Related Experiment Video
Updated: Jun 5, 2026
In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy
Published on: July 2, 2021
Force-time characteristics of hip high velocity, low amplitude manipulation in asymptomatic adults: with and without
Mohsen Kazemi1, Shivarny Maheswaran1, Grand Choi1
1Canadian Memorial Chiropractic College, Division of Academics, Graduate Studies and Research, Toronto, ON.
Objectives:
To describe the force-time characteristics of HVLA hip manipulation (HVLA-HM) with (DP) and without (NDP) a drop-piece.
Methods:
Twenty asymptomatic participants (22-28 years; 60% female) received 3 whip HVLA-HM (DP) on one hip and 3 whip HVLA-HM (NDP) on the other. Force-time characteristics were collected using Force-Sensing Table Technology (FSTT®) and analyzed descriptively.
Results:
On average, HVLA-HM (DP) had a 1st peak force initiation of 40N (±19), peak force of 637N (±218), time to 1st peak of 62ms (±26), loading rate of 10763N/s (±5042) and 2nd peak force of 197N (±85). HVLA-HM (NDP) had a 1st peak force initiation of 36N (±23), peak force of 567N (±290), time to 1st peak of 63ms (±22), loading rate of 9465N/s (±5966) and 2nd peak force of 197N (±82).
Conclusion:
Forces during these techniques present with slightly higher peak forces and loading rates during HVLA-HM (DP) at the patient-table interface.
