⏱️ Interval Training

Science-backed guides to high-intensity training methods that maximize fitness gains in minimal time. These books break down the physiology of intervals and offer structured programs for every fitness level.

The One-Minute Workout

by Martin Gibala • 2017

Long cardio may be unnecessary. The lab data behind the shortest effective workout.

4.06

854

🔬 Exercise Science ⚡ Efficient Workouts ⏱️ Short Workouts

The One-Minute Workout 92%

Long cardio may be unnecessary. The lab data behind the shortest effective workout.

by Martin Gibala 2017

4.06

854 ratings

🔬 Exercise Science ⚡ Efficient Workouts ⏱️ Short Workouts

Spartan Warrior Workout

by Dave Randolph • 2010

How to build an action-hero body in 30 days with six exercises and 300 daily reps.

3.85

142

🔄 Circuit Training 🏋️ Functional Fitness 🏋️‍♂️ Compound Lifts

Spartan Warrior Workout 91%

How to build an action-hero body in 30 days with six exercises and 300 daily reps.

by Dave Randolph 2010

3.85

142 ratings

🔄 Circuit Training 🏋️ Functional Fitness 🏋️‍♂️ Compound Lifts

Fast Exercise

by Michael Mosley • 2013

A few hard minutes, three times a week, reshapes the heart and burns fat. The protocol.

3.82

1k+

⚡ Hiit Training ⏱️ Time-Efficient Fitness 💪 Bodyweight Training

Fast Exercise 90%

A few hard minutes, three times a week, reshapes the heart and burns fat. The protocol.

by Michael Mosley 2013

3.82

1k+ ratings

⚡ Hiit Training ⏱️ Time-Efficient Fitness 💪 Bodyweight Training

You Are Your Own Gym

by Mark Lauren • 2010

How to build strength, burn fat, and move better without ever touching a weight.

3.99

4k+

🏋️ Calisthenics 🏃 Functional Fitness 💪 Strength Training

You Are Your Own Gym 90%

How to build strength, burn fat, and move better without ever touching a weight.

by Mark Lauren 2010

3.99

4k+ ratings

🏋️ Calisthenics 🏃 Functional Fitness 💪 Strength Training

Kettlebell - Simple and Sinister

by Pavel Tsatsouline • 2013

One weight, two drills, thirty minutes. The fitness program that strips away every excuse.

4.36

4k+

🏋️ Kettlebell Training 💪 Strength Training ⚡ Minimalist Training

Kettlebell - Simple and Sinister Summary

Kettlebell - Simple and Sinister 90%

One weight, two drills, thirty minutes. The fitness program that strips away every excuse.

by Pavel Tsatsouline 2013

4.36

4k+ ratings

🏋️ Kettlebell Training 💪 Strength Training ⚡ Minimalist Training

Tactical Barbell

by K. Black • 2014

For firefighters, soldiers, and cops: how to deadlift 500 while still finishing the run.

4.52

1k+

🎯 Tactical Fitness 🔄 Concurrent Training 📅 Periodization

Tactical Barbell 89%

For firefighters, soldiers, and cops: how to deadlift 500 while still finishing the run.

by K. Black 2014

4.52

1k+ ratings

🎯 Tactical Fitness 🔄 Concurrent Training 📅 Periodization

The Maffetone Method

by Philip Maffetone • 1999

Why training slower makes you faster, and the simple formula that sets your perfect pace.

3.97

535

🏃 Aerobic Base Training ❤️ Heart Rate Training 🔥 Fat-Adapted Training

The Maffetone Method 89%

Why training slower makes you faster, and the simple formula that sets your perfect pace.

by Philip Maffetone 1999

3.97

535 ratings

🏃 Aerobic Base Training ❤️ Heart Rate Training 🔥 Fat-Adapted Training

Ride Your Way Lean

by Selene Yeager • 2010

A bike-based weight loss plan that works: intervals, fueling, and habits, not just steady miles.

3.82

353

🚴 Cycling Training 🍽️ Sports Nutrition 🧬 Metabolic Health

Ride Your Way Lean 89%

A bike-based weight loss plan that works: intervals, fueling, and habits, not just steady miles.

by Selene Yeager 2010

3.82

353 ratings

🚴 Cycling Training 🍽️ Sports Nutrition 🧬 Metabolic Health

7 Weeks to 100 Push-Ups

by Steve Speirs • 2009

100 push-ups without stopping. Seven weeks, three days a week, starting wherever you are right now.

3.62

282

🏋️ Bodyweight Training 🏠 Home Workouts 📈 Progressive Overload

7 Weeks to 100 Push-Ups 89%

100 push-ups without stopping. Seven weeks, three days a week, starting wherever you are right now.

by Steve Speirs 2009

3.62

282 ratings

🏋️ Bodyweight Training 🏠 Home Workouts 📈 Progressive Overload

Complete Calisthenics - The Ultimate Guide To Bodyweight Exercise

by Ashley Kalym • 2014

Your body, a pull-up bar, and the progressions that go from push-up to planche.

4.15

918

🏋️ Bodyweight Training 📈 Exercise Progressions 🤸 Gymnastic Strength

Complete Calisthenics - The Ultimate Guide To Bodyweight Exercise Summary

Complete Calisthenics - The Ultimate Guide To Bodyweight Exercise 89%

Your body, a pull-up bar, and the progressions that go from push-up to planche.

by Ashley Kalym 2014

4.15

918 ratings

🏋️ Bodyweight Training 📈 Exercise Progressions 🤸 Gymnastic Strength

Calisthenics for Beginners

by Matt Schifferle • 2020

No gym, no weights: a bodyweight system that scales from first push-up to full body control.

3.92

201

🏋️ Bodyweight Training 🌱 Beginner Fitness 🦵 Functional Fitness

Calisthenics for Beginners 89%

No gym, no weights: a bodyweight system that scales from first push-up to full body control.

by Matt Schifferle 2020

3.92

201 ratings

🏋️ Bodyweight Training 🌱 Beginner Fitness 🦵 Functional Fitness

How to Build Strong & Lean Bodyweight Muscle

by Anthony Arvanitakis • 2018

A gym-free body is possible: the science of using your own weight to build real, lean mass.

4.28

236

🏋️ Bodyweight Training 🏠 Home Workouts 💪 Muscle Hypertrophy

How to Build Strong & Lean Bodyweight Muscle Summary

How to Build Strong & Lean Bodyweight Muscle 89%

A gym-free body is possible: the science of using your own weight to build real, lean mass.

by Anthony Arvanitakis 2018

4.28

236 ratings

🏋️ Bodyweight Training 🏠 Home Workouts 💪 Muscle Hypertrophy

Progressive Calisthenics

by John Powers • 2015

A bodyweight system that builds real strength in twenty minutes a day, no gym required.

3.46

138

💪 Bodyweight Training 🏠 Fitness Minimalism 📈 Progressive Overload

Progressive Calisthenics 89%

A bodyweight system that builds real strength in twenty minutes a day, no gym required.

by John Powers 2015

3.46

138 ratings

💪 Bodyweight Training 🏠 Fitness Minimalism 📈 Progressive Overload

Body by Science

by John Little • 2008

The research behind a weekly 12-minute workout that claims to replace hours of cardio.

4.10

3k+

🏋️ Strength Training 🔬 Exercise Science ⚡ High Intensity Training

Body by Science 89%

The research behind a weekly 12-minute workout that claims to replace hours of cardio.

by John Little 2008

4.10

3k+ ratings

🏋️ Strength Training 🔬 Exercise Science ⚡ High Intensity Training

The Triathlete's Training Bible

by Joe Friel • 1998

A complete triathlon training system: how to periodize your year so you peak on race day.

4.17

3k+

🏊 Triathlon Training 🏃 Endurance Sports 📅 Periodized Training

The Triathlete's Training Bible 89%

A complete triathlon training system: how to periodize your year so you peak on race day.

by Joe Friel 1998

4.17

3k+ ratings

🏊 Triathlon Training 🏃 Endurance Sports 📅 Periodized Training

80/20 Running

by Matt Fitzgerald • 2014

Easy miles build fast races. The training formula that cuts 5K times by seven percent.

3.94

7k+

🏃 Endurance Training 📊 Polarized Training 🫁 Aerobic Development

80/20 Running 89%

Easy miles build fast races. The training formula that cuts 5K times by seven percent.

by Matt Fitzgerald 2014

3.94

7k+ ratings

🏃 Endurance Training 📊 Polarized Training 🫁 Aerobic Development

Primal Endurance

by Mark Sisson • 2016

The low-intensity, high-fat method that turns endurance athletes into fat-burning engines.

4.01

989

🏃 Endurance Sports 🔥 Fat Adaptation 🥩 Paleo Diet

Primal Endurance 89%

The low-intensity, high-fat method that turns endurance athletes into fat-burning engines.

by Mark Sisson 2016

4.01

989 ratings

🏃 Endurance Sports 🔥 Fat Adaptation 🥩 Paleo Diet

7 Weeks to 50 Pull-Ups

by Brett Stewart • 2011

Fifty consecutive pull-ups in under two months, even if the word pull-up scares you right now.

3.31

190

🏋️ Calisthenics Training 💪 Upper Body Training 🏠 Home Workouts

7 Weeks to 50 Pull-Ups 89%

Fifty consecutive pull-ups in under two months, even if the word pull-up scares you right now.

by Brett Stewart 2011

3.31

190 ratings

🏋️ Calisthenics Training 💪 Upper Body Training 🏠 Home Workouts

High Performance Rowing

by John McArthur • 1997

The rowing coach's system for speed: what to fix, when to fix it, and the data to prove it.

3.83

🧑‍🏫 Sports Coaching 🏃 Endurance Sports 📅 Periodized Training

High Performance Rowing 89%

The rowing coach's system for speed: what to fix, when to fix it, and the data to prove it.

by John McArthur 1997

3.83

42 ratings

🧑‍🏫 Sports Coaching 🏃 Endurance Sports 📅 Periodized Training

Fitness Independence

by Matt Schifferle • 2016

Most fitness programs sell you things you don't need. The fundamentals that work, on your terms.

4.09

133

🏋️ Fitness Fundamentals 🎯 Fitness Minimalism 🧭 Self-Directed Fitness

Fitness Independence 89%

Most fitness programs sell you things you don't need. The fundamentals that work, on your terms.

by Matt Schifferle 2016

4.09

133 ratings

🏋️ Fitness Fundamentals 🎯 Fitness Minimalism 🧭 Self-Directed Fitness

Better Than Steroids

by Warren Willey • 2006

The natural bodybuilding system that uses food timing and overeating windows to rival steroids.

3.92

237

🥗 Sports Nutrition ⚖️ Body Recomposition ⏰ Meal Timing

Better Than Steroids 89%

The natural bodybuilding system that uses food timing and overeating windows to rival steroids.

by Warren Willey 2006

3.92

237 ratings

🥗 Sports Nutrition ⚖️ Body Recomposition ⏰ Meal Timing

Overcoming Gravity

by Steven Low • 2011

Build gymnastic strength through leverage, not just reps: a system as rigorous as barbell training.

4.46

1k+

🤸 Calisthenics 📈 Progressive Overload 🩹 Injury Prevention

Overcoming Gravity 89%

Build gymnastic strength through leverage, not just reps: a system as rigorous as barbell training.

by Steven Low 2011

4.46

1k+ ratings

🤸 Calisthenics 📈 Progressive Overload 🩹 Injury Prevention

Easy Strength

by Dan John • 2011

Lift heavy without wrecking yourself: a plan for sustainable strength that fits any life.

4.20

689

🏋️ Strength Training 🏅 Sports Performance 🔔 Kettlebell Training

Easy Strength 89%

Lift heavy without wrecking yourself: a plan for sustainable strength that fits any life.

by Dan John 2011

4.20

689 ratings

🏋️ Strength Training 🏅 Sports Performance 🔔 Kettlebell Training

The Naked Warrior

by Pavel Tsatsouline • 2003

Two bodyweight moves, ancient tension secrets, and a practice method that never exhausts you.

4.06

2k+

🏋️ Bodyweight Training 🤸 Calisthenics 🧘 Tension Techniques

The Naked Warrior 89%

Two bodyweight moves, ancient tension secrets, and a practice method that never exhausts you.

by Pavel Tsatsouline 2003

4.06

2k+ ratings

🏋️ Bodyweight Training 🤸 Calisthenics 🧘 Tension Techniques

Wisdom of Mike Mentzer

by John Little • 2005

Gaining muscle by training less often: the method backed by 30-pound gains and four-hour months.

4.28

292

🏋️ Bodybuilding Methodology ⚡ High Intensity Training 🎯 Minimalist Training

Wisdom of Mike Mentzer 89%

Gaining muscle by training less often: the method backed by 30-pound gains and four-hour months.

by John Little 2005

4.28

292 ratings

🏋️ Bodybuilding Methodology ⚡ High Intensity Training 🎯 Minimalist Training

Never Let Go

by Dan John • 2009

Willpower runs out. Four of five workouts are average. A coach’s philosophy that plans for both.

4.26

2k+

🏋️ Strength Training 🎯 Minimalist Training 📅 Daily Discipline

Never Let Go 89%

Willpower runs out. Four of five workouts are average. A coach’s philosophy that plans for both.

by Dan John 2009

4.26

2k+ ratings

🏋️ Strength Training 🎯 Minimalist Training 📅 Daily Discipline

Daniels' Running Formula

by Jack Daniels • 1998

Your race time yields a single number. That number sets every training pace, no guesswork.

4.25

5k+

🏃 Distance Running 🏅 Marathon Training 📅 Training Periodization

Daniels' Running Formula 89%

Your race time yields a single number. That number sets every training pace, no guesswork.

by Jack Daniels 1998

4.25

5k+ ratings

🏃 Distance Running 🏅 Marathon Training 📅 Training Periodization

Tactical Barbell II

by K. Black • 2015

Why strong athletes gas out: the missing aerobic foundation and a structured plan to build it.

4.57

893

🎖️ Military Fitness 🏋️ Strength And Conditioning 🔀 Hybrid Training

Tactical Barbell II 89%

Why strong athletes gas out: the missing aerobic foundation and a structured plan to build it.

by K. Black 2015

4.57

893 ratings

🎖️ Military Fitness 🏋️ Strength And Conditioning 🔀 Hybrid Training

Run Your Butt Off!

by Sarah Lorge Butler • 2011

Walk first, run later: a gradual plan that turns non-athletes into runners while shedding pounds.

3.75

559

🏃 Beginner Running 📉 Exercise And Weight Loss 🚶 Run-Walk Method

Run Your Butt Off! 89%

Walk first, run later: a gradual plan that turns non-athletes into runners while shedding pounds.

by Sarah Lorge Butler 2011

3.75

559 ratings

🏃 Beginner Running 📉 Exercise And Weight Loss 🚶 Run-Walk Method

Beyond Training

by Ben Greenfield • 2014

Your training ages you. The balance, recovery, diet system for a durable body and lifelong fitness.

3.83

1k+

🏃 Endurance Training 🍽️ Sports Nutrition 😴 Recovery Optimization

Beyond Training 88%

Your training ages you. The balance, recovery, diet system for a durable body and lifelong fitness.

by Ben Greenfield 2014

3.83

1k+ ratings

🏃 Endurance Training 🍽️ Sports Nutrition 😴 Recovery Optimization

5-Factor Fitness

by Harley Pasternak • 2004

How Hollywood gets lean: 25 minutes a day, five meals, and a weekly cheat day.

3.70

200

🏋️ Fitness Training 🥗 Nutrition Science ⚖️ Weight Loss

5-Factor Fitness 88%

How Hollywood gets lean: 25 minutes a day, five meals, and a weekly cheat day.

by Harley Pasternak 2004

3.70

200 ratings

🏋️ Fitness Training 🥗 Nutrition Science ⚖️ Weight Loss

Jump Attack

by Tim S. Grover • 2000

Train for the fourth quarter, not just a gym max: the 90-day explosive-power protocol.

4.12

364

🏋️ Sports Training 🏃 Athletic Performance 💥 Explosive Training

Jump Attack 88%

Train for the fourth quarter, not just a gym max: the 90-day explosive-power protocol.

by Tim S. Grover 2000

4.12

364 ratings

🏋️ Sports Training 🏃 Athletic Performance 💥 Explosive Training

The Men's Health Home Workout Bible

by Lou Schuler • 2002

A complete home gym system using bodyweight, free weights, and smart programming.

3.89

230

🏠 Home Gym Training 🏋️ Strength Training 💪 Muscle Building

The Men's Health Home Workout Bible Summary

The Men's Health Home Workout Bible 88%

A complete home gym system using bodyweight, free weights, and smart programming.

by Lou Schuler 2002

3.89

230 ratings

🏠 Home Gym Training 🏋️ Strength Training 💪 Muscle Building

Training for the Uphill Athlete

by Steve House • 2019

Uphill endurance has a blueprint, and it starts with aerobic capacity, not pain tolerance.

4.57

2k+

🏃 Endurance Sports ⛰️ Mountain Running 🫁 Aerobic Base Building

Training for the Uphill Athlete 88%

Uphill endurance has a blueprint, and it starts with aerobic capacity, not pain tolerance.

by Steve House 2019

4.57

2k+ ratings

🏃 Endurance Sports ⛰️ Mountain Running 🫁 Aerobic Base Building

6-Minute Fitness at 60+

by Jonathan Su • 2020

Six minutes, twice daily, at home: the workout that rebuilds strength and balance after 60.

4.22

417

👴 Senior Fitness 🏠 Home Workouts ⚡ Hiit Training

6-Minute Fitness at 60+ 88%

Six minutes, twice daily, at home: the workout that rebuilds strength and balance after 60.

by Jonathan Su 2020

4.22

417 ratings

👴 Senior Fitness 🏠 Home Workouts ⚡ Hiit Training

6 Weeks to a Hollywood Body

by Steve Zim • 2006

A Hollywood trainer's six weeks: eating and lifting keyed to your body type, not someone else's.

3.86

116

🎬 Celebrity Fitness 🏋️ Body Transformation 🧬 Body Type Training

6 Weeks to a Hollywood Body 88%

A Hollywood trainer's six weeks: eating and lifting keyed to your body type, not someone else's.

by Steve Zim 2006

3.86

116 ratings

🎬 Celebrity Fitness 🏋️ Body Transformation 🧬 Body Type Training

365 Health and Fitness Hacks That Could Save Your Life

by Joey Thurman • 2016

Food, sleep, training: a tip for every day that compounds into a healthier, stronger body.

3.86

💪 Fitness Fundamentals 🥗 Clean Eating 🏋️ Resistance Training

365 Health and Fitness Hacks That Could Save Your Life Summary

365 Health and Fitness Hacks That Could Save Your Life 88%

Food, sleep, training: a tip for every day that compounds into a healthier, stronger body.

by Joey Thurman 2016

3.86

7 ratings

💪 Fitness Fundamentals 🥗 Clean Eating 🏋️ Resistance Training

Triathlon Training in 4 Hours a Week

by Eric Harr • 2003

A triathlon finish line in six weeks, on just four hours of training a week.

3.67

174

🏁 Triathlon For Beginners 🏃 Endurance Sports ⏱️ Time Efficient Fitness

Triathlon Training in 4 Hours a Week Summary

Triathlon Training in 4 Hours a Week 88%

A triathlon finish line in six weeks, on just four hours of training a week.

by Eric Harr 2003

3.67

174 ratings

🏁 Triathlon For Beginners 🏃 Endurance Sports ⏱️ Time Efficient Fitness

Heavy Duty

by Mike Mentzer • 1993

You're doing too many sets. The case for training less, recovering more, and growing faster.

4.47

162

💪 Strength Training 🏋️ High Intensity Training 🦾 Muscle Building

Heavy Duty 88%

You're doing too many sets. The case for training less, recovering more, and growing faster.

by Mike Mentzer 1993

4.47

162 ratings

💪 Strength Training 🏋️ High Intensity Training 🦾 Muscle Building

Bruce Lee

by Bruce Lee • 1998

Bruce Lee's training logs: the isometric holds, circuits, and stretches behind his speed and power.

4.25

2k+

🥋 Martial Arts Training 🏋️ Strength Training 💪 Functional Fitness

Bruce Lee 88%

Bruce Lee's training logs: the isometric holds, circuits, and stretches behind his speed and power.

by Bruce Lee 1998

4.25

2k+ ratings

🥋 Martial Arts Training 🏋️ Strength Training 💪 Functional Fitness

Tactical Barbell

by K. Black • 2022

Build fitness that carries a 50-pound ruck twenty miles and still has fight at the end.

4.64

245

🔰 Tactical Fitness 🏋️ Hybrid Training 📅 Periodization

Tactical Barbell 88%

Build fitness that carries a 50-pound ruck twenty miles and still has fight at the end.

by K. Black 2022

4.64

245 ratings

🔰 Tactical Fitness 🏋️ Hybrid Training 📅 Periodization

Force

by Dan Cleather • 2021

Athletic power is about impulse, not peak force. Most training methods ignore this.

4.25

151

🦴 Biomechanics 🏋️ Strength And Conditioning 💪 Force Production

Force 88%

Athletic power is about impulse, not peak force. Most training methods ignore this.

by Dan Cleather 2021

4.25

151 ratings

🦴 Biomechanics 🏋️ Strength And Conditioning 💪 Force Production

The First 20 Minutes

by Gretchen Reynolds • 2012

Why moderate, steady exercise beats brutal workouts, and how the right recovery fuels aging well.

3.80

5k+

🧬 Exercise Science ⏳ Longevity Fitness 🧠 Brain Health

The First 20 Minutes 88%

Why moderate, steady exercise beats brutal workouts, and how the right recovery fuels aging well.

by Gretchen Reynolds 2012

3.80

5k+ ratings

🧬 Exercise Science ⏳ Longevity Fitness 🧠 Brain Health

The Abs Diet

by Ted Spiker • 2004

Twelve foods, six meals a day, and a workout that turns muscle into a calorie furnace.

3.83

2k+

🍽️ Diet Plans 🏋️ Strength Training 🍴 Meal Frequency

The Abs Diet 88%

Twelve foods, six meals a day, and a workout that turns muscle into a calorie furnace.

by Ted Spiker 2004

3.83

2k+ ratings

🍽️ Diet Plans 🏋️ Strength Training 🍴 Meal Frequency

Beyond Bigger Leaner Stronger

by Michael Matthews • 2014

Advanced periodized lifting and macro tracking to crush plateaus, get shredded, and stay that way.

4.17

1k+

🏋️ Strength Training 💪 Bodybuilding 📈 Progressive Overload

Beyond Bigger Leaner Stronger 88%

Advanced periodized lifting and macro tracking to crush plateaus, get shredded, and stay that way.

by Michael Matthews 2014

4.17

1k+ ratings

🏋️ Strength Training 💪 Bodybuilding 📈 Progressive Overload

Swim Like A Pro

by Fares Ksebati • 2021

Less drag, more push: a swimmer's complete guide to getting faster without adding laps.

4.33

🏊 Swim Training 🏃 Endurance Sports 🔧 Stroke Mechanics

Swim Like A Pro 88%

Less drag, more push: a swimmer's complete guide to getting faster without adding laps.

by Fares Ksebati 2021

4.33

3 ratings

🏊 Swim Training 🏃 Endurance Sports 🔧 Stroke Mechanics

Practical Programming for Strength Training

by Mark Rippetoe • 2006

Stop adding weight every workout. The programming that replaces linear progress, phase by phase.

4.33

3k+

🏋️ Strength Programming 📈 Linear Progression 📅 Periodization

Practical Programming for Strength Training Summary

Practical Programming for Strength Training 88%

Stop adding weight every workout. The programming that replaces linear progress, phase by phase.

by Mark Rippetoe 2006

4.33

3k+ ratings

🏋️ Strength Programming 📈 Linear Progression 📅 Periodization

Runner's World Running on Air

by Budd Coates • 2013

The breathing pattern that balances footstrike impact and gives you a built-in pace coach.

3.63

359

🏃 Distance Running 🌬️ Breathwork For Athletes 🩹 Injury Prevention

Runner's World Running on Air 88%

The breathing pattern that balances footstrike impact and gives you a built-in pace coach.

by Budd Coates 2013

3.63

359 ratings

🏃 Distance Running 🌬️ Breathwork For Athletes 🩹 Injury Prevention

Maximum Strength

by Eric Cressey CSCS • 2008

Stronger in 16 weeks: the compound-lift program that builds what bodybuilding cannot.

3.91

262

🏋️ Strength Training 💪 Compound Lifts 📈 Progressive Overload

Maximum Strength 88%

Stronger in 16 weeks: the compound-lift program that builds what bodybuilding cannot.

by Eric Cressey CSCS 2008

3.91

262 ratings

🏋️ Strength Training 💪 Compound Lifts 📈 Progressive Overload

Deep Fitness

by Philip Shepherd • 2021

Thirty minutes a week, one set to failure: the science and the presence that change everything.

3.86

154

🏋️ Strength Training 💥 High Intensity Training ⏱️ Time-Efficient Fitness

Deep Fitness 88%

Thirty minutes a week, one set to failure: the science and the presence that change everything.

by Philip Shepherd 2021

3.86

154 ratings

🏋️ Strength Training 💥 High Intensity Training ⏱️ Time-Efficient Fitness

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