Table of Contents
- Key Highlights:
- Introduction
- What the "Anabolic Window" Really Means
- How Pre-Workout Nutrition and Workout Type Shape Post-Workout Needs
- How Much Protein Per Dose: Leucine Thresholds and Practical Targets
- Protein Sources: Speed of Digestion and Practical Choices
- The Role of Carbohydrates and Hydration in Post-Workout Recovery
- Age, Sex, and Individual Physiology: Who Needs to Prioritize Timing?
- Practical Meal and Snack Examples for Different Scenarios
- Sample Daily Protein Distribution Plans
- Monitoring Progress: Signs Your Timing Strategy Works or Needs Adjustment
- Common Myths and Mistakes
- Adjusting Timing for Multiple Daily Sessions and Competitive Schedules
- Supplements and Practical Considerations
- Case Studies: Applying Principles to Real Athletes
- Implementing a Simple, Sustainable Routine
- Troubleshooting: When Gains Stall
- Ethical and Practical Considerations for Athletes
- Closing Perspective
- FAQ
Key Highlights:
- The classic 30–60 minute "anabolic window" is narrower in popular lore than in physiology. Consuming protein within about 2–3 hours after exercise supports muscle protein synthesis, with earlier feeding more important when workouts are fasted or particularly long/intense.
- Prioritize total daily protein (1.6–2.2 g/kg body weight) and distribute protein evenly across meals (roughly 0.3–0.45 g/kg per meal). Choose high-quality proteins (whey, eggs, lean meats, or properly combined plant proteins) and pair with carbohydrates and fluids when appropriate.
- Tailor timing to context: older adults, fasted trainees, and athletes doing long, glycogen-depleting sessions benefit from earlier post-workout protein and carb intake. Practical meal and snack templates make implementation straightforward.
Introduction
Athletes and gym-goers confront a steady stream of advice on protein: how much, what kind, and when. Debate often centers on timing—specifically the so-called “anabolic window,” a brief period after exercise during which nutrient intake supposedly produces outsized gains in muscle. That notion grew from early studies showing heightened muscle protein synthesis after resistance exercise, and it was easy to translate into a rule: drink a protein shake within 30–60 minutes or risk lost gains.
Subsequent research and practical experience have shown the story is more nuanced. Muscle repair and growth depend on cumulative protein intake across the day and the interaction between training, feeding, and individual physiology. Timing matters, but not in the rigid way many fitness communities describe. This article synthesizes the current evidence, breaks down the variables that shape optimal protein timing, and delivers clear, actionable protocols tailored to different real-world scenarios—from morning fasted lifters to endurance athletes and older adults.
What follows is a practical guide to making protein timing work for your training and lifestyle, with specific meal examples, dosing calculations, and troubleshooting advice so you can turn theory into results.
What the "Anabolic Window" Really Means
The anabolic window originally described a post-exercise period when muscles were particularly receptive to amino acids and insulin, which together stimulate muscle protein synthesis (MPS) and blunt protein breakdown. Early interpretations tightened this window to 30–60 minutes and framed it as decisive: miss it, and you miss growth.
Later work refined the concept. Resistance exercise raises MPS for many hours, creating an extended period during which the body can use dietary amino acids to repair and build muscle. The practical result: while feeding soon after exercise can be beneficial—especially after prolonged training or when you trained fast—the absolute requirement to consume protein within half an hour is overstated for most people.
Several practical principles emerge:
- Exercise sensitizes muscle to amino acids for hours. Timing matters less than meeting protein needs over the course of the day.
- Immediate protein intake matters most when the pre-exercise meal was many hours earlier, when training was exceptionally long or intense, or where the athlete has specific recovery needs (e.g., multiple daily sessions).
- The size and quality of the protein dose determine the immediate MPS response more than the exact minute you start drinking a shake.
Those principles reframe the anabolic window as a useful heuristic rather than a strict deadline.
How Pre-Workout Nutrition and Workout Type Shape Post-Workout Needs
Pre-workout feeding establishes the amino acid pool available during and after exercise. If you ate a balanced meal with protein 1–3 hours before training, circulating amino acids remain available during the workout and immediately afterwards, reducing urgency to feed right away. Conversely, a fasted morning session leaves you dependent on post-workout nutrition.
Workout intensity and duration matter. A 45-minute moderate-intensity strength session creates a different physiological demand than a two-hour endurance ride or a heavy, high-volume hypertrophy workout. Longer and more intense sessions deplete glycogen, increase protein breakdown, and create a larger recovery window. Those sessions tend to benefit from earlier carbohydrate+protein ingestion to begin glycogen repletion and blunt further catabolism.
Real-world examples:
- Morning fasted lifter: No pre-workout meal; protein within 30–60 minutes can accelerate recovery and reduce protein breakdown.
- Afternoon lifter who ate a protein-rich lunch two hours prior: The post-workout meal can be scheduled within 2–3 hours without compromising MPS.
- Endurance athlete after a long race: Immediate carbohydrate+protein (within 30–60 minutes) optimizes glycogen resynthesis and repair.
Tailoring timing to the workout context leads to better outcomes than rigidly chasing a half-hour window after every session.
How Much Protein Per Dose: Leucine Thresholds and Practical Targets
Muscle protein synthesis responds to amino acid availability in a dose-dependent manner up to a point. Two practical figures guide meal-level dosing:
- Per-meal protein to maximize MPS: roughly 0.3–0.45 g/kg body weight (roughly 20–40 g of high-quality protein for most adults). That range delivers sufficient essential amino acids and typically meets the leucine threshold needed to trigger MPS.
- Total daily protein: aim for approximately 1.6–2.2 g/kg body weight for most people pursuing muscle gain or preserving lean mass during weight loss. Athletes in heavy training or those with higher energy outputs may trend toward the upper end.
Leucine plays an outsized role. This branched-chain amino acid acts as a signal to start protein synthesis. Evidence suggests about 2.5–3 grams of leucine per meal is a practical target to maximize MPS in young adults; older adults often require more per meal because of anabolic resistance. High-quality animal proteins (whey, eggs, dairy, beef) deliver leucine efficiently, while plant proteins often require larger or combined servings to reach the same leucine content.
Example calculations:
- 80 kg (176 lb) person aiming for 1.8 g/kg/day: 80 × 1.8 = 144 g/day.
- Divided into four meals: 144 / 4 = 36 g/meal (0.45 g/kg/meal).
- 68 kg (150 lb) person aiming for 1.6 g/kg/day: 68 × 1.6 = 109 g/day.
- Divided into three meals plus a snack: ~30–35 g/meal.
These per-meal benchmarks fit the physiology of MPS and make scheduling simpler.
Protein Sources: Speed of Digestion and Practical Choices
Different proteins digest and absorb at varying speeds. That affects immediate availability of amino acids but does not change the need for sufficient total protein.
- Whey protein: Rapidly digested, high leucine content, strong MPS response. Commonly used post-workout for quick amino acid delivery.
- Casein protein: Slower-digesting, good for sustained overnight amino acid availability; useful before sleep or prolonged fasting.
- Eggs: Whole eggs and egg whites both supply high-quality protein. Cooking slows digestion relative to liquid proteins but provides excellent amino acid profiles.
- Lean meats, poultry, fish: Complete proteins with excellent amino acid balance. Slower than whey but still effective when eaten within a few hours post-exercise.
- Plant proteins (soy, pea, rice, blends): Effective when appropriately dosed or combined. Blends can approximate animal protein profiles; higher total doses may be necessary to reach leucine targets.
Practical guidance:
- If training fasted or if you need rapid amino acid availability, whey or a mixed meal with fast-digesting protein is practical.
- For an evening workout followed by sleep, consider a slower protein (casein) or a meal containing both fast and slow proteins to provide immediate and sustained amino acid delivery.
- Vegans can meet targets by combining proteins (e.g., pea+rice) or increasing total protein to compensate for lower leucine per gram.
The Role of Carbohydrates and Hydration in Post-Workout Recovery
Protein repairs muscle, but carbohydrates refill glycogen and insulin potentiates amino acid uptake. For resistance training with moderate glycogen depletion, carbohydrate timing is less critical than total daily intake. For endurance work or multi-session days, prompt carbohydrate intake is valuable.
- For long endurance sessions (>90 minutes) or multiple training sessions per day: aim for 1.0–1.2 g/kg/hour of carbohydrates in the immediate post-exercise period to maximize glycogen repletion when time between sessions is limited.
- For strength training or single daily sessions: 0.5–0.7 g/kg of carbohydrates alongside protein often suffices for glycogen support and recovery.
- Hydration: Replace sweat losses with fluids and electrolytes. A quick practical approach is drinking 500–750 ml of fluid in the first hour post-exercise, adjusted for sweat rate and exercise duration, and including sodium for heavy sweaters or long sessions.
Combining carbohydrate with protein increases insulin response, which can speed glycogen restoration and reduce post-exercise muscle protein breakdown. Examples: chocolate milk after long workouts, turkey and rice, or a whey+banana smoothie.
Age, Sex, and Individual Physiology: Who Needs to Prioritize Timing?
Metabolism, hormonal milieu, and training history affect nutrient needs.
Older adults:
- Experience anabolic resistance: a blunted MPS response to the same protein dose. Practical adjustments include larger per-meal protein doses (toward 0.4–0.45 g/kg) and higher leucine content per serving. Immediate post-workout feeding is particularly beneficial.
Women:
- Protein needs for hypertrophy align with body weight and training volume. Pregnant or breastfeeding women should consult healthcare providers for individualized targets. Menstrual cycle phase can influence training and recovery but does not drastically change daily protein targets for most.
Highly trained athletes:
- Those with large lean mass or high energy output may require higher total protein (2.0–2.4 g/kg) and may benefit from earlier post-workout nutrition, especially during periods of high training frequency.
Individuals with fast metabolisms or low body fat:
- May feel and recover better when protein is consumed sooner due to higher turnover and greater relative protein needs.
Medical considerations:
- Kidney disease patients need medical supervision for protein intake. Healthy individuals with normal kidney function tolerate recommended ranges without harm.
Adjust targets based on performance, recovery, and body composition goals rather than strict age- or sex-based rules alone.
Practical Meal and Snack Examples for Different Scenarios
Below are realistic templates for delivering effective post-workout nutrition across varied contexts. Each example focuses on protein dose, leucine content when relevant, carbohydrate pairing, and practicality.
- Morning fasted strength session (goal: muscle gain)
- Whey protein shake (25–30 g protein) blended with 1 medium banana (27 g carbs) and 250 ml milk or fortified plant milk.
- Estimated macros: 30 g protein, 30–40 g carbs.
- Rationale: Rapid amino acids after a fasted session reduce catabolism and jump-start repair.
- Afternoon session with lunch 2 hours prior (goal: maintain muscle)
- Grilled chicken salad with quinoa and mixed vegetables.
- Portion: 120–150 g chicken breast (~30–35 g protein), 1 cup cooked quinoa (~8 g protein, 40 g carbs), olive oil/vinegar dressing.
- Estimated macros: 38–45 g protein, 35–45 g carbs.
- Rationale: Pre-meal provides amino acids; post-workout meal within 2–3 hours supports ongoing MPS.
- Long endurance ride (>90 minutes)
- Immediately after: 0.3–0.4 g/kg protein plus 1.0–1.2 g/kg carbs within the first hour.
- Example for 70 kg rider: ~25–30 g protein + 70–85 g carbs.
- Practical meal: Recovery drink with 40–50 g carbs (maltodextrin/dextrose) and 20–30 g whey, followed by a balanced meal within 2 hours.
- Rationale: Rapid glycogen restoration and muscle repair when time between sessions is limited.
- Evening hypertrophy session before bedtime
- Post-workout: mixed meal with fast and slow proteins (e.g., Greek yogurt with whey mixed in, nuts, and fruit).
- Casein or cottage cheese before bed can sustain amino acid delivery overnight.
- Example: 200 g Greek yogurt (20 g protein) + 1 scoop whey (25 g protein) + 1 tbsp nut butter = ~45 g protein.
- Rationale: Immediate repair and sustained overnight supply.
- Vegan athlete post-resistance training
- Smoothie with blended pea+rice protein (40 g total), rolled oats (30 g carbs), mixed berries, and a tablespoon of ground flaxseed.
- Rationale: Higher dose compensates for lower leucine concentration in many plant proteins; blending proteins improves amino acid completeness.
These templates can be adjusted by body weight, energy needs, and preferences. A kitchen scale and label reading simplify portioning.
Sample Daily Protein Distribution Plans
Even distribution promotes repeated MPS spikes and supports muscle remodeling throughout the day.
Three-meal plan (for those who prefer larger meals):
- Breakfast: 35–45 g protein
- Lunch: 35–45 g protein
- Dinner: 35–45 g protein
- Optional snack: 15–25 g protein if total target demands it
Four-meal plan (commonly used by athletes and those seeking even distribution):
- Breakfast: 25–40 g protein
- Midday snack/post-lunch: 25–35 g protein
- Post-workout meal: 25–40 g protein
- Evening meal/bedtime protein: 25–40 g protein (include casein or whole-food)
For an 80 kg athlete targeting 1.8 g/kg/day (144 g):
- Four meals of ~36 g each meet the target while assuring robust per-meal leucine delivery.
Consistency in distribution matters. Spiking protein in a single meal and skimping the rest blunts the repeated MPS stimulation that supports net gains.
Monitoring Progress: Signs Your Timing Strategy Works or Needs Adjustment
Change feeding strategies and observe measurable outcomes over several weeks. Key markers:
Performance:
- Strength and power progression in the gym.
- Ability to complete training volume without disproportionate fatigue.
Recovery:
- Reduced delayed onset muscle soreness (DOMS) and faster readiness for subsequent sessions.
- Perceived recovery ratings (on a simple 1–10 scale) after different feeding schedules.
Body composition:
- Lean mass gains or preservation during weight loss phases. Track via reliable methods available to you (progress photos, tape measurements, scale trends, or DEXA where available).
Energy and hunger:
- Stable energy between meals and effective hunger control. If timing causes excessive hunger or energy dips, shift meal timing earlier or increase snack protein.
If recovery lags:
- Increase per-meal protein within recommended ranges.
- Shift to earlier post-workout feeding if sessions are long or fasted.
- Add carbohydrates when glycogen depletion is likely.
The body gives clear feedback; adjust according to training demands and personal response rather than dogma.
Common Myths and Mistakes
Myth: The body can only use 20–25 g of protein per meal.
- Reality: While MPS tends to plateau after a per-meal “effective” dose, higher protein meals contribute to whole-body protein balance and satiety. Effective MPS stimulation may occur with roughly 20–40 g depending on body size and age.
Myth: A protein shake is mandatory immediately post-workout.
- Reality: A shake is convenient and effective, particularly if fasted or short on time. A full meal within 2–3 hours works equally well for many people.
Mistake: Ignoring carbohydrates after long or repeated sessions.
- Reality: For sessions that significantly deplete glycogen, combining carbs with protein enhances recovery quality and speed.
Myth: Plant protein can't support muscle growth.
- Reality: Properly dosed and combined plant proteins can support equal gains. Adjust quantity and include leucine-rich sources when possible.
Avoiding these misinterpretations simplifies planning and improves outcomes.
Adjusting Timing for Multiple Daily Sessions and Competitive Schedules
Athletes who train multiple times per day or compete frequently need faster recovery strategies. Priorities shift as follows:
- Between sessions (short interval, <8 hours): prioritize rapid carbohydrate repletion (1.0–1.2 g/kg/hour initially) with 20–40 g protein to maximize glycogen re-synthesis and begin repair.
- Immediate recovery (within 30–60 minutes): easily digestible carbs + protein (liquid form often easiest).
- Full recovery meal within 2–3 hours: substantial protein and carbohydrate to rebuild and refuel.
Example: A soccer player with morning and evening practices:
- Post-morning session: carbohydrate-electrolyte drink + whey (20–25 g), light meal within 1–2 hours with 30–40 g protein.
- Pre-evening session: balanced meal 2–3 hours before second practice to top off glycogen and provide amino acids.
Competition day: prioritize timing to manage energy for performance rather than hypertrophy. Rapid glycogen support and hydration outweigh long-term muscle-building priorities during competitions.
Supplements and Practical Considerations
Supplements can simplify implementation but are not mandatory.
Whey protein:
- Advantages: high leucine, rapid absorption, convenient.
- Use case: fasted training, between meals, or when whole food is impractical.
Casein:
- Advantages: slow release, useful at bedtime.
- Use case: night-time or long fasts.
Protein blends and fortified plant proteins:
- Advantages: complement amino acid profiles.
- Use case: vegans and those preferring plant-based options.
Creatine:
- Supports strength and muscle mass gains when combined with adequate protein and training.
- Not directly tied to immediate post-exercise protein timing but integral for long-term adaptation.
BCAAs:
- Limited benefit if a complete protein source is available; when whole protein is inadequate or absent, they may reduce perceived soreness but do not replace full-protein feeding.
Real-world cost-benefit: whole foods deliver extra nutrients and satiety; use powders for convenience or specific timing needs rather than as the sole strategy.
Case Studies: Applying Principles to Real Athletes
Case 1: The morning fasted lifter (35-year-old, 85 kg)
- Goal: hypertrophy
- Current habits: fasted cardio at 6:00 a.m., gym at 7:00 a.m., no breakfast before training.
- Plan:
- Immediate post-workout: whey shake with 30 g protein + 1 banana.
- Breakfast within 60–90 minutes: omelet with 3 eggs + egg whites + whole-grain toast.
- Daily target: 1.8 g/kg → 153 g/day split across four meals.
- Outcome expectation: reduced morning protein breakdown, improved recovery and energy, gains in lean mass when paired with progressive overload.
Case 2: Triathlete with double training day (28-year-old, 70 kg)
- Goal: performance and recovery between sessions
- Plan:
- Post-morning long ride: 60–80 g carbs + 20–25 g protein immediately (recovery drink), full meal within 90 minutes (30–40 g protein).
- Pre-evening session: snack with 20–30 g carbs and small protein source to ensure energy without gastrointestinal distress.
- Outcome expectation: faster glycogen repletion and sustained performance across sessions.
Case 3: Older adult new to resistance training (65-year-old, 70 kg)
- Goal: preserve muscle, increase functional strength
- Plan:
- Protein target: closer to 1.6–2.0 g/kg (112–140 g/day).
- Per-meal protein: 0.4–0.45 g/kg (28–32 g), with higher leucine foods (dairy, eggs, lean meat).
- Post-workout: solid meal within 60 minutes containing 30 g protein and carbs to support recovery.
- Outcome expectation: improved gains due to larger per-meal protein doses countering anabolic resistance.
These cases demonstrate how timing principles adapt to realistic needs and constraints.
Implementing a Simple, Sustainable Routine
For most recreational lifters and athletes, a few rules produce the biggest benefits with minimal complexity:
- Determine your daily protein target (1.6–2.2 g/kg). Use body weight and training goals to choose a point in that range.
- Divide intake into 3–5 feedings that deliver roughly 0.3–0.45 g/kg per meal.
- If you train fasted or with high volume/intensity, prioritize a protein-containing snack within 30–60 minutes of finishing.
- Otherwise, aim to consume a protein-rich meal within 2–3 hours of training.
- Pair carbohydrates with protein when sessions deplete glycogen significantly or when multiple sessions occur within the same day.
- Monitor recovery, performance, and body composition; adjust per individual response.
Simplicity increases adherence. A routine of a protein-rich shake or meal after tough sessions and consistent daily protein distribution covers most needs.
Troubleshooting: When Gains Stall
If progress stalls despite consistent training and apparent adequate intake, examine these variables:
- Underestimated calorie or protein needs: Track intake accurately for several days to verify.
- Inconsistent feeding: Long gaps without protein could blunt cumulative MPS stimulus.
- Overtraining or insufficient recovery: Adjust training volume and emphasize sleep.
- Quality of protein: Ensure per-meal leucine thresholds and overall amino acid completeness.
- Timing relative to sessions: For multiple daily sessions, move to earlier, more carbohydrate-heavy post-session feeding.
A systematic reassessment—tracking training, nutrition, sleep, and stress—reveals the limiting factor.
Ethical and Practical Considerations for Athletes
Competitive athletes must consider supplement quality and doping rules. Use certified products and consult team nutritionists when elite-level competition is involved. For non-competitive lifters, focus on whole-food sources to meet micronutrient needs while supplementing for convenience if required.
Budget and access shape choices. Economical whole-food options—eggs, canned tuna, legumes, dairy—can meet targets affordably. Protein powders add convenience but are not essential.
Closing Perspective
Protein timing plays a role within a larger system that includes total daily intake, workout design, sleep, and hydration. The strict 30-minute anabolism deadline simplifies a more complex physiology. A flexible approach—prioritizing total protein, distributing intake, and matching timing to training context—produces robust, sustainable results. Use the practical templates and examples above to align feeding with training demands, then monitor outcomes and adjust as training, life, and goals evolve.
FAQ
Q: Do I need a protein shake immediately after every workout? A: No. A shake is convenient and useful when you trained fasted, are short on time, or need rapid amino acid availability. If you ate a recent protein-rich meal (within 1–3 hours) and are not in a glycogen-depleting session, a meal within 2–3 hours is usually sufficient.
Q: How much protein should I eat right after training? A: Aim for 0.3–0.45 g/kg body weight per feeding (about 20–40 g for many adults). This range typically meets the leucine threshold needed to maximize muscle protein synthesis. Adjust upward for older adults or very large athletes.
Q: Is the anabolic window a myth? A: The rigid 30–60 minute window is overstated. Muscles remain sensitive to amino acids for several hours after exercise. The “window” exists but is broader—often around 2–3 hours—unless specific circumstances (fasting, very long workouts, multiple daily sessions) call for earlier feeding.
Q: What if I'm training twice a day—what should I do between sessions? A: Prioritize rapid carbohydrate repletion (1.0–1.2 g/kg/hour initially) combined with 20–40 g of protein immediately after the first session, then follow with a substantial meal within 1–2 hours. Liquids can be easier to consume between sessions.
Q: Are plant proteins adequate for post-workout? A: Yes, when dosed appropriately and combined to provide a complete amino acid profile. Vegans may need larger portions or blends (e.g., pea+rice) to reach leucine targets. Fortified plant proteins and mixed meals simplify meeting requirements.
Q: Should older adults eat more protein post-workout? A: Older adults have anabolic resistance and typically benefit from higher per-meal protein (approaching 0.4–0.45 g/kg per meal) and higher leucine content to elicit maximal MPS. Post-workout timing within 1 hour is often advisable.
Q: How important are carbohydrates post-exercise? A: Carbohydrates are critical when training depletes glycogen significantly (long endurance sessions, multiple daily sessions, or rapid turnaround between efforts). For single resistance sessions focusing on hypertrophy, carbohydrates are helpful but not as critical as overall daily intake.
Q: Can I rely solely on whole foods for post-workout recovery? A: Absolutely. Whole foods provide protein, carbohydrates, and micronutrients. Use shakes when convenience or digestion is an issue. Combine whole foods with timing strategies that suit your schedule.
Q: How long until I see results after changing timing strategies? A: Improvements in recovery and performance may appear within days; meaningful changes in body composition typically take 6–12 weeks of consistent training and nutrition adjustments. Track performance and recovery as immediate feedback.
Q: Is there an upper limit to per-meal protein for MPS? A: MPS plateaus at a certain dose for a given individual (often around 20–40 g), but higher intakes still contribute to whole-body protein balance and satiety. Spread intake across meals to maximize repeated MPS stimulation.
Q: What should I do if I have limited time to eat after a workout? A: Use a quick protein source (shake, yogurt, canned tuna, boiled eggs) with a carbohydrate source (fruit, bread, oats) if glycogen replenishment is a priority. Follow with a full meal within 1–2 hours.
Q: Will more frequent protein feedings accelerate muscle growth? A: Even distribution of protein across the day stimulates MPS multiple times and supports net gains better than a single large protein meal. Frequency should match lifestyle and preference to ensure adherence.
Q: Any special considerations for weight loss phases? A: Maintain higher protein (toward 2.2 g/kg) to preserve lean mass while in a calorie deficit, and continue resistance training. Distribute protein evenly and include a post-workout protein-containing meal to support recovery.
Q: How should I time protein if my workout ends late at night? A: Consume a recovery meal that provides both immediate and slower-digesting protein (e.g., whey plus casein or whole food with dairy). Casein—found in cottage cheese or casein supplements—helps supply amino acids overnight.
Q: Are BCAAs useful after workouts if I can't eat protein? A: BCAAs may reduce perceived soreness in some settings but cannot replace full-protein feeding. If a full protein source is unavailable, a complete essential amino acid source is more effective than isolated BCAAs.
Q: How does sleep quality affect the need for post-workout protein? A: Poor sleep impairs recovery and amplifies the importance of meeting protein targets. Prioritize sleep and ensure adequate protein distribution to counterbalance nights of reduced rest.
If you have a specific training schedule, body weight, or dietary preference, share details and a tailored post-workout protocol can be provided.