Tim Liu, C.S.C.S.

Social media

About author

Tim Liu, CSCS, is an online fitness and nutrition coach based in Los Angeles. Tim helps busy men and women lose fat and build muscle without having to live in the gym. He teaches clients sustainable habits so they can not only lose weight but also keep it off.

In addition to being a strength and conditioning coach, Tim is also a Precision Nutrition Level 2 Coach and Certified Coach through the Online Trainer Academy. You can find Tim on his website at www.timliufitness.com and on Instagram @timliufitness

Articles by Tim Liu, C.S.C.S.

woman doing standing ab workout with resistance bands

The 10-Move Standing Ab Workout To Get Fit & Lean

Reveal a lean, more toned midsection by adding this 10-move workout to your routine.

woman doing forearm plank, concept of ab exercises for beginners

11 Best Ab Exercises for Beginners

These exercises are perfect for those who are just starting their ab-sculpting journey.

man doing pushups

13 Most Effective Exercises To Slow Muscle Aging

Trainers share their must-try exercises to slow down muscle aging.

resistance band squat, resistance band exercises for belly fat

10 Best Resistance Band Exercises for a Slimmer Stomach

Grab your resistance band, and do these exercises to strip away belly fat.

woman doing dumbbell lunges, concept of morning exercises for all-day energy

10 Best Morning Exercises for All-Day Energy

These exercises will have you feeling energized, sharp, and focused throughout the day.

man doing chin-up exercise

The 9 Most Effective Exercises To Get Rid Of Back Fat

Emphasizing strength training is key.

middle-aged woman lifting dumbbells, concept of the best exercises for rapid weight loss in your 50s

15 Best Exercises for Rapid Weight Loss After 50

If you're looking to slim down as you age, these exercises are king.

woman doing bench dips to get rid of jelly belly

8 Bodyweight Exercises To Get Rid of Your “Jelly Belly”

Melt belly fat that jiggles for good with these moves.

man doing side planks on court, concept of no-equipment exercises for men

7 No-Equipment Exercises Men Should Do Every Day

Stay in excellent shape by adding these daily exercises to your routine.

fit woman doing 15-minute total-body workout bicep curls

The 15-Minute Total-Body Workout You Can Do To Burn Calories

Maximizing your gym time is key when you're looking to get into shape.

fit man doing standing cardio workout jumps

The Best 10-Minute Standing Cardio Workout—No Equipment Required

Revving up your cardio starts with this quick and simple mini workout.

fit middle-aged woman holding up dumbbells outdoors, concept of strength exercises to stay fit

8 Strength Exercises To Do Regularly in Your 40s To Stay Fit

Stay toned, strong, and lean during this stage of life and beyond.

muscular man lifting weights doing dumbbell exercises

10 Best Dumbbell Exercises To Build Size & Strength

The dumbbell is a stellar tool if you want to boost your strength and get bigger.

muscular man doing leg extension exercises for bigger legs

9 Best Exercises for Men To Get Bigger, Stronger Legs

Get ready to pack on muscle and strength in your lower body.

fit man performing arm exercise on machine to build muscle density and boost strength

5 Ways To Build Muscle Density & Boost Your Strength

Lifting weights should be a regular go-to activity at the gym.

mature senior woman doing side plank exercise on yoga mat outdoors, core-strengthening exercises for seniors

The Best Core-Strengthening Exercises for Seniors

Maintain and build your strength in order to live an active, pain-free life.

middle-aged man running through sunny park, concept of what running daily does to your body

What a Daily Running Habit Does to Your Body After 50

Kick up your cardio game to totally thrive as you age.

mature man sore at gym, concept of fitness habits that cause muscle fatigue as you age

The 4 Worst Fitness Habits That Cause Muscle Fatigue as You Age

Ditch these common mistakes pronto.

older man holding out dumbbells demonstrating arm-strengthening exercises for seniors

The Best Arm-Strengthening Exercises for Seniors

Maintaining muscle and strength is key in warding off the effects of aging.

fitness woman performing wide-grip cable row exercises at the gym to lose back fat

The #1 Upper-Body Workout To Fight Back Fat

Show the excess fat who's boss with these strength exercises.

fit woman demonstrates single-leg glute bridge floor workout to lose belly flab

Cut Unwanted Belly Flab With This 10-Minute Mat Routine

Melt inches off your waistline with this quick fat-burning workout.

fitness woman drinking water on a run, concept of everyday habits for a flatter stomach that are easy

Everyday Habits For a Flatter Stomach That Are Super Easy

Add these simple yet productive steps to your routine ASAP.

woman doing dumbbell pushups exercises to lose belly fat in 30 days

7 At-Home Exercises To Reduce Belly Fat in 30 Days

Learn the primary focus of your new routine to melt that belly fat.

woman doing split squats, walking lunges at home as part of low-intensity workout

The Perfect 10-Minute Low-Intensity Workout for Beginners

Kickstart your fitness journey with this simple yet effective routine.

mature man doing dumbbells exercises to improve muscular endurance at the gym

The Best Fitness Habits That Increase Your Muscular Endurance After 50

Give your physical fitness a necessary boost as you age by following these pro tips.

fit senior woman at home demonstrates body parts to exercise after 60 with dumbbells

5 Body Parts You Didn’t Know You Needed to Exercise After 60

We have you covered with the top-recommended exercises to strengthen these body parts.

mature muscular man on the treadmill, demonstrating cardio workouts to increase stamina

The Best Indoor Cardio Workouts To Increase Your Stamina

It's time to rev up your cardio.

woman demonstrating walking lunges with dumbbells to lose the extra five pounds

Lose 5 Pounds With This High-Intensity Workout

Burn off those pesky pounds with this routine.

boulder shoulders dumbbell concept

The 10-Minute Dumbbell Workout to Sculpt Boulder Shoulders

If you want bigger, muscular shoulders, you've come to the right place.

woman close-up legs doing stair climber workout

This Stair Climber Workout Will Help You Sculpt Lean Thighs

Tone your legs and glutes with this excellent tool.

Next