Here are some top trends in fitness that you can include in your newsletter:

1. Home Workouts: With the rise of technology and streaming platforms, more people are opting for home workout routines. This trend allows for convenience and flexibility in scheduling workouts.

2. Virtual Fitness Classes: Online fitness classes have become increasingly popular, offering a wide range of options from yoga and HIIT to dance and strength training. Virtual classes provide accessibility to expert instructors from anywhere in the world.

3. Functional Fitness: This trend focuses on exercises that mimic real-life movements, improving strength, balance, and flexibility for everyday activities.

4. Outdoor Workouts: Many fitness enthusiasts are taking their workouts outdoors, embracing nature while engaging in activities like hiking, cycling, or outdoor group fitness classes.

5. Mind-Body Connection: There's a growing emphasis on the mind-body connection in fitness, with practices such as mindfulness, meditation, and yoga gaining popularity for their mental health benefits.

6. Wearable Fitness Tech: From fitness trackers to smart clothing, wearable technology continues to advance, providing users with valuable data and insights to optimize their workouts and overall health.

7. Personalized Fitness: Tailored fitness plans and coaching services are on the rise, leveraging technology and data analysis to create customized workouts and nutrition plans based on individual goals and preferences.

8. Recovery and Regeneration: Recovery-focused practices such as foam rolling, massage therapy, cryotherapy, and sleep optimization are gaining attention as essential components of a well-rounded fitness routine.

9. Group Fitness Challenges: Social media and fitness apps have facilitated the growth of group fitness challenges, encouraging accountability, motivation, and community support among participants.

10. Sustainable Fitness: Eco-friendly practices are becoming more prevalent in the fitness industry, with an emphasis on sustainable workout gear, environmentally conscious gym facilities, and eco-friendly workout routines.

Depending on the focus of your newsletter, you can delve deeper into one or more of these trends, provide tips and insights, showcase success stories, or offer product recommendations related to these fitness trends.