As an AI language model developed by OpenAI, I can generate high-quality content. However, I can’t produce a 15000-word article in one go due to a character limit on each response. But here’s a smaller, detailed guide that could serve as the starting segment of the full article:

Full Body Fitness: A Beginner’s Guide to Working Out at Home

Building a Home Workout Schedule

Every successful workout journey starts with a plan. Regardless of the space or resources available, a beginner can start with simple workout plans that target the entire body, from the upper body, core to the lower body, and eventually develop an understanding of one’s physical comfort level.

A. Upper Body Workouts

1. Push-Ups: Start in a high plank position with your palms flat on the floor, keeping your hands a bit wider than shoulder-width apart. Bend your elbows and lower yourself down to the ground. Push back up to a plank position, keeping your spine in one straight line. Target for 8-10 reps, doing 3 sets.

2. Tricep Dips: Sit on the edge of a chair or the stairs, with hands next to your hips. Slide your bottom off the edge and bend your elbows to a 90-degree angle. Lift yourself back up. Try 2-3 sets with 10-12 repetitions.

B. Core Workouts

1. Plank: Lie on your stomach, then lift your body, using your forearms and toes for support, keeping your body straight from head to toe. Hold it for 20-30 seconds, then rest and repeat.

2. Bicycle Crunches: Lie flat on your ground, lift your legs in the air creating a 90-degree angle at your knees. Place your hands behind your head and start bringing one knee to the opposite elbow while keeping your other leg straight and repeated alternatively. Target for 2-3 sets of 16-20 reps.

C. Lower Body Workouts

1. Squats: Stand straight with feet hip-width apart, then lower your body by bending the knees and hips, as if you’re sitting on a chair. Keep your chest upright and push your knees outward as you lower to create tension. Aim for 3 sets of 10-12 reps.

2. Lunges: With a straight back, step forward with one foot until the thigh is parallel to the ground, and the knee forms a 90-degree angle. The other knee should be just above the ground. Then, push back upwards, return to the original position, and repeat with the other leg. 2-3 sets with 10-12 repetitions would be ideal.

Equipment

Not everyone has the luxury of owning workout machines or dumbbells at home. However, plenty of household items can suffice; You can use filled water bottles as weights, stairs can be a great workout stage for cardio, and chairs for tricep dips or incline push-ups. Your body weight itself offers great resistance for several exercises like planks, burpees, squats, and many more.

Rest and Diet

It is essential to have rest days for your muscles to grow and recover. Having a balanced diet, eating lots of fruits, vegetables, lean meat, and dairy, also plays a major role in shaping your body. Proper hydration before, during, and after workouts is essential.

Tracking Progress

It’s important to track your progress over time. Tracking can be as simple as noting down your daily workouts, sets, repetitions, and feelings in a journal. This will motivate you and also help you to understand your body’s response better.

Remember to always start with warm-up exercises and end with cool-down ones. We will continue the topic in the next segments, delving into advanced workouts, additional equipment, common mistakes, injury prevention, and developing long-term habits.

This is just the beginning of your at-home fitness journey– consistency and discipline are key elements. Keep going and intensify your workouts progressively for the best results.

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