Inspiratory Muscle Training Plus Cold Water Immersion After Muscle-Damaging Exercise
The Combined Effect of Cold Water Immersion and Inspiratory Muscle Training on the Recovery From Exercise-Induced Muscle Damage and Physical Performance: A Randomized, Placebo-Controlled Crossover Study
The purpose of this study is to examine, using a placebo-controlled design, the additional effect of inspiratory muscle training (IMT) added to cold water immersion (CWI) on recovery and muscle performance following exercise-induced muscle damage (EIMD), and to determine whether this effect varies depending on the timing of the intervention. The study will include 12 healthy male athletes aged 18-22 who have been licensed for at least 4 years and are actively involved in sports. Each participant will undergo four different interventions in a randomized order determined by the Williams balanced sequence following muscle damage induced by eccentric exercise on an isokinetic dynamometer: CWI + placebo IMT immediately after exercise, IMT + CWI immediately after exercise, IMT + CWI 24 hours after exercise, and a control condition with no recovery intervention. The sessions will be conducted in weekly cycles with 7-day intervals, alternating between the dominant and non-dominant legs; thus, there will be a 14-day interval between two loading sessions for the same leg. All measurements will be taken during the week. Muscle strength will be assessed using an isokinetic dynamometer; markers of muscle damage (CK, myoglobin, LDH) will be measured via blood samples; and muscle pain will be evaluated using the Visual Analog Scale (VAS) before each exercise session and 48 hours after exercise.
調査の概要
状態
状態
条件
条件
介入・治療
介入・治療
研究の種類
研究の種類
入学 (推定)
入学
段階
段階
- 適用できない
連絡先と場所
研究場所
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-
Şehitkamil
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Gaziantep、Şehitkamil、トルコ(Türkiye)
- Gaziantep University, Faculty of Sports Sciences, Sports Performance and Testing Laboratory
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参加基準
適格基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- Be a male between the ages of 18 and 22
- Hold a sports license valid for at least 4 years
- Be actively involved in sports
- Not smoke or use similar substances
Exclusion Criteria:
- Having sustained a sports injury within the past 2 years
- Having engaged in exercise that could cause muscle damage within the past 15 days
- Cold intolerance, cold urticaria, or Raynaud's phenomenon
- Known cardiovascular, respiratory, or musculoskeletal disease
- Use of anti-inflammatory medication or dietary supplements that could affect recovery during the study period
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:他の
- 割り当て:ランダム化
- 介入モデル:クロスオーバー割り当て
- マスキング:独身
アーム数
武器と介入
参加者グループ / アーム参加者グループ / アーム |
介入・治療介入・治療 |
|---|---|
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偽コンパレータ:CWI + placebo IMT
Device: Placebo IMT - 2 × 30 breaths at 15% of MIP using POWERbreathe (1 min between sets), immediately following the short test after EIMD. Other: Immersion in cold water - immediately following the placebo IMT, in 10-12 °C water, up to waist level or with legs fully submerged, for 10-15 minutes. |
Immersion up to the waist in water at 13-15 °C for 13-15 minutes in a portable ice bath; water temperature is monitored with a thermometer and maintained by adding ice. Same device, position and volume as inspiratory muscle training (two sets of 30 breaths, 1 minute rest), but at 15% of maximal inspiratory pressure, a load considered below the training threshold. Followed immediately by cold water immersion. |
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実験的:IMT + CWI (immediately)
Other: Inspiratory muscle training + cold water immersion. Immediately following the short test after EIMD, 2 × 30 breaths at 40% of MIP using POWERbreathe (1 min rest between sets), followed by CWI. |
Immersion up to the waist in water at 13-15 °C for 13-15 minutes in a portable ice bath; water temperature is monitored with a thermometer and maintained by adding ice. Two sets of 30 breaths at 40% of maximal inspiratory pressure with 1 minute rest between sets, using a POWERbreathe device; oxygen saturation is monitored by pulse oximetry. Followed immediately by cold water immersion. |
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実験的:IMT + CWI (at 24 hours)
Other: Inspiratory muscle training + cold water immersion. The same IMT and CWI protocol is administered 24 hours after EIMD; the 48-hour measurement is taken relative to EIMD (24 hours after the intervention). |
Immersion up to the waist in water at 13-15 °C for 13-15 minutes in a portable ice bath; water temperature is monitored with a thermometer and maintained by adding ice. Two sets of 30 breaths at 40% of maximal inspiratory pressure with 1 minute rest between sets, using a POWERbreathe device; oxygen saturation is monitored by pulse oximetry. Followed immediately by cold water immersion. |
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介入なし:Control
No recovery procedure is performed after the EIMD protocol; only measurements are taken. |
この研究は何を測定していますか?
主要な結果の測定
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Peak Power ( 60°/s)
時間枠:The 48-hour period before and after EIMD in each phase
|
Highest torque (Nm) measured during a 5-rep maximum test on an isokinetic dynamometer |
The 48-hour period before and after EIMD in each phase
|
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Peak Power ( 180°/s)
時間枠:The 48-hour period before and after EIMD in each phase
|
Highest torque (Nm) measured during a 10-rep maximum test on an isokinetic dynamometer |
The 48-hour period before and after EIMD in each phase
|
|
Average Power ( 180°/s- 60°/s)
時間枠:The 48-hour period before and after EIMD in each phase
|
Average of peak torque values during test repetitions (Nm) |
The 48-hour period before and after EIMD in each phase
|
|
Serum creatine kinase (CK)
時間枠:The 48-hour period before and after EIMD in each phase
|
CK level in venous blood (U/L) |
The 48-hour period before and after EIMD in each phase
|
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Myoglobin (Mb)
時間枠:The 48-hour period before and after EIMD in each phase
|
Myoglobin level in venous blood (ng/mL) |
The 48-hour period before and after EIMD in each phase
|
|
Lactate dehydrogenase (LDH)
時間枠:The 48-hour period before and after EIMD in each phase
|
LDH level in venous blood (U/L) |
The 48-hour period before and after EIMD in each phase
|
二次結果の測定
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
H/Q ratio
時間枠:The 48-hour period before and after EIMD in each phase
|
Hamstring-to-quadriceps peak torque ratio (60°/s and 180°/s) |
The 48-hour period before and after EIMD in each phase
|
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VAS
時間枠:During each period: before EIMD, immediately after EIMD, and 48 hours after EIMD
|
0-10 cm Visual Analog Scale (0 = no pain, 10 = very severe pain) |
During each period: before EIMD, immediately after EIMD, and 48 hours after EIMD
|
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Fatique Index
時間枠:The 48-hour period before and after EIMD in each phase
|
Fatigue index (%) calculated from a test consisting of 10 cycles at 180°/s |
The 48-hour period before and after EIMD in each phase
|
協力者と研究者
研究記録日
主要日程の研究
研究開始 (推定)
研究開始
一次修了 (推定)
一次修了
研究の完了 (推定)
研究の完了
試験登録日
最初に提出
最初に提出
QC基準を満たした最初の提出物
QC基準を満たした最初の提出物
最初の投稿 (実際)
最初の投稿
学習記録の更新
投稿された最後の更新 (実際)
投稿された最後の更新
QC基準を満たした最後の更新が送信されました
QC基準を満たした最後の更新が送信されました
最終確認日
最終確認日
詳しくは
本研究に関する用語
その他の研究ID番号
その他の研究ID番号
- 2026/9504
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
IPD プランの説明
"Individual participant data will not be shared for privacy reasons; aggregate results will be published."
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
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