MIDSOLE TRANSITION TRACKER

Cadence & footstrike biomechanics · Stryd Duo · auto-updated 2026-08-10 01:45

Goal: shift toward a midfoot strike to move impact off the left knee. The lever is cadence; the evidence it's working is ground contact time and impact loading rate coming down in response — not the cadence number alone.

LAST RUNS

Date	Run	Cadence	GCT ms	Impact LR	LSS	ILR Bal
Apr 30	Lambeth - Easy Aer	142.7	341	43.0	6.6	49.7
May 2	Long Run W1 — Easy	142.8	355	39.2	6.5	49.2
May 5	Recovery Run	139.9	372	37.2	6.4	—
May 7	Aerobic Run + 4x S	145.5	340	43.4	6.5	—
May 10	Fartlek Run W2	145.3	301	—	—	—
May 11	Recovery Run	142.7	363	36.4	6.8	47.9
May 16	Progressive Run W3	144.8	336	41.2	7.1	48.6
May 18	Easy Monday Shakeo	141.0	376	35.8	6.6	48.4
May 21*	Half Marathon Run/	144.8	338	43.9	6.4	49.4
May 27	Southwark - Easy Z	139.6	371	35.9	6.8	48.8
Jun 1	Easy Aerobic Run	139.9	379	34.9	6.6	48.3
Jun 2	Easy Aerobic Run —	146.5	352	35.0	7.3	47.9
Jun 6	Easy Z2 Run — Re-e	144.7	375	30.9	7.0	46.5
Jun 25	Hot Weather Loadin	141.8	381	32.8	7.2	47.1
Jul 4	Diagnostic Test Ru	144.2	359	32.4	8.0	48.0
Jul 23	Fouesnant Running	139.4	382	35.1	6.9	48.2

* run/walk or low running fraction — shown for reference, excluded from the trend charts.

CADENCE — the lever

GROUND CONTACT & IMPACT — the evidence

Ground contact (ms) Impact loading rate — both should trend down.

Devices: Stryd Duo, Garmin. Data via Intervals.icu. Data provided by Garmin®