Hand position affects elbow joint load during push-up exercise

Margaret J. donkers, Kai Nan An, Edmund Y S Chao, Bernard F. Morrey

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

Electromagnetic motion sensors and a piezoelectric force plate were used to record simultaneously upper-extremity motion and forces in nine health male subjects during push-ups in six different hand positions. The intersegmental loading pattern on the elbow joint during a push-up exercise was investigated. The importance of hand position on these loads was examined. Peak forces exerted on the elbow joint along the forearm axis averaged 45% of the body weight for the 'normal' hand position and were significantly decreased if hands were positioned either 'apart' or 'superior' from 'normal'. The peak torque in the 'normal' position tended to produce elbow flexion and was 2305.9 N cm, or 56% of the maximal isometric extensor torque, which was significantly different from hands 'apart' and hand 'together' at 29 and 71% of the maximal isometric torque, respectively. The maximum torque about the forearm axis tended to produce forearm pronation with a mean value of 315.4 N cm (35% of the maximal isometric supinator torque). The maximum valgus torque at the elbow opposed by the medial ligamentous structure was 1241 N cm and was significantly increased if the hand was positioned superiorly. The valgus torque increased by 42% for the one-handed push-up under simulated fall condition. The results of this analysis give an insight into the biomechanics of a normal elbow and to its load-carrying capacity. The data may be extrapolated to the design of rehabilitation programs and possibly to the mechanisms of forearm injury during a fall.

Original languageEnglish (US)
Pages (from-to)625-632
Number of pages8
JournalJournal of Biomechanics
Volume26
Issue number6
DOIs
StatePublished - 1993

Fingerprint

Elbow Joint
Torque
Hand
Elbow
Forearm
Forearm Injuries
Pronation
Ideal Body Weight
Biomechanics
Electromagnetic Phenomena
Conservation of Natural Resources
Load limits
Biomechanical Phenomena
Upper Extremity
Patient rehabilitation
Rehabilitation
Health
Sensors

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

Cite this

donkers, M. J., An, K. N., Chao, E. Y. S., & Morrey, B. F. (1993). Hand position affects elbow joint load during push-up exercise. Journal of Biomechanics, 26(6), 625-632. https://doi.org/10.1016/0021-9290(93)90026-B

Hand position affects elbow joint load during push-up exercise. / donkers, Margaret J.; An, Kai Nan; Chao, Edmund Y S; Morrey, Bernard F.

In: Journal of Biomechanics, Vol. 26, No. 6, 1993, p. 625-632.

Research output: Contribution to journalArticle

donkers, Margaret J. ; An, Kai Nan ; Chao, Edmund Y S ; Morrey, Bernard F. / Hand position affects elbow joint load during push-up exercise. In: Journal of Biomechanics. 1993 ; Vol. 26, No. 6. pp. 625-632.
@article{b3094a71f12b4fc6b976a277a05d6fa1,
title = "Hand position affects elbow joint load during push-up exercise",
abstract = "Electromagnetic motion sensors and a piezoelectric force plate were used to record simultaneously upper-extremity motion and forces in nine health male subjects during push-ups in six different hand positions. The intersegmental loading pattern on the elbow joint during a push-up exercise was investigated. The importance of hand position on these loads was examined. Peak forces exerted on the elbow joint along the forearm axis averaged 45{\%} of the body weight for the 'normal' hand position and were significantly decreased if hands were positioned either 'apart' or 'superior' from 'normal'. The peak torque in the 'normal' position tended to produce elbow flexion and was 2305.9 N cm, or 56{\%} of the maximal isometric extensor torque, which was significantly different from hands 'apart' and hand 'together' at 29 and 71{\%} of the maximal isometric torque, respectively. The maximum torque about the forearm axis tended to produce forearm pronation with a mean value of 315.4 N cm (35{\%} of the maximal isometric supinator torque). The maximum valgus torque at the elbow opposed by the medial ligamentous structure was 1241 N cm and was significantly increased if the hand was positioned superiorly. The valgus torque increased by 42{\%} for the one-handed push-up under simulated fall condition. The results of this analysis give an insight into the biomechanics of a normal elbow and to its load-carrying capacity. The data may be extrapolated to the design of rehabilitation programs and possibly to the mechanisms of forearm injury during a fall.",
author = "donkers, {Margaret J.} and An, {Kai Nan} and Chao, {Edmund Y S} and Morrey, {Bernard F.}",
year = "1993",
doi = "10.1016/0021-9290(93)90026-B",
language = "English (US)",
volume = "26",
pages = "625--632",
journal = "Journal of Biomechanics",
issn = "0021-9290",
publisher = "Elsevier Limited",
number = "6",

}

TY - JOUR

T1 - Hand position affects elbow joint load during push-up exercise

AU - donkers, Margaret J.

AU - An, Kai Nan

AU - Chao, Edmund Y S

AU - Morrey, Bernard F.

PY - 1993

Y1 - 1993

N2 - Electromagnetic motion sensors and a piezoelectric force plate were used to record simultaneously upper-extremity motion and forces in nine health male subjects during push-ups in six different hand positions. The intersegmental loading pattern on the elbow joint during a push-up exercise was investigated. The importance of hand position on these loads was examined. Peak forces exerted on the elbow joint along the forearm axis averaged 45% of the body weight for the 'normal' hand position and were significantly decreased if hands were positioned either 'apart' or 'superior' from 'normal'. The peak torque in the 'normal' position tended to produce elbow flexion and was 2305.9 N cm, or 56% of the maximal isometric extensor torque, which was significantly different from hands 'apart' and hand 'together' at 29 and 71% of the maximal isometric torque, respectively. The maximum torque about the forearm axis tended to produce forearm pronation with a mean value of 315.4 N cm (35% of the maximal isometric supinator torque). The maximum valgus torque at the elbow opposed by the medial ligamentous structure was 1241 N cm and was significantly increased if the hand was positioned superiorly. The valgus torque increased by 42% for the one-handed push-up under simulated fall condition. The results of this analysis give an insight into the biomechanics of a normal elbow and to its load-carrying capacity. The data may be extrapolated to the design of rehabilitation programs and possibly to the mechanisms of forearm injury during a fall.

AB - Electromagnetic motion sensors and a piezoelectric force plate were used to record simultaneously upper-extremity motion and forces in nine health male subjects during push-ups in six different hand positions. The intersegmental loading pattern on the elbow joint during a push-up exercise was investigated. The importance of hand position on these loads was examined. Peak forces exerted on the elbow joint along the forearm axis averaged 45% of the body weight for the 'normal' hand position and were significantly decreased if hands were positioned either 'apart' or 'superior' from 'normal'. The peak torque in the 'normal' position tended to produce elbow flexion and was 2305.9 N cm, or 56% of the maximal isometric extensor torque, which was significantly different from hands 'apart' and hand 'together' at 29 and 71% of the maximal isometric torque, respectively. The maximum torque about the forearm axis tended to produce forearm pronation with a mean value of 315.4 N cm (35% of the maximal isometric supinator torque). The maximum valgus torque at the elbow opposed by the medial ligamentous structure was 1241 N cm and was significantly increased if the hand was positioned superiorly. The valgus torque increased by 42% for the one-handed push-up under simulated fall condition. The results of this analysis give an insight into the biomechanics of a normal elbow and to its load-carrying capacity. The data may be extrapolated to the design of rehabilitation programs and possibly to the mechanisms of forearm injury during a fall.

UR - http://www.scopus.com/inward/record.url?scp=0027610283&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0027610283&partnerID=8YFLogxK

U2 - 10.1016/0021-9290(93)90026-B

DO - 10.1016/0021-9290(93)90026-B

M3 - Article

C2 - 8514808

AN - SCOPUS:0027610283

VL - 26

SP - 625

EP - 632

JO - Journal of Biomechanics

JF - Journal of Biomechanics

SN - 0021-9290

IS - 6

ER -