In:
PLOS ONE, Public Library of Science (PLoS), Vol. 15, No. 12 ( 2020-12-3), p. e0243276-
Abstract:
High-intensity functional training (HIFT) has become more popular, and the number of practitioners has increased; however, it remains unclear whether perturbations in the immune parameters occur, even after one single bout. Our aim was to examine acute leucocyte, muscle damage, and stress marker responses following a single ‘Cindy’ workout session, and compare the results between novice and experienced participants. Material and methods Twenty-three HIFT practitioners (age 31.0 ± 1.0 years) completed the ‘Cindy’ workout. They were categorized as novice (3–8 months of experience; n = 10) and experienced (≥18 months; n = 13). White blood cell (WBC) count, plasma creatine kinase (CK) activity, blood cortisol level, and lactate concentration were measured. Blood analysis was performed before (pre-ex), immediately after (post-ex), 30 min after (post-30 min), and 24 h after (post-24 h) a single ‘Cindy’ workout session. Results WBC count was higher post-ex (6.8 to 11.8x10 3 /μL) and returned to baseline values within post-30 min (p 〈 0.01). Neutrophil (3.3 to 4.5x10 3 /μL) and lymphocyte levels (2.8 to 5.9x10 3 /μL) were higher post-ex and returned to baseline values after post-24 h, yet lymphocytopoenia (2.2x10 3 /μL) was observed at post-30 min (p 〈 0.01). CK increased post-ex (174.9 to 226.7 U.L -1 ) and remained elevated post-24 h. Cortisol (14.7 to 17.0 μg/dL) and lactate (1.9 to 13.5 mmol.l -1 ) responses increased post-ex, but only the lactate level was reduced at post-30 min (p 〈 0.01). The experienced participants had higher WBC, lymphocyte, and cortisol concentrations post-ex than the novice ones (p 〈 0.01). Conclusions A single HIFT session elicited significant acute perturbations in WBC count, stress markers, and muscle tissue, which is like other similar regimens. Importantly, the experienced participants showed greater lymphocyte and cortisol responses than the novice ones.
Type of Medium:
Online Resource
ISSN:
1932-6203
DOI:
10.1371/journal.pone.0243276
DOI:
10.1371/journal.pone.0243276.g001
DOI:
10.1371/journal.pone.0243276.g002
DOI:
10.1371/journal.pone.0243276.g003
DOI:
10.1371/journal.pone.0243276.g004
DOI:
10.1371/journal.pone.0243276.t001
DOI:
10.1371/journal.pone.0243276.t002
DOI:
10.1371/journal.pone.0243276.t003
DOI:
10.1371/journal.pone.0243276.t004
DOI:
10.1371/journal.pone.0243276.s001
DOI:
10.1371/journal.pone.0243276.s002
DOI:
10.1371/journal.pone.0243276.s003
DOI:
10.1371/journal.pone.0243276.r001
DOI:
10.1371/journal.pone.0243276.r002
DOI:
10.1371/journal.pone.0243276.r003
DOI:
10.1371/journal.pone.0243276.r004
DOI:
10.1371/journal.pone.0243276.r005
DOI:
10.1371/journal.pone.0243276.r006
Language:
English
Publisher:
Public Library of Science (PLoS)
Publication Date:
2020
detail.hit.zdb_id:
2267670-3
Permalink