TY - JOUR
T1 - Effect of Competitive Status and Experience on Heart Rate Variability Profiles in Collegiate Sprint-Swimmers
AU - Flatt, Andrew A.
AU - Hornikel, Bjoern
AU - Nakamura, Fabio Y.
AU - Esco, Michael R.
N1 - Publisher Copyright:
© 2022 NSCA National Strength and Conditioning Association. All rights reserved.
PY - 2022/10/1
Y1 - 2022/10/1
N2 - Flatt, AA, Hornikel, B, Nakamura, FY, and Esco, MR. Effect of competitive status and experience on heart rate variability profiles in collegiate sprint-swimmers. J Strength Cond Res 36(10): 2898-2904, 2022 - Interindividual differences in training history may be a determinant of heart rate variability (HRV) profiles in collegiate sprint-swimmers and may account for differences observed between elite and subelite athletes. We therefore compared HRV profiles among national-level and conference-level sprint-swimmers while accounting for individual swim-training history. Twenty-eight short-distance swimmers (18 men and 10 women) recorded postwaking HRV throughout a 4-week standardized training period. The 4-week mean (M) and coefficient of variation (CV, a marker of daily fluctuation) were calculated for resting heart rate (RHR) and the natural logarithm of the root mean square of successive differences (LnRMSSD). Swimmers were categorized as national-level (n = 12) or conference-level (n = 16) competitors. Years of competitive experience was documented for each individual to index training history. p < 0.05 was considered statistically significant. No sex-related differences were observed for any variables (p > 0.05). LnRMSSDM(effect size [ES] = 0.95), LnRMSSDCV(ES = -1.18), RHRCV(ES = -1.05), and competitive experience (ES = 1.23) differed between status groups (p < 0.05). Accounting for multicollinearity between competitive experience and LnRMSSD variables (p < 0.05), competitive experience remained associated with LnRMSSDM(r = 0.44, p = 0.02). With competitive experience included as a covariate, differences in LnRMSSDMbetween status groups disappeared (p > 0.05, ES = 0.31). National-level swimmers exhibit higher and more stable LnRMSSD than that of their conference-level teammates throughout standardized training. Differences in trend characteristics were attributed to training age. This information may assist practitioners with interpreting interindividual differences in HRV profiles throughout training periods among a mixed roster of athletes.
AB - Flatt, AA, Hornikel, B, Nakamura, FY, and Esco, MR. Effect of competitive status and experience on heart rate variability profiles in collegiate sprint-swimmers. J Strength Cond Res 36(10): 2898-2904, 2022 - Interindividual differences in training history may be a determinant of heart rate variability (HRV) profiles in collegiate sprint-swimmers and may account for differences observed between elite and subelite athletes. We therefore compared HRV profiles among national-level and conference-level sprint-swimmers while accounting for individual swim-training history. Twenty-eight short-distance swimmers (18 men and 10 women) recorded postwaking HRV throughout a 4-week standardized training period. The 4-week mean (M) and coefficient of variation (CV, a marker of daily fluctuation) were calculated for resting heart rate (RHR) and the natural logarithm of the root mean square of successive differences (LnRMSSD). Swimmers were categorized as national-level (n = 12) or conference-level (n = 16) competitors. Years of competitive experience was documented for each individual to index training history. p < 0.05 was considered statistically significant. No sex-related differences were observed for any variables (p > 0.05). LnRMSSDM(effect size [ES] = 0.95), LnRMSSDCV(ES = -1.18), RHRCV(ES = -1.05), and competitive experience (ES = 1.23) differed between status groups (p < 0.05). Accounting for multicollinearity between competitive experience and LnRMSSD variables (p < 0.05), competitive experience remained associated with LnRMSSDM(r = 0.44, p = 0.02). With competitive experience included as a covariate, differences in LnRMSSDMbetween status groups disappeared (p > 0.05, ES = 0.31). National-level swimmers exhibit higher and more stable LnRMSSD than that of their conference-level teammates throughout standardized training. Differences in trend characteristics were attributed to training age. This information may assist practitioners with interpreting interindividual differences in HRV profiles throughout training periods among a mixed roster of athletes.
KW - athlete monitoring
KW - autonomic
KW - cardiovascular
KW - parasympathetic
KW - sport science
UR - http://www.scopus.com/inward/record.url?scp=85138276706&partnerID=8YFLogxK
U2 - 10.1519/JSC.0000000000003992
DO - 10.1519/JSC.0000000000003992
M3 - Article
C2 - 36135035
AN - SCOPUS:85138276706
SN - 1064-8011
VL - 36
SP - 2898
EP - 2904
JO - Journal of Strength and Conditioning Research
JF - Journal of Strength and Conditioning Research
IS - 10
ER -