Movement Sequencing
Also known as: segment sequencing, kinematic sequence
Movement sequencing is the timed order in which body segments accelerate and decelerate through a swing — correct sequencing multiplies speed; incorrect sequencing bleeds it.
Elite performers in every swing sport share a trait sequence. This means proximal (large, central) segments peak and decelerate first, transferring momentum distally (outward) to smaller, faster segments. In golf this means pelvis → thorax → lead arm → club. Disruptions — like a torso that peaks at the same time with the pelvis rather than after it — indicate a sequencing fault. SwingVantage analyzes peak velocity timing from landmark tracking and flags segments that are out of order, labeling the finding with its confidence.
For sequencing, focus first on the hip-shoulder gap: hips should initiate the downswing before the shoulders begin to rotate. This single relationship is the most important sequencing cue and the one most visible to both internal feel and video analysis.
Measure and track your exact hip-to-shoulder sequence gap in frames across multiple sessions. Elite golfers maintain a consistent 3-6 frame gap at 120 fps. Narrowing of this gap across sessions is the most common early indicator of swing pressure or cumulative fatigue before full technique breakdown occurs.
Example
Motion Lab shows the golfer's hip velocity peaking at frame 24 and thorax velocity peaking at frame 28 — a well-sequenced 4-frame gap. A fault would be both peaking at frame 24.
How it shows up on video
Good sequencing looks smooth at real speed — the power appears without obvious muscular effort. At slow speed, the proximal-to-distal wave is explicit. This means hips decelerate. At the same time, shoulders accelerate, then shoulders decelerate. At the same time, arms accelerate, then arms decelerate as the implement fires at impact. A broken sequence shows as stiffness (everything rotating at the same time) or as a visible pause between segment transitions.
Common mistakes
- Coaching the feel of the sequence without measuring the timing. This means the gap between segments that feels correct to the athlete may still be suboptimal. Frame counts provide the objective reference.
- Focusing exclusively on the hip-shoulder gap and ignoring the shoulder-arm and arm-implement gaps — all three gaps matter and can each be on its own faulty.
- Correcting sequencing order without addressing the cause. This means if the hip-shoulder gap collapses under pressure but is correct in practice, the cause is likely tempo disruption or anxiety, not a mechanical sequencing problem per se.
- Not recognizing that sequencing faults can change with fatigue. This means a session that shows correct sequencing at the start may show degraded sequencing by the 50th swing due to muscular fatigue reducing hip rotation speed.
In SwingVantage Motion Lab
Motion Lab's movement sequencing panel shows each body segment as a separate velocity curve plotted on the same timeline. The ideal pattern creates a cascading set of peaks from left to right on the chart. A sequencing fault appears as overlapping peaks or a reversed order where a distal segment peaks before a proximal one.
Related terms
- Kinematic ChainThe kinematic chain is the sequence of body segments. This comes from ground to tip. This means through which force and speed are transferred in a swing, with each segment's energy amplifying the next.
- Landmark TrackingLandmark tracking follows the position of each detected body keypoint across consecutive video frames. This creates a time-series trajectory for every joint that enables timing and velocity measurements.
- TempoTempo is the timing relationship between the two halves of a swing — the rhythm that separates efficient, repeatable mechanics from a rushed or laboured transition.
- Ground Reaction ForceGround Reaction Force (GRF) is the force the ground exerts back against an athlete's feet. This means the foundational energy input for the kinematic chain in every swing sport.
Put this into your swing
SwingVantage can spot this in your own swing — free to start.