Key Takeaways

  • Volume = Sets x Reps x Load; manipulating these variables drives specific adaptations.
  • Rest periods: 30 seconds-1 minute for endurance, 2-3 minutes for hypertrophy, 3-5 minutes for strength/power.
  • Exercise order: large muscle groups before small, multi-joint before single-joint, power before strength before hypertrophy.
  • Training frequency depends on intensity—heavier loads require more recovery (48-72 hours between same muscle groups).
  • Intensity is expressed as percentage of 1RM; higher intensities (>85%) require fewer reps and more rest.
Last updated: January 2026

Training Variables

Quick Answer: The key training variables are intensity (load), volume (sets x reps x load), rest periods, frequency, and exercise order. Each variable must be manipulated according to training goals—strength requires high intensity with low reps and long rest, while hypertrophy uses moderate intensity with higher volume and shorter rest.

Volume

Volume represents the total amount of work performed. It can be calculated as:

Volume = Sets x Reps x Load

Training GoalSets per ExerciseReps per SetTotal Volume per Exercise
Strength2-61-6Low-moderate
Power3-61-6Low-moderate
Hypertrophy3-66-12High
Muscular Endurance2-312-25+High reps, low load

Volume Recommendations by Training Status

Training StatusSets per Muscle Group/Week
Beginner10-12 sets
Intermediate12-16 sets
Advanced16-20+ sets

Intensity (Load)

Intensity is expressed as a percentage of 1RM (one-repetition maximum).

Training Goal% 1RMRep Range
Strength85-100%1-6
Power (single-effort)80-90%1-2
Power (multiple-effort)75-85%3-5
Hypertrophy67-85%6-12
Muscular Endurance≤67%12-25+

1RM Estimation Table

Reps CompletedApproximate % 1RM
1100%
295%
393%
490%
587%
685%
880%
1075%
1270%
1565%

Rest Periods

Rest periods between sets depend on training goal and intensity.

Training GoalRest PeriodRationale
Power2-5 minutesFull ATP-PC recovery, maintain velocity
Strength2-5 minutesFull phosphagen recovery, maintain quality
Hypertrophy30-90 secondsMetabolic stress, GH response
Muscular Endurance30 seconds or lessFatigue resistance adaptation

Rest Period Guidelines by % 1RM

Load (% 1RM)Recommended Rest
50-70%1-2 minutes
70-80%2-3 minutes
80-90%3-4 minutes
90-100%3-5+ minutes

Training Frequency

Frequency refers to the number of training sessions per week, either total or per muscle group.

Training GoalSessions/WeekRest Between Same Muscle
Strength/Power2-4 per muscle48-72 hours
Hypertrophy2-3 per muscle48-72 hours
Endurance3-5 total24-48 hours

Frequency by Training Status

StatusRecommended Frequency
Beginner2-3 days/week (full body)
Intermediate3-4 days/week (split routine)
Advanced4-6 days/week (body part split)

Exercise Order

Proper exercise order maximizes performance and safety.

General Ordering Guidelines

PriorityExercise TypeRationale
1stPower exercisesRequire freshness for speed/technique
2ndCore/multi-joint strengthMost demanding, largest muscle groups
3rdAccessory/single-jointAssistance exercises, smaller muscles

Specific Exercise Order Rules

  1. Power before strength - Olympic lifts before squats/deadlifts
  2. Multi-joint before single-joint - Bench press before triceps extensions
  3. Large muscle groups before small - Legs before calves
  4. Higher intensity before lower - Heavy sets before lighter volume
  5. Compound before isolation - Rows before bicep curls

Example Exercise Order (Upper Body Day)

OrderExerciseType
1Power CleanPower
2Bench PressMulti-joint strength
3Barbell RowMulti-joint strength
4Overhead PressMulti-joint strength
5Triceps PushdownSingle-joint
6Biceps CurlSingle-joint

Alternating vs. Superset Training

MethodDescriptionBest For
AlternatingAlternate agonist/antagonistStrength, reduces fatigue
Compound SetsSame muscle, consecutiveHypertrophy, metabolic stress
SupersetsDifferent muscles, no restTime efficiency, conditioning

Training Variable Summary Table

VariableStrengthPowerHypertrophyEndurance
Load (% 1RM)85-100%75-90%67-85%≤67%
Reps1-61-66-1212-25+
Sets2-63-63-62-3
Rest2-5 min2-5 min30-90 sec≤30 sec
Frequency/Week2-42-42-33-5
Test Your Knowledge

An athlete is training for maximum strength. Which of the following combinations of load, reps, and rest is MOST appropriate?

A
B
C
D
Test Your Knowledge

Which exercise order is MOST appropriate for a training session that includes power cleans, bench press, and triceps pushdowns?

A
B
C
D
Test Your Knowledge

A coach prescribes 4 sets of 10 repetitions at 185 pounds for the squat. What is the total training volume for this exercise?

A
B
C
D
Test Your Knowledge

What is the recommended rest period between sets for an athlete training for muscular hypertrophy?

A
B
C
D