMedical Sciences, 2003, 58A,453-460.

  • Walking, going up and down stairs and rising from
    chair requires relatively higher percentage of
    maximum reserve capacity in older than younger
    adults--True for cardiovascular and muscle
  • Study measured relative effort to perform these
    tasks by assessing maximal leg strength on a
    machine and by the force used when going up or
    down stairs or standing up from a chair. Force
    was measured by special recording plate embedded
    in the floor or steps
  • Participants were healthy women in two age groups
    mean ages 22 and 74 years.

Relative effort () of maximum strength required
to perform ADLs
Long-Term Consequences of Age Differences in
  • Midlife strength predicts functioning 25 years
  • Grip strength measured at age 45 to 68 in
    Japanese-American men. 25 years later speed of
    walking, ability to stand up from chair, and
    self-reports of difficulty lifting 10 lbs, doing
    housework, etc were measured.
  • Rantanen T, Guralnik JM, Masaki K et al Midlife
    hand grip strength as a predictor of old age
    disability JAMA 1999281558-560

with Limitations in Strength Groups Measured 25
Yrs Ago
Data from Rantanen et al, JAMA 1999281559
Effects of strength training on mobilitybasic
  • Strength training and physical activity improve
    muscle mass, control of movement, and balance
  • Fiaterone MA, Marks EC, Ryan ND et al.
    High-intensity strength training in
    nonogerniansEffects of skeletal muscle. J Am Med
    Ass, 19902633029.
  • Ivey FM, Tracy BL, Lemmer JT, NessAiver M, SM,
    Metter EJ, Fozard JL, Hurley BH. The effects of
    strength training and detraining on muscle
    quality Age and gender comparisons J
    GerontolBiol Sci 200055AB152-B157.
  • Miller ME, Rejeski WJ, Reboussin BA, Ten Have TR,
    Ettinger WH Physical activity, funtional
    limitations and disability in older adults J Am
    Ger Soc 2000481264-1272.
  • Since 2000, dozens of well designed studies
    extend these early studies e.g., J. Gerontology
    Med Sci 200762A(June)2007 62A(Aug)

Young Men Young Women Older Men
Muscle Quality(MQ) is strength/volume. Strength
training of right leg occurred over 9 months
detraining over 31 weeks. From Ivey et al 2000
Strength and Gait Speed
  • Leg exension strength and leg power correlate
    with gait speed. The distributions of leg power
    associated with different speeds may provide the
    basis for setting goals for strength needed for
  • Rantanen T, Avela J Leg extension power and
    walking speed in very old people living
    independently. J Gerontol Med Sci
  • Correlations between power and speed ranged from
    .4 to.7 in old people
  • Kwon I, Oldaker S, Schrager MA, Talbot LA, Fozard
    JL, Metter EJ. Relationship between muscle
    strength and self-paced gait speed Age and sex
    effects. J Gerontol Biol Sci 200156BB398-B404

Cumulative distributions of leg power for 5
groups of walking speed from lt1m/s togt2m/s Data
from Rantanen andAvela 1997
Leg power is expressed as Watts/kg
Note that the cumulative of leg power at 1m/s
ranged from 1-3 W/kg The cumulative of leg
power at 2m/s ranged from 8-15.5 W/kg
Technology and setting goals for strength
  • Prevention requires that we set standards for
    reserve strength needed for adequate functioning
    at a later age
  • Early estimates--we need 40 of our strength at
    age 25 to function well at age70
  • Wearable transducers provide information on
    quality and required number of maneuvers
  • New technology development at University of Pisa
    by Dr. E. Piaggio allows for Kinesthetic sensing
    by use of smart fabrics in gloves, socks and
  • http//

Networking improves coaching in strength training
  • Motivation is major issue for utilizing strength
    trainingmachines can have motivational
  • Networking can improve motivation and quality of
    feedback from strength training
  • Reinforcement from sharing information by peers
    doing similar workouts

Technology and motivation Computerized coaching
  • FitLinxx is a computerized system that attaches
    directly to existing fitness equipment
  • FitLinxx learns users' programs, coaches them
    individually through their workout for better
    form, safety and confidence during every
    exercise, and tracks their progress over time.
  • On strength equipment, FitLinxx appears as an
    easy-to-read touch-screen display that's attached
    to the machine. For cardiovascular equipment,
    each machine's existing console is simply
    networked to FitLinxx
  • Users simply tap in their PIN to display their
    targets - FitLinxx then coaches them on speed,
    form, heart rate, etc., and tracks the workout
    session - every rep, set and step.
  • http//