Study on the Recognition of Exercise Intensity and Fatigue on Runners Based on Subjective and Objective Information
<p>Experimental equipment and recording scene.</p> "> Figure 2
<p>Experimental progress.</p> "> Figure 3
<p>(<b>a</b>) shows the trend of %HRR in standard time and (<b>b</b>) shows the correlation between %HRR and T% in the incremental load experiment.</p> "> Figure 4
<p>(<b>a</b>) shows the trend of MPF (<math display="inline"><semantics> <mrow> <mover> <mi mathvariant="normal">x</mi> <mo>¯</mo> </mover> </mrow> </semantics></math> ± s) on RF, BF, and (<b>b</b>) shows the trend of MPF (<math display="inline"><semantics> <mrow> <mover> <mi mathvariant="normal">x</mi> <mo>¯</mo> </mover> </mrow> </semantics></math> ± s) on TA, GAL in the incremental load experiment.</p> "> Figure 5
<p>(<b>a</b>) shows the trend of RMS (<math display="inline"><semantics> <mrow> <mover> <mi mathvariant="normal">x</mi> <mo>¯</mo> </mover> </mrow> </semantics></math> ± s) on RF, BF, and (<b>b</b>) shows the trend of RMS (<math display="inline"><semantics> <mrow> <mover> <mi mathvariant="normal">x</mi> <mo>¯</mo> </mover> </mrow> </semantics></math> ± s) on TA, GAL in the incremental load experiment.</p> "> Figure 6
<p>The trend of percentage heart rate reserve (%HRR) in standardized time in the constant load experiment.</p> "> Figure 7
<p>The correlation between %HRR and subjective fatigue RPE in the constant load experiment.</p> "> Figure 8
<p>(<b>a</b>) shows the trend of MPF (<math display="inline"><semantics> <mrow> <mover> <mi mathvariant="normal">x</mi> <mo>¯</mo> </mover> </mrow> </semantics></math> ± s) on RF, BF, and (<b>b</b>) shows the trend of MPF (<math display="inline"><semantics> <mrow> <mover> <mi mathvariant="normal">x</mi> <mo>¯</mo> </mover> </mrow> </semantics></math> ± s) on TA, GAL in standardized time in the constant load experiment.</p> "> Figure 9
<p>(<b>a</b>) shows the trend of RMS (<math display="inline"><semantics> <mrow> <mover> <mi mathvariant="normal">x</mi> <mo>¯</mo> </mover> </mrow> </semantics></math> ± s) on RF, BF, and (<b>b</b>) shows the trend of RMS (<math display="inline"><semantics> <mrow> <mover> <mi mathvariant="normal">x</mi> <mo>¯</mo> </mover> </mrow> </semantics></math> ± s) on TA, GAL in standardized time in the constant load experiment.</p> ">
Abstract
:1. Introduction
2. Experiment Design
2.1. Subjects
2.2. Data Acquisition
2.2.1. sEMG Signal Acquisition
2.2.2. Heart Rate Signal Acquisition
2.2.3. RPE Subjective Scale Value Collection
2.3. Experimental Process
2.3.1. Collection of Resting Heart Rate
2.3.2. Pre-Running Exercise Guidance and Warm-Up
2.3.3. The Incremental Load Running Exhaustion Experiment and Data Acquisition
2.3.4. The Constant Load Running Exhaustion Experiment and Data Acquisition
2.3.5. Data Processing and Analysis
3. Results
3.1. The Incremental Load Exhaustion Experiment
3.1.1. Change Characteristics of %HRR in the Incremental Load Exhaustion Experiment
3.1.2. Change Characteristics of MPF in the Incremental Load Exhaustion Experiment
3.1.3. Change Characteristics of RMS in the Incremental Load Exhaustion Experiment
3.2. The Constant Load Exhaustion Experiment
3.2.1. Change Characteristics of %HRR in the Constant Load Exhaustive Experiment
3.2.2. Change Characteristics of MPF in the Constant Load Exhaustive Experiment
3.2.3. Change Characteristics of RMS in the Constant Load Exhaustive Experiment
4. Discussion
4.1. Analysis and Discussion on the Experimental Results of sEMG Signal
4.1.1. Analysis and Discussion on the Results of the Frequency Domain Indicator (MPF) of the sEMG Signal
4.1.2. Analysis and Discussion of the Results of the Time-Domain Indicator (RMS) of the sEMG Signal
4.2. Analysis and Discussion of the Experimental Results of %HRR
4.2.1. Analysis of the Relationship between %HRR and Exercise Intensity
4.2.2. Analysis of the Relationship between %HRR and Exercise Fatigue
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Number of Subjects | Age (Years) | Height (cm) | Weight (kg) | Resting Heart Rate (Beats/min) |
---|---|---|---|---|
12 | 25.25 ± 1.93 | 173.83 ± 1.75 | 67.25 ± 3.91 | 76.17 ± 8.28 |
Name of the Target Muscle | RF | BF | TA | GAL |
---|---|---|---|---|
Electrode location |
Evaluation Grade | Subjective Exercise Intensity | Subjective Exercise Fatigue |
---|---|---|
6 | Almost no exercise intensity | Not hard at all |
7 | Extremely relaxed | |
8 | ||
9 | Very low exercise intensity | Very relaxed |
10 | ||
11 | Low exercise intensity | Relaxed |
12 | ||
13 | Appropriate exercise intensity | A little tired |
14 | ||
15 | Tired | |
16 | High exercise intensity | |
17 | Secondary maximum intensity | Very tired |
18 | ||
19 | Maximum intensity | Extremely tired |
20 | Try the best |
MPF of RF | MPF of BF | MPF of TA | MPF of GAL | |
---|---|---|---|---|
Spearman’s Rho | 0.368 * | 0.364 * | 0.179 | 0.336 |
Sig.(2-tailed) | 0.047 | 0.029 | 0.524 | 0.069 |
RMS of RF | RMS of BF | RMS of TA | RMS of GAL | |
---|---|---|---|---|
Spearman’s Rho | −0.514 * | −0.050 | 0.132 | −0.029 |
Sig.(2-tailed) | 0.050 | 0.860 | 0.639 | 0.919 |
MPF of RF | MPF of BF | MPF of TA | MPF of GAL | |
---|---|---|---|---|
Spearman’s Rho | 0.221 * | −0.043 | 0.018 | 0.093 |
Sig.(2-tailed) | 0.039 | 0.879 | 0.950 | 0.742 |
RMS of RF | RMS of BF | RMS of TA | RMS of GAL | |
---|---|---|---|---|
Spearman’s Rho | −0.279 | −0.096 | −0.432 * | −0.107 |
Sig.(2-tailed) | 0.315 | 0.372 | 0.031 | 0.704 |
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Chai, G.; Wang, Y.; Wu, J.; Yang, H.; Tang, Z.; Zhang, L. Study on the Recognition of Exercise Intensity and Fatigue on Runners Based on Subjective and Objective Information. Healthcare 2019, 7, 150. https://doi.org/10.3390/healthcare7040150
Chai G, Wang Y, Wu J, Yang H, Tang Z, Zhang L. Study on the Recognition of Exercise Intensity and Fatigue on Runners Based on Subjective and Objective Information. Healthcare. 2019; 7(4):150. https://doi.org/10.3390/healthcare7040150
Chicago/Turabian StyleChai, Guozhong, Yinghao Wang, Jianfeng Wu, Hongchun Yang, Zhichuan Tang, and Lekai Zhang. 2019. "Study on the Recognition of Exercise Intensity and Fatigue on Runners Based on Subjective and Objective Information" Healthcare 7, no. 4: 150. https://doi.org/10.3390/healthcare7040150