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Table 2 Physiological and biomechanical changes during the swim-to-cycle transition

From: Interlink Between Physiological and Biomechanical Changes in the Swim-to-Cycle Transition in Triathlon Events: A Narrative Review

Type

Physiological changes

Biomechanical changes

VO2/VE/RF during cycling

La/HR after swim/during cycling

Hct/Hb/WBC after swim

RPE / T° after swim

PV after swim

GE during cycling

PW during cycling

SSF/RPM

SSL

PT

FD [Laursen et al.] [18]

 + 5% VO2

 + 6.7% VE

 + 2% HR

    

− 4.7%

   

HD [Rothschild et al.] [19]

 + 4% VO2

 + 4% HR

    

− 3.8% PW mean

   

HD [Rothschild et al.] [41]

 

HR No Change

        

OD [Long et al.] [27]

 

 + 21.2%LDH

 + 25% Cre

 + 39% WBC

 + 3.8% RBC

 

− 9.6%

 

− 6%

   

OD [Delextrat et al.] [43]

 + 5% VO2

 + 15.7% VE

 + 19.9% RF

 + 9.3% HR

 + 32.2% La

   

− 13%

    

OD [González-Haro et al.] [44]

No change

High to low

HR no change

    

No change

   

SD [Kreider et al., 1988] [33]

 + 5.6% VO2

 + 5.3% VE

  

 + 0.8% T°

 

− 17%

    

SD [Mc Naughton et al.] [28]

    

− 3.8% to 4.3%

 

No change

   

SD [Delextrat et al.] [45]

 + 4.5% VO2

 + 14.4% VE

 + 15.6% RF

 + 11% HR

 + 47% La

   

− 12.1%

 

 + 14% SSR

  

SD [Delextrat et al., 2003] [46]

 + 4.4% VO2

 + 6.6% VE

 + 9.4% RF

 + 7% HR

 + 29.3% La

 

High RPE

 

− 4.8%

 

 + 5.6% RPM

  

SD [Delextrat et al.] [55]

 + 5% VO2

 + 19% VE

 + 24.8% RF

 + 7% HR

 + 42.9% La

   

− 15.5%

    

SD [Delextrat et al.] [47]

 + 5% VO2

 + 6.4% HR

 + 16.7% La

 

High RPE

 

− 5.4%

 

 + 5.8% RPM

 

− 2.9% Pk

− 3.9% Mn

SD [Peeling et al.] [48]

No change

 + 75% La

 

High RPE

 

− 4.2%

− 9.6%

 + 20.5% SSF

  

SD [Peeling et al.] [30]

 

 + 1.8% HR

 + 1.2% La

 

 + 2.4%T°

  

No change

   

SD [Wu et al.] [54]

   

High RPE

  

− 6.5%

   

SD [Barragán et al.] [49]

 

 + 59% La

    

No change

No change RPM

  

MTR [Bentley et al.] [50]

No change

 + 3.5% HR

 ~  + 87% La

    

− 11% PW mean

 + 18.4% SSF

  
  1. C° Celsius; Cr: Creatinine; FD Full distance; GE Gross efficiency; Hb Hemoglobin, Hct Hematocrit; HD Half distance; HR Heart rate; La Lactate; LDH Lactate dehydrogenase; MTR Mixed-team relay distance; OD Olympic distance; PT Pedal torque; PV Plasma volume; PW Cycling power; RBC Red blood cell; RF Respiratory frequency; RPE Rate of perceived exertion; RPM Revolution per minute; SD Sprint distance; SSF Swim stroke frequency; SSL Swim stroke length; VE Ventilatory equivalent; VO2 Oxygen uptake kinetics; WBC White blood cell