In-Season Strength Training for Athletes

The In-Season Dilemma

A 2020 meta-analysis by Suchomel et al. documented that team sport athletes who maintained ≥1 strength session per week during competition season retained 95% of their pre-season maximal strength over 16 weeks — while those who discontinued strength training lost 20–30% within 6–8 weeks. The in-season dilemma is real: training enough to maintain strength without tipping into non-functional overreaching that degrades performance and elevates injury risk.

Most coaches err in one of two directions: abandoning strength training entirely to protect recovery, or maintaining off-season volume that overloads an already taxed neuromuscular system. Both are mistakes. The solution is a deliberate minimum-effective-dose approach, autoregulated with objective velocity data to account for the day-to-day variation in athlete readiness that competition schedules create.

Minimum Effective Dose

The concept of minimum effective dose (MED) for strength maintenance was operationalized by Ralston et al. (2017) in a systematic review of detraining and reduced training literature. Key findings:

• Frequency: 1 session per week is sufficient to maintain maximal strength in trained athletes for up to 12–16 weeks, provided intensity is maintained.
• Volume: As few as 1–3 working sets per exercise at ≥80% 1RM elicits a maintenance stimulus. Volume reductions of 40–70% from the off-season peak are well-tolerated without performance decline.
• Intensity: Load (% 1RM) is the non-negotiable variable. Dropping below 70–75% 1RM while reducing volume results in measurable strength loss within 4–6 weeks. Keep the weight heavy — reduce reps and sets instead.

The practical implication: an in-season program can be as simple as 2 sets × 3–5 reps at 80–85% 1RM for 2–3 compound exercises, performed 1–2 times per week. This represents roughly 15–20 minutes of actual work — an investment that protects the entire season's physical output.

Load Management Principles

In-season load management differs fundamentally from off-season periodization because the primary stressor is the sport itself — training load is a secondary stimulus that must be added within the athlete's recovery capacity. Three principles govern effective in-season load management:

1. Modulate Volume, Not Intensity

When competition density increases (e.g., a 3-game week), the first response should be reducing the number of sets, not the weight on the bar. A 1×5 at 83% 1RM maintains the neural drive and tendon loading that prevents detraining; a 3×10 at 60% neither maintains strength nor provides recovery.

2. Respect the Acute:Chronic Workload Ratio

The acute:chronic workload ratio (ACWR) framework — tracking training load over the most recent week relative to the preceding 4-week rolling average — is widely validated for injury risk monitoring in team sports. An ACWR spike above 1.5 signals elevated injury risk. In-season strength sessions must be accounted for in the total workload calculation, not treated as separate from sport training.

3. Use Readiness Data, Not the Calendar

A prescribed Tuesday strength session may need to become Wednesday if Monday's match was physically demanding. Rigid adherence to a weekly schedule without readiness assessment is the primary cause of in-season overtraining. Daily CMJ monitoring provides the objective signal to make this decision systematically rather than subjectively.

Program Templates by Sport

In-season strength training must fit within the constraints of each sport's practice and competition schedule. The following templates are designed for the most common competition densities:

Exercise Selection for In-Season

Prioritize exercises with the highest strength-to-fatigue ratio: trap bar deadlift, back squat, hip thrust, and bench press. Avoid high-fatigue accessories (e.g., 4×12 dumbbell lunges) that generate soreness without commensurate maintenance benefit. Single-leg work is valuable for asymmetry management but should be performed at reduced volume (1–2 sets) rather than as the primary training stimulus.

VBT Autoregulation In-Season

Velocity-based training is arguably most valuable during the competition season, when day-to-day readiness variation is highest. The principle is straightforward: prescribe loads by velocity zone rather than by fixed % 1RM, and autoregulate volume using velocity-loss cutoffs.

In-Season Velocity Zones

Daily Readiness Protocol

Before each in-season session, the athlete performs 2 reps at a fixed reference load (typically 60–65% 1RM). If MCV at this reference load is within ±5% of the athlete's rolling 4-week average, proceed with the prescribed session. A decline of 5–10% triggers a 10–15% load reduction. A decline exceeding 10% signals insufficient recovery — convert the session to technical work or light activation only, and defer the strength stimulus.

This protocol takes under 90 seconds and removes the guesswork from in-season load decisions. Using PoinT GO for these reference measurements gives coaches and athletes a data trail that makes performance trends, fatigue patterns, and the effects of competition travel visible across an entire season.

Monitoring Fatigue and Readiness

Effective in-season management requires quantifying both the training input and the athlete's recovery output. Three monitoring tools are most supported by evidence:

1. Daily CMJ height (3 attempts pre-training): Claudino et al. (2017) validated CMJ as the most sensitive neuromuscular fatigue indicator in a systematic review of 25 studies. A decline of ≥5% from the rolling baseline warrants load reduction. A decline of ≥10% warrants significant session modification or rest.
2. Reference-load barbell velocity: More specific to neuromuscular readiness for strength training than CMJ. Best combined with CMJ to distinguish between general fatigue and sport-specific neuromuscular status.
3. Subjective wellness questionnaire (5 questions, 1–5 scale): Sleep quality, mood, muscle soreness, stress, and fatigue. Hooper Index or equivalent. Most valid when averaged into a composite score. Sudden drops of 3+ points (out of 25) correlate with increased injury risk.

Combining objective velocity data from PoinT GO with subjective wellness scores takes less than 5 minutes per athlete per session. Over the course of a competitive season, this data identifies individual fatigue patterns and informs evidence-based tapering decisions before critical competitions.

Common In-Season Programming Mistakes

Even well-intentioned in-season programs fail for predictable reasons. Understanding the most common errors prevents the two worst outcomes: losing competition-season strength through abandonment, or triggering non-functional overreaching through excessive load.

Mistake 1: Abandoning Strength Training Entirely

The most common error among team sport coaches is discontinuing strength training at the start of competition, believing recovery is the only priority. This is a false economy. Within 6–8 weeks of complete strength training cessation, maximal strength declines 20–30% and explosive power declines at a similar rate (Suchomel et al., 2020). Athletes playing their worst physical performance late in a season who stopped strength training in week 4 are experiencing the consequences of this decision.

Mistake 2: Maintaining Off-Season Volume

Carrying full pre-season training loads into competition produces cumulative fatigue that impairs performance and elevates injury risk. The ACWR data consistently shows that periods where total training load spikes above 1.5× the rolling 4-week average correspond to 2–4× higher injury rates regardless of sport. In-season volume must be reduced 40–60% from the off-season peak while keeping intensity high.

Mistake 3: Substituting Intensity with Volume

A common misguided compromise is replacing 3×5 at 85% with 4×12 at 65% — maintaining "total volume" while reducing "intensity." This produces the worst of both worlds: insufficient neural stimulus for strength maintenance, excessive metabolite accumulation that slows recovery, and increased muscle damage that impairs athletic performance for 48–72 hours. During in-season, always protect intensity (≥78% 1RM) and sacrifice volume (sets and reps).

Mistake 4: Ignoring Match-Day Timing

Scheduling high-intensity strength sessions within 36–48 hours of competition without velocity monitoring risks carrying neuromuscular deficit into the game. A 2-rep reference load test before any session within 36 hours of competition takes 90 seconds and tells you definitively whether the athlete has recovered enough to train intensely or needs a technical maintenance session instead. This simple protocol, enabled by PoinT GO, eliminates the guesswork from the most consequential load management decisions of the week.