Whether you use joint manipulation/adjustments/HVLA techniques or have had them done, you have probably asked "what actually makes the popping or cracking sound?"
 
 In this episode I delve into the research we currently have available and see if we can come up with an answer to that question
 
 Brodeur R. The audible release associated with joint manipulation. Journal of Manipulative and Physiological Therapeutics. 1995;18(3):155-64.

Cascioli, V., Corr, P., & Till Ag, A. G. (2003). An investigation into the production of intra-articular gas bubbles and increase in joint space in the zygapophyseal joints of the cervical spine in asymptomatic subjects after spinal manipulation. Journal of manipulative and physiological therapeutics, 26(6), 356–364. https://doi.org/10.1016/S0161-4754(03)00075-7

Kawchuk GN, Fryer J, Jaremko JL, Zeng H, Rowe L, Thompson R (2015) Real-Time Visualization of Joint Cavitation. PLoS ONE 10(4): e0119470. https://doi.org/10.1371/journal.pone.0119470

Unsworth, A., Dowson, D., & Wright, V. (1971). 'Cracking joints'. A bioengineering study of cavitation in the metacarpophalangeal joint. Annals of the rheumatic diseases, 30(4), 348–358. https://doi.org/10.1136/ard.30.4.348