Author: Roger Hall
Publisher: Hatherleigh Press
ISBN: 1578265622
Category : Health & Fitness
Languages : en
Pages : 225
Book Description
Achieve new levels of fitness in just minutes a day with high intensity interval training (HIIT) workouts...tabata style! A long-time favorite of athletes looking to reach their peak and stay competitive, high intensity interval training (HIIT) burns body fat with more efficiency than any other method. By pushing your body close to its exercise limits for very brief periods, HIIT achieves real results in improving both cardiovascular and respiratory functions. Requiring less time than any other method of fitness, tabata, a form of HIIT, is now acknowledged to be the single most advantageous form of exercise for any number of fitness goals. Tabata lets you push your body to its physical limits—getting the results you want while avoiding stress-based injuries and unwanted setbacks. Requiring little to no equipment, tabata is as affordable as it is effective. The Tabata Workout Handbook lets you tailor the intensity of your workout to your starting ability. And since each movement only takes 4 minutes to complete, tabata is perfect for any schedule! The Tabata Workout Handbook includes: • Over 100 tabata routines, with endless possible variations • Weighted tabata workout drills, letting you work tabata into any strength-building program • Detailed, easy-to-understand exercise descriptions to help you master each tabata movement • Tips on how to best supplement your existing workout regimen, letting you customize your tabata experience to fit your needs • Tabata Tracker journal pages to help you keep track of your progress Whether you’re looking to intensify an existing workout, increase your fitness results, or overcome your personal fitness plateau and reach new heights, The Tabata Workout Handbook shows you how!
Tabata Workout Handbook, Volume 2
Author: Michael Volkmar
Publisher: Hatherleigh Press
ISBN: 1578267234
Category : Health & Fitness
Languages : en
Pages : 198
Book Description
More than 100 all-new, Tabata-style high intensity interval training workouts (HIIT) for all fitness levels. A long-time favorite of athletes looking to reach their peak and stay competitive, high intensity interval training (HIIT) helps you achieve new levels of physical fitness—all in just a few minutes a day. Tabata Workout Handbook Volume 2 includes: • Over 100 all-new Tabata workouts • Barbell, dumbbell and body weight Tabatas • Sports-specific Tabatas including tennis and golf • Aquatic Tabatas for the pool • Strength-building Tabata programs for power • Fat-burning Tabatas for weight loss • Easy-to-understand exercise descriptions Tabata lets you push your body to its physical limits—getting the results you want while avoiding stress-based injuries and unwanted setbacks. Requiring little to no equipment, Tabata is as affordable as it is effective. Tabata Workout Handbook Volume 2 features all-new workouts, with programs perfect for beginners and experts alike. • NO GYM REQUIRED. With little to no equipment investment, tabata represents one of the most affordable, effective workout regimens on the market today. • ACCESSIBLE TO ALL FITNESS LEVELS. With customized and customizable workouts perfect for anyone from beginners to experts, Tabata Workout Handbook, Vol. 2 allows athletes to jump right in at their personal fitness level, making the workouts quick and easy to include in your existing routines. • ONLINE SUPPORT THROUGH GETFITNOW PLATFORM. Comprehensive online support via social media, community forums, and website featuring additional content such as exclusive exercise videos, nutritional tips, live updates from authors, and more. • REACH YOUR ABSOLUTE PHYSICAL PEAK. Designed to help athletes maximize their results in the most effective, efficient way possible, Tabata Workout Handbook, Vol. 2 lets athletes break through personal barriers and set new standards of fitness for themselves. Whether you’re looking to intensify an existing workout, increase your fitness results, or overcome your personal fitness plateau and reach new heights, Tabata Workout Handbook Volume 2 shows you how!
Publisher: Hatherleigh Press
ISBN: 1578267234
Category : Health & Fitness
Languages : en
Pages : 198
Book Description
More than 100 all-new, Tabata-style high intensity interval training workouts (HIIT) for all fitness levels. A long-time favorite of athletes looking to reach their peak and stay competitive, high intensity interval training (HIIT) helps you achieve new levels of physical fitness—all in just a few minutes a day. Tabata Workout Handbook Volume 2 includes: • Over 100 all-new Tabata workouts • Barbell, dumbbell and body weight Tabatas • Sports-specific Tabatas including tennis and golf • Aquatic Tabatas for the pool • Strength-building Tabata programs for power • Fat-burning Tabatas for weight loss • Easy-to-understand exercise descriptions Tabata lets you push your body to its physical limits—getting the results you want while avoiding stress-based injuries and unwanted setbacks. Requiring little to no equipment, Tabata is as affordable as it is effective. Tabata Workout Handbook Volume 2 features all-new workouts, with programs perfect for beginners and experts alike. • NO GYM REQUIRED. With little to no equipment investment, tabata represents one of the most affordable, effective workout regimens on the market today. • ACCESSIBLE TO ALL FITNESS LEVELS. With customized and customizable workouts perfect for anyone from beginners to experts, Tabata Workout Handbook, Vol. 2 allows athletes to jump right in at their personal fitness level, making the workouts quick and easy to include in your existing routines. • ONLINE SUPPORT THROUGH GETFITNOW PLATFORM. Comprehensive online support via social media, community forums, and website featuring additional content such as exclusive exercise videos, nutritional tips, live updates from authors, and more. • REACH YOUR ABSOLUTE PHYSICAL PEAK. Designed to help athletes maximize their results in the most effective, efficient way possible, Tabata Workout Handbook, Vol. 2 lets athletes break through personal barriers and set new standards of fitness for themselves. Whether you’re looking to intensify an existing workout, increase your fitness results, or overcome your personal fitness plateau and reach new heights, Tabata Workout Handbook Volume 2 shows you how!
Cycling Workout Handbook
Author: Terri Schneider
Publisher: Hatherleigh Press
ISBN: 1578267714
Category : Health & Fitness
Languages : en
Pages : 194
Book Description
A workout collection for both fitness cyclists and multi-sport athletes. Whether cycling for fun and fitness or training for a century ride, The Cycling Workout Handbook is your comprehensive training resource from top multi-sport athlete and coach Terri Schneider. The Cycling Workout Handbook includes training programs with calculated periodization and regular recovery cycles for maximum fitness benefit. The Cycling Workout Handbook provides easy-to-follow programs divided weekly and by athletic level. Training tips and expert notes are included, as well as gear recommendations.
Publisher: Hatherleigh Press
ISBN: 1578267714
Category : Health & Fitness
Languages : en
Pages : 194
Book Description
A workout collection for both fitness cyclists and multi-sport athletes. Whether cycling for fun and fitness or training for a century ride, The Cycling Workout Handbook is your comprehensive training resource from top multi-sport athlete and coach Terri Schneider. The Cycling Workout Handbook includes training programs with calculated periodization and regular recovery cycles for maximum fitness benefit. The Cycling Workout Handbook provides easy-to-follow programs divided weekly and by athletic level. Training tips and expert notes are included, as well as gear recommendations.
Dumbbell Workout Handbook: Strength and Power
Author: Michael Volkmar
Publisher: Hatherleigh Press
ISBN: 1578267757
Category : Health & Fitness
Languages : en
Pages : 235
Book Description
THE ULTIMATE HANDBOOK FOR BUILDING MUSCLE WITH DUMBBELLS Perfect anyone looking to develop explosive power and build strength, dumbbells remain the most common—and most effective—tool to reach your fitness goals. The Dumbbell Workout Handbook: Strength & Power combines an all-new collection of dumbbell workouts to create a complete fitness program focused on using dumbbells to pack on muscle, build power and burn fat while improving total body conditioning. With workout circuits perfect for every fitness level, from beginner to advanced, The Dumbbell Workout Handbook: Strength & Power is the final word on building muscle with dumbbells. The Dumbbell Workout Handbook: Strength & Power features: • Over 100 dumbbell workouts designed to fit any program • Progression-focused programming for guaranteed results • Workouts to increase size and maximize power • Nutritional and recovery tips • Intense power super sets for extra challenge • Programs for endurance athletes utilizing dumbbells Whether you’re looking to supercharge your workouts, improve on your personal bests, or overcome your personal fitness plateau and achieve never before seen results, The Dumbbell Workout Handbook: Strength & Power shows you how!
Publisher: Hatherleigh Press
ISBN: 1578267757
Category : Health & Fitness
Languages : en
Pages : 235
Book Description
THE ULTIMATE HANDBOOK FOR BUILDING MUSCLE WITH DUMBBELLS Perfect anyone looking to develop explosive power and build strength, dumbbells remain the most common—and most effective—tool to reach your fitness goals. The Dumbbell Workout Handbook: Strength & Power combines an all-new collection of dumbbell workouts to create a complete fitness program focused on using dumbbells to pack on muscle, build power and burn fat while improving total body conditioning. With workout circuits perfect for every fitness level, from beginner to advanced, The Dumbbell Workout Handbook: Strength & Power is the final word on building muscle with dumbbells. The Dumbbell Workout Handbook: Strength & Power features: • Over 100 dumbbell workouts designed to fit any program • Progression-focused programming for guaranteed results • Workouts to increase size and maximize power • Nutritional and recovery tips • Intense power super sets for extra challenge • Programs for endurance athletes utilizing dumbbells Whether you’re looking to supercharge your workouts, improve on your personal bests, or overcome your personal fitness plateau and achieve never before seen results, The Dumbbell Workout Handbook: Strength & Power shows you how!
The Swimmer's Workout Handbook
Author: Terri Schneider
Publisher: Hatherleigh Press
ISBN: 1578266831
Category : Health & Fitness
Languages : en
Pages : 281
Book Description
100 of the best swim workouts for all experience levels: fitness, Masters level, or competition. Easy-to-follow pool workouts designed to make you a stronger, faster, and more proficient swimmer. The Swimmer’s Workout Handbook is a complete guide to escaping the routine of pool swimming with varied training workouts to keep you challenged and engaged, and improve your performance. Expert and multi-sport coach Terri Schneider combines skill training with variations in speed, distance, and technique for an effective and easy-to-follow series of pool workouts designed to make you a stronger, faster, and more proficient swimmer. The Swimmer’s Workout Handbook includes: · 100 swim workouts for all experience levels · Expert-designed pool workouts · A guide to common swim terms used in the workouts · Information on gear and guidelines to get the most out of your workouts Swimming improves core, muscular, and cardiovascular strength and endurance, all in a low-impact, gravity-free workout. If done two to several times per week, or as an addition to a multi-sport training regime, swimming helps maintain a healthy weight, heart, and lungs. These benefits are best realized within the diversity of your workouts. To increase your swim fitness it is optimal to vary intensity, interval distances, recovery, and strokes, all within one workout session. The diversity within a workout is what triggers the body to grow stronger, faster, and more proficient. Whether you only have time to swim 1000 meters/yards, or are up for 5000 at each session, The Swimmer’s Workout Handbook organizes speed, distance, and technique into these 100 fun and challenging training sessions—putting vitality back into your pool time.
Publisher: Hatherleigh Press
ISBN: 1578266831
Category : Health & Fitness
Languages : en
Pages : 281
Book Description
100 of the best swim workouts for all experience levels: fitness, Masters level, or competition. Easy-to-follow pool workouts designed to make you a stronger, faster, and more proficient swimmer. The Swimmer’s Workout Handbook is a complete guide to escaping the routine of pool swimming with varied training workouts to keep you challenged and engaged, and improve your performance. Expert and multi-sport coach Terri Schneider combines skill training with variations in speed, distance, and technique for an effective and easy-to-follow series of pool workouts designed to make you a stronger, faster, and more proficient swimmer. The Swimmer’s Workout Handbook includes: · 100 swim workouts for all experience levels · Expert-designed pool workouts · A guide to common swim terms used in the workouts · Information on gear and guidelines to get the most out of your workouts Swimming improves core, muscular, and cardiovascular strength and endurance, all in a low-impact, gravity-free workout. If done two to several times per week, or as an addition to a multi-sport training regime, swimming helps maintain a healthy weight, heart, and lungs. These benefits are best realized within the diversity of your workouts. To increase your swim fitness it is optimal to vary intensity, interval distances, recovery, and strokes, all within one workout session. The diversity within a workout is what triggers the body to grow stronger, faster, and more proficient. Whether you only have time to swim 1000 meters/yards, or are up for 5000 at each session, The Swimmer’s Workout Handbook organizes speed, distance, and technique into these 100 fun and challenging training sessions—putting vitality back into your pool time.
The Runner's Workout Handbook
Author: Terri Schneider
Publisher: Hatherleigh Press
ISBN: 157826698X
Category : Health & Fitness
Languages : en
Pages : 215
Book Description
Whether you run competitively, to get fit or to stay fit, The Runner’s Workout Handbook is your complete guide to finding innovative and engaging running plans to make the most of your training time, providing a wide variety of workouts to keep you challenged and motivated, all while improving your performance. Expert and multi-sport coach Terri Schneider combines skill training with variations in speed, distance, and technique for an effective and easy-to-follow series of running workouts designed to make you a stronger, faster, and more proficient runner. The Runner’s Workout Handbook includes: • 100 running workouts for all experience levels • Expert-designed track and field workouts • A guide to common terms used in the workouts • Information on gear and guidelines to get the most out of your workouts Running is the easiest and most affordable way to build and maintain your fitness, and can be tailored to work your core, muscular strength, and cardiovascular endurance. The Runner’s Workout Handbook will keep you challenged and motivated like never before!
Publisher: Hatherleigh Press
ISBN: 157826698X
Category : Health & Fitness
Languages : en
Pages : 215
Book Description
Whether you run competitively, to get fit or to stay fit, The Runner’s Workout Handbook is your complete guide to finding innovative and engaging running plans to make the most of your training time, providing a wide variety of workouts to keep you challenged and motivated, all while improving your performance. Expert and multi-sport coach Terri Schneider combines skill training with variations in speed, distance, and technique for an effective and easy-to-follow series of running workouts designed to make you a stronger, faster, and more proficient runner. The Runner’s Workout Handbook includes: • 100 running workouts for all experience levels • Expert-designed track and field workouts • A guide to common terms used in the workouts • Information on gear and guidelines to get the most out of your workouts Running is the easiest and most affordable way to build and maintain your fitness, and can be tailored to work your core, muscular strength, and cardiovascular endurance. The Runner’s Workout Handbook will keep you challenged and motivated like never before!
The One-Minute Workout
Author: Martin Gibala
Publisher: Penguin
ISBN: 0399183663
Category : Health & Fitness
Languages : en
Pages : 274
Book Description
Finally, the solution to the #1 reason we don’t exercise: time. Everyone has one minute. A decade ago, Martin Gibala was a young researcher in the field of exercise physiology—with little time to exercise. That critical point in his career launched a passion for high-intensity interval training (HIIT), allowing him to stay in shape with just a few minutes of hard effort. It also prompted Gibala to conduct experiments that helped launch the exploding science of ultralow-volume exercise. Now that he’s the worldwide guru of the science of time-efficient workouts, Gibala’s first book answers the ultimate question: How low can you go? Gibala’s fascinating quest for the answer makes exercise experts of us all. His work demonstrates that very short, intense bursts of exercise may be the most potent form of workout available. Gibala busts myths (“it’s only for really fit people”), explains astonishing science (“intensity trumps duration”), lays out time-saving life hacks (“exercise snacking”), and describes the fascinating health-promoting value of HIIT (for preventing and reversing disease). Gibala’s latest study found that sedentary people derived the fitness benefits of 150 minutes of traditional endurance training with an interval protocol that involved 80 percent less time and just three minutes of hard exercise per week. Including the eight best basic interval workouts as well as four microworkouts customized for individual needs and preferences (you may not quite want to go all out every time), The One-Minute Workout solves the number-one reason we don’t exercise: lack of time. Because everyone has one minute.
Publisher: Penguin
ISBN: 0399183663
Category : Health & Fitness
Languages : en
Pages : 274
Book Description
Finally, the solution to the #1 reason we don’t exercise: time. Everyone has one minute. A decade ago, Martin Gibala was a young researcher in the field of exercise physiology—with little time to exercise. That critical point in his career launched a passion for high-intensity interval training (HIIT), allowing him to stay in shape with just a few minutes of hard effort. It also prompted Gibala to conduct experiments that helped launch the exploding science of ultralow-volume exercise. Now that he’s the worldwide guru of the science of time-efficient workouts, Gibala’s first book answers the ultimate question: How low can you go? Gibala’s fascinating quest for the answer makes exercise experts of us all. His work demonstrates that very short, intense bursts of exercise may be the most potent form of workout available. Gibala busts myths (“it’s only for really fit people”), explains astonishing science (“intensity trumps duration”), lays out time-saving life hacks (“exercise snacking”), and describes the fascinating health-promoting value of HIIT (for preventing and reversing disease). Gibala’s latest study found that sedentary people derived the fitness benefits of 150 minutes of traditional endurance training with an interval protocol that involved 80 percent less time and just three minutes of hard exercise per week. Including the eight best basic interval workouts as well as four microworkouts customized for individual needs and preferences (you may not quite want to go all out every time), The One-Minute Workout solves the number-one reason we don’t exercise: lack of time. Because everyone has one minute.
The Mobility Workout Handbook
Author: William Smith
Publisher: Hatherleigh Press
ISBN: 1578266203
Category : Health & Fitness
Languages : en
Pages : 246
Book Description
BETTER PERFORMANCE, BETTER RESULTS—WITH MOBILITY! From golf to tennis, swimming to running, cross training to strength training, everyday athletes everywhere can benefit from mobility training. Essential for promoting better performance and reducing risk of injury, mobility refers to how well your body moves through a given movement pattern. The Mobility Workout Handbook is your complete guide to incorporating this critical aspect of fitness into your workout routines. Exercise, paired with proper mobility training, is what enables professional athletes to work to their fullest potential without fear of injury or burnout…and now you can too! Fitness experts Will Smith, David Kirschen, and Mike Volkmar have brought their decades of experience together to provide an effective and easy-to-follow series of sports-specific mobility routines. Designed to help increase range of motion and allow for better performance at all levels of the fitness spectrum, these cutting-edge training routines bring the leading concepts in injury prevention and mobility development to the everyday athlete. The Mobility Workout Handbook includes: • 100 mobility routines, with endless possible variations • Expert-designed workouts of the day (WODs), tailored to a variety of sports and fitness activities • Detailed, easy-to-understand exercise descriptions to help you master each movement • Tips on how to supplement your existing workout regimen and completely customize your fitness experience to your needs • Everyday Tracker journal pages to help you keep track of your progress Revamp your body and revitalize your routines with all-in-one mobility workouts!
Publisher: Hatherleigh Press
ISBN: 1578266203
Category : Health & Fitness
Languages : en
Pages : 246
Book Description
BETTER PERFORMANCE, BETTER RESULTS—WITH MOBILITY! From golf to tennis, swimming to running, cross training to strength training, everyday athletes everywhere can benefit from mobility training. Essential for promoting better performance and reducing risk of injury, mobility refers to how well your body moves through a given movement pattern. The Mobility Workout Handbook is your complete guide to incorporating this critical aspect of fitness into your workout routines. Exercise, paired with proper mobility training, is what enables professional athletes to work to their fullest potential without fear of injury or burnout…and now you can too! Fitness experts Will Smith, David Kirschen, and Mike Volkmar have brought their decades of experience together to provide an effective and easy-to-follow series of sports-specific mobility routines. Designed to help increase range of motion and allow for better performance at all levels of the fitness spectrum, these cutting-edge training routines bring the leading concepts in injury prevention and mobility development to the everyday athlete. The Mobility Workout Handbook includes: • 100 mobility routines, with endless possible variations • Expert-designed workouts of the day (WODs), tailored to a variety of sports and fitness activities • Detailed, easy-to-understand exercise descriptions to help you master each movement • Tips on how to supplement your existing workout regimen and completely customize your fitness experience to your needs • Everyday Tracker journal pages to help you keep track of your progress Revamp your body and revitalize your routines with all-in-one mobility workouts!
Triathlon Training Handbook
Author: Terri Schneider
Publisher: Hatherleigh Press
ISBN: 1578267250
Category : Health & Fitness
Languages : en
Pages : 199
Book Description
The comprehensive guide to achieving your triathlon goals through a three-stage fitness training program. Combining running, swimming and biking-specific exercises with complementary endurance and strength training, The Triathlon Training Handbook approach emphasizes targeted fitness milestones alongside proper recovery. These workouts provide easy-to-follow programs divided weekly and by level (beginner, intermediate, advanced). • PROVEN TECHNIQUES FOR STRENGTH AND ENDURANCE. Combining proven strength and endurance training routines with specific skill programs, The Triathlon Training Handbook lets you push your body to reach its full potential--getting the results you want while avoiding stress-based injury and unwanted setbacks. • EASY-TO-FOLLOW WORKOUT PLANS. With workouts perfect for anyone from beginners to experts, The Triathlon Training Handbook allows people to jump right in at their personal fitness level, making the workouts quick and easy to include in your existing routines. • ONLINE SUPPORT THROUGH GETFITNOW PLATFORM. Comprehensive online support via social media, community forums, and website featuring additional content such as exclusive exercise videos, nutritional tips, live updates from authors, and more. • EXPERT PRESENTATION GUARANTEES RESULTS. The Triathlon Training Handbook takes all of support and expert guidance of a dedicated personal trainer--and puts it right in your hands. Training tips and expert notes are included, as well as a training journal where you can log your progress.
Publisher: Hatherleigh Press
ISBN: 1578267250
Category : Health & Fitness
Languages : en
Pages : 199
Book Description
The comprehensive guide to achieving your triathlon goals through a three-stage fitness training program. Combining running, swimming and biking-specific exercises with complementary endurance and strength training, The Triathlon Training Handbook approach emphasizes targeted fitness milestones alongside proper recovery. These workouts provide easy-to-follow programs divided weekly and by level (beginner, intermediate, advanced). • PROVEN TECHNIQUES FOR STRENGTH AND ENDURANCE. Combining proven strength and endurance training routines with specific skill programs, The Triathlon Training Handbook lets you push your body to reach its full potential--getting the results you want while avoiding stress-based injury and unwanted setbacks. • EASY-TO-FOLLOW WORKOUT PLANS. With workouts perfect for anyone from beginners to experts, The Triathlon Training Handbook allows people to jump right in at their personal fitness level, making the workouts quick and easy to include in your existing routines. • ONLINE SUPPORT THROUGH GETFITNOW PLATFORM. Comprehensive online support via social media, community forums, and website featuring additional content such as exclusive exercise videos, nutritional tips, live updates from authors, and more. • EXPERT PRESENTATION GUARANTEES RESULTS. The Triathlon Training Handbook takes all of support and expert guidance of a dedicated personal trainer--and puts it right in your hands. Training tips and expert notes are included, as well as a training journal where you can log your progress.
The Men's Health Big Book of 15-Minute Workouts
Author: Selene Yeager
Publisher: Rodale Books
ISBN: 1609617363
Category : Health & Fitness
Languages : en
Pages : 418
Book Description
Men love shortcuts. If there's a way to accomplish a job quicker and more efficiently, they're all for it. That goes for work and working out. Now, new research shows that as little as 15 minutes of resistance training is just as effective in spiking a man's metabolism—his fat-burning furnace—as a workout lasting more than twice as long. All it takes is 15 minutes to achieve lifelong results—and men are more likely to stick to an exercise plan if it's chopped down to those 15 minutes. The Men's Health Big Book of 15-Minute Workouts contains fast-paced circuit training and interval workouts that boost calorie burn, build muscle, and fry belly fat in half the time of regular workouts. Readers can choose from at-home, body-weight-only workouts and total-body barbell programs to exercises that target major muscle groups—the chest, arms, legs, and back—and sport-specific workouts. Other highlights include: - a special section of 15-minute core workouts to build a rock-hard six-pack - an eating plan with delicious meals that take 15 minutes or less to prepare - workouts for the office or when you're traveling and can't make it to the gym - hundreds of tips from America's best trainers, nutritionists, and exercise scientists
Publisher: Rodale Books
ISBN: 1609617363
Category : Health & Fitness
Languages : en
Pages : 418
Book Description
Men love shortcuts. If there's a way to accomplish a job quicker and more efficiently, they're all for it. That goes for work and working out. Now, new research shows that as little as 15 minutes of resistance training is just as effective in spiking a man's metabolism—his fat-burning furnace—as a workout lasting more than twice as long. All it takes is 15 minutes to achieve lifelong results—and men are more likely to stick to an exercise plan if it's chopped down to those 15 minutes. The Men's Health Big Book of 15-Minute Workouts contains fast-paced circuit training and interval workouts that boost calorie burn, build muscle, and fry belly fat in half the time of regular workouts. Readers can choose from at-home, body-weight-only workouts and total-body barbell programs to exercises that target major muscle groups—the chest, arms, legs, and back—and sport-specific workouts. Other highlights include: - a special section of 15-minute core workouts to build a rock-hard six-pack - an eating plan with delicious meals that take 15 minutes or less to prepare - workouts for the office or when you're traveling and can't make it to the gym - hundreds of tips from America's best trainers, nutritionists, and exercise scientists