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Musculoskeletal Outcomes from Chronic High-Speed High-Impact Resistive Exercise

L. Chen

L. Chen

Department of Health and Sport Sciences, University of LouisvilleLouisville, KY, United States
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Chen, L.
, 
E.A. Selimovic

E.A. Selimovic

Department of Health and Sport Sciences, University of LouisvilleLouisville, KY, United States
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Selimovic, E.A.
, 
M. Daunis

M. Daunis

Department of Health and Sport Sciences, University of LouisvilleLouisville, KY, United States
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Daunis, M.
, 
T.A. Bayers T

T.A. Bayers T

Department of Health and Sport Sciences, University of LouisvilleLouisville, KY, United States
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T, T.A. Bayers
, 
L.J. Vargas

L.J. Vargas

Department of Health and Sport Sciences, University of LouisvilleLouisville, KY, United States
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Vargas, L.J.
, 
I.T. O’Brien

I.T. O’Brien

Department of Health and Sport Sciences, University of LouisvilleLouisville, KY, United States
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O’Brien, I.T.
, 
C.B. McEnroe

C.B. McEnroe

Department of Health and Sport Sciences, University of LouisvilleLouisville, KY, United States
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McEnroe, C.B.
, 
A.E. Kozerski

A.E. Kozerski

Department of Health and Sport Sciences, University of LouisvilleLouisville, KY, United States
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Kozerski, A.E.
, 
A.C. Vanhoover

A.C. Vanhoover

Department of Health and Sport Sciences, University of LouisvilleLouisville, KY, United States
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Vanhoover, A.C.
, 
W.D. Gray

W.D. Gray

Department of Health and Sport Sciences, University of LouisvilleLouisville, KY, United States
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Gray, W.D.
 and 
J.F. Caruso

J.F. Caruso

Department of Health and Sport Sciences, University of LouisvilleLouisville, KY, United States
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Caruso, J.F.
  
Jun 17, 2019
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Article Category: Research Note
Published Online: Jun 17, 2019
Page range: 22 - 32
DOI: https://doi.org/10.2478/gsr-2019-0004
Keywords
© 2019 L. Chen, E.A. Selimovic, M. Daunis, T.A. Bayers T, L.J. Vargas, I.T. O’Brien, C.B. McEnroe, A.E. Kozerski, A.C. Vanhoover, W.D. Gray, J.F. Caruso, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Figure 1

Overhead illustration of the IET. IET, Inertial Exercise Trainer.
Overhead illustration of the IET. IET, Inertial Exercise Trainer.

Figure 2

Side view illustration of the IET.IET, Inertial Exercise Trainer.
Side view illustration of the IET.IET, Inertial Exercise Trainer.

Figure 3

Timeline of subject’s involvement (current study).
Timeline of subject’s involvement (current study).

Figure 4

(a, b) Knee extension exercise performed on the IET (current study). IET, Inertial Exercise Trainer.
(a, b) Knee extension exercise performed on the IET (current study). IET, Inertial Exercise Trainer.

Figure 5

(a, b) Hip extension exercise performed on the IET (current study). IET, Inertial Exercise Trainer.
(a, b) Hip extension exercise performed on the IET (current study). IET, Inertial Exercise Trainer.

Figures 6

(a, b) Seated calf press exercise performed on the IET (current study). IET, Inertial Exercise Trainer.
(a, b) Seated calf press exercise performed on the IET (current study). IET, Inertial Exercise Trainer.

Knee extensor TTPT (mean ± SEM in seconds) results_

Velocity (rad./second)Left legRight leg
Pre-interventionPost-interventionPre-interventionPost-intervention
02.06±0.202.35±0.242.03±0.252.04±0.33
1.620.37±0.020.39±0.030.37±0.040.33±0.02
4.860.19±0.020.18±0.020.18±0.020.19±0.02

Ankle extensor PT (mean ± SEM in Nm) results_

Velocity (rad./second)Left legRight leg
Pre-interventionPost-interventionPre-interventionPost-intervention
0110.5±7.9133.7±7.5+120.6±9.0129.3±9.4
1.6263.0±5.075.0±4.4+67.6±5.071.3±5.1
4.8645.8±3.053.9±3.1+47.3±3.250.4±2.7

Ankle extensor RTD (mean ± SEM in Nm/second) results_

Velocity (rad./second)Left legRight leg
Pre-interventionPost-interventionPre-interventionPost-intervention
049.3±7.379.5±24.7*57.3±8.863.4±8.1*
1.62325.1±31.0373.0±29.4*335.4±33.8348.7±25.5*
4.86276.1±35.9365.0±60.7*277.5±29.7357.5±58.6*

Ankle extensor TTPT (mean ± SEM in seconds) results_

Velocity (rad./second)Left legRight leg
Pre-interventionPost-interventionPre-interventionPost-intervention
02.34±0.222.82±0.382.93±0.472.49±0.30
1.620.21±0.010.21±0.010.25±0.040.21±0.01
4.860.20±0.040.19±0.030.18±0.020.17±0.03

Knee extensor PT (mean ± SEM in Nm) results_

Velocity (rad./second)Left legRight leg
Pre-interventionPost-interventionPre-interventionPost-intervention
0183.1±18.3203.3±17.3+185.5±23.3192.3±24.8
1.62144.6±13.2143.2±10.9146.6±15.5146.9±16.8
4.86100.2±8.8102.6±9.099.1±9.9104.7±11.4

Knee extensor RTD (mean ± SEM in Nm/second) results_

Velocity (rad . sec-1)Left LegRight Leg
Pre-interventionPost-interventionPre-interventionPost-intervention
099.3±12.084.6±11.3109.1±17.1109.1±19.5
1.62407.5±37.3343.9±41.4446.4±56.8400.9±52.7
4.86608.5±69.1538.9±58.9664.0±96.1581.5±114.2
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