Download - Reduced Team Sport Performance up to Four Days Following Long-Haul Transmeridian Air Travel
Peter Fowler Ph.D.
Research Scientist (Performance Recovery)
Athlete Health and Performance Research Centre
Duffield, R., Crowcroft, S., Mendham, A., Halson, S., Vaile, J., Knez, W.
INTRODUCTION 1. Long-haul travel is a frequent necessity for football players
INTRODUCTION 2. Detrimental effects of long-haul travel on performance
Disruption of
Circadian Rhythms
(Jet-Lag)
Demands of Travel
(Travel Fatigue)
Sleep Disruption
Beaumont et al. 2004
Takahashi et al. 2002
↑ fatigue + ↓ mood
Waterhouse et al. 2002
Skein et al. 2011
Illness
Schwellnus et al. 2002
↓ Physical performance
Chapman et al. 2012
Reilly et al. 2001
INTRODUCTION 2. Detrimental effects of long-haul travel on performance
Reilly et al. 2001
INTRODUCTION
3. Recovery timeline of team-sport performance?
INTRODUCTION 3. Recovery timeline of team-sport performance?
INTRODUCTION 3. Recovery timeline of team-sport performance?
2093 (2076-2110) m
AIM Effects of eastward long-haul transmeridian air travel on the
recovery timeline of physical performance for team sports.
METHODS Participants
19, healthy, physically active males
Mean ± SD
Age (y) 21.9 ± 3.6
Height (cm) 178.2 ± 6.5
Body mass (kg) 77.12 ± 7.68
YYIR1 (Level) 17.5 ± 1.4
MEQ 52 ± 8 (intermediate)
7 d
ay w
as
ho
ut
4 d
ay w
as
ho
ut
METHODS Experimental Design
21 h
WEST
8 time-zones
21 h
EAST
8 time-zones
Baseline
METHODS Experimental Procedures
1. CMJ
2. 20 m sprint
3. Agility
4. YYIR1
Statistical Analysis
• Data are presented as mean (95% CI).
• One-way ANOVA - absolute change from baseline.
• Significant effect (P<0.05) - Tukey’s post-hoc analysis performed.
• Standardised effect size (Cohen d) analysis - interpret magnitude
of differences.
RESULTS
09:00
17:00
RESULTS
09:00
17:00
RESULTS
17:00
09:00
RESULTS
17:00
17:00
RESULTS
17:00
DISCUSSION
Physical performance specific to football reduced up
to 4 days following 21 h eastward air travel across
8 time-zones.
1. Why?
2. So what?
↓-2.5 (-3.6, -1.4)*
↑7.8 (7.0 - 8.6)*
DISCUSSION
Physical Feeling
0.8 (-0.2 - 2.4)
sRPE
5.9 (4.7 - 7.1)
Disruption of
Circadian Rhythms
(Jet-Lag)
Demands of Travel
(Travel Fatigue)
Sleep Disruption
Beaumont et al. 2004
Takahashi et al. 2002
↑ fatigue + ↓ mood
Waterhouse et al. 2002
Skein et al. 2011
Illness
Schwellnus et al. 2002
↓ Physical performance
Chapman et al. 2012
Reilly et al. 2001
DISCUSSION
DISCUSSION
Kline et al. 2007
Disruption of
Circadian Rhythms
(Jet-Lag)
Demands of Travel
(Travel Fatigue)
Sleep Disruption
Beaumont et al. 2004
Takahashi et al. 2002
↑ fatigue + ↓ mood
Waterhouse et al. 2002
Skein et al. 2011
Illness
Schwellnus et al. 2002
↓ Physical performance
Chapman et al. 2012
Reilly et al. 2001
DISCUSSION
DISCUSSION
DISCUSSION
CONCLUSION
• Physical performance specific to football reduced up
to 4 days following 21 h eastward air travel across
8 time-zones.
• Preliminary results suggest could be due to
reduced tolerance/motivation during exercise.
• Which, in turn may be a result of circadian rhythm
and/or sleep disruption.
FUTURE RESEARCH
• Elite team sport athletes as participants.
• Sport/training specific performance measures.
• Longitudinal post-travel recovery timeline.
Travel Performance Sub-max HR Actigraphy
Jet-lag & Perceptual Urine Light Exposure
7 d
ay w
ash
ou
t
4 d
ay w
ash
ou
t
Blood Saliva Sleep Hygiene
Cognitive
Function
