Making exercise science useful.

Research, coaching and technology. Twenty years working with athletes.

The athlete behind the training.

Senior Exercise Physiologist · Health AIML

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I'm Leighton Wells: applied sport scientist, triathlon coach and physiology teacher. My doctoral research at Deakin examined how triathlon coaches prescribe, measure, monitor and manage training load. Its training-data study analysed 34,731 sessions recorded in TrainingPeaks by 95 age-group triathletes. About twenty years of coaching keeps that research tied to real athletes, alongside more than twenty years in technology and commercial leadership. Apple's focus on evaluating exercise guidance brings those experiences together. The work interests me because the quality of the evidence, the way advice is expressed and its suitability for the person all need careful attention.

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Dr Leighton Wells

Leighton Wells, near You Yangs, Lara, Australia
Leighton Wells, near You Yangs, Lara, Australia

Applied sport scientist, triathlon coach and physiology teacher.

Doctoral research at Deakin examined how triathlon coaches prescribe, measure, monitor and manage training load. Its training-data study analysed 34,731 sessions recorded in TrainingPeaks by 95 age-group triathletes. About twenty years of coaching, in Australia and internationally up to Ironman distance, keeps that research tied to real athletes. Before sport science became my main work, I spent more than twenty years in technology and commercial leadership, including product management at ADP.

Apple’s focus on evaluating exercise guidance brings research, coaching and technology together. The work interests me because the quality of the evidence, the way advice is expressed and its suitability for the person all need careful attention.

Standards and evaluation

Pivot Summit · Federal Mills, Geelong · 8 December 2017

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I founded and led Pivot Summit, a regional technology and innovation event, from 2015 to 2019. In 2017, it brought Apple co-founder Steve Wozniak to regional Australia for the first time. I paid half of his speaking fee and raised the capital for the rest. Across its run, Pivot secured more than one million dollars in sponsorship, including Deakin University's major sponsorship. The following October, Steve Wozniak wrote to me: "Maybe one event a year stands out for me and that year it was Geelong."

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Bringing Steve Wozniak to Geelong.

Steve Wozniak speaking at Pivot Summit in 2017.
Pivot Summit, 2017. Film: Fluid Branding. Watch the film
Leighton and Deb Wells with Steve Wozniak at Pivot Summit.
Leighton and Deb Wells with Steve Wozniak at Pivot Summit, Geelong, 2017.

I founded and led Pivot Summit, a regional technology and innovation event, from 2015 to 2019. In 2017 Pivot Summit brought Apple co-founder Steve Wozniak to regional Australia for the first time. I paid half of his speaking fee and raised the capital for the rest.

Across its run, Pivot secured more than $1 million in sponsorship, including Deakin University’s major sponsorship, negotiated with Vice-Chancellor Professor Jane den Hollander AO.

2017

Steve Wozniak in Geelong

Apple co-founder · Pivot Summit

$1 million+

Sponsorship

Across Pivot Summit’s run, 2015–2019.

I do up to 100 events a year. … Maybe one event a year stands out for me and that year it was Geelong.

Steve Wozniak, in an email to Leighton Wells, October 2018.
Geelong Advertiser clipping, September 2017, headed Apple pioneer in town: Wozniak headed to Geelong, naming Leighton Wells as Pivot founder.Apple pioneer in townView clipping
Shane Fowles · Geelong Advertiser · September 2017
Leighton jumping in front of the Pivot letters, March 2018.

A practice ‘launch’ of Pivot Summit 2019.

Teaching and scientific communication

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I teach physiology at Deakin University and Victoria University, ranked first and sixth in the world for sport science in the 2025 Shanghai Rankings. At Deakin, that covers physiology, coaching and sport technology across eight units, including Exercise Programming, which includes strength and conditioning for clinical populations. At Victoria University, I've carried unit-chair responsibilities, including moderation and student support. My teaching in three units has received one hundred per cent positive student ratings.

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Teaching physiology at two of the world’s leading sport science universities.

#1

Deakin University

I teach exercise physiology, coaching and sport technology across eight units.

#6

Victoria University

I carried unit-chair responsibility for SSC2000 Sport Coaching Systems and Technology and AHE3114 Sport Physiology, covering assessment, moderation, student support and grade release.

Sport science globally · Shanghai Rankings 2025

The student experience.

My teaching has received 100 per cent positive student ratings in six Deakin units, including HSE302 Exercise Programming, HSE208 Integrated Human Physiology and HBS109 Introduction to Anatomy and Physiology.

Exercise Programming covers strength and conditioning for older adults, postpartum women and people returning from injury.

You have a great presence in the classroom, and your ability to connect research with real world sporting scenarios made the learning experience that much more valuable.
AHE3114 student · Victoria University
Made content easy to understand in laboratory sessions
HBS109 student · Deakin University · 2026
Leighton is a magnificent resource, very knowledgeable and very well prepared for classes
HSE302 student · Deakin University · 2024
Leighton discussing applied sport science with coaches at the Queensland Academy of Sport.
AusTriathlon × TrainingPeaks · Queensland Academy of Sport · December 2024
Leighton undertaking a treadmill VO₂max test, connected to gas-analysis equipment.

Wearables and measurement

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As a Deakin Research Assistant in 2023, I worked on the energy-expenditure accuracy of GPS sport watches, including sub-maximal V-O-two testing of recreational runners on a clinical-grade treadmill. That laboratory work sits alongside day-to-day use of activity-based wearables as a coach, athlete and sport scientist. My 2023 paper examined how and why triathlon coaches use a suite of technologies in their practice.

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Exercise physiology in practice.

Leighton Wells undertaking a treadmill VO₂max test.

As a Deakin Research Assistant in 2023, I tested the energy-expenditure accuracy of GPS sport watches, including sub-maximal VO₂ testing of recreational runners on a clinical-grade treadmill with a MetaLyzer.

That laboratory work sits alongside day-to-day use of activity-based wearables as a coach, athlete and sport scientist. My 2023 paper examined how and why triathlon coaches use a suite of technologies in their practice.

Research on coaching and technology
34,731

Training sessions

Recorded in TrainingPeaks.

95

Age-group triathletes

Six months of training data.

The training-load study examined 34,731 sessions from 95 age-group triathletes over six months, using TrainingPeaks data. The study considered differences by sex, age, race-distance preference and training phase.

Doctoral research

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My doctorate combined a national survey, interviews, six months of athlete training data and a coach-education intervention. In that intervention, coach comments on the training platform increased more than fourfold, although no statistically significant differences in athlete perceptions or training adherence were detected. For Summit Triathlon Coaching, my advice directs the prescription for 24 training plans. AI generates a base, then my review cycles judge mostly whether the physiological stress is realistic for the athlete's level. They caught early drafts with little or no recovery, too many build weeks without a de-load, and tapers that cut too little volume.

Open audio

Training load and coaching practice.

My doctorate examined how triathlon coaches prescribe, measure, monitor and manage training load. The work combined a national survey, interviews, six months of athlete training data and a coach-education intervention.

AI-driven development

AI systems in practice.

Summit Triathlon Coaching’s 24 training plans (345 weeks, 2,704 sessions) start from an AI-generated base, and my advice directs the prescription. I read the model outputs directly and review the generated plans against physiological standards, drawing on my PhD in training load, years as an athlete and coach, and peer-reviewed evidence on periodisation, recovery and tapering. The first test is whether the training stress is realistic and safe for the athlete’s level.

Where a draft had too little recovery, too many build weeks without a lighter week, or a taper that cut too little volume, I corrected the plan. The plans are also groundwork for a study of AI-assisted training, now in scoping.

The latest AI models write my code, and I check it through adversarial review between models. Python runs through my AI development work, and I understand where it sits in the development chain, how it does its job and why it belongs there. Version control and testing run throughout, and shared code repositories on GitHub are familiar ground.

Thesis Figure 1 · p. 25

  1. Prescribe Load

    • Design the optimal prescription of load in a training program
    • Make careful choices about which load metrics to use
    • Include metrics that are also used in “2. Measure Load”
  2. Measure Load

    • Using measures of External Objective (EL) and or Internal Load Objective and Subjective (IL)
    • This might include “life load”
    • May also measure Internal Load Response (ILR) variables
  3. Monitor Load

    • Make comparisons between prescribed and actual load (adherence)
    • Identify changes in the relationship between EL and IL
    • Determine whether ILR values indicate sub-optimal load
  4. Manage Load

    • Based on interpretations that occur as a part of Load Monitoring, make decisions about adjustments to Prescribed Load
    • Include consideration of Life Load, the need for functional over-reaching and proximity to competition / the need to taper
An example of a Training Load Process encompassing the prescription, measurement, monitoring and management of Training Load (TL).Doctoral thesis, Deakin University, 2025.
01

Understanding what coaches do, and why.

The survey examined coaching practice against published recommendations. Interviews then explored the reasons behind coaches’ decisions. Coaches were often adapting to the demands of their athletes’ lives. The research identified opportunities to improve monitoring and communication while retaining coaches’ understanding of the individual athlete.

Thesis Figure 9 · p. 56

Even though RPE was regularly used to prescribe load, it was one of the least commonly used load measurement metrics (62%).

Prescribe Load

  1. RPE or session RPE (sRPE): 78%
  2. Time/Distance/Pace: 76%
  3. Physiological metrics (HR, lactate): 70%
  4. Qualitative Feedback: 63%

Measure Load

  1. Time/Distance/Pace: 81%
  2. Load or intensity (power/TSS/TRIMP): 73%
  3. Physiological metrics (HR and lactate): 67%
  4. RPE: 62%
  5. Comments in training diaries: 59%

RPE: Rating of Perceived Exertion · HR: heart rate · TSS: Training Stress Score · TRIMP: Training Impulse

The prevalence of load prescription and measurement metrics used by coaches. The percentages represent the proportion of coaches that use each metric. Participants could select multiple options.Study 1A, a national survey of triathlon coaches · Wells et al., 2025, International Journal of Sports Science & Coaching.

“You can be getting great data, and the athlete is falling into a hole, and you’re not picking it up because everything looks great, and the compliance is high and all those sorts of things.”

Coach 3 · Study 1B interviews · thesis p. 72 · Wells et al., 2026, International Sport Coaching Journal.
02

Working with the training record.

TrainingPeaks records from 95 age-group triathletes provided 34,731 sessions over six months. The study examined training load and intensity, with explicit data-cleaning rules and analysis by age, sex, race-distance preference and training phase.

Thesis p. 93 · Figure 13, p. 90

These phase-specific variations in the present study indicate that age-group triathletes appear to be following periodised training plans.

Relative to the General phase, measures of TL were 21% higher in the Specific phase, 14% lower in the Taper/Race/Post phase and 38% lower in the Off season phase.Athlete sex and age group did not have an effect on any TL variables.Study 2, a retrospective cohort of 95 age-group triathletes recorded in TrainingPeaks · Wells et al., 2026, Frontiers in Sports and Active Living.
03

Testing a change in practice.

A coaching-education study combined training records, communication activity, athlete surveys, coach ratings and interviews. Two coaches and 17 athletes took part across a six-week control period and six-week intervention. Coach comments on the training platform increased more than fourfold. No statistically significant differences in athlete perceptions or training adherence were detected during the six-week intervention.

Thesis pp. 103–105

Results indicated subjective improvements in overall TL practices.

  1. Self-rated TL practice · both coaches: 5 out of 10 before, 8 out of 10 after

  2. Communication effectiveness · Coach 1: 4 out of 10 before, 9 out of 10 after

  3. Communication effectiveness · Coach 2: 5 out of 10 before, 7 out of 10 after

  • Coach comments per week increased significantly for both coaches post-intervention (p < 0.001).
  • The number of athlete comments per week did not change significantly from pre- to post-intervention (p > 0.05).
Study 3, a coach-education intervention with two coaches and 17 athletes · thesis pp. 103–105.

Research

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The practical question running through my research was how coaching can account for both sport and the rest of an athlete's life. Four first-author peer-reviewed papers are published, with a fifth under second-round review. The thesis proposes an approach called Adaptive Contextualised Informed Practice: planned training, objective information, feedback and the capacity to respond when life changes. It has not been empirically validated. The thesis also proposes evaluating AI that brings subjective and objective information together to support coaching decisions.

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Training load and communication.

My Deakin doctorate examined training load, including its quantification in TrainingPeaks, and how triathlon coaches use information and communicate with athletes. The practical question running through the research was how coaching can account for both sport and the rest of an athlete’s life. The doctorate produced three first-author peer-reviewed papers, and my master’s research produced a fourth. A fifth paper is under second-round review.

Adaptive Contextualised Informed Practice is the proposed approach developed in the thesis: planned training, objective information, feedback and the capacity to respond when life changes. The approach has not been empirically validated. The thesis also proposes evaluating AI that brings subjective and objective information together to support coaching decisions.

Read the doctoral thesis

RUP

Reactive Underinformed Practice

Low training load and communication practice structure

Definition

Low training load structure. Minimal planning, minimal objective and subjective data utilisation. Reactive to life load.

ACIP

Adaptive Contextualised Informed Practice

Flexible training load and communication practices that effectively account for sport and non-sport load

Definition

Structured training load, planned with flexibility in mind. High objective data utilisation with an emphasis on subjective data (feedback and context) utilisation. Highly responsive to life load.

EBP

Evidence Based Practice

Highly structured training load and communication practices, rigidly planned

Definition

Highly structured training load is rigidly planned. Low flexibility, high objective and subjective data utilisation. Interpreted as rules to adhere to. Less responsive to life load.

RUP–ACIP–EBP Training Load and Communication Practices Spectrum · thesis Figure 20, p. 122
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Athlete · Coach

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Through Summit Triathlon Coaching, I work with athletes in Australia and internationally, up to Ironman distance. More than thirty years in the sport and seven Ironman finishes inform that work, alongside the science. That has regularly included athletes returning from injury or illness, where return to play carries a clinical overlay. During my doctorate, parenting, teaching, research and coaching left little room for Ironman preparation. I stepped back from racing and kept coaching. The competing demands I was studying were part of my own life.

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A life in sport.

Through Summit Triathlon Coaching, I work with athletes in Australia and internationally, across triathlon distances up to Ironman. More than thirty years in the sport and seven Ironman finishes inform that work, alongside the science. Athletes returning from injury or illness are regular clients, and return to play has a clinical side.

During my doctorate, parenting, teaching, research and coaching left little room for Ironman preparation. I stepped back from racing and kept coaching. The competing demands I was studying were part of my own life.

Activity-based wearables are central to my work as a coach, athlete and sport scientist. National coach education for AusTriathlon and TrainingPeaks has taken the research into discussion with development, performance and Olympic-level coaches. Teaching physiology at Deakin University and Victoria University is science translation too: making the explanation useful to the audience in front of me.

Product, technology and commercial leadership

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My career began as a technical writer at Varian, now part of Agilent, writing manuals and creating help videos for UV-Vis spectrophotometers. At Crux, my marketing consultancy, we created the OptimEye and ClearSky identities for Catapult. Through Digitalsmith, the digital agency I owned and led, I later worked on digital strategy, the website and acquisition-related due diligence. As Product Manager at ADP Employer Services, I was responsible for Payline, which had a twenty-three million dollar annual sales target.

Open audio

Commercial sports technology.

OptimEye S5 · identity development through Crux. Present-day product reconstruction from the retained artwork.

At Crux, my marketing consultancy, we created the OptimEye and ClearSky identities for Catapult, giving innovative sport technology a globally competitive, premium presentation. Through Digitalsmith, the digital agency I owned and led, I later worked on Catapult’s digital strategy, website and acquisition-related due diligence.

CruxDigitalsmith
Original orange, black and white OptimEye S5 identity options created through Crux.View detail
Original OptimEye S5 identity artwork · Crux

ADP Employer Services

As Product Manager at ADP Employer Services, I was responsible for Payline, which had a $23 million annual sales target.

Payline

Dexion

As Marketing Director at Dexion, part of GUD Holdings, I led the company’s marketing, delivering a new website, new photography of new and existing products, and new print brochures and binders for sales staff.

Runway

I co-founded Runway, a startup incubator and accelerator. Bringing business, research and technology people together has been a recurring part of my work.

My career began as a Technical Writer at Varian, now part of Agilent, writing manuals and creating help videos for UV-Vis spectrophotometers. Later, as Marketing Communications Manager at GBC Scientific Equipment, I managed the staff who produced manuals and help videos for a much wider range of scientific equipment. The Chicago Manual of Style guided my technical writing and marketing communications work.

Research and its application

Published work.

Excerpt of the published Frontiers article abstract.
Published article excerpt

Frontiers in Sports and Active Living · 2026

Training load and intensity in triathlon: objective differences between sex, age, race distance preference and training phase across a cohort of 95 age-group triathletes over six months

Read
Opening of the corresponding doctoral thesis chapter.
Doctoral thesis · chapter excerpt

International Sport Coaching Journal · 2026

An interpretive exploration of Australian triathlon coaching practices: working toward optimal training load practice within real-world contexts

Read

Apple Health AIML

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The opportunity to help define and evaluate Apple's exercise guidance is a strong fit for the work I want to do next. I would bring applied sport science, research, practical evaluation experience and an understanding of how technology reaches people. I'm based in Victoria, Australia, and open to relocating with my family for the right role. Thank you for listening.

Open audio

Let’s discuss the work.

The opportunity to help define and evaluate Apple’s exercise guidance is a strong fit for the work I want to do next. I would bring applied sport science, research, practical evaluation experience and an understanding of how technology reaches people.

Based in Victoria, Australia, I am open to relocating with my family for the right role.

leightonwells@gmail.com+61 418 519 906
Leighton Wells

Victoria, Australia Cupertino, California

via San Francisco

Illustrative flight profile

Scroll to follow the flight

Technologies and references.

Design

La.W draws on Bang & Olufsen’s visual language. Motion and navigation inspired by apple.com. Art direction and content: Leighton Wells.

Built with

  • Claude Opus 5.5
  • GPT 6 Astra
  • Higgsfield
  • Seedance 2.5*

*Opening film: actual shot of my bike. Lighting and colour grading were AI generated.

Narration: Google Gemini 3.8 Flash TTS (AI voice).

References

Apple’s Human Interface Guidelines and product pages are references for interaction, accessibility and motion. HealthKit guidance informs how health data is described and protected. Editorial references: Apple Style Guide; Chicago Manual of Style Q&A.

Scroll Squares

A little fun while you read. Scroll points measure page movement, not calories.

Setting a target saves today’s count in this browser only.

Leighton Wells, near You Yangs, Lara, Australia

Leighton Wells

Near the You Yangs

Lara, Australia

Open area in Apple Maps

Accessibility

Text size
Text size 100%

Available on the spoken Pivot Summit film. Other silent films need no sound to follow.

Motion

Motion follows your device settings.

Pivot Summit, 2017. Film: Fluid Branding.

Apple pioneer in town
Shane Fowles · Geelong Advertiser · September 2017
Open original image
Original training-load and communication spectrum: RUP, ACIP and EBP, in that order.
RUP–ACIP–EBP Training Load and Communication Practices Spectrum · thesis Figure 20, p. 122
Open original image
Original orange, black and white OptimEye S5 identity options created through Crux.
Original OptimEye S5 identity artwork · Crux
Open original image

Simulated flight · Level 1 · Cadet

Fly Leighton to Apple

Take the controls from Victoria to Cupertino. Stay on the route and keep a steady speed.

Choose a nickname and select Start. Don't use your real name or email address. Anyone using the same callsign shares its rank.

Score
0
Route
0 / 600
Speed
0 / 400
Time
0:00
Reserve fuel 100%

Speed now 100% target 80–120%

Victoria, Australia Cupertino, California

via San Francisco

Illustrative flight profile

Scroll to follow the flight

A simulated flight, just for fun.
v0.007 Beta Version

Simulated flight

How to fly

  1. Steer

    Hold and drag the plane to fly in any direction. Or use the arrow keys, two at once for a diagonal, and press + or - to change speed. Stay close to the line.

  2. Route points, up to 600

    Earned for each new stretch of the route you fly on the line. Skipped or repeated stretches earn nothing.

  3. Speed points, up to 400

    Earned while your speed stays between 80 and 120 per cent of the target. Speed now shows where you are. A good flight takes about 45 seconds.

  4. Reserve fuel

    Flying off course burns extra fuel. Each second outside the corridor uses 5 per cent of the reserve, which never refills. If it runs out, the flight ends.

  5. Callsign and rank

    Enter a nickname to keep your rank. Each finished flight earns one rank, from Cadet to General of the Air Force, even one that runs out of fuel.

  6. Pause, sound and settings

    Press Space to pause. Sound stays off until you turn it on, and every announcement and callout also appears as text. Settings offer high-contrast colours and reduced motion.

The flight, dials, ranks and announcements are simulated and illustrative. Take-off and landing sounds: Boeing 787 cabin recordings by evsecrets on Freesound, public domain (CC0).

Simulated flight

Settings

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Audio loads after Start. Sound stays off until you turn it on.

Settings last for this visit only and are not saved.