The effects of swimming fatigue on shoulder strength, range of motion, joint control, and performance in swimmers
(Die Auswirkungen von Schwimmbelastung auf Schulterkraft, Bewegungsumfang, Gelenkkontrolle und Leistung von Schwimmern)
• Reductions observed in swim stroke length with fatigue.
• Reductions observed in external rotation range of motion of both arms with fatigue.
• Reduction observed in joint position sense of dominant arm.
• No changes observed in isometric strength with fatigue.
Purpose: To investigate the effects of training induced fatigue on shoulder strength, ROM, joint position sense, and stroke length in elite competitive swimmers.
Methods: Seventeen national level swimmers performed maximum isometric strength (internal and external rotation), ROM, and joint position sense tests before and after a fatiguing 8 100 m training set. Stroke length, heart rate, blood lactate and blood glucose levels were recorded throughout.
Results: Peak blood lactate, blood glucose levels, and heart rate increased significantly (P < 0.001) posttraining confirming fatigue. Reductions were observed in stroke length of both arms (P < 0.001), external rotation range of motion (P < 0.001, 5.29 , Right shoulder; P ¼ 0.04, 3.18 , Left shoulder) and joint position sense in their dominant (breathing side) arm (P ¼ 0.03). Conclusions: This investigation revealed a reduction in stroke length across both arms and also an arm bias in swimming whereby a greater reduction in both external rotation range and joint position sense was observed in the dominant arm when fatigued. This has highlighted a relationship between fatigue
and potential mechanism of shoulder pathology in swimmers.
© Copyright 2017 Physical Therapy in Sport. Elsevier. Alle Rechte vorbehalten.
Schlagworte: | Biomechanik Training Test Schulter Schwimmen Kraft Beweglichkeit Gelenk Arm |
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Notationen: | Biowissenschaften und Sportmedizin Ausdauersportarten |
DOI: | 10.1016/j.ptsp.2016.08.011 |
Veröffentlicht in: | Physical Therapy in Sport |
Veröffentlicht: |
2017
|
Jahrgang: | 23 |
Heft: | January |
Seiten: | 118-122 |
Dokumentenarten: | Artikel |
Sprache: | Englisch |
Level: | hoch |