Changes in body composition, bone metabolism, strength, and skill-specific performance resulting from 16-weeks of HIFT.
High Intensity Functional Training (HIFT) is a training modality, characterized by multimodal exercises performed at high-intensity. Little is known about the training adaptations that occur as a prolonged training program. The purpose of this study was to examine changes in body composition, bone m...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2018-01-01
|
| Series: | PLoS ONE |
| Online Access: | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0198324&type=printable |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849715573608415232 |
|---|---|
| author | Yuri Feito Wade Hoffstetter Paul Serafini Gerald Mangine |
| author_facet | Yuri Feito Wade Hoffstetter Paul Serafini Gerald Mangine |
| author_sort | Yuri Feito |
| collection | DOAJ |
| description | High Intensity Functional Training (HIFT) is a training modality, characterized by multimodal exercises performed at high-intensity. Little is known about the training adaptations that occur as a prolonged training program. The purpose of this study was to examine changes in body composition, bone metabolism, strength, and skill-specific performance over 16-weeks of HIFT. Twenty-six recreationally active adult males (n = 9; 34.2 ± 9.1 y; 91.5 ± 17.7 kg; 178.5 ± 5.4 cm) and females (n = 17 = 36.4 ± 7.9 y; 91.5 ± 17.7 kg; 162.9 ± 7.0 cm) completed pre and post training assessments of body composition (Dual-Energy X-Ray Absorptiometry) and performance measures. Performance was assessed using three HIFT workouts (WOD 1-3) to assess strength, skill, and metabolic performance. Aside from the body composition measurements, all assessments were carried out at the local training facility. Training included participation in HIFT a minimum of twice a week for 16-weeks. Repeated measures analysis of variance revealed a significant gender x time interaction in Bone Mineral Content (BMC) (p = 0.027), where improvements favored women (1.0% ± 1.1%, p = 0.004) over men (-0.1% + 0.8%, p = 0.625). Further, region-specific analysis indicated that women (2.5% ± 3.0%, p < 0.005) experienced greater improvements in the trunk compared to men (-0.3% ± 1.8%, p = 0.621), while changes in leg BMC were comparable between women (0.8% ± 1.0%, p < 0.001) and men (0.3% ± 0.6%, p < 0.001). Although no other interactions were observed, significant performance improvements were noted for all participants in WOD 1 (18.3% ± 16.8%), absolute 5RM (14.4% ± 9.7%), relative 5RM (15.4% ± 9.2%), WOD 2 (5.7% ± 6.5%), and WOD 3 (-17.3% ± 14.7%). These data indicate that 16-weeks of HIFT resulted in positive outcomes in strength, metabolic conditioning performance, and body composition. |
| format | Article |
| id | doaj-art-9f1d56c592d1468f846715f7df3a85b6 |
| institution | DOAJ |
| issn | 1932-6203 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj-art-9f1d56c592d1468f846715f7df3a85b62025-08-20T03:13:19ZengPublic Library of Science (PLoS)PLoS ONE1932-62032018-01-01136e019832410.1371/journal.pone.0198324Changes in body composition, bone metabolism, strength, and skill-specific performance resulting from 16-weeks of HIFT.Yuri FeitoWade HoffstetterPaul SerafiniGerald MangineHigh Intensity Functional Training (HIFT) is a training modality, characterized by multimodal exercises performed at high-intensity. Little is known about the training adaptations that occur as a prolonged training program. The purpose of this study was to examine changes in body composition, bone metabolism, strength, and skill-specific performance over 16-weeks of HIFT. Twenty-six recreationally active adult males (n = 9; 34.2 ± 9.1 y; 91.5 ± 17.7 kg; 178.5 ± 5.4 cm) and females (n = 17 = 36.4 ± 7.9 y; 91.5 ± 17.7 kg; 162.9 ± 7.0 cm) completed pre and post training assessments of body composition (Dual-Energy X-Ray Absorptiometry) and performance measures. Performance was assessed using three HIFT workouts (WOD 1-3) to assess strength, skill, and metabolic performance. Aside from the body composition measurements, all assessments were carried out at the local training facility. Training included participation in HIFT a minimum of twice a week for 16-weeks. Repeated measures analysis of variance revealed a significant gender x time interaction in Bone Mineral Content (BMC) (p = 0.027), where improvements favored women (1.0% ± 1.1%, p = 0.004) over men (-0.1% + 0.8%, p = 0.625). Further, region-specific analysis indicated that women (2.5% ± 3.0%, p < 0.005) experienced greater improvements in the trunk compared to men (-0.3% ± 1.8%, p = 0.621), while changes in leg BMC were comparable between women (0.8% ± 1.0%, p < 0.001) and men (0.3% ± 0.6%, p < 0.001). Although no other interactions were observed, significant performance improvements were noted for all participants in WOD 1 (18.3% ± 16.8%), absolute 5RM (14.4% ± 9.7%), relative 5RM (15.4% ± 9.2%), WOD 2 (5.7% ± 6.5%), and WOD 3 (-17.3% ± 14.7%). These data indicate that 16-weeks of HIFT resulted in positive outcomes in strength, metabolic conditioning performance, and body composition.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0198324&type=printable |
| spellingShingle | Yuri Feito Wade Hoffstetter Paul Serafini Gerald Mangine Changes in body composition, bone metabolism, strength, and skill-specific performance resulting from 16-weeks of HIFT. PLoS ONE |
| title | Changes in body composition, bone metabolism, strength, and skill-specific performance resulting from 16-weeks of HIFT. |
| title_full | Changes in body composition, bone metabolism, strength, and skill-specific performance resulting from 16-weeks of HIFT. |
| title_fullStr | Changes in body composition, bone metabolism, strength, and skill-specific performance resulting from 16-weeks of HIFT. |
| title_full_unstemmed | Changes in body composition, bone metabolism, strength, and skill-specific performance resulting from 16-weeks of HIFT. |
| title_short | Changes in body composition, bone metabolism, strength, and skill-specific performance resulting from 16-weeks of HIFT. |
| title_sort | changes in body composition bone metabolism strength and skill specific performance resulting from 16 weeks of hift |
| url | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0198324&type=printable |
| work_keys_str_mv | AT yurifeito changesinbodycompositionbonemetabolismstrengthandskillspecificperformanceresultingfrom16weeksofhift AT wadehoffstetter changesinbodycompositionbonemetabolismstrengthandskillspecificperformanceresultingfrom16weeksofhift AT paulserafini changesinbodycompositionbonemetabolismstrengthandskillspecificperformanceresultingfrom16weeksofhift AT geraldmangine changesinbodycompositionbonemetabolismstrengthandskillspecificperformanceresultingfrom16weeksofhift |