Key takeaway: Who says you can't achieve muscle building without equipment? Perhaps you used to think that way, but hopefully this article will change your mind. Fitness is everywhere, and there are no limits to it.

　　The arrival of the three-day May Day holiday has most people excited and energized. If you're an athletic guy who enjoys outdoor activities and wants to build muscle, but don't have access to outdoor gym equipment, how can you do muscle-building exercises? Actually, muscle-building exercises can be done anywhere; it just depends on whether you put in the effort. This article will teach you how to do muscle-building exercises outdoors.

　　Exercise 1: Wheelbarrow Push-ups

　　Muscles targeted: pectoralis major, abdominal muscles, shoulder muscles, etc.

　　Movement: Begin with a regular push-up, hands on the ground, back straight. Have a partner stand behind you and lift your legs, as if pushing a unicycle. As she lifts you, tighten your glutes and abs, keeping your body from drooping. Once stable, bend your elbows to lower your body until your upper arms are parallel to the ground, hold for one second, then return to the starting position.

　　Key points: In general, the head should be lower than the feet, or you can place your feet on a higher step for the exercise.

　　Exercise 2: Pull-ups (tree trunk)

　　Muscles targeted: latissimus dorsi, biceps brachii, shoulder muscles, etc.

　　Movement: Grasp a tree branch with both hands, arms shoulder-width apart, palms facing you. Bend your knees and cross your feet. Tilt your head slightly back, squeeze your shoulders together, and bend your elbows. Pull your arms upward as high as possible, lifting your body as high as possible. Hold for one second, then return to the starting position.

　　Key points: When choosing a tree trunk, make sure it is thick and not too tall. If you feel weak, ask a friend for help and have them support your knees.

　　Action 3: Riding a bicycle foot-to-foot

　　Target muscle group: Abdominal muscles.

　　Movement: Lie flat on the grass with your legs bent and feet flat on the ground, soles of your feet touching and off the ground, thighs perpendicular, shins parallel to the ground. Tighten your abs, lift your head, and lift your shoulders off the ground. As you lift your body, bring your right knee towards your chest while simultaneously straightening your left leg. (Your partner should do the same for you, but the soles of your feet should never separate.) Hold for one second, return to the starting position, and repeat in the opposite direction.

　　Key points: When you first start practicing, focus on the accuracy of your movements and don't go too fast. Increase your speed as you become more proficient.