Episodios

  • Fast Reps vs Slow Reps: What Science Says About Speed of Movement

    Fast Reps vs Slow Reps: What Science Says About Speed of Movement
    Jan 27 2026

    Fast reps vs slow reps: which one builds strength without raising injury risk? In this final installment of the Principles of Exercise Design Series, Amy Hudson and Dr. James Fisher break down one of the most misunderstood topics in training: speed of movement. They unpack what really matters when it comes to fast reps vs slow reps, why intent is more important than rushing the weight, and how smart tempo choices can improve strength without increasing injury risk. Tune in to hear how rethinking speed of movement can completely change the way you train.

    • Amy and Dr. Fisher explain the mechanics of speed of movement in each phase of a lift. The concentric phase is when the muscle shortens and moves the weight away from the body. The eccentric phase is the controlled return, when the muscle lengthens as the weight comes back.
    • Dr. Fisher explains why speed of movement is often misunderstood. Most people can't accurately tell how fast they're moving during normal exercises. That's why they rely more on tempo and control.
    • Dr. Fisher reveals how isokinetic Exobotics devices measure exact distance and exact velocity throughout the lift.
    • Amy and Dr. Fisher explain why moving fast is not required to produce power. The body responds to effort and tension, not reckless speed. This is a key shift many people miss when training without a personal trainer.
    • Dr. Fisher covers what the research really says about rep speed and muscle growth. Studies show no difference in hypertrophy whether reps are performed quickly or slowly. That finding challenges a lot of outdated gym myths.
    • Dr. Fisher reveals why slower lifting can be the smarter option for most people. You still get the same strength, muscle, and health benefits. The difference is reduced stress on joints and connective tissue.
    • Learn how resistance training supports overall health beyond just muscle size. Benefits like myokine release, metabolism, and energy expenditure occur regardless of rep speed. This reinforces why control matters more than rushing reps.
    • Why resistance training should never increase injury risk. Amy emphasizes that exercise is meant to improve health, not compromise it. If training causes injury, it's moving in the wrong direction.
    • Amy explains why exercise should always leave you more capable than before. Training should enhance function, not reduce it.
    • Dr. Fisher explains how speed of movement can vary depending on the exercise being performed. Different movements may call for different tempos to maintain tension.
    • Amy explains how personal trainers guide clients using clear tempo prescriptions. A coach can say four seconds up, six seconds down, and explain exactly why. That clarity improves safety, effectiveness, and motivation in strength training sessions.

    Mentioned in This Episode:

    The Exercise Coach - Get 2 Free Sessions!

    Submit your questions at StrengthChangesEverything.com

    This podcast and blog are provided to you for entertainment and informational purposes only. By accessing either, you agree that neither constitute medical advice nor should they be substituted for professional medical advice or care. Use of this podcast or blog to treat any medical condition is strictly prohibited. Consult your physician for any medical condition you may be having. In no event will any podcast or blog hosts, guests, or contributors, Exercise Coach USA, LLC, Gymbot LLC, any subsidiaries or affiliates of same, or any of their respective directors, officers, employees, or agents, be responsible for any injury, loss, or damage to you or others due to any podcast or blog content.
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    20 m
  • Concentrated Cardio: The Benefits of HIIT and ReHIIT Explained

    Concentrated Cardio: The Benefits of HIIT and ReHIIT Explained
    Jan 20 2026
    Most workouts fail not because people are lazy, but because effort is misused. Amy Hudson and Dr. James Fisher continue the series on the principles of exercise design. In this episode, they cover concentrated cardio and why short, high-effort intervals create bigger physiological changes than long, steady workouts. Tune in to hear how brief bursts of intensity improve cardiovascular fitness, raise metabolic rate, enhance insulin sensitivity, increase muscle blood flow, and make everyday tasks feel easier, all while taking far less time than traditional cardio. Amy and Dr. Fisher discuss concentrated cardio and why it matters. You will learn exactly what concentrated cardio is, what it looks like in real training, and why it pairs so well with strength work.Dr. Fisher reveals the defining feature that separates concentrated cardio from other workouts. These are brief intervals above seventy five percent of maximal power or very close to all-out effort. The recovery periods are just as important because they allow you to hit that high level again.Why steady state cardio feels different from concentrated cardio. One approach keeps the same effort the whole time, while the other alternates between hard sprints and slowing down. Dr. Fisher covers why the benefits of concentrated cardio go far beyond just getting tired. Your VO2 max improves, your resting metabolic rate increases, and insulin sensitivity gets better. This means better oxygen use, more calories burned at rest, and real support for metabolic health.Amy shares why working with a personal trainer can change how you approach concentrated cardio. A good personal trainer helps you find the right intensity without guessing or overdoing it. That guidance builds confidence, keeps you safe, and makes every hard effort count.Learn how everyday life starts to feel easier when you train this way. Tasks like running up a short flight of stairs stop feeling overwhelming. You raise the ceiling of what your body believes is hard work by briefly pushing into discomfort on purpose.Dr. Fisher reveals how concentrated cardio disrupts homeostasis. A single thirty-second sprint can cut intramuscular ATP levels by about half. That level of energy depletion simply does not happen with other forms of exercise.Dr. Fisher reveals a surprising effect on blood flow after concentrated cardio. Blood flow to muscles can be up to one hundred times higher than at rest or after traditional exercise. This sets the stage for faster recovery and bigger physiological change.Learn why more blood flow to muscle tissue is important. It helps clear metabolic byproducts while delivering antioxidants and nutrients that drive adaptation. Over time, this improves capillarization and makes oxygen transfer into muscles more efficient.Dr. Fisher covers the difference between aerobic and anaerobic effort. When you stay aerobic, your body does only what it needs to get through the task. That bare minimum response limits how much progress you can make.With anaerobic exercises, short bursts of very high effort create stress your body must adapt to. You cannot hold that intensity for long, which is exactly why it works.Dr. Fisher reveals how muscle fiber recruitment changes with different workouts. Long steady runs mostly use type one fibers. Short, intense intervals recruit type two fibers, which are the ones you want to preserve as you age.Amy and Dr. Fisher cover the practical rule that simplifies training decisions. You can work long, or you can work hard, but not both. Twenty seconds of true effort creates more adaptation than a full minute of easier work.Dr. Fisher talks about common fears about working at high intensity. Research shows this approach can be safe and effective even for people with conditions like diabetes, heart failure, and coronary artery disease. With proper guidance and personal training, intensity is not something to fear.Learn why tracking heart rate can be a useful feedback tool when training. It helps you understand effort and recovery rather than guessing. Used correctly, it builds confidence instead of anxiety.Dr. Fisher reveals a simple sign that your fitness is improving. If your heart rate drops quickly after exercise, that is a strong indicator of better conditioning. Recovery speed often matters more than peak numbers. Mentioned in This Episode: The Exercise Coach - Get 2 Free Sessions! Submit your questions at StrengthChangesEverything.com This podcast and blog are provided to you for entertainment and informational purposes only. By accessing either, you agree that neither constitute medical advice nor should they be substituted for professional medical advice or care. Use of this podcast or blog to treat any medical condition is strictly prohibited. Consult your physician for any medical condition you may be having. In no event will any podcast or blog hosts, guests, or contributors, Exercise Coach USA, LLC, Gymbot LLC, any subsidiaries or ...
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    29 m
  • The Truth About a Full Body Exercise Routine: Why High Effort is Everything

    The Truth About a Full Body Exercise Routine: Why High Effort is Everything
    Jan 13 2026

    Are your workouts really making a difference, or are you just going through the motions?

    Amy Hudson and Dr. James Fisher continue the series on the principles of exercise design. In this episode, they cover the pillars of a whole effort exercise session and explain how muscle fatigue, eccentric activation, and glycogen depletion work together to build strength, improve metabolism, and deliver lasting results. Tune in to hear practical tips on how to make sure every session counts and gets you closer to your fitness goals.

    • Amy starts by explaining the three major components of an effective strength training workout: muscle fatigue, eccentric activation, and glycogen depletion.
    • Learn why not every workout delivers the intended results, even if it feels hard.
    • Dr. Fisher highlights what a whole effort exercise actually is. It means every muscle is worked fully and to real fatigue. From a metabolic standpoint, that's what boosts calorie use and supports long-term health after the workout ends.
    • How to spot the difference between moving your body and truly training it. Amy points out that walking, yoga, and similar activities can be great, but they don't always demand your full effort. Whole effort exercise is about getting the biggest return on the time you put in.
    • Dr. Fisher explains that your muscles are made up of slow-twitch and fast-twitch fibers. As we age, it's the fast-twitch fibers we lose first, even though they're the ones most capable of growing stronger. If staying strong matters to you, these are the fibers you want to protect.
    • Dr. Fisher highlights a common misunderstanding about fatigue. Cardio exercises like running or cycling can feel exhausting, but they usually last too long and stay too aerobic. That means you never tap into the fast-twitch fibers that drive strength and muscle growth.
    • Why you need to rethink muscle fatigue. Dr. Fisher explains that real fatigue means recruiting every muscle fiber. Strength training forces your body to work through the full sequence until no muscle is left unused.
    • Dr. Fisher explains why muscle fatigue matters as we get older. Your body naturally shifts into a "what don't we need anymore" mode over time. If you don't regularly use certain muscle fibers, your body simply lets them go.
    • Dr. Fisher highlights what eccentric muscle activation really means. Lifting the weight is only half the work, lowering it is where most muscle fibers are being challenged.
    • How to get more out of every rep you do. Dr. Fisher emphasizes working harder on the lowering phase than the lifting phase. That's where deeper muscle recruitment actually happens.
    • How to train for better metabolism and long-term health. Amy and Dr. Fisher show that glycogen depletion only happens when effort is high enough to recruit fast-twitch fibers.
    • If your goal is fat loss, strength, or aging well, you need to work harder and activate your type two muscle fibers.
    • How to know if personal training is actually working for you. A good personal trainer isn't just counting reps or filling time; they're guiding you toward true muscle fatigue, controlled eccentrics, and real effort.
    • If you leave every session feeling "busy" but not challenged, you're probably not working hard enough.

    Mentioned in This Episode:

    The Exercise Coach - Get 2 Free Sessions!

    Submit your questions at StrengthChangesEverything.com

    This podcast and blog are provided to you for entertainment and informational purposes only. By accessing either, you agree that neither constitute medical advice nor should they be substituted for professional medical advice or care. Use of this podcast or blog to treat any medical condition is strictly prohibited. Consult your physician for any medical condition you may be having. In no event will any podcast or blog hosts, guests, or contributors, Exercise Coach USA, LLC, Gymbot LLC, any subsidiaries or affiliates of same, or any of their respective directors, officers, employees, or agents, be responsible for any injury, loss, or damage to you or others due to any podcast or blog content.
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    18 m
  • 5 Mindset Shifts to Crush Your Fitness Resolutions in 2026

    5 Mindset Shifts to Crush Your Fitness Resolutions in 2026
    Jan 6 2026

    Before you set another fitness goal this year, there's something you need to rethink.

    Amy Hudson and Dr. James Fisher are here to wish you a happy new year and kick off 2026 with a fresh, grounded perspective on health and exercise. In this episode, they cover five mindset shifts to help you enjoy workouts, focus on real results, and create habits that actually last. If you're ready to let go of what hasn't worked and start 2026 with clarity, confidence, and a healthier relationship with movement, this episode is your invitation to do exactly that. Make 2026 your healthiest year yet!

    • Amy shares why New Year's exercise resolutions often feel motivating at first and discouraging by February. Many goals are built around outcomes instead of behaviors. This episode helps you rethink your approach so your plan actually fits real life.
    • Shift #1: Process versus outcome. According to Dr. Fisher, goals don't have to be about a number or a finish line. They can be about committing to the actions you repeat each week.
    • Amy explains why changing the process is what creates long-term success. Daily habits compound in ways one perfect result never can. People who make progress are the ones who keep doing the basics consistently.
    • Shift #2: Exercise as enjoyment, not punishment. Amy shares why enjoying your workouts makes consistency easier. When exercise feels rewarding instead of miserable, you're far more likely to stick with it.
    • Shift #3: Fat loss versus weight loss. Dr. Fisher and Amy explain why losing fat and maintaining muscle is the real goal. Strength training supports fat loss while protecting muscle. It's one of the most important investments you can make in your long-term health.
    • Dr. Fisher explains why yo-yo dieting backfires. Calorie restriction often leads to muscle loss and a slower metabolism. When normal eating resumes, weight regain becomes almost inevitable.
    • Amy shares a powerful reframe if weight loss has been your goal every January. Instead of trying to make yourself smaller, think about rebuilding yourself from the inside out. That shift changes how you approach food, exercise, and patience.
    • Shift #4: Quality versus quantity. More workouts or longer sessions don't always mean better results. The right exercises, performed safely and with proper form, often deliver more with less time.
    • Amy shares a personal story about feeling stuck and overwhelmed by exercise expectations. She believed change required hours in the gym and deep expertise. Discovering the power of short, high-quality strength sessions was a huge relief.
    • Amy explains how learning proper exercise selection and technique changed everything. Once she stopped guessing and started working with a personal trainer, results followed. It finally felt sustainable.
    • Dr. Fisher explains Shift #5: Active versus passive exercise. Simply moving through exercises isn't the goal. Being mentally engaged and intentional with each rep is where progress happens.
    • Dr. Fisher explains why working with a personal trainer makes all of these shifts easier. A coach helps you stay engaged, cue the right muscles, and train with purpose instead of guesswork. This guidance turns exercise into something you enjoy, not a chore you endure.

    Mentioned in This Episode:

    The Exercise Coach - Get 2 Free Sessions!

    Submit your questions at StrengthChangesEverything.com

    This podcast and blog are provided to you for entertainment and informational purposes only. By accessing either, you agree that neither constitute medical advice nor should they be substituted for professional medical advice or care. Use of this podcast or blog to treat any medical condition is strictly prohibited. Consult your physician for any medical condition you may be having. In no event will any podcast or blog hosts, guests, or contributors, Exercise Coach USA, LLC, Gymbot LLC, any subsidiaries or affiliates of same, or any of their respective directors, officers, employees, or agents, be responsible for any injury, loss, or damage to you or others due to any podcast or blog content.
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    21 m
  • Benefits to Strength Training: Top 5 Episodes of the Year Reviewed

    Benefits to Strength Training: Top 5 Episodes of the Year Reviewed
    Dec 30 2025
    What do the most listened-to strength episodes of 2025 reveal about how you train? Amy Hudson and Dr. James Fisher look back at the most-watched and downloaded episodes of 2025. In this episode, they break down the top 5 most downloaded conversations, reveal their favorite moments from the season, and revisit the insights that resonated most with listeners. They cover why strength training works for everyone, how to lose fat without sacrificing muscle, and why safe, sustainable workouts are the real long-term investment. Amy starts by revealing the most downloaded and watched episodes of the year. She explains why those topics mattered and why so many people kept coming back to them. Amy and Dr. Fisher go through the Top 5 most listened-to episodes this year. They talk about what made each one resonate so strongly with listeners and what people really care about when it comes to strength training.Learn why the most popular episode focused on losing fat without losing muscle. Amy and Dr. Fisher revisit what Dr. Wayne Westcott shared and why it struck a chord. If fat loss is a goal for you, this explains why strength training matters so much.Amy and Dr. Fisher explain what happens when you lose weight without strength training. They share that up to about 50% of weight loss can be muscle if resistance training isn't included. You'll see why working with a personal trainer can make a big difference here.Learn how strength training supports brain health. Dr. Fisher talks about improved memory, processing speed, mood, and confidence. He also explains how it can reduce anxiety and support long-term brain health.Dr. Fisher reveals his Top 5 episodes of the year. His favorite focuses on the six essential elements of an effective strength training program. The biggest takeaway is that workouts should be safe, sustainable, and realistic.Why Dr. Fisher sees strength training as an investment that pays dividends now and later in life.Dr. Fisher shares a powerful quote from his research. No medication improves fitness, function, or frailty the way exercise does. It's a reminder of why strength training remains such a critical tool for health.Learn the immediate benefits of strength training. Dr. Fisher explains that training is not all about long-term gains like building muscle or strength. You often feel better mentally and physically right after a workout. Amy shares her top moments from the season. She talks about what happens when you stop strength training and how sarcopenia develops over time. Why Amy compares strength training to brushing your teeth. It's not about motivation, it's about habit. This mindset shift can change how you approach exercise completely.Amy explains why guidance matters when it comes to what you should and shouldn't do in the gym. Understanding what's possible for your body builds confidence. A personal trainer helps provide that clarity and safety.Amy and Dr. Fisher discuss protein and why it's so important for strength training.Amy covers the role of stretching in muscle building. Tightness and restrictions can limit how well a muscle strengthens. She also shares why coach-assisted stretching is becoming such a valuable addition to training. Mentioned in This Episode: The Exercise Coach - Get 2 Free Sessions! Submit your questions at StrengthChangesEverything.com The Top 5 Episodes of 2025 : 1 - How to Lose Fat Without Muscle Loss: Science-Backed Solutions with Dr. Wayne Westcott (season 2, episode 5) 2 - Can You Reverse Osteoporosis? Strength Training for Bone Mineral Density (season 2, episode 7) 3 - Why Strength Training Works for Everyone — No Exceptions (season 2, episode 8) 4 - Strength Training: The Untold Benefits of Exercise for the Brain (season 2, episode 10) 5 - NEW SEASON! The Secret to Feeling Decades Younger; Welcoming a New Co-host (season 2, episode 1) This podcast and blog are provided to you for entertainment and informational purposes only. By accessing either, you agree that neither constitute medical advice nor should they be substituted for professional medical advice or care. Use of this podcast or blog to treat any medical condition is strictly prohibited. Consult your physician for any medical condition you may be having. In no event will any podcast or blog hosts, guests, or contributors, Exercise Coach USA, LLC, Gymbot LLC, any subsidiaries or affiliates of same, or any of their respective directors, officers, employees, or agents, be responsible for any injury, loss, or damage to you or others due to any podcast or blog content.
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    29 m
  • The Science and Application of Exercise Choice and Exercise Order

    The Science and Application of Exercise Choice and Exercise Order
    Dec 23 2025

    Does the order of your exercises actually matter? Amy Hudson and Dr. James Fisher continue the Series on the Principles of Exercise Design. In this episode, they explain how to structure your exercises for maximum strength and muscle growth. They cover why multi-joint movements deliver the biggest results and how to create a routine that is safe, efficient, and effective for real-world performance. Whether you want to maximize gains, avoid injury, or finally feel confident in your workouts, this episode gives you the insights to build routines that actually work.

    • Dr. Fisher starts by explaining why the order of your exercise routines doesn't matter. Whether you pre-exhaust, post-exhaust, or mix joint movements, the long-term benefits stay exactly the same.
    • That means you can stop stressing about the "perfect sequence" and finally trust that hard work, not order, is what transforms your body.
    • Why do you only see a handful of machines when you walk into an Exercise Coach studio? Because the goal isn't to overwhelm you, it's to give you the safest, most effective movements that actually work.
    • Dr. Fisher explains why he loves the Exercise Coach approach. Every workout trims the fat, no wasted time, no risky exercises, no wondering if you're doing something that might hurt you tomorrow. You walk in knowing everything you do is purposely chosen to keep you safe and move you forward.
    • Amy shares why the best exercises aren't flashy; they're smart, safe, effective, and efficient.
    • How to stop obsessing over the "right" order of exercises. Dr. Fisher makes it clear that the human body adapts beautifully as long as you show up and train with intention. And that frees you from the pressure of perfection so you can focus on consistency instead of overthinking.
    • How a personal trainer can help you stop second-guessing every machine and movement. Amy and Dr. Fisher agree that, with expert eyes guiding you, you no longer worry about bad form, wasted effort, or doing something unsafe.
    • Why Dr. Fisher personally prefers starting with multi-joint exercises. They're demanding, they ask more of you, and doing them early just feels better. However, research says you'll get the same benefits no matter what you start with.
    • Dr. Fisher explains the biggest benefit of multi-joint exercises.
    • Learn the application of multi-joint exercises in the real world. Training movements instead of isolated muscles prepares you for lifting groceries, climbing stairs, and staying active as you age.
    • How working with a personal trainer simplifies your entire fitness journey. They help you choose the safest exercises, track your progress, and remind you that your body can do more than you think. That support system turns workouts from something you dread into something you finally enjoy.

    Mentioned in This Episode:

    The Exercise Coach - Get 2 Free Sessions!

    Submit your questions at StrengthChangesEverything.com

    This podcast and blog are provided to you for entertainment and informational purposes only. By accessing either, you agree that neither constitute medical advice nor should they be substituted for professional medical advice or care. Use of this podcast or blog to treat any medical condition is strictly prohibited. Consult your physician for any medical condition you may be having. In no event will any podcast or blog hosts, guests, or contributors, Exercise Coach USA, LLC, Gymbot LLC, any subsidiaries or affiliates of same, or any of their respective directors, officers, employees, or agents, be responsible for any injury, loss, or damage to you or others due to any podcast or blog content.
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    18 m
  • Workout and Recovery Secrets That Actually Work

    Workout and Recovery Secrets That Actually Work
    Dec 16 2025
    Are you sabotaging your strength gains without realizing it? Amy Hudson and Dr. James Fisher continue the Series on the Principles of Exercise Design. In today's episode, they break down the concept of inroading, explain how every workout triggers both fatigue and adaptation, and reveal why recovery is just as important as effort. They cover how to maximize strength gains, avoid plateaus, optimize training frequency, and use your body's natural recovery cycle to build lasting progress. Dr. Fisher explains how inroading works. It's the immediate fatigue you feel when a muscle is pushed to true effort. That short-term drop in performance is exactly what triggers long-term adaptation.Dr. Fisher highlights why you always feel weaker at the end of a workout. The workout itself isn't where strength appears; it's where the demand for strength is created. Your body waits until you're resting to build the improvements that lead to more strength.Amy reveals why inroading is such an important part of strength training. It lets you reach the deeper layers of muscle fibers that light, easy reps never touch. And once you can reach those fibers consistently, your long-term progress becomes far more predictable.Dr. Fisher explains the two phases every workout goes through. First, you feel the immediate drop in energy and strength, and that part happens instantly. The second part, the repair phase, is quiet, slow, and where all the positive changes take place.Dr. Fisher highlights the problem with insufficient recovery.Dr. Fisher explains how strength gains come from a simple pattern. You give your body a clear challenge, then you get out of the way long enough for it to respond. When that cycle isn't interrupted, your progress becomes steady and consistent.Amy covers how long most people need to recover from a hard session. For many, that window sits somewhere between 24 and 48 hours, especially after real effort. That's why back-to-back strength days tend to do more harm than good.What long-term research says about training frequency. Two workouts a week hits the sweet spot where your body gets enough stimulus but still has room to recover. You can grow with once-a-week sessions too, but going past two rarely adds any new benefit.Dr. Fisher explains how outside stress affects your progress in the gym. Poor sleep, emotional strain, or a stressful week at work drains the same energy your workouts require. Amy covers why the best personal trainers pay close attention to recovery when designing a strength plan. They know the workout is only half the story, and the real improvements show up when your body has time to adapt. Dr. Fisher highlights why consistency wins out over intensity. Showing up twice a week across months and years outperforms short bursts of extreme effort followed by burnout.Amy explains what actually happens after a workout ends. The session challenges your muscles, but the growth happens later, when you're resting and not even thinking about the gym. If recovery is high-quality, every return session should feel just a bit stronger than the last.Dr. Fisher covers why extra sets aren't the secret to growth. Once every muscle fiber has been recruited, more work doesn't add more stimulus; it only adds more fatigue. And that extra fatigue delays the recovery you depend on for strength gains.Dr. Fisher explains why doing more exercise isn't the same as doing better exercise. According to Dr. Fisher, making up for missed workouts is a trap. Doubling your workload because you skipped a session only leaves you sore, tired, and drained for days afterward.Learn why simple, focused workouts beat complicated ones. A handful of well-chosen exercises taken to meaningful effort provide everything your body needs. Once that stimulus is delivered, more volume just becomes noise.Amy covers the repeating cycle behind effective strength training. You challenge the muscle, you give it space to rebuild, and then you return slightly more capable than before. Dr. Fisher explains how a good personal trainer will use inroading to push you just enough for growth. It's not about doing more work than necessary, but hitting the right intensity so your muscles are challenged. Then, with proper recovery, each session builds on the last, and progress becomes consistent.Dr. Fisher explains supercompensation in a way that actually makes sense. A hard workout drives your performance slightly below normal, but recovery lifts you above that normal line once the repair is done. And that rise above baseline is where the gains hide.Dr. Fisher highlights what it really means to train smarter. You put in the right amount of effort, protect your recovery, and let those small improvements stack up. Over time, that balance takes you much further than grinding endlessly in the gym. Mentioned in This Episode: The Exercise Coach - Get 2 Free Sessions! Submit your questions at StrengthChangesEverything.com This podcast and blog are ...
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    24 m
  • Maximize Your Gains with Proper Muscle Fiber Recruitment

    Maximize Your Gains with Proper Muscle Fiber Recruitment
    Dec 9 2025
    Are you activating all the muscle fibers in your workout, or are you leaving gains on the table? Amy Hudson and Dr. James Fisher continue their deep dive into the Principles of Exercise Design. In today's episode, they break down muscle fiber recruitment; why it matters, how your body decides which fibers to use, and what that means for your strength. They cover the Size Principle, the importance of continuous muscular loading, and how to structure your workout to reach the fibers that actually drive growth and performance. Dr. Fisher explains the All-or-Nothing theory and why your muscles are either fully "on" or fully "off." He breaks down how your body only recruits the exact fibers needed for the task in front of you. Knowing this helps you understand why you need higher effort to see real strength gains.Dr. Fisher explains that Type 1 fibers are cheap to use, so your body loves using them first. They handle endurance but don't give you the strength you want. He shows how pushing harder in the gym is what finally taps into Type 2 fibers.Learn why Type 2 fibers are powerful but expensive for your body to use. They fatigue quickly, so your system avoids them unless you give a strong stimulus. But once you activate them, that's when real growth and strength improvements happen.Dr. Fisher explains how your nervous system recruits muscle fibers from smallest to largest. It's your body's way of protecting energy while still meeting the force demands of your workout.Amy highlights how the body is constantly trying to conserve energy. That means it avoids using high-cost muscle fibers unless absolutely necessary.Dr. Fisher shares why multiple-set training often fails to push you to true effort. When you simply count reps, you usually stop far short of full muscle recruitment. So, you're leaving huge results on the table without even realizing it.Amy covers why resting between sets resets the whole muscle recruitment process. Once your Type 1 fibers recover, your body goes right back to using them first. And that makes it harder for you to reach those high-impact Type 2 fibers that drive strength.Amy highlights that if full muscle fiber recruitment is the goal, you don't want to stop and restart the process over and over. Every pause delays that final layer of activation. And that delay means slower strength gains and less efficient workouts.Dr. Fisher covers why eccentric loading is such a game-changer in strength training. We're naturally stronger on the lowering phase, but most equipment doesn't challenge us there. When you finally load that phase properly, you maintain deeper fiber recruitment for longer.Dr. Fisher shares how exerbotics devices keep you working harder during the eccentric phase instead of giving you a break. Amy and Dr. Fisher cover the biggest benefit of working with a personal trainer. With expert guidance and efficient workouts, you can achieve better results more quickly than you might on your own.Dr. Fisher explains why walking and jogging are great for general health but not enough for full muscle recruitment.Amy highlights that losing Type 2 fibers is the real reason people feel weaker, less balanced, and less stable over time. These fibers are the ones responsible for power and functional strength.Amy covers the importance of eccentric training and how it helps you get more out of every rep. When you challenge the lowering phase, you keep more fibers active for longer. And that translates into faster progress with less time spent working out.Dr. Fisher explains that strength training only works when you recruit all available fibers. Multi-set training often delays this because you keep letting fibers rest between rounds. Dr. Fisher explains how a personal trainer can guide you to hit the right muscle fibers every time. Most people lift without fully recruiting the fibers that actually build strength and shape. With the right guidance, you maximize every rep for faster, noticeable results.Amy highlights that your main job in a workout is simple. Recruit the fibers. When you keep them loaded continuously at the right effort, everything changes. Mentioned in This Episode: The Exercise Coach - Get 2 Free Sessions! Submit your questions at StrengthChangesEverything.com This podcast and blog are provided to you for entertainment and informational purposes only. By accessing either, you agree that neither constitute medical advice nor should they be substituted for professional medical advice or care. Use of this podcast or blog to treat any medical condition is strictly prohibited. Consult your physician for any medical condition you may be having. In no event will any podcast or blog hosts, guests, or contributors, Exercise Coach USA, LLC, Gymbot LLC, any subsidiaries or affiliates of same, or any of their respective directors, officers, employees, or agents, be responsible for any injury, loss, or damage to you or others due to any podcast or blog content.
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    22 m