Too hot to exercise outside? These indoor moves can still get you fit

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Outdoor exercise is still manageable for now, but as summer approaches, intense heat can make it difficult to stay active outside. Experts say it is a good idea to prepare one or two workouts that can easily be done indoors during the hottest months.

So which indoor exercises provide the biggest results in the shortest amount of time? According to U.S. health and lifestyle magazine Prevention, the following exercises are effective for weight loss and building a toned physique.

Push-ups

Push-ups are one of the most classic strength-training exercises. They help strengthen the chest, shoulders, arms and even the abdominal muscles.

To perform a push-up, start in a plank position with your hands slightly wider than shoulder-width apart. Keep your body in a straight line from head to toe. Lower your chest toward the floor by bending your elbows, then push yourself back up while engaging your chest and arm muscles.

Beginners can start with one set of five repetitions. People at a more intermediate level can do two sets of 10 and more advanced athletes can aim for two sets of 20.

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Crunches

Crunches are considered one of the most effective exercises for building abdominal muscles. Unlike sit-ups, the lower back stays on the floor during the movement.

It is important to keep tension in the abs not only while contracting the muscles but also while lowering the body back down.

To perform a crunch, lie on the floor with your knees bent and feet flat on the ground. Place your hands near your ears and slightly lift your head while tightening your abs. Curl your upper body so your shoulders rise about 10 centimeters off the floor. Slowly lower yourself back down without letting your head fully touch the ground.

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Squats

Squats are excellent for strengthening the thighs and glutes. Traditionally, squats involve placing a barbell across the shoulders before lowering into a deep crouch and standing back up.

However, when you cannot go to a gym, bodyweight squats are an effective alternative. Stand with your feet shoulder-width apart and lower your body while keeping your knees aligned with your feet and shoulders. Then stand back up and repeat.

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Lunges

Lunges are one of the most popular lower-body exercises, helping tone the thighs and glutes while strengthening the legs.

Even bodyweight lunges can provide enough resistance, but using dumbbells and moving slowly can increase the intensity.

To do a lunge, stand upright with your feet hip-width apart and your hands on your hips. Step forward about 70 to 100 centimeters on one foot, while lifting the heel of the other foot. Keep your gaze forward.

With your back straight, bend your right knee to a 90-degree angle and lower your left knee toward the floor. Use your leg muscles to slowly return to the starting position. Repeat on both sides.

Frequently asked questions

Q. Can indoor workouts alone be enough to stay healthy?

Yes. A balanced routine that includes cardio, strength training and stretching can help maintain fitness even without outdoor exercise. Indoor workouts are also easier to stick with because they are less affected by weather or air pollution.

Q. What is the difference between home workouts and gym workouts?

Home workouts are more affordable and flexible with time. Gym workouts provide access to more equipment and structured training. Ultimately, consistency matters more than where you exercise.

Q. What exercises can I do without disturbing neighbors?

Low-noise exercises include yoga, Pilates, stretching, resistance-band workouts, planks and slow squats. Exercises involving a lot of jumping may create more noise.

This article from Kormedi.com, Korea’s top health care and medical portal, is translated by a generative AI system and edited by The Korea Times.