Speed Walking speed is only a determinant of mortality in older age or with frailty. Research indicates that walking speed, after heart failure or Alzheimer's disease and stroke (or major surgery), can predict progression of the disease as well mortality. But unless such pacing is habitually dictated rather than physically, most research suggests rate itself for long—term health; Total step count is holy grail. Practical Suggestion If you're strapped for time, if most adults hate going to the gym or older adults are using walking as an exercise: Don't plod around at a snail's pace. Specifically, even 10,000 steps taken slowly isn't much use. Try to walk at 100 steps/minute—a moderate aerobic intensity. Older Adults To find your optimal pace, calculate moderate intensity target heart rate (usually 50-70% of max) for physical activity. Posture With a lifetime of 700 million steps, even small gait errors compound into knee, hip and ankle or plantar pain over the following decades. Self-Check List 1. Spine Alignment: Stand straight and tall; head level, eyes looking directly forwards—with chin neither up nor down. 2. Shoulder Alignment: Release tension in your shoulders and avoid shrugging. Let your arms swing freely. 3. Step Length: Take steps of 60–80 cm. Balances speed, stability and reduced joint impact. 4. Footstrike: Your heel should hit the ground first, then smoothly roll to your toes—absorbing impact and reducing joint pressure. 5. Core Muscle Activation: Lightly engage core muscle groups (chest, abdomen and lower back) to hold posture—without stiffening. Top Tip On longer walks, stretch briefly every now and then to ease the muscles & get some circulation — essentially it’s a "maintenance mode" for your biomechanical system.