Training methods (continuous, fartlek, interval, high-intensity interval training, resistance, plyometric, flexibility and circuit), the fitness component each method targets, the protocol for prescribing each, and the situations in which each method is appropriate

What this dot point is asking

VCAA Unit 4 AoS 2 expects you to know the training methods (continuous, fartlek, interval, HIIT, resistance, plyometric, flexibility and circuit), the fitness component each targets, the protocol for prescribing each, and when each is appropriate. The exam rewards applied recommendations: take a named athlete, identify what they need to develop, pick the right method, and justify the choice against specificity and the demands of the sport.

The answer

A training method is a structured way of delivering a training stimulus. Each method targets a particular fitness component through a particular protocol. The principles of training (covered in the training-principles dot point) tell you how to structure a program; the training methods tell you what is in the program.

Continuous training

Protocol

Sustained exercise at moderate intensity for an extended duration, with no rest intervals. Typical prescription is 20 minutes or longer at approximately 65 to 85 per cent of HR max, or 60 to 80 per cent of VO2 max. Modes include running, cycling, swimming, rowing.

Fitness components targeted

Aerobic capacity (VO2 max), aerobic endurance, fat oxidation capacity.

Physiology

The sustained submaximal load builds the aerobic infrastructure: mitochondrial density, capillary density, stroke volume, oxidative enzyme content, and the body's ability to use fat as fuel at submaximal intensities.

When to use

Building an aerobic base in the preparatory phase. For sports with sustained aerobic demand (marathon, triathlon, long-distance cycling, distance swimming, rowing). For recovery sessions in any sport.

Strengths and limits

Highly time-efficient for building aerobic base; relatively low injury risk. Does not develop speed, power or anaerobic capacity, and is not specific to sports with repeated high-intensity efforts.

Fartlek training

Protocol

Continuous exercise with unstructured variations in intensity. The performer alternates faster and slower segments based on terrain, mood, or planned variations, without a strict work-to-rest interval prescription. The term means "speed play" in Swedish.

Fitness components targeted

Aerobic capacity, anaerobic capacity at the upper end, and the ability to recover during exercise rather than after.

Physiology

The variations in intensity recruit both slow-twitch and fast-twitch fibres in a single session and stress both aerobic and anaerobic systems. The performer learns to recover at moderate intensity rather than at rest, which is more game-like than continuous training.

When to use

Bridging the preparatory and specific phases of a periodised program. For team-sport players who need a mix of aerobic and anaerobic fitness with a less rigid structure than HIIT.

Strengths and limits

More game-like than continuous training; varied and less mentally fatiguing than HIIT; less precise than structured interval prescription.

Interval training

Protocol

Alternating bouts of higher-intensity work with bouts of lower-intensity recovery, with the work and recovery times prescribed. Distinct from HIIT in that the work intensity is moderate to high rather than near-maximal. A typical aerobic interval session might be 6 to 10 repetitions of 3 to 5 minutes at 85 to 90 per cent of HR max with 2 to 3 minutes of jogging recovery.

Fitness components targeted

Depends on the work-to-rest ratio and work intensity. Aerobic intervals (longer work, longer rest, moderate intensity) target VO2 max; anaerobic intervals (shorter work, similar rest, high intensity) target anaerobic capacity.

Physiology

Interval training builds the capacity to sustain work at intensities at and above lactate threshold, which raises VO2 max and shifts the lactate threshold to a higher percentage of VO2 max.

When to use

Across the year for endurance athletes (rowing, cycling, distance running). In the specific phase of periodised programs for team-sport players.

Strengths and limits

Highly trainable, with intensity and recovery prescribed precisely; allows progressive overload through changes in work intensity, work duration, recovery duration, or repetition count.

High-intensity interval training (HIIT)

Protocol. Short bouts of near-maximal or maximal effort (approximately 85 to 95 per cent or higher of HR max) lasting 10 seconds to 4 minutes, interspersed with rest or low-intensity recovery. Common formats include:

• Tabata. 20 seconds of all-out work, 10 seconds rest, 8 rounds (4 minutes of work-rest), repeated for multiple sets.
• 30:15s and 30:30s. 30 seconds of high work followed by 15 or 30 seconds of recovery.
• Repeat sprint training (RST). 6 to 10 sprints of 4 to 7 seconds with 20 to 30 seconds recovery, repeated for several sets.
• Sport-specific shuttle protocols. Beep test style or court-shape sprints with prescribed rest.

Fitness components targeted

Anaerobic capacity, lactate tolerance, repeat-sprint ability, and (in the longer interval variants) VO2 max. Research has shown HIIT can raise VO2 max in less total session time than continuous training while also developing anaerobic capacity.

Physiology

Near-maximal efforts recruit the full motor unit pool including fast-twitch fibres. Repeated efforts at this intensity produce high lactate accumulation, training the buffering systems that clear hydrogen ions and the cardiovascular system that delivers oxygen for recovery between efforts. Approximately 6 weeks of HIIT can produce measurable rises in VO2 max in untrained populations; effects in trained populations are smaller but real.

When to use

For team-sport players (AFL, netball, basketball, rugby league, soccer) who need repeat-sprint ability. For combat-sport athletes (boxing, MMA) whose rounds match the work-rest pattern. For time-poor recreational athletes seeking aerobic and anaerobic benefit with limited training time.

Strengths and limits

Highly time-efficient; produces both aerobic and anaerobic gains; closely matches the work-rest pattern of many team sports. Carries higher injury and overtraining risk than continuous training; not suited to raw beginners or athletes with cardiovascular conditions without medical clearance.

Resistance training

Protocol. Movements against external resistance, with the load, repetition count, set count and rest interval prescribed for the target adaptation.

• Maximal strength. 1 to 5 repetitions at 85 to 100 per cent of 1RM, 3 to 6 sets, 3 to 5 minutes rest between sets, 2 to 4 sessions per week.
• Hypertrophy (muscle size). 6 to 12 repetitions at 65 to 85 per cent of 1RM, 3 to 5 sets, 1 to 2 minutes rest, 2 to 4 sessions per week.
• Muscular endurance. 15 to 25 repetitions at 50 to 65 per cent of 1RM, 2 to 4 sets, 30 to 60 seconds rest, 2 to 4 sessions per week.
• Power. 1 to 5 repetitions at 30 to 60 per cent of 1RM moved at maximal velocity, 3 to 5 sets, 3 to 5 minutes rest. Olympic lifts (clean, snatch, jerk) are a common power-training mode.

Fitness components targeted

Maximal strength, hypertrophy, muscular endurance, or power, depending on the protocol.

Physiology

Neural adaptations (more motor units recruited, higher firing rate, better coordination) dominate the first 4 to 6 weeks of training. Structural adaptations (muscle fibre hypertrophy, particularly Type II fibres) develop from 6 to 8 weeks onward. Tendon and ligament strength rise more slowly than muscle strength, which is one reason rapid load increases produce injury risk.

When to use

Universal in modern athletic preparation. The protocol is chosen for the demand: a powerlifter trains maximal strength; a rugby league forward trains hypertrophy and maximal strength; a distance runner trains muscular endurance and limited strength to support running mechanics.

Strengths and limits

Highly programmable; targets specific adaptations. Requires technical instruction to use safely; requires recovery time between sessions; loads must progress carefully to avoid overuse injury.

Plyometric training

Protocol

Movements that use the stretch-shortening cycle (SSC), where the muscle is rapidly lengthened (eccentric phase) and then immediately shortened (concentric phase) to generate maximal force in a short time. Common drills include box jumps, depth jumps, bounding, single-leg hops, lateral jumps, medicine-ball throws and slams. Prescription is typically 3 to 6 sets of 5 to 10 repetitions, with 2 to 3 minutes of full recovery between sets.

Fitness components targeted

Power, rate of force development, reactive strength.

Physiology

The stretch-shortening cycle uses elastic energy stored in the muscle and tendon during the eccentric phase, plus the muscle-spindle stretch reflex, to produce more force in a fast concentric contraction than would be possible from a static start. Plyometric training develops both the elastic component (tendon stiffness, contractile element behaviour) and the neural component (rate coding, coordination).

When to use

For any sport requiring fast force production. Examples include volleyball (spike approach, block jump), basketball (jump shot, rebound), netball (drive, jump), high jump and long jump, sprint starts, AFL and rugby league (acceleration off the mark, contests).

Strengths and limits

Highly transferable to sport. Carries high injury risk in athletes without adequate strength base; convention is to require an athlete to be able to back-squat approximately 1.5 times bodyweight before high-volume plyometric prescription. Surfaces matter (avoid concrete); shoes matter; recovery between sessions matters (48 to 72 hours).

Flexibility training

Protocol. Stretching movements that increase range of motion. Forms include:

• Static stretching. Holding a stretch at the end of range for 20 to 60 seconds. Best used in cooldown and as a separate flexibility session, not immediately before high-intensity performance (acute static stretching can transiently reduce force output).
• Dynamic stretching. Controlled movement through a full range, often as part of a warm-up (leg swings, arm circles, walking lunges with rotation).
• PNF (proprioceptive neuromuscular facilitation). Contract-relax stretching, where the muscle is contracted against resistance and then stretched further into the relaxed state. Produces larger range-of-motion gains than static stretching but requires a partner.

Fitness component targeted

Flexibility (joint range of motion).

Physiology

Stretching changes the tolerance of the stretch reflex and over time can lengthen the muscle and connective tissue. Adaptations are highly specific to the joint and range trained.

When to use

Dynamic stretching in warm-ups (across all sports). Static stretching in cooldowns and for athletes who need exceptional range (gymnastics, ballet, swimming). PNF for rapid range gains in rehabilitation and for athletes targeting specific joint flexibility.

Strengths and limits

Cheap, no equipment, fits anywhere. Acute static stretching immediately before maximal force or power performance can reduce output by approximately 5 per cent, so it should not be used in warm-ups for sprint, jump or strength performance.

Circuit training

Protocol

A sequence of exercises (typically 6 to 12 stations) performed one after another with brief rest, completed for a number of laps. Each station can target different fitness components.

Fitness components targeted

Depends on the design. A typical circuit can build muscular endurance, aerobic capacity, and basic strength in the same session.

Physiology

The continuous nature with brief rest sustains an elevated heart rate while also producing localised muscular fatigue at each station.

When to use

Time-constrained team-sport pre-season conditioning, school PE settings, group training where individualised prescription is hard, general fitness for recreational populations.

Strengths and limits

Time-efficient and highly scalable; covers multiple fitness components in one session. Less precise than method-specific training; loads are usually moderate, so maximal strength and maximal power gains are limited.

Choosing a training method for a sport

A typical VCAA application asks you to recommend a training method for a named athlete or sport. The decision flows from specificity: match the energy system, the muscle groups, the movement patterns and the speed of movement that the sport demands.

Most well-designed programs use multiple methods in combination, with the mix shifting by phase of the periodised year.

How this dot point applies

Strong responses pick a named athlete or sport, identify the fitness components their event demands, pick the training methods that target those components, and justify the choice against specificity. Weak responses recite the methods in the abstract without making the design decision the question is asking for.

Examples in context

Example 1. Pre-season conditioning for an AFL midfielder. An AFL midfielder needs aerobic base (to recover between contests over four quarters), repeat-sprint ability (high-speed running counts of approximately 20 to 30 efforts per game), strength (for contests and tackles), and power (for accelerations and leaps). A modern AFL pre-season uses continuous training in the early base block (60 to 80 minute moderate runs), shifts to fartlek and aerobic interval training in the build phase (5 to 8 minute efforts at threshold), layers in HIIT and repeat sprint training in the specific phase (matching the 3 to 4 second sprint pattern of the game), runs resistance training year-round (strength and hypertrophy with progression toward power closer to the season), and uses plyometric drills (box jumps, bounding, lateral hops) for the acceleration and leaping demands. AIS sport-science publications and AFL high-performance practice both describe this multi-method approach as the standard.

Example 2. A junior swimmer building a 200 m freestyle base. A 16 year old training for the 200 m freestyle needs aerobic capacity (the event lasts approximately 2 minutes and is approximately 60 per cent aerobic), anaerobic capacity (the back end loads the lactate system), strength and power (for the dive start, each turn and the kick), and flexibility (shoulder and ankle range for an efficient stroke). The program uses continuous swimming for the aerobic base (long aerobic sets of 1500 to 4000 metres at moderate intensity), interval training and HIIT for the anaerobic and VO2 max work (sets of 4 by 100 metres at race pace with descending rest, or 8 by 50 metres maximal with full recovery), dryland resistance training (cable rows, pull-ups, single-leg squats, rotational core work, with hypertrophy progressing to power), plyometric work (medicine-ball slams, depth jumps, broad jumps) for dive-start power, and static stretching in cooldowns plus PNF work for shoulder flexibility. The mix shifts across the macrocycle, with continuous and resistance training dominating early and HIIT and power-focused plyometric work rising as the championship approaches.

Try this

Q1. State one training method appropriate for each of the following: a marathon runner, a 100 m sprinter, a netball player, a powerlifter. Justify each choice in one sentence. [4 marks]

• Cue. Marathon runner - continuous training (matches the sustained aerobic demand of the event); 100 m sprinter - resistance and plyometric training (develops the maximal force and rate of force development a sprint demands); netball player - HIIT or repeat sprint training (matches the repeated high-intensity short-burst pattern of the game); powerlifter - resistance training at low reps high load (specificity for maximal strength).

Q2. Describe the protocol for a typical HIIT session and explain why HIIT builds both anaerobic capacity and VO2 max despite the short total session time. [4 marks]

• Cue. Short bouts of near-maximal effort (10 seconds to 4 minutes, approximately 85 to 95 per cent or higher of HR max) interspersed with rest or low-intensity recovery, total work commonly 15 to 30 minutes. The near-maximal intensity recruits the full motor unit pool and produces high lactate accumulation, training anaerobic capacity and buffering; the repeated efforts at intensities at and above VO2 max also train the cardiovascular system to deliver oxygen for recovery, which raises VO2 max.

Q3. Explain why a coach would programme plyometric training before a netball season but not in the first week of an off-season returnee with no strength base. [3 marks]

• Cue. Plyometric training uses rapid stretch-shortening cycle loading that produces high forces in short ground-contact times, transferring to drive and jump performance for netball. Athletes without an adequate strength base (commonly considered roughly 1.5 times bodyweight back squat) carry a high injury risk because the muscle-tendon unit cannot tolerate the fast eccentric loading. A returnee should build strength first and layer plyometric work in once the base is in place.