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Article

Urinary Metabolites Variation After High-Intensity Rowing Training and Potential Biomarker Screening for Exercise-Induced Muscle Damage

1
Department of Physical Education, Beijing Institute of Technology, Zhuhai 519000, China
2
School of Life Science, Beijing Institute of Technology, Beijing 100081, China
3
Key Laboratory of Molecular Medicine and Biotherapy, Ministry of Industry and Information Technology, Beijing Institute of Technology, Beijing 100081, China
4
School of Kinesiology and Health, Capital University of Physical Education and Sports, Beijing 100191, China
5
School of Medical Technology, Beijing Institute of Technology, Beijing 100081, China
6
Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2025, 26(16), 7897; https://doi.org/10.3390/ijms26167897
Submission received: 12 May 2025 / Revised: 24 June 2025 / Accepted: 5 August 2025 / Published: 15 August 2025
(This article belongs to the Special Issue Biological and Molecular Aspects of Exercise Adaptation)

Abstract

Exercise-induced muscle damage (EIMD) is the most common health risk in physical exercise. However, instant and non-invasive methods for EIMD prediction have not been reported. Urine is a promising tool for EIMD prediction. However, urinary metabolite variations after EIMD occurrence have not been revealed, and potential biomarkers have not been identified. In this study, eighteen young students without regular exercise habits were recruited to perform high-intensity rowing exercise. EIMD occurrence was determined using blood biochemical analyses and pain assessment. The changes in urinary metabolites were revealed by quasi-targeted metabolomics. Results demonstrated that high-intensity rowing exercise induced EIMD and obviously changed urinary metabolites, including 23 upregulated metabolites and 26 downregulated metabolites. These differential metabolites were related to energy metabolism, exercise performance, and antioxidant metabolism. Among these metabolites, potential urinary biomarkers were identified with high sensitivity and specificity.

1. Introduction

Exercise is an effective way of promoting health, preventing chronic diseases, and aiding in post-illness recovery [1]. However, exercise may also induce health risks, the most common of which is exercise-induced muscle damage (EIMD) [2]. EIMD mainly occurs in high-density or unaccustomed training, and the occurrence is strongly related to high-intensity eccentric contraction of skeletal muscles [3]. The eccentric contraction may result in sarcomere overstretching and damage to cellular integrity [3]. Additionally, the eccentric contraction may induce intracellular Ca2+ overload and free radical increase, resulting in rapid protein hydrolysis and cell membrane damage [3,4]. The eccentric contraction may also trigger immune responses, leading to the degradation of damaged cells [3]. Delayed onset muscle soreness (DOMS) represents the prevailing phenotype of EIMD, typically appearing 24 h after exercise and resulting in obvious strength loss in a few days [5]. Severe EIMD may result in rhabdomyolysis, posing high risks of renal complications [3]. Therefore, EIMD prediction, especially in the early stage, is crucial for ensuring exercise health and mitigating exercise-related risks.
DOMS is the most common phenotype of EIMD, but it is unsuitable for early diagnosis due to delayed onset. EIMD is typically accompanied by localized edema and swelling, but the two symptoms are also delayed [5]. Thus far, diagnosing EIMD is mainly based on blood biochemical index analyses [6]. Once muscle cells are damaged in EIMD, intracellular creatine kinase (CK) is released, leading to significantly elevated levels of CK in blood [7]. Therefore, CK has been used as an indicator of EIMD. However, increased CK levels are also observed in some other diseases, e.g., infections [8], reducing the specificity for diagnosing EIMD. To increase the accuracy of EIMD diagnosis, oxidative stress and immune response observation were recommended [9]. However, the diagnostic criteria for oxidative stress responses are ambiguous [10], and the use of immune factors also lacks specificity [11]. Most importantly, all of these indexes rely on blood sampling, which requires professional technicians, and may interfere with exercise and even induce secondary infections [12]. Therefore, blood biochemical analysis is unsuitable for EIMD prediction, especially for public fitness.
Compared with blood biochemical analysis, non-invasive methods for EIMD prediction show great prospects. Recent studies have reported some non-invasive assessments of EIMD [12]. According to the obvious decrease in muscle strength, Markus et al. utilized tensiomyography for EIMD assessment [2]. However, the muscle strength decrease occurs approximately 24 h after exercise and is too late for diagnosis. Magnetic resonance imaging was also used to assess EIMD, but obvious changes in macroscopic muscle morphology also appear 24 h after exercise [13]. Compared with the two methods, electromyographic signals are capable of instantly changing after EIMD in terms of muscle excitation and the neuromuscular signal conduction rate [14], but the relationship between electromyographic signals and EIMD is unclear. Furthermore, all of these methods require expensive equipment, limiting the applications in public exercise.
Aside from blood, urine may serve as a tool for EIMD prediction [6,12]. Thus far, some studies have reported changes in urinary metabolites after exercise [15]. For example, Sun et al. compared urinary metabolites before and after an 800 m sprint among 19 athletes, revealing a significant upregulation of 11 metabolites and a significant downregulation of 5 metabolites immediately after exercise [16]. Similarly, other studies have investigated the changes occurring in urinary metabolites after common exercise, e.g., 80 m sprints [17], soccer matches [18], cycling [19], submaximal endurance cycling [20], marathons [21], and resistance training [22]. However, these studies did not analyze EIMD occurrence after exercise, failing to explore the relationship between urinary metabolite changes and EIMD occurrence. Thus far, only a recent study reported changes in urine metabolites following EIMD occurrence [23]. This study identified significant increases in alanine, ethanol, lactate, and asparagine after EIMD onset [23], showing prospects as urinary biomarkers of EIMD. However, these metabolites did not exhibit significant changes immediately after exercise, and only significantly changed 24 h after exercise, indicating the incapability of EIMD prediction. Therefore, the changes in urinary metabolites immediately after exercise should be further revealed, and more efforts are needed to illuminate the potential of urinary metabolites in EIMD prediction.
In this study, urine metabolite variation after high-intensity rowing exercise was revealed, and potential urinary biomarkers for EIMD prediction were identified. First, young participants without regular exercise habits were recruited to perform high-intensity rowing exercise. EIMD occurrence was determined by using blood biochemical analyses. Then, the changes in urinary metabolites were revealed. The relationships between urinary metabolites and blood biochemical indicators were analyzed. Both differential metabolites and enriched metabolic pathways were elucidated. Finally, a discriminative model was established for EIMD prediction, and potential urinary biomarkers for EIMD prediction were identified. The performance of EIMD prediction was compared between single and multiple metabolites.

2. Results and Discussion

2.1. Biochemical Index and EIMD Analyses

In this study, 18 young male participants without regular exercise habits were asked to perform high-intensity rowing exercise. Figure 1 illustrates the changes in biochemical indexes of EIMD after the exercise. The CK level was 91.4 ± 17.2 U/L pre-exercise, and significantly increased to 116.9 ± 20.6 U/L immediately after the exercise (Figure 1a). CK elevation is due to the disruption of muscle cell integrity and the release of intracellular contents [3], suggesting EIMD occurrence after the exercise. An immediate increase in the CK level after high-intensity exercise and muscle injury has been widely reported in a series of previous studies [24,25,26]. The EIMD occurrence after the exercise is due to three reasons. First, none of the participants had ever performed rowing exercise, i.e., rowing exercise is an unfamiliar training for all of them. Secondly, high-intensity rowing exercise is challenging for participants because none of the participants had regular exercise habits, and the rowing exercise was set at a high resistance level of 30. Thirdly, rowing exercise recruits more than 80% of the muscle groups, mostly through eccentric contractions.
Three other phenomena also indicated that EIMD occurred after high-intensity exercise. First, significant LDH elevation is a typical phenotype of EIMD occurrence [3]. As shown in Figure 1b, LDH significantly increased from 148.6 ± 17.6 to 163.1 ± 18.9 U/L after the exercise. Secondly, HBDH significantly increased from 122.6 ± 15.0 to 134.2 ± 17.4 U/L (Figure 1c). LDH is considered the biomarker of overtraining, and overtraining easily induces EIMD [27]. Most importantly, all participants reported obvious muscle soreness at 24 h after exercise, i.e., DOMS appeared (Figure 1d). Therefore, EIMD occurrence after high-intensity rowing exercise was confirmed.

2.2. Metabolite Change Characteristics After High-Intensity Rowing Training

Urinary metabolites were analyzed using quasi-targeted metabolomics. A total of 742 metabolites were identified among 36 urine samples, including 18 samples collected before exercise and 18 samples collected immediately after the exercise. Among these metabolites, 350 metabolites were annotated by using KEGG and were used for the following analyses. As shown in the PCA, three principal components accounted for more than 85% variance in the urine metabolites. Two groups of urine samples were located at different regions, indicating obvious changes in the urine metabolites after the exercise (Figure 2a,b). Additionally, the changes in the urine metabolites followed a similar trend among all participants. As shown in Figure 2c, samples in the Pre-Ex group basically clustered into one group, while samples in the Post-Ex group basically clustered into another group. Interestingly, some urine metabolites changed with similar trends to CK and LDH. For example, lactic acid has a strong positive correlation with CK and LDH (Figure 3a,b). Both CK and LDH originate from cell disruption and intracellular enzyme release [28]. Therefore, the metabolites strongly correlated with CK, and the LDH variations may also originate from muscle cell rupture, Ca-activated protease products, or reactive oxygen species (ROS)-damaged cell membrane components. Further research is required to elucidate the underlying mechanism.
A total of 49 urine metabolites significantly changed after the exercise, including 23 upregulated and 26 downregulated metabolites (Figure 4a,b). Among the differential metabolites, some metabolites have been reported. For example, a significant increase in hypoxanthine was observed after the exercise in this study, and a similar phenomenon was observed after bicycle exercise [29] and marathon sports [30]. An increase in lactate is also a common phenomenon [23]. However, a few metabolites exhibited different trends between previous studies and this study. For example, inosine increased in this study but decreased by 34.79% after marathon sports [30], which may be due to different exercise prescriptions. In fact, most differential metabolites, especially those with a high fold change, have not been reported. Therefore, this study expanded the understanding of urine metabolite variation after high-intensity exercise.
The differential metabolites indicated the changes in metabolic pathways (Figure 4c,d). The tricarboxylic acid (TCA) cycle and pyruvate cycle, both of which are the most common energy metabolism pathways [31,32], were significantly enriched after the exercise and accounted for a higher energy supply during exercise. Upregulated glyoxylate and dicarboxylate metabolism, glycerolipid metabolism, and inositol phosphate metabolism are capable of generating the intermediate metabolites of the TCA cycle, supporting high-energy metabolism [33,34]. Some amino acid metabolisms, e.g., alanine, aspartate, glutamate, and histidine metabolisms, were also upregulated, which benefits in improving exercise performance [35,36]. Some metabolism pathways related to EIMD were also enriched. For example, alpha-linolenic acid (ALA) metabolism was downregulated, which was due to ALA simulating the generation of ROS [37]. Some antioxidant metabolisms, e.g., taurine, hypotaurine, ascorbate, and aldarate, were downregulated, which may be due to antioxidant consumption during exercise [38].

2.3. Potential Urinary Biomarker for EIMD Prediction

The discriminant analysis of 36 urine samples was performed using OPLS-DA. The 36 urine samples were clearly separated, which was in accord with the experiment groups (Figure 5a). Figure 5b lists the top 15 metabolites ranked by variable importance in the projection scores (VIP), including 1-Stearoyl-Sn-Glycerol-3-Phosphocholine, N-acetyl-glutamate, Sphinganine, 1D-chiro-Inositol, 1-Palmitoyl-Sn-Glycero-3-Phosphocholine, Uridine, Hypoxanthine, Fumaric acid, 1,4-Naphthoquinone, L-Malate, 4-Hydroxyphenylacetate, L-Adrenaline, Anthranilic acid, CDP, and 6-Hydroxymelatonin. All these metabolites have high Z-scores, ranging from 1.1 to 2.7. Differential metabolites with high VIP values or Z-scores are commonly used as potential biomarkers [39,40]. Thus far, these metabolites have never been reported in research on EIMD. Therefore, this study is the first to propose that these metabolites have great prospects for EIMD prediction.
ROC curves were used to evaluate the prediction performance of these potential biomarkers (Figure 6a–c). According to the ranking of the area under the curve (AUC), the top three potential urinary biomarkers were 1-Stearoyl-Sn-Glycerol-3-Phosphocholine, D-Lactic acid, and 1,4-Naphthoquinone. Notably, all three potential urine metabolites exhibited high sensitivity and specificity for EIMD prediction. Among these metabolites, 1-Stearoyl-Sn-Glycerol-3-Phosphocholine exhibited the highest sensitivity of 88.9% and the highest specificity of 83.3%, with the highest AUC of 0.904. Furthermore, the prediction performance by using a single biomarker is enough because the combination of multiple biomarkers does not result in better EIMD prediction performance. As shown in Figure 6d, the AUC decreased to 0.858 when using five metabolites for EIMD prediction. Additionally, the predictive accuracy was less than 80% when using multiple biomarkers (Figure 6e). Therefore, it was concluded that a single urine biomarker shows great prospects in EIMD prediction, and the best biomarker is 1-Stearoyl-Sn-Glycerol-3-Phosphocholine.
Thus far, athletes mainly use the blood biochemical index or biomedical image to diagnose EIMD [28]. However, blood biochemical analyses are invasive, and biomedical image observation is hysteretic. Thus far, non-invasive methods for EIMD prediction have not been reported, with limited knowledge on EIMD biomarkers being available. In this study, the changes in urinary metabolites after EIMD occurrence have been revealed, and potential biomarkers for EIMD prediction were screened. Moreover, the potential biomarkers are small-molecule metabolites and could be rapidly quantified using molecular imprinting electrochemistry, immune-electrochemistry, or chemiluminescence techniques, which provide a basis for the development of portable and non-invasive methods for EIMD. Future studies will further investigate the practicality of the potential biomarkers in EIMD prediction and develop portable prediction equipment.

3. Materials and Methods

3.1. Subjects

In this study, 18 young male students were recruited as participants, with an age range of 21–24 and an average age of ~23. Table 1 shows the heights, weights, and BMIs of the participants. To mitigate the influence of gender differences, all participants were male. The questionnaire analysis confirmed that none of the participants had a regular exercise routine or had ever engaged in any training programs. Furthermore, none of the participants had cardiovascular diseases, renal disorders, or metabolic diseases by their self-reporting. All participants exhibited normal levels of the blood biochemical index of EIMD without exercise. All the participants provided written informed consent before exercise, and approval was obtained from the ethics committee of Beijing Institute of Technology [BIT-EC-H-2022143].

3.2. Exercise Protocol and Sample Collection

The exercise protocol for all participants was the same, including the rowing exercise followed by continuous squats. The rowing exercise was conducted using a rowing machine (MRH3208A, Mobifitness Co., Shanghai, China). The maximum resistance of the rowing machine was 32, and the resistance was set at 30 in this study. The training goal was to finish a total rowing distance of 3.0 km, which required approximately 600 strokes. The participants’ rowing posture was monitored and corrected in the training, with rapid pulling followed by a slow release. Multiple muscle groups were engaged in eccentric contraction during the slow release, which was expected to induce EIMD. Interval rests were set in the training, with 30 s of low-resistance rowing after 0.2 km of continuous high-resistance rowing. Moreover, the participants’ heart rates were monitored to maintain the predetermined intensity (approximately 85% maximum heart rate). Participants were asked to perform squats after rowing, and the count of consecutive squats was recorded. DOMS was evaluated by using a visual analog scale (VAS) at 24 h after exercise, in which 0 mm represents no pain while 100 mm represents extreme pain.
Blood and urine samples were collected at two time points: at rest (Pre-Ex) and immediately after exercise (Post-Ex). The samples collected were conducted on two adjacent days to avoid potential interference between blood sampling and training. The sampling was performed at approximately 10 AM, and the participants were asked to have the same breakfast at 8 AM. Having the same breakfast and sampling times aimed at avoiding dietary [41] and rhythm interference [24]. During the experiment, all participants were asked to abstain from alcohol, maintain a regular diet, and avoid overeating. Additionally, the participants were prohibited from engaging in any sports activities except for rowing training. Blood sampling was conducted at Beijing Institute of Technology Hospital and used for the blood biochemical index. Midstream urine samples were collected and used for the analysis of urinary metabolites.

3.3. Biochemical Index and Urine Metabolite Analyses

The biochemical indexes for EIMD analysis included CK, lactate dehydrogenase (LDH), and hydroxybutyrate dehydrogenase (HBDH). All biochemical index analyses were performed with the assistance of Beijing Di An Diagnostics Medical Laboratory by using enzyme-coupled reaction methods. Urine metabolites were analyzed using quasi-targeted metabolomics, which is characterized by high-throughput identification and relatively accurate quantification. A brief description of quasi-targeted metabolomics analysis is as follows. First, protein in the urine samples was removed using methanol, and the metabolites were extracted by freeze-drying. Then, the metabolites were analyzed using liquid chromatography–mass spectrometry. A triple quadrupole-linear ion trap mass spectrometer (QTRAP 6500+, AB Sciex Pte. Ltd., Framingham, MA, USA) was used. Finally, metabolites were accurately identified using the Novogene database and were relatively quantified by multiple reaction monitoring.

3.4. Bioinformatics Analysis

Urine metabolite concentrations were corrected to avoid the effects of urinary hydration status [42,43]. The correction was performed by calculating the ratio of the peak area of the metabolite to that of creatinine in the same sample. Bioinformatics analysis was performed after correction using the MetaboAnalyst 6.0 platform (www.metaboanalyst.ca (accessed on 10 February 2025)). Both principal component analysis (PCA) and clustering heatmaps were used to analyze the overall metabolite changes and trends. Pattern hunter was utilized to identify the urine metabolites that strongly changed related to the blood biochemical index. A paired t-test was used to identify significantly changed metabolites, and the Kyoto Encyclopedia of Genes and Genomes (KEGG) module was employed to analyze enriched metabolic pathways after exercise. Orthogonal partial least squares discriminant analysis (OPLS-DA) was applied to identify the metabolites that were capable of discriminating EIMD. The receiver operating characteristic curve (ROC) was used to screen EIMD urine biomarkers and analyze EIMD prediction performance.

4. Conclusions

High-intensity rowing exercise was seen to induce EIMD occurrence in participants who did not have regular exercise habits. The urinary metabolites obviously changed post-exercise. Most differential metabolites were newly reported and were related to energy production, exercise performance, and EIMD development. Potential urinary biomarkers for EIMD prediction were screened with high sensitivity and specificity, and a single biomarker exhibits better prediction performance than the combination of multiple metabolites. This study proposes a potential biomarker for EIMD prediction. Further validation should be carried out by using different exercise regimens. Despite the high correlation between metabolite changes and EIMD occurrence, the detailed mechanism of the correlation should be revealed. Furthermore, methods for rapid detection of these metabolites should be developed, e.g., molecular imprinting, bioelectrochemistry, or mini mass spectrometry. More efforts are needed to develop point-of-care testing equipment for EIMD prediction.

Author Contributions

Data curation, J.W.; Formal analysis, J.D., Z.Z., B.W., Y.C., Y.L. and S.B.; Funding acquisition, Y.Y.; Investigation, J.W.; Methodology, J.W. and L.W.; Supervision, A.L., C.Z. and Y.Y.; Validation, J.W.; Visualization, J.W.; Writing—original draft, J.W.; Writing—review and editing, J.W., Y.C. and S.B.; Revision, J.D. All authors have read and agreed to the published version of the manuscript.

Funding

This research was funded by the Beijing Institute of Technology Research Fund Program for Young Scholars, grant number 3160012222114, and Fundamental Research Funds for the Central Universities, grant number 2024CX06051.

Institutional Review Board Statement

This study was conducted in accordance with the Declaration of Helsinki and approved by the ethics committee of Beijing Institute of Technology (BIT-EC-H-2022143) in November 2022.

Informed Consent Statement

Informed consent was obtained from all subjects involved in the study.

Data Availability Statement

The metabolome data reported in this paper have been deposited in the OMIX, China National Center for Bioinformation/Beijing Institute of Genomics, Chinese Academy of Sciences (https://ngdc.cncb.ac.cn/omix/release/OMIX010439 (accessed on 7 Jun 2025)). Further inquiries can be directed to the corresponding author.

Acknowledgments

We thank the Biological and Medical Engineering Core Facilities of Beijing Institute of Technology for the use of their experimental equipment.

Conflicts of Interest

The authors declare no conflicts of interest.

Abbreviations

The following abbreviations are used in this manuscript:
EIMDExercise-induced muscle damage
DOMSDelayed onset muscle soreness
CKCreatine kinase
VASVisual analog scale
LDHLactate dehydrogenase
HBDHHydroxybutyrate dehydrogenase
PCAPrincipal component analysis
KEGGKyoto Encyclopedia of Genes and Genomes
OPLS-DAOrthogonal partial least squares discriminant analysis
ROCReceiver operating characteristic
TCATricarboxylic acid
ALAalpha-Linolenic acid
VIPVariable importance in the projection
AUCArea under the curve

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Figure 1. Changes in blood biochemical index of EIMD and pain measurement: (a) CK; (b) LDH; (c) HBDH; and (d) VAS. (* represents p < 0.0332; ** represents p < 0.0021; *** represents p < 0.0002; **** represents p < 0.0001).
Figure 1. Changes in blood biochemical index of EIMD and pain measurement: (a) CK; (b) LDH; (c) HBDH; and (d) VAS. (* represents p < 0.0332; ** represents p < 0.0021; *** represents p < 0.0002; **** represents p < 0.0001).
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Figure 2. (a) The cumulative variance explained by the first N principal components (green line) and proportion of variance explained by each individual principal component (blue line); (b) Changes in urinary metabolites after exercise using PCA analysis; (c) heatmap and clustering analysis.
Figure 2. (a) The cumulative variance explained by the first N principal components (green line) and proportion of variance explained by each individual principal component (blue line); (b) Changes in urinary metabolites after exercise using PCA analysis; (c) heatmap and clustering analysis.
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Figure 3. High correlation between urinary metabolites and blood biochemical index: (a) CK; (b) LDH. (The pink bars represent compounds with a positive correlation with CK or LDH, while the blue bars represent compounds with a negative correlation with CK or LDH).
Figure 3. High correlation between urinary metabolites and blood biochemical index: (a) CK; (b) LDH. (The pink bars represent compounds with a positive correlation with CK or LDH, while the blue bars represent compounds with a negative correlation with CK or LDH).
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Figure 4. (a) Z-scores, (b) volcano plot, (c) enriched upregulated pathway, and (d) enriched downregulated pathway of differential metabolites.
Figure 4. (a) Z-scores, (b) volcano plot, (c) enriched upregulated pathway, and (d) enriched downregulated pathway of differential metabolites.
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Figure 5. (a) Discriminant analysis with an OPLS-DA model; (b) the metabolites with high VIP values.
Figure 5. (a) Discriminant analysis with an OPLS-DA model; (b) the metabolites with high VIP values.
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Figure 6. EIMD prediction with potential urinary biomarkers: (ac) prediction performance of single urinary metabolite; (d) AUC of multiple metabolites; (e) predictive accuracy with an increase in metabolite number. (The red line represents a critical reference value for potential urinary biomarkers; The numerous thin gray lines represent individual predictive models trained on different subsets of features, and each line tracks how one specific model’s accuracy changes as the number of features increases from 5 to 100).
Figure 6. EIMD prediction with potential urinary biomarkers: (ac) prediction performance of single urinary metabolite; (d) AUC of multiple metabolites; (e) predictive accuracy with an increase in metabolite number. (The red line represents a critical reference value for potential urinary biomarkers; The numerous thin gray lines represent individual predictive models trained on different subsets of features, and each line tracks how one specific model’s accuracy changes as the number of features increases from 5 to 100).
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Table 1. Basic characteristics of the subjects.
Table 1. Basic characteristics of the subjects.
Physical IndicatorsRangeAverage Value
Height/cm168–186177.9
Weight/kg66–8672.1
BMI20.3–27.122.8
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MDPI and ACS Style

Wu, J.; Ding, J.; Zhao, Z.; Wang, B.; Cheng, Y.; Li, Y.; Wang, L.; Bo, S.; Luo, A.; Zhang, C.; et al. Urinary Metabolites Variation After High-Intensity Rowing Training and Potential Biomarker Screening for Exercise-Induced Muscle Damage. Int. J. Mol. Sci. 2025, 26, 7897. https://doi.org/10.3390/ijms26167897

AMA Style

Wu J, Ding J, Zhao Z, Wang B, Cheng Y, Li Y, Wang L, Bo S, Luo A, Zhang C, et al. Urinary Metabolites Variation After High-Intensity Rowing Training and Potential Biomarker Screening for Exercise-Induced Muscle Damage. International Journal of Molecular Sciences. 2025; 26(16):7897. https://doi.org/10.3390/ijms26167897

Chicago/Turabian Style

Wu, Jie, Junjie Ding, Ziyue Zhao, Baoguo Wang, Yang Cheng, Yuxian Li, Liming Wang, Shumin Bo, Aiqin Luo, Changyong Zhang, and et al. 2025. "Urinary Metabolites Variation After High-Intensity Rowing Training and Potential Biomarker Screening for Exercise-Induced Muscle Damage" International Journal of Molecular Sciences 26, no. 16: 7897. https://doi.org/10.3390/ijms26167897

APA Style

Wu, J., Ding, J., Zhao, Z., Wang, B., Cheng, Y., Li, Y., Wang, L., Bo, S., Luo, A., Zhang, C., & Yi, Y. (2025). Urinary Metabolites Variation After High-Intensity Rowing Training and Potential Biomarker Screening for Exercise-Induced Muscle Damage. International Journal of Molecular Sciences, 26(16), 7897. https://doi.org/10.3390/ijms26167897

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