Morning Heart Rate Variability as an Indication of Fatigue Status in Badminton Players during a Training Camp
This study aimed to clarify whether changes in the fatigue status of elite athletes during a precompetition period could be evaluated using morning heart rate variability (HRV) indices. Eight Japanese National Badminton Team players (age, 23.0 ± 2.8 years) participated in this study. HRV and subject...
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MDPI AG
2020-11-01
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| Series: | Sports |
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| Online Access: | https://www.mdpi.com/2075-4663/8/11/147 |
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| author | Taro Iizuka Nao Ohiwa Tomoaki Atomi Miho Shimizu Yoriko Atomi |
| author_facet | Taro Iizuka Nao Ohiwa Tomoaki Atomi Miho Shimizu Yoriko Atomi |
| author_sort | Taro Iizuka |
| collection | DOAJ |
| description | This study aimed to clarify whether changes in the fatigue status of elite athletes during a precompetition period could be evaluated using morning heart rate variability (HRV) indices. Eight Japanese National Badminton Team players (age, 23.0 ± 2.8 years) participated in this study. HRV and subjective fatigue were measured during the first (days 1–4: Phase 1) and the second half (days 5–8: Phase 2) of an 8-day national team training camp. The global and parasympathetic HRV indices were as follows: standard deviation of all R-R intervals (SDNN) (Phase 1, 87.5 ms; Phase 2, 104.3 ms; <i>p</i> < 0.05), root mean square of the successive R-R interval differences (RMSSD) (Phase 1, 66.6 ms; Phase 2, 103.6 ms; <i>p</i> < 0.05), and high-frequency component power (HF) (Phase 1, 1412.0 ms<sup>2</sup>; Phase 2, 3318.5 ms<sup>2</sup>; <i>p</i> < 0.05). All the aforementioned indices increased significantly from Phase 1 to Phase 2. Significant correlations were observed between the change in subjective fatigue and changes in SDNN, RMSSD, and HF (ρ = −0.80, <i>p</i> = 0.017; ρ = −0.77, <i>p</i> = 0.027; and ρ = −0.80, <i>p</i> = 0.017, respectively). Measuring morning HRV indices may be effective for objectively evaluating changes in the fatigue status of elite athletes during a precompetition period. |
| first_indexed | 2024-03-10T14:58:14Z |
| format | Article |
| id | doaj.art-c519ab203b2a427f9dddff6388c8ace4 |
| institution | Directory Open Access Journal |
| issn | 2075-4663 |
| language | English |
| last_indexed | 2024-03-10T14:58:14Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sports |
| spelling | doaj.art-c519ab203b2a427f9dddff6388c8ace42023-11-20T20:24:57ZengMDPI AGSports2075-46632020-11-0181114710.3390/sports8110147Morning Heart Rate Variability as an Indication of Fatigue Status in Badminton Players during a Training CampTaro Iizuka0Nao Ohiwa1Tomoaki Atomi2Miho Shimizu3Yoriko Atomi4Material Health Science Laboratory, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Tokyo 184-8588, JapanDepartment of Sports Research, Japan Institute of Sports Sciences, Tokyo 115-0056, JapanDepartment of Physical Therapy, Faculty of Health Sciences, Kyorin University, Tokyo 181-8612, JapanMaterial Health Science Laboratory, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Tokyo 184-8588, JapanMaterial Health Science Laboratory, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Tokyo 184-8588, JapanThis study aimed to clarify whether changes in the fatigue status of elite athletes during a precompetition period could be evaluated using morning heart rate variability (HRV) indices. Eight Japanese National Badminton Team players (age, 23.0 ± 2.8 years) participated in this study. HRV and subjective fatigue were measured during the first (days 1–4: Phase 1) and the second half (days 5–8: Phase 2) of an 8-day national team training camp. The global and parasympathetic HRV indices were as follows: standard deviation of all R-R intervals (SDNN) (Phase 1, 87.5 ms; Phase 2, 104.3 ms; <i>p</i> < 0.05), root mean square of the successive R-R interval differences (RMSSD) (Phase 1, 66.6 ms; Phase 2, 103.6 ms; <i>p</i> < 0.05), and high-frequency component power (HF) (Phase 1, 1412.0 ms<sup>2</sup>; Phase 2, 3318.5 ms<sup>2</sup>; <i>p</i> < 0.05). All the aforementioned indices increased significantly from Phase 1 to Phase 2. Significant correlations were observed between the change in subjective fatigue and changes in SDNN, RMSSD, and HF (ρ = −0.80, <i>p</i> = 0.017; ρ = −0.77, <i>p</i> = 0.027; and ρ = −0.80, <i>p</i> = 0.017, respectively). Measuring morning HRV indices may be effective for objectively evaluating changes in the fatigue status of elite athletes during a precompetition period.https://www.mdpi.com/2075-4663/8/11/147heart rate variabilitybadmintonfatiguephysical conditionautonomic nervous activity |
| spellingShingle | Taro Iizuka Nao Ohiwa Tomoaki Atomi Miho Shimizu Yoriko Atomi Morning Heart Rate Variability as an Indication of Fatigue Status in Badminton Players during a Training Camp Sports heart rate variability badminton fatigue physical condition autonomic nervous activity |
| title | Morning Heart Rate Variability as an Indication of Fatigue Status in Badminton Players during a Training Camp |
| title_full | Morning Heart Rate Variability as an Indication of Fatigue Status in Badminton Players during a Training Camp |
| title_fullStr | Morning Heart Rate Variability as an Indication of Fatigue Status in Badminton Players during a Training Camp |
| title_full_unstemmed | Morning Heart Rate Variability as an Indication of Fatigue Status in Badminton Players during a Training Camp |
| title_short | Morning Heart Rate Variability as an Indication of Fatigue Status in Badminton Players during a Training Camp |
| title_sort | morning heart rate variability as an indication of fatigue status in badminton players during a training camp |
| topic | heart rate variability badminton fatigue physical condition autonomic nervous activity |
| url | https://www.mdpi.com/2075-4663/8/11/147 |
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