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Table 3 Summary of force-time characteristics reported by region for studies reporting on spinal manipulation (SM) (n = 66)

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

 

Location of measurement

n (%)

Metrologic data reported

n (%)

Preload force reported

range (N)

Peak force

reported

range (N)

Rate of force application reported range (N/s)

Time to peak reported

range (ms)

Thrust duration reported

range (ms)

Cervical spine (n = 12)

Humans

(n = 9)

Clinician-patient: 8 (88.9)

1 (11.1)

0-162

41–407

440–1787

30–195

90–130

Patient-table: 1 (11.1)

0

10–13

47–49

NR

NR

NR

Inanimate objects (n = 3)

Clinician-tool: 1 (33.3)

0

0–5

18–246

NR

20–100

NR

Man-table: 1 (33.3)

0

19–23

123–126

NR

NR

NR

Both: 1 (33.3)

1 (33.3)

NR

20–112

NR

NR

NR

Thoracic spine (n = 40)

Humans

(n = 27)

Clinician-patient: 11 (40.7)

1 (3.7)

0-254

212–573

416–7000

108–541

318–1330

Patient-table: 9 (33.3)

5 (18.5)

41–671

290–878

1769–8700

91–280

120–310

Both: 4 (14.8)

Clinician-patient

Patient-table

3 (11.1)

260–273

217–310

470–1213

463–1044

1645–3109

1639–15,592*

165–181

96–170

NR

NR

Clinician-ground: 2 (7.4)

0

338–399

564–658

NR

NR

NR

Accelerometers: 1 (3.7)

0

NR

NR

NR

NR

61

Inanimate objects (n = 13)

Man-table: 5 (38.5)

3 (23.1)

137–172

337–536

2381–3490

109–137

87–198

Within man: 1 (7.7)

0

105–133

287–304

1473–2495

82–132

NR

Within man & clinician-ground: 4 (30.8)

0

31–177

404–660

2557–4487

101–266

NR

Clinician-man & man-table: 1 (7.7)

1 (7.7)

NR

17–393

NR

NR

NR

NR: 2 (15.4)

0

13–254

212–563

416–3780

109–541

318–1330

Lumbopelvic spine (n = 19)

Humans

(n = 12)

Clinician-patient: 5 (41.7)

1 (8.3)

20–190

106–550

202–1621

164–938

200–2876

Patient-table: 4 (33.3)

0

NR

128–516

630–3813

NR

320–440

Both: 1 (8.3)

0

NR

242–940

NR

243

NR

Clinician-patient & clinician-ground: 1 (8.3)

0

106

328

1078

261

770

Accelerometers: 1 (8.3)

0

NR

NR

NR

NR

139

Inanimate objects (n = 7)

Clinician-man/tool: 3 (42.9)

0

94.4

433

2692

154

41–574

Man-table: 2 (28.6)

0

95–163

324–714

2450–4640

142–176

NR

Both: 1 (14.3)

1 (14.3)

NR

18–387

NR

NR

NR

Clinician-man & clinician-man 1 (14.3)

0

NR

NR

NR

NR

371–441

No region reported (n = 6)

Inanimate objects (n = 6)

Clinician-tool: 6 (100.0)

0

9–77

46–387

551–1692§

12–251

36–98

  1. Note: in instances where only one value is reported, data were only reported by one study. Abbreviations: Both: clinician-patient/equipment & patient/equipment-table, equip: equipment, man: manikin, ms: milliseconds, n: number of studies, N: Newtons, NR: not reported, s: seconds, tool: something to which SM was delivered (e.g. load cell), *: 15,592 N/s reported, likely a mistake [29], §: this is reported as N/ms, likely a mistake [30]