Research behind the course

Where this comes from

LongTermSports was written for club parents everywhere. The lessons synthesize published research on youth sport participation, athlete development and parenting, together with the standards national sport bodies already use: long-term athlete development frameworks, consensus statements on specialization and overuse, concussion return-to-play rules, and Safe Sport codes such as the Rule of Two.

Every statistic in the course is tied to a source below. If you find a claim you think is wrong or out of date, email hello@longtermsports.com and we will check it and correct it.

Last reviewed November 2026.

1

Why Kids Play (and Why They Quit)

  1. The Fun Integration Theory: toward sustaining children and adolescents sport participation
    Visek, Achrati, Mannix, McDonnell, Harris & DiPietro, Journal of Physical Activity and Health (George Washington University) · 2015

    The 'fun maps' study: 81 fun determinants named by young athletes, parents and coaches. Trying hard, positive team dynamics and positive coaching ranked highest; winning ranked 48th.

  2. Aspen Institute Project Play; National Alliance for Youth Sports

    Source of the widely cited estimate that about 70% of children stop playing organized sport by age 13, and that 'it wasn't fun anymore' is the leading reason given.

  3. 'I love to watch you play': what college athletes said their parents did that helped
    Bruce E. Brown and Rob Miller, Proactive Coaching

    Informal survey of college athletes over three decades; the six words athletes most often named as the thing their parents said that made them feel best.

  4. Canadian Youth Sports Report
    Solutions Research Group · 2014

    Participation and dropout patterns for Canadian children and teens.

2

The Long Game: How Athletes Actually Develop

  1. Sport for Life Society · 2019

    The stage framework used across Canadian sport: Active Start, FUNdamentals, Learn to Train, Train to Train, Train to Compete, Active for Life.

  2. Hockey success and birthdate: the relative age effect
    Barnsley, Thompson & Barnsley, Canadian Association for Health, Physical Education and Recreation Journal · 1985

    The original Canadian study showing junior and NHL rosters skew toward early-in-the-year birthdays.

  3. Annual age-grouping and athlete development: a meta-analytical review of relative age effects in sport
    Cobley, Baker, Wattie & McKenna, Sports Medicine · 2009

    Confirms the relative age effect across sports, ages and countries.

  4. AOSSM early sport specialization consensus statement
    LaPrade et al., Orthopaedic Journal of Sports Medicine · 2016

    Early single-sport specialization is linked to higher overuse injury, burnout and dropout; multi-sport participation is recommended through early adolescence.

  5. Sports-specialized intensive training and the risk of injury in young athletes
    Jayanthi, LaBella, Fischer, Pasulka & Dugas, American Journal of Sports Medicine · 2015

    Highly specialized young athletes had a higher risk of serious overuse injury.

  6. NCAA Research

    The small fraction of high school athletes who play varsity sport at university and the far smaller fraction who turn professional.

  7. Growth, maturation and the 'adolescent awkwardness' window
    Sport for Life, Developing Physical Literacy and Long-Term Development resources; Philippaerts et al., Journal of Sports Sciences · 2006

    Peak height velocity typically arrives around 12 for girls and 14 for boys, with a temporary dip in coordination.

3

Your Lane: Parents, Coaches and Athletes

  1. Coaching Association of Canada

    The standard Canadian coaches are trained to, including how coaches are expected to work with parents.

  2. Canadian Centre for Ethics in Sport

    Go For It, Play Fair, Respect Others, Keep It Fun, Stay Healthy, Include Everyone, Give Back: the values framework adopted by most Canadian sport organizations.

  3. Parenting in youth sport: a position paper on parenting expertise
    Harwood & Knight, Psychology of Sport and Exercise · 2015

    Defines what expert sport parenting looks like, including how parents manage their relationship with coaches.

  4. Codes of conduct for parents and spectators
    Ontario Basketball Association; Ontario Soccer; Hockey Canada

    Provincial expectations for parent conduct, complaint routes and the role of the club.

4

The Sideline: What Your Kid Sees and Hears

  1. Background anger in youth sport: a perfect storm?
    Omli & LaVoi, Journal of Sport Behavior · 2009

    How parent anger in the stands affects children, and why kids say they want parents to stay calm.

  2. Parental involvement in competitive youth sport settings
    Holt, Tamminen, Black, Sehn & Wall, Psychology of Sport and Exercise · 2008

    Observed and categorized parents' verbal behaviour at games, from supportive to controlling and derogatory.

  3. Junior tennis players' preferences for parental behaviors
    Knight, Boden & Holt, Journal of Applied Sport Psychology · 2010

    Young athletes want encouragement, calm, and no technical coaching from parents during competition.

  4. Official recruitment and retention surveys
    Hockey Canada; Ontario Soccer; Ontario Basketball Officials

    Abuse from spectators and parents is the most common reason youth sport officials give for quitting, driving referee shortages across Ontario.

5

The Car Ride Home

  1. The car ride home: an interpretive examination of parent–athlete sport conversations
    Tamminen, Poucher & Povilaitis, Sport, Exercise, and Performance Psychology (University of Toronto) · 2017

    Canadian study of post-game conversations and what athletes want from them.

  2. Parent involvement in junior Australian football: the car ride home
    Elliott & Drummond, Sport, Education and Society · 2017

    How post-game critique on the ride home affects children's enjoyment.

  3. 'I love to watch you play'
    Bruce E. Brown and Rob Miller, Proactive Coaching

    See Module 1.

  4. Parenting in youth sport: a position paper on parenting expertise
    Harwood & Knight · 2015

    See Module 3.

6

Pressure, Praise and Mindset

  1. Mindset: The New Psychology of Success
    Carol S. Dweck, Random House · 2006

    Growth versus fixed mindset.

  2. Praise for intelligence can undermine children's motivation and performance
    Mueller & Dweck, Journal of Personality and Social Psychology · 1998

    Praising effort and process rather than ability or results.

  3. Athlete burnout: review of the literature
    Gustafsson, DeFreese & Madigan, Current Opinion in Psychology · 2017

    Signs of burnout in young athletes and the role of pressure and lack of autonomy.

  4. Perfectionism in sport, dance and exercise
    Hill, Mallinson-Howard & Jowett, Sport, Exercise, and Performance Psychology · 2018

    How perfectionistic pressure from parents relates to anxiety and 'playing scared'.

7

Playing Time, Winning and Fairness

  1. The Developmental Model of Sport Participation
    Côté & Hancock, in Côté & Lidor (eds.), Conditions of Children's Talent Development in Sport · 2013

    Sampling years, specializing years and investment years; why deliberate play and broad participation matter before the teens.

  2. Sport for Life Society · 2019

    Recommended training-to-competition ratios by stage, and why meaningful competition is structured differently for children than for teens.

  3. Canada Basketball and Ontario Basketball

    Age-appropriate expectations for playing time, roles and competition in Ontario basketball.

  4. Parenting in youth sport: a position paper on parenting expertise
    Harwood & Knight · 2015

    See Module 3, including how expert parents handle selection and playing-time disappointment.

8

Safety, Wellbeing and the Parent Pledge

  1. Government of Ontario

    Removal from sport, no same-day return, and medical clearance before return to play.

  2. Parachute Canada · 2017

    Recognition, management and return-to-sport steps.

  3. Overuse injuries and burnout in youth sports: a position statement
    DiFiori et al., American Medical Society for Sports Medicine, Clinical Journal of Sport Medicine · 2014

    At least one to two days off per week and two to three months away from a single sport per year; warning signs of overuse.

  4. Canadian Society for Exercise Physiology

    9 to 11 hours of sleep for ages 5 to 13 and 8 to 10 hours for ages 14 to 17.

  5. Sports drinks and energy drinks for children and adolescents
    Canadian Paediatric Society; American Academy of Pediatrics

    Water for routine activity; sports drinks only for prolonged vigorous exercise; energy drinks are not appropriate for children or teens.

  6. Coaching Association of Canada

    Two screened, NCCP-trained adults present with an athlete, especially in closed spaces.

  7. Canadian Centre for Ethics in Sport; Sport Canada · 2019

    Defines maltreatment in sport and sets reporting expectations for every funded sport organization.

  8. Safe Sport resources for parents
    Ontario Basketball; Coaching Association of Canada

    How and where to report a concern: club safe sport officer, provincial sport organization, and police when a child may be in danger.

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