The 40+ Athlete: Why You Need to Keep Your 'Snap'
If you look at typical fitness advice for people over forty, it usually sounds like a suggestion to start winding down. You’re told to focus on "low-impact" cardio and gentle stretching. The underlying assumption is that once you hit your fifth decade, your body is a fragile machine that can no longer handle intensity. At CrossFit Chiltern, we see this as a biological mistake. While chronological ageing is inevitable, the loss of agility and "snap" is largely a result of stopping the very activities that keep you young. Specifically, it is the loss of your Type II (Fast-Twitch) muscle fibres.
The Loss of the "Snap"
Muscle fibres generally fall into two categories: Type I (Slow-Twitch), which are built for endurance, and Type II (Fast-Twitch), which are built for speed and power. As we age, the body tends to selectively "prune" the Type II fibres if they aren't being used. This is why you see people move more slowly as they age—not because their heart can't pump blood, but because their nervous system has lost the ability to recruit power quickly. This loss of "snap" is a primary reason for falls and the inability to "catch yourself" in a crisis.
Training for Snap
To protect these fibres, we need to provide a clear signal to the nervous system. In the box, we do this through:
- Olympic Lifting: Movements like the Clean and the Snatch force your nervous system to fire muscle fibres simultaneously.
- Plyometrics: Jumping onto a box or performing a kettlebell swing teaches your tendons to act like springs. We want your body to stay "bouncy" rather than "brittle."
- Short Intervals: Pushing your heart rate for a short, sharp window triggers the hormonal response needed to maintain high-density muscle tissue.
Reclaim your power. Build the buffer. Stay Chiltern Strong.