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STILL IN MOTION
Because slowing down isn’t in the plan.
THIS WEEK'S STORY
I used to stretch diligently after every workout. Hamstrings, hip flexors, calves, chest. I’d hold each position for thirty to sixty seconds, feel appropriately virtuous, and then go about my day.
My flexibility was decent. My mobility was terrible.
I didn’t understand the difference for a long time. I assumed that being able to touch my toes in a static stretch meant my hips and hamstrings were working well during movement. They were not.
The difference became obvious when I started working on athletic movements that required dynamic range of motion. I could passively stretch my hip into a position I couldn’t actively reach during a squat or a lunge. The range existed when someone else moved me there, or when I held a wall for twenty seconds. But my nervous system didn’t trust it. My muscles hadn’t been trained to control it.
That gap — between range you have passively and range you can use actively — is the difference between flexibility and mobility. And it matters enormously after 60, because passive range without active control is where injuries happen.
THE MAIN MESSAGE
Flexibility is the passive range of motion available to a joint. Mobility is the active, controlled range of motion you can use under load.
You can be very flexible and have poor mobility. Many people are. Hypermobile individuals are a clear example — their joints move into extreme positions, but without the muscular control to stabilize those positions, they’re actually at higher injury risk than someone with average flexibility and good control.
After 60, the goal is not to become maximally flexible. It is to develop usable range of motion in the patterns your daily life and training require. The key principles:
-- Stretching creates passive range. To convert that range into mobility, you must train at the end range — meaning you must load and control the position you’re trying to reach, not just hold it passively.
-- Active mobility work teaches the nervous system to trust the range. Static stretching reduces muscle tone temporarily, which is useful for immediate relief and pre-sleep relaxation. But it doesn’t create lasting mobility change unless followed by active movement into the newly available range.
-- The sequence matters. Stretch first to access range. Then immediately use that range in an active movement. This is the model used in professional sports preparation and it applies equally well to a 65-year-old training for quality of life.
-- Joint health requires controlled end-range exposure. Joints that are never taken to their end range lose that range over time, along with the articular cartilage health that depends on full-range fluid distribution. Sitting in one position for hours every day is a slow-motion experiment in joint degradation.
Practical example: if your hip internal rotation is limited, static stretching the hip helps temporarily. But adding a drill where you actively rotate the hip into that range — controlling the motion with your own muscles, without assistance — is what creates lasting change and teaches the body to use that range under load.
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Stretch of the Week: Active Hip Internal Rotation (Floor Drill)
Why: Hip internal rotation is one of the most commonly restricted ranges of motion in adults over 60, and one of the most consequential. Restricted hip internal rotation contributes to knee tracking problems, lower back compensation during rotation, and reduced stride length. This drill addresses it actively, not just passively.
How to do it:
Sit on the floor with legs extended straight in front of you, hands behind you for support
Keeping your right knee pointed at the ceiling, rotate the lower leg outward so the foot moves away from your body — this is hip internal rotation
Move to the end of your comfortable range and hold there for 3 seconds, feeling the deep hip engage
Return to start slowly and with control
8–10 reps per side, 2 rounds
Why it matters: The active hold at end range is what differentiates this from a passive stretch. You are training the deep hip rotators to control a position, not just reach it. Many people will find one hip dramatically more restricted than the other — that asymmetry is worth addressing systematically.
Strength Move of the Week: Split Squat (Rear Foot Elevated)
Purpose: Develops active mobility at the hip and ankle simultaneously while building single-leg strength — the combination that translates directly into better movement quality in everyday life.
How to do it:
Stand about two feet in front of a chair or bench and place the top of your rear foot on it
Lower your back knee toward the floor by bending the front knee — keep the front shin roughly vertical
Lower until the back knee is just above the floor, or as deep as comfortable with good form
Drive through the front heel to return to standing
6–8 reps per side, 2–3 sets
Key benefit: The rear-foot-elevated split squat takes the hip of the rear leg into active extension — working the hip flexor through its full range under load, which is the definition of mobility training. It simultaneously demands ankle dorsiflexion, quad strength, and balance coordination. Few exercises cover this much functional ground at once.
Modification: If the full version is too challenging initially, use a lower surface for the rear foot, or simply perform a standard rear-foot-on-floor split squat until the hip and ankle mobility develops. Depth comes with practice.
Suggested Equipment: Mobility Stick or Dowel Rod (48 inches)
Best for:
Balance assistance during split squats and single-leg movements
Overhead mobility assessment and active shoulder stretching
Posture feedback during squats (hold vertically alongside the spine)
Thoracic extension drills using the stick as a guide
Why this tool: A simple wooden dowel or mobility stick is among the most versatile and inexpensive tools in functional training. As a balance aid during mobility work, it allows you to focus on range of motion without diverting attention to not falling. As a movement guide, it provides tactile feedback that cuing alone rarely achieves.
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THE TAKEAWAY
Stretching is the beginning of mobility work, not the end of it. Passive range without active control is not functional, and at 65, functional range of motion is exactly what you’re training for. Stretch to access the range. Then immediately use it. That sequence, repeated consistently, is what actually changes how you move.
The question is not how flexible you are. It’s how much of your range you can actually use.
YOUR TURN
Do you notice a difference between how far you can stretch passively and how well you can actually move in that range during training or daily life? Where’s your biggest gap?
Reply and let me know. Issue #34 takes on a topic that affects almost everyone in this community, and your responses help me frame it right.
Still moving forward,
— The SIM60 Team
simsixty.com · Educational content only. Not medical advice.
