Ann Rehabil Med.  2018 Apr;42(2):346-351. 10.5535/arm.2018.42.2.346.

Amount of Weight-Bearing During Tilt Table Inclination, With Neutral and Unilateral Knee Flexion Postures

Affiliations
  • 1Department of Rehabilitation Medicine, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea. drshinmj@gmail.com
  • 2Department of Orthopaedic Surgery, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea.

Abstract


OBJECTIVE
To analyze the amount of weight-bearing during tilt table increments, with a review of neutral and unilateral knee flexion postures.
METHODS
There were 17 healthy participants enrolled in this study. The subjects were tilted from 10° to 90°, and their body weight was measured at each 10° increment. In the first test, both plantar pressures, with the subjects in neutral posture, were recorded. During the second and third tests, the angle of inclination was thus recorded and increased, with the subjects in unilateral knee flexion posture; flexion was maintained at 25° by attaching a cylindrical support to the tilt table at the level of the popliteal fossa.
RESULTS
The study was divided into two types of postures: neutral and unilateral knee flexion. The percentage of body weight (%BW) between each leg during neutral posture was noted as not being statistically significant. The %BW of one side during tilt table inclination was significantly different between the two postures at 10° to 80° (p < 0.05). The weight during unilateral knee flexion posture was lower as analyzed, regardless of tilt table inclination compared with that in neutral posture. We note that fifty percent of the ratio of %BW was noted at 33.12° and 38.76° in neutral and flexion postures, respectively.
CONCLUSION
The unilateral knee flexion could induce the effect of decreased body weight compared with non-flexion side. The results of this study will help in setting a safe and quantitative percentage of weight-bearing on the lower extremity during tilt training.

Keyword

Weight-bearing; Lower extremity; Fracture; Orthopedics; Rehabilitation

MeSH Terms

Body Weight
Healthy Volunteers
Knee*
Leg
Lower Extremity
Orthopedics
Posture*
Rehabilitation
Weight-Bearing*

Figure

  • Fig. 1 Unilateral knee flexion posture during tilt table standing.

  • Fig. 2 Regression equation describing the relationship between percentage of body weight (%BW) and tilt table angle in the neutral posture (A) and the unilateral knee flexion (25°) posture (B).


Reference

1. Murphy DF, Connolly DA, Beynnon BD. Risk factors for lower extremity injury: a review of the literature. Br J Sports Med. 2003; 37:13–29. PMID: 12547739.
Article
2. Kubiak EN, Beebe MJ, North K, Hitchcock R, Potter MQ. Early weight bearing after lower extremity fractures in adults. J Am Acad Orthop Surg. 2013; 21:727–738. PMID: 24292929.
Article
3. Meadows TH, Bronk JT, Chao YS, Kelly PJ. Effect of weight-bearing on healing of cortical defects in the canine tibia. J Bone Joint Surg Am. 1990; 72:1074–1080. PMID: 2384507.
Article
4. Han TR, Bang MS, Jung SG. Rehabilitation medicine. Seoul: Koonja;2014.
5. O'Young B, Young MA, Stiens SA. Physical medicine and rehabilitation secrets. 3rd ed. Philadelphia: Mosby/Elsevier;2008.
6. Hustedt JW, Blizzard DJ, Baumgaertner MR, Leslie MP, Grauer JN. Current advances in training orthopaedic patients to comply with partial weight-bearing instructions. Yale J Biol Med. 2012; 85:119–125. PMID: 22461750.
7. Vasarhelyi A, Baumert T, Fritsch C, Hopfenmüller W, Gradl G, Mittlmeier T. Partial weight bearing after surgery for fractures of the lower extremity: is it achievable? Gait Posture. 2006; 23:99–105. PMID: 16311201.
8. Son SM, Lee JH, Cha YJ. Comparison of the plantar pressure distributions at different degrees of tilting: a preliminary report. J Phys Ther Sci. 2014; 26:401–403. PMID: 24707092.
9. Morgan CL, Cullen GP, Stokes M, Swan AV. Effects of knee joint angle and tilt table incline on force distribution at the feet and supporting straps. Clin Rehabil. 2003; 17:871–878. PMID: 14682559.
Article
10. Sheldon MR. Comparison of two methods for calculating percent body weight on a tilt table. J Orthop Sports Phys Ther. 1994; 19:18–21. PMID: 8156058.
Article
11. Mavcic B, Antolic V. Optimal mechanical environment of the healing bone fracture/osteotomy. Int Orthop. 2012; 36:689–695. PMID: 22302177.
12. DiStasio AJ, Jaggears FR, DePasquale LV, Frassica FJ, Turen CH. Protected early motion versus cast immobilization in postoperative management of ankle fractures. Contemp Orthop. 1994; 29:273–277. PMID: 10150249.
Article
13. van Lieshout R, Pisters MF, Vanwanseele B, de Bie RA, Wouters EJ, Stukstette MJ. Biofeedback in partial weight bearing: usability of two different devices from a patient's and physical therapist's perspective. PLoS One. 2016; 11:e0165199. PMID: 27798674.
Article
14. Nambiar M, West LR, Bingham R. AO Surgery Reference: a comprehensive guide for management of fractures. Br J Sports Med. 2017; 51:545–546. PMID: 27539506.
Article
15. Yuk GC. Pressure on sacrum and buttock according to tilt table inclination. J Korean Phys Ther. 2013; 25:71–75.
16. Kim JS, Kang SY, Kim JK. Weight bearing study using digital scales in hemiplegic patients. J Korean Acad Rehabil Med. 2000; 24:1055–1060.
17. Foo J, Paterson K, Williams G, Clark R. Low-cost evaluation and real-time feedback of static and dynamic weight bearing asymmetry in patients undergoing inpatient physiotherapy rehabilitation for neurological conditions. J Neuroeng Rehabil. 2013; 10:74. PMID: 23849318.
Article
Full Text Links
  • ARM
Actions
Cited
CITED
export Copy
Close
Share
  • Twitter
  • Facebook
Similar articles
Copyright © 2024 by Korean Association of Medical Journal Editors. All rights reserved.     E-mail: koreamed@kamje.or.kr