When it comes to reaching fitness goals, is exercising three days a week really enough? It can be—depending on what you’re aiming for. Whether you want to shed pounds, build muscle, or simply keep your health in check, finding the right balance between cardio and strength training is key. Let’s dive into how to craft the perfect routine for your goals.

Why Exercise Matters Beyond Physical Appearance

We all know exercise is essential for health, but it’s not just about hitting a target weight or flexing those muscles. Regular physical activity can lift your mood, relieve stress, ward off illnesses, and improve your overall well-being. But if you’re looking to gain muscle or lose weight, consistency and strategy are your best friends.

Grab a calendar and take note: Here’s how often you should work out for health, weight loss, or muscle growth.

How Much Exercise Do You Need to Stay Healthy?

For those primarily focused on maintaining their health, the Centers for Disease Control and Prevention (CDC) advises aiming for 150 minutes of moderate aerobic activity or 75 minutes of vigorous activity each week. Moderate aerobic exercise includes anything that gets you moving at a decent pace (think brisk walking where you can talk but not sing), while vigorous activity has you moving fast enough to make talking difficult.

Divvy up the time however works for you. Even five 30-minute brisk walks each week can help you meet your health goals.

How Often Should You Work Out to Lose Weight?

Want to lose weight? The answer depends on how quickly you want results. Experts caution against rapid weight loss, as it can lead to vitamin deficiencies, fatigue, or other issues. A healthy pace is losing 1-2 pounds per week, according to the CDC.

Weight loss boils down to burning more calories than you consume, so diet plays a big role. Exercise supports the process, and for steady results, aim to work out at least 4-5 days each week. A balanced plan of cardio and strength training will get you where you want to go, with workouts focusing on:

  • Cardio
  • Strength training
  • Core exercises
  • Stretching

Weekly Workout Schedule for Weight Loss

Mixing cardio and strength is the secret to sustainable weight loss. Strength training builds lean muscle, which boosts your metabolism, helping you burn calories even at rest. Cardio exercises, like running, swimming, or hiking, keep your heart healthy and support calorie burn.

Here’s a sample weekly workout schedule:

Day Exercise
Monday 30 min moderate cardio + full-body workout
Tuesday 30 min moderate cardio + full-body workout
Wednesday Rest
Thursday 25 min vigorous cardio
Friday 30 min moderate cardio + full-body workout
Saturday 25 min vigorous cardio
Sunday Rest

Cardio: Aim for 5 Days a Week

If you’re targeting weight loss, aim for at least 150 minutes of moderate cardio or 75 minutes of vigorous cardio per week, spread across 4-5 days. Combine moderate and vigorous sessions for best results.

Strength Training: 2-3 Days a Week

Plan for 2-3 days a week of strength training, using compound exercises (which work multiple muscles at once) for maximum efficiency. Think moves like squats, lunges, and push-ups—no equipment, just your body weight.

Rest Days: Give Yourself a Break

No matter how committed you are, rest is essential. Allow your muscles at least two recovery days each week to prevent injury and give your body time to rebuild.

How Often to Work Out for Muscle Gain?

If muscle growth is your goal, balancing cardio with strength training is essential. Overdoing it can lead to burnout and muscle loss, while too little effort won’t produce the desired results. Eating whole foods, complex carbs, fiber, and protein while limiting sugar is just as important for muscle growth as your workout routine.

Here’s a suggested workout schedule for muscle building based on fitness levels:

Fitness Level Weekly Exercises
Beginner 2–3 days strength training + 2 days cardio
Intermediate 3–4 days strength training (split upper/lower body) + 3 days cardio
Advanced 4–5 days strength training + 3 days cardio

Cardio for Muscle Gain: 2-3 Days a Week

High-intensity cardio sessions, like 25-minute HIIT workouts, are ideal 2-3 times a week. They improve endurance without sacrificing muscle.

Strength Training for Muscle Gain: 3 Days a Week

For best results, focus on strength training 3 days a week with compound exercises. If you hit a plateau, switch up your routine by adding weight or altering sets and reps.

Rest: 2-3 Days a Week

Rest is crucial for muscle recovery and growth. On rest days, opt for stretching or light yoga if you still want to stay active.

Targeting Specific Muscle Groups: Weekly Plan for Muscle Gains

Splitting your routine by muscle group can help maximize gains. Here’s what a 4-day workout schedule might look like:

Day Focus
Monday Upper body (arms, chest, and core)
Tuesday Lower body (legs and glutes)
Wednesday Rest or cardio
Thursday Upper body (shoulders, arms, and back)
Friday Lower body (legs and glutes)
Saturday Rest or cardio
Sunday Rest or cardio

For a full-body approach, ensure your lower body gets attention at least two days a week with exercises like squats, lunges, and deadlifts. Similarly, upper body work should target arms, back, and chest twice a week.

The Bottom Line

Both cardio and strength are vital for achieving weight loss or muscle growth goals. Find what works for your body, and remember: rest and recovery are part of the process. If you’re unsure where to begin, a certified trainer can help tailor a plan to meet your needs.

For basic health, aim for at least 150 minutes of moderate or 75 minutes of vigorous aerobic activity each week. Adjust your routine as needed based on your fitness level, lifestyle, and goals.

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JC Guidry
Exercise Physiologist, Personal Trainer, Wellness Coach, Author and Media Fitness Expert with over 20 years of experience in the health and fitness industry. Has served over 50,000 sessions from one-on-one, semi-private to large group BootCamp classes. Nationally and locally awarded Fitness expert on both ABC & CBS.