Joint Loading in the Lower Extremities during Elliptical Exercise

Lu, Tung‐Wu; Chien, Hsiung–Fei; Chen, Hao‐Ling

doi:10.1249/mss.0b013e3180dc9970

Cited by 68 publications

(68 citation statements)

References 27 publications

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“…The elliptical has an inclination range of 13-40 degrees (CrossRamp® setting [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] and a resistance setting range from levels 1 to 20 (lowest setting used). The model did not have arm levers; thus the movement of the pedals was a result of the lower extremities only.…”

Section: Instrumentationmentioning

confidence: 99%

“…Previous research has focused on the physiological response to exercise on the elliptical trainer, showing that it produces similar cardiorespiratory responses, such as maximal oxygen consumption, to treadmill running [2][3]. However, little is known about the biomechanics of the elliptical stride, with very few studies evaluating how closely the elliptical trainer actually mimics the kinematics and kinetics of running or walking [4].…”

Section: Introductionmentioning

confidence: 99%

“…Investigations on the lower extremity movements and forces produced during exercise on the elliptical trainer have shown the closed-chain elliptical motion does produce lower impact forces than treadmill running, and peak vertical reaction forces appear to be similar during elliptical exercise and walking [4]. Although the specific elliptical trainer model and exercise bout machine settings were not reported, Porcari, Zedaker, Naser, and Miller [4][5][6] found that pedal reaction forces (PRF) during elliptical exercise were similar to treadmill walking but not running with sixteen adult subjects at a self-selected pace.…”

Section: Introductionmentioning

confidence: 99%

“…Although the specific elliptical trainer model and exercise bout machine settings were not reported, Porcari, Zedaker, Naser, and Miller [4][5][6] found that pedal reaction forces (PRF) during elliptical exercise were similar to treadmill walking but not running with sixteen adult subjects at a self-selected pace. Lu, Chien and Chen and Lu and Chien [4,5] examined overground walking and elliptical striding of male adults. Mean peak vertical PRF was less for the elliptical than mean vertical ground reaction force (GRF) walking.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Ramp Position on Joint Biomechanics During Elliptical Trainer Exercise

Knutzen¹,

McLaughlin²,

Lawson³

et al. 2014

TOSSJ

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Introduction:The elliptical trainer, developed to simulate running while minimizing joint loads, elicits a unique lower extremity biomechanical response. The purpose of this study was to examine the angular kinematics, peak net joint moments, and peak joint powers at the hip, knee and ankle joints while exercising at three different ramp settings on the elliptical trainer exercise machine (Precor EFX).Methods: Twenty-six healthy individuals with no history of lower extremity injury and with previous experience exercising on an elliptical trainer volunteered for this study. Motion was captured with two cameras as subjects performed exercise at three ramp conditions. The pedal resistance was kept constant at the lowest setting. The pedals of the elliptical were fitted with three orthogonal load cells. Video and force data were synchronized and used to perform a 2D inverse dynamics analysis.Results: As the ramp inclination increased, subjects demonstrated greater amounts of ankle dorsiflexion, knee flexion, hip flexion and lesser degrees of plantar flexion and hip extension (p <.000). Mean peak moments at the ankle joint were not significantly different across the ramp settings, but peak knee extensor and hip flexor moments increased while knee flexor and hip extensor at the hip decreased (p <.000). As the ramp inclination increased, peak positive power at both the knee and hip significantly decreased and negative power decreased at the knee joint (p <.000), though the effect size for these changes was small. Conclusions:The hip and knee joints were observed as the primary sources of power during exercise on the elliptical trainer at the lowest resistance setting.

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Section: Instrumentationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of Ramp Position on Joint Biomechanics During Elliptical Trainer Exercise

Knutzen¹,

McLaughlin²,

Lawson³

et al. 2014

TOSSJ

View full text Add to dashboard Cite

show abstract

“…In vivo knee loads (e.g. resultant joint contact and muscle forces) have been estimated using rigid body dynamics supplemented with pedal force measurements during bicycling [20,21,22], and elliptical training [23,24,25], and measured in vitro or in vivo using pressure sensitive film (during bicycling) [26] and instrumented prostheses (during bicycling and elliptical training) [27]. An extensive literature search produces only 1 previous FE modeling study, published as a conference paper [28], that predicted knee-joint OC tissue stress for stationary bicycling or elliptical exercises.…”

Section: Past Workmentioning

confidence: 99%

Development and validation of a human knee joint finite element model for tissue stress and strain predictions during exercise

Wangerin¹

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Measuring three‐dimensional tibiofemoral kinematics using dual‐slice real‐time magnetic resonance imaging

et al. 2019

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Purpose The purpose of this study is to propose and evaluate a slice‐to‐volume registration (SVR) method integrating an advanced dual‐slice real‐time magnetic resonance image (MRI) and three‐dimensional (3D) MRI volume of the tibiofemoral joint for determining their 3D kinematics. Methods The real‐time and 3D MRI of the knee were collected from 12 healthy adults at 5 static flexion positions and during dynamic flexion/extension movement. The 3D positions and orientations of the femur and tibia were obtained by registering their volumetric models constructed from the 3D MRI to dual‐slice real‐time MRI using an optimization process. The proposed method was quantitatively evaluated for its performance in terms of the robustness and measurement accuracy, and compared to those of a single‐slice SVR method. Its repeatability in measuring knee kinematics during flexion/extension movement was also determined. Results In comparison to the single‐slice SVR method, the dual‐slice method was significantly superior, giving a successful registration rate > 95%, a bias less than 0.5 mm in translations and 0.6° in rotations and a precision <0.7 mm in translations and 0.9° in rotations for determining the 3D tibiofemoral poses. For repeatability of the dual‐slice SVR in measuring tibiofemoral kinematics during dynamic flexion/extension, the means of the time‐averaged standard deviations were <0.9° for joint angles and 0.5 mm for joint translations. Conclusion A dual‐slice SVR method in conjunction with real‐time MRI has been developed and evaluated for its performance in measuring 3D kinematics of the tibiofemoral joint in 12 young adults in terms of the accuracy, robustness, and repeatability. The proposed MRI‐based 3D measurement method provides a noninvasive and ionizing radiation‐free approach for 3D kinematic measurement of the tibiofemoral joint, which will be helpful for future academic and clinical applications.

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Joint Loading in the Lower Extremities during Elliptical Exercise

Cited by 68 publications

References 27 publications

Influence of Ramp Position on Joint Biomechanics During Elliptical Trainer Exercise

Influence of Ramp Position on Joint Biomechanics During Elliptical Trainer Exercise

Development and validation of a human knee joint finite element model for tissue stress and strain predictions during exercise

Measuring three‐dimensional tibiofemoral kinematics using dual‐slice real‐time magnetic resonance imaging

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