FSHP Academy
Personal Training (ACE-aligned) — all lessons

Introduction

Role and scope of practice for personal trainersIntegrated fitness training models (ACE IFT framework)

A Client-Centred Approach

Basics of behaviour changeEffective communication, goal setting and teaching techniquesPreparticipation health screeningNutrition for health and fitness

Assessments, Programming and Progressions

Resting assessments and anthropometric measurementsCardiorespiratory training: physiology, assessments and programmingMuscular training: foundations and benefitsMuscular training: assessmentsIntegrated exercise programming: from evidence to practice

Programme Modifications for Special Considerations

Considerations for clients with obesityConsiderations for clients with chronic diseaseExercise considerations across the lifespanConsiderations for clients with musculoskeletal issues

Professional Responsibilities

Legal guidelines and business considerations

Basics of behaviour change

Why people struggle to change exercise and eating habits, and the evidence-based models — COM-B, stages of change, self-efficacy and self-determination — that help trainers support lasting change.

Beginner Evidence: Strong evidence 3 min read Reviewed 2026-10-31 Status: draft

Learning objectives

  • Explain why knowledge alone rarely changes behaviour
  • Use COM-B to diagnose barriers
  • Apply stages of change, self-efficacy and self-determination concepts
  • Select practical behaviour-change techniques for clients

Why this matters

Most clients already know exercise is good for them. The challenge is doing it consistently. A trainer who understands behaviour change keeps clients longer and achieves better results than one who only writes good programmes.

Fundamental concepts: COM-B

The COM-B model of behaviour Behaviour results from three interacting sources: capability (physical and psychological), opportunity (physical and social) and motivation (reflective and automatic). Capability and opportunity influence motivation, all three influence behaviour, and behaviour in turn feeds back to change capability, opportunity and motivation. Capability Physical: skills, strengthPsychological: knowledge, planning Opportunity Physical: time, access, costSocial: norms, support Motivation Reflective: goals, beliefsAutomatic: habits, emotions Behaviour behaviour feeds back Michie et al. (2011)
Figure 1. The COM-B model: capability and opportunity shape motivation, and all three produce behaviour. — Original diagram, FSHP Academy (schematic, not to scale).

Behaviour occurs when a person has the capability, opportunity and motivation to perform it [michie2011]. Diagnose which component is missing before choosing a solution:

BarrierExamplePossible response
CapabilityDoesn’t know how to use gym equipmentTeach, demonstrate, simplify
OpportunityLong commute, childcareShort home workouts, flexible times
MotivationDoesn’t enjoy runningFind enjoyable activities, link to values

Stages of change

The transtheoretical model describes precontemplation → contemplation → preparation → action → maintenance [prochaska1983]. Someone in precontemplation needs information and empathy, not a 5-day plan; someone in action needs structure and feedback.

Self-efficacy

Self-efficacy is confidence in one’s ability to perform a behaviour. Bandura identified four sources: mastery experiences (strongest), vicarious experience, verbal persuasion and physiological/emotional states [bandura1977]. Design early sessions so clients succeed.

Self-determination

Self-determination theory proposes three needs — autonomy, competence, relatedness. When these are supported, motivation becomes more self-driven and durable [ryan2000].

Common mistakes and misconceptions

Case study

Rahul, 38, repeatedly cancels 6 a.m. sessions. Using COM-B, the trainer finds the barrier is opportunity (late work finishes), not motivation. They switch to two lunchtime sessions plus one weekend walk with his family (relatedness). Attendance rises from 40% to 90% over two months.

Further learning: video lessons

Video links are only marked “verified” after a human has watched them. Unverified entries open a YouTube search for that channel and topic rather than a guessed link.

Technical needs verification — opens a YouTube search

Behaviour change wheel explained

UCL Centre for Behaviour Change (search)

You will understand: the COM-B model and intervention functions

Why: From the group that developed the model.
Introductory needs verification — opens a YouTube search

Self-determination theory in exercise

psychology educators (search)

You will understand: autonomy, competence and relatedness

Why: Introduces motivation theory.

Knowledge check

Knowledge check · 0/5

1. In COM-B, “opportunity” includes…

Answer B. Opportunity covers physical and social factors outside the person.

2. A client says “I know I should exercise but I’m not ready yet”. Which stage of change best fits?

Answer B. Contemplation: considering change but not yet committed.

3. The strongest source of self-efficacy, according to Bandura, is…

Answer B. Personal success experiences build the most robust confidence.

4. Self-determination theory identifies three basic needs…

Answer B. Supporting these needs fosters autonomous motivation.

5. Which technique best supports autonomy?

Answer B. Choice and shared decisions support autonomy.

Short-answer & application questions

  1. Use COM-B to analyse why a client misses morning sessions and propose two solutions.
  2. Design three “mastery experiences” for a nervous beginner in week 1.
  3. How would you adapt your approach to a client in precontemplation?

Key takeaways

  • Behaviour depends on capability, opportunity and motivation (COM-B), not knowledge alone.
  • People move through stages of readiness; match your approach to where they are.
  • Self-efficacy — confidence in one’s ability — strongly predicts adherence and grows through small successes.
  • Autonomy, competence and relatedness support lasting, self-driven motivation.

Connected topics

personal training

Effective communication, goal setting and teaching techniques

lifestyle nutrition

Habit formation and breaking restrict–binge cycles

geriatric fitness

Behavioural coaching, communication and adherence

lifestyle nutrition

Mindful eating and hunger/fullness cues

References

  1. Michie S, van Stralen MM, West R (2011). The behaviour change wheel: a new method for characterising and designing behaviour change interventions. Implementation Science, 6:42. doi:10.1186/1748-5908-6-42 Narrative review check pending
  2. Prochaska JO, DiClemente CC (1983). Stages and processes of self-change of smoking: toward an integrative model of change. Journal of Consulting and Clinical Psychology, 51(3):390–395. Classic study check pending
  3. Bandura A (1977). Self-efficacy: toward a unifying theory of behavioral change. Psychological Review, 84(2):191–215. Classic study check pending
  4. Ryan RM, Deci EL (2000). Self-determination theory and the facilitation of intrinsic motivation, social development, and well-being. American Psychologist, 55(1):68–78. Classic study check pending

Educational content only — not medical advice. Consult a qualified clinician for diagnosis or treatment.