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Table 2 Summary of studies reporting on the force-time characteristics of spinal manipulation (SM) delivered to the cervical spine of humans (n = 9) and inanimate objects (e.g. human analogue manikins, instrumented tools) (n = 3)

From: Spinal manipulation characteristics: a scoping literature review of force-time characteristics

Author/s

Year, Country

SM delivery

Profession (n)

Experience

Recipient/s (n)

Location/s

Technique/s

Interface/s

Measurement equipment

Metrological data

Humans

Kawchuk et al.

1992, Canada40

Clin

Chiro (2)

> 5y

NR (2)

C1/C2

Toggle

Clin-pat

Force pad

No

Herzog et al.

1993, Canada35

Clin

Chiro (60)

NR

NR (58)

Cervical

Lateral-medial

Clin-pat

Force pad

No

Kawchuk et al.

1993, Canada41

Clin

Chiro (5)

NR

NR (NR)

NR

Lateral break/ Gonstead/Toggle/Rotation

Clin-pat

Force pad

No

Van Zoest et al.

2003, England65

Clin

Chiro (2)

> 5y

Adult (10)

Mid cervical

Diversified

Clin-pat

Force sensor

Yes

Symons et al.

2012, Canada57

Clin

Chiro (2)

> 5y

Mixed (33)

Living: 28

Cadavers: 5

Living: MP

Cadavers: C2-3/ C4-5

Diversified

Clin-pat

Pressure pad

No

Anderst et al.

2018, USA4

Clin

Chiro (1)

> 5y

Adult (5)

C3/C4/C5

Pillar push

Clin-pat

Pressure pad

No

Gorrell et al.

2020, Canada29

Clin

Chiro (1)

> 5y

Adult (27)

C1/C2/C6/ C7

Diversified

Clin-pat

Pressure pad

No

Duquette et al.

2021, Canada23

Stud

Chiro (76)

NR (4th y)

Mixed ages (76)

NR

Lateral index/ pillar push

Pat-table

Force plate

No

Chang et al.

2022, China10

Clin

MD (1)

> 5y

Adult (34)

C5

Seated resisted rotation

Clin-pat

Mechanical measurement system

No

Inanimate objects

Graham et al.

2010, Australia30

Clin & Stud

Chiro (13)

Clin: >5y

Stud: NR (5th y)

Load cell (1)

NR

Toggle-recoil

Clin-tool

Load cell

No

Triano et al.

2017, Canada64

Clin

Chiro (1)

> 5y

Manikin (1)

Cervical

Supine

rotational

Clin-man

& Man-table

Load cell & Force plate

Yes

Duquette et al.

2021, Canada23

Stud

Chiro (76)

NR (4th y)

Manikin (1)

NR

Lateral index/ pillar push

Man-table

Force plate

No

  1. All superscript numbers in the first column refer to Appendix 2. Abbreviations: C: cervical, Chiro: chiropractor, Clin: clinician, Man: manikin, MD: medical doctor, Mixed: experience of clinicians both > and < 5 years, MP: most painful level, (n): number of participants, NR: not reported, Pat: patient, SM: spinal manipulation, Stud: students, y: years, >: greater than