Measures from the pre- and post-training VO\(_2\)max tests: total body mass, absolute and relative VO\(_2\)max, respiratory exchange rate (RER), VCO\(_2\), maximum run speed, blood lactate, and test duration.
VO2MAXAn object of class data.frame with 234 rows and 27 columns:
character; randomly generated 8-digit identifier used in linkage to phenotypic data. All samples from the same animal have the same PID.
character; unique ID used for each rat at the Iowa PASS.
factor; the age of the rat at the beginning of the training protocol. Levels: "6M" (Adult) and "18M" (Aged).
factor; the sex of the rat with levels "Female" and "Male".
factor; exercise training group. Either "SED" (sedentary) or the number of weeks of training ("1W", "2W", "4W", "8W").
numeric; body mass (g) recorded on the same day as the VO\(_2\)max test (pre-training).
POSIXct, POSIXt; date and time of the VO\(_2\)max test start (pre-training).
numeric; blood lactate (mmol/L) recorded at the start of the test (pre-training).
numeric; maximum relative VO\(_2\)max (mL/kg body mass/min) reached during the test (pre-training).
numeric; maximum absolute VO\(_2\)max (mL/kg/min) reached during the test (pre-training).
numeric; maximum VCO\(_2\) reached during the VO\(_2\)max test (pre-training).
numeric; maximum respiratory exchange rate (RER) reached during the VO\(_2\)max test (pre-training).
numeric; maximum run speed (m/min) reached during the VO\(_2\)max test (pre-training).
POSIXct, POSIXt; date and time of the VO\(_2\)max test end (pre-training).
numeric; blood lactate (mmol/L) recorded at the end of the test (pre-training).
character; comments regarding the pre-training VO\(_2\)max test.
numeric; body mass (g) recorded on the same day as the VO\(_2\)max test (post-training).
POSIXct, POSIXt; date and time of the VO\(_2\)max test start (post-training).
numeric; blood lactate (mmol/L) recorded at the start of the test (post-training).
numeric; maximum relative VO\(_2\)max (mL/kg body mass/min) reached during the test (post-training).
numeric; maximum absolute VO\(_2\)max (mL/kg/min) reached during the test (post-training).
numeric; maximum VCO\(_2\) reached during the VO\(_2\)max test (post-training).
numeric; maximum respiratory exchange rate (RER) reached during the VO\(_2\)max test (post-training).
numeric; maximum run speed (m/min) reached during the VO\(_2\)max test (post-training).
POSIXct, POSIXt; date and time of the VO\(_2\)max test end (post-training).
numeric; blood lactate (mmol/L) recorded at the end of the test (post-training).
character; comments regarding the post-training VO\(_2\)max test.
head(VO2MAX)
#> pid iowa_id age sex group pre_body_mass pre_t_start
#> 1 10043527 06F8T1 6M Female SED 178.3 2018-07-30 10:03:44
#> 2 10043799 06F8T3 6M Female SED 182.8 2018-07-30 14:01:35
#> 3 10043950 06F8T4 6M Female SED 178.2 2018-07-30 15:04:29
#> 4 10044094 06F8T5 6M Female SED 182.0 2018-07-30 16:12:44
#> 5 10044337 06F8T8 6M Female SED 182.4 2018-07-31 10:09:26
#> 6 10044418 06F8T9 6M Female SED 174.5 2018-07-31 12:14:06
#> pre_blactate_begin pre_vo2max_ml_kg_min pre_vo2max_ml_min pre_vco2_max
#> 1 1.9 83.8 14.94154 79.72
#> 2 1.8 71.7 13.10676 75.00
#> 3 2.3 72.5 12.91950 76.50
#> 4 2.2 69.7 12.68540 71.08
#> 5 2.1 69.6 12.69504 76.19
#> 6 1.6 77.6 13.54120 76.09
#> pre_rer_max pre_speed_max pre_t_complete pre_blactate_end
#> 1 1.03 25.2 2018-07-30 10:39:54 8.1
#> 2 1.08 25.2 2018-07-30 14:37:45 11.0
#> 3 1.06 25.2 2018-07-30 15:38:49 9.4
#> 4 1.04 25.2 2018-07-30 16:47:04 4.9
#> 5 1.10 23.4 2018-07-31 10:42:56 12.6
#> 6 1.00 23.4 2018-07-31 12:58:11 11.8
#> pre_comments
#> 1 <NA>
#> 2 <NA>
#> 3 <NA>
#> 4 Sat on shock too long towards the end
#> 5 <NA>
#> 6 Nosebleed, potentially from sitting on the shock too much towards the end
#> post_body_mass post_t_start post_blactate_begin post_vo2max_ml_kg_min
#> 1 199.2 2018-09-25 12:30:00 1.8 73.16
#> 2 203.0 2018-09-29 17:33:00 1.9 63.77
#> 3 202.3 2018-09-29 18:24:00 1.6 64.63
#> 4 190.4 2018-09-25 15:45:00 1.9 61.85
#> 5 204.6 2018-09-25 13:10:00 1.1 73.52
#> 6 190.8 2018-09-26 17:35:00 1.0 63.65
#> post_vo2max_ml_min post_vco2_max post_rer_max post_speed_max
#> 1 14.57347 80.68 1.09 23.4
#> 2 12.94531 69.09 1.11 21.6
#> 3 13.07465 67.41 1.06 21.6
#> 4 11.77624 63.09 1.03 19.8
#> 5 15.04219 74.19 1.01 23.4
#> 6 12.14442 69.17 1.09 21.6
#> post_t_complete post_blactate_end post_comments
#> 1 2018-09-25 13:13:00 12.2 <NA>
#> 2 2018-09-29 18:17:00 10.7 <NA>
#> 3 2018-09-29 19:08:00 11.2 <NA>
#> 4 2018-09-25 16:29:00 7.6 <NA>
#> 5 2018-09-25 13:56:00 9.0 <NA>
#> 6 2018-09-26 18:23:00 10.1 <NA>