Combined resistance and endurance training improves physical capacity and performance on tactical occupational tasks.
The purpose of this study is to evaluate the effectiveness of aerobic endurance (E), strength (R), and combined endurance and strength (CB) training for improving performance of tactical occupational tasks and determine if combined training interferes with performance enhancements of E or R alone. A total of 56 recreationally active women were randomly placed into four groups: R (n = 18), E (n = 13), CB (n = 15), Control (n = 10). Subjects trained three non-consecutive days per week for 8 weeks. Performance was measured pre-, mid-, and post-training for bench press one-repetition maximum (1-RM), squat 1-RM, bench press throw and squat jump peak power, VO2peak, 3.2 km load carriage (LC), 3.2 km run (run), and repetitive lift and carry (RLC). R and E demonstrated improvements which were generally specific to their training. R improved squat (48.3%) and bench press 1-RM (23.8%), bench press throw (41.9%), RLC (31.3%), and LC (11.5%). E improved run (14.7%), VO2peak (6.2%), squat 1-RM (15.3%), LC (12.9%), and RLC (22.5%). CB improved squat (37.6%) and bench press 1-RM (20.9%), bench press throw (39.6%), VO2peak (7.6%), run (10.4%), LC (13.1%), and RLC (45.5%). Post-training 1-RM squat was greater in R and CB than E, while E completed the 3.2 km load carriage task faster than C. In conclusion, 8 weeks of combined training improved performance in all tactical occupational tasks measured and did not interfere with improvements in strength, power and endurance measures compared to R or E alone.
Hendrickson
Nathan R
NR
Military Performance Division, US Army Research Institute of Environmental Medicine, Building 42, Kansas Street, Natick, MA 01760, USA. nathan.hendrickson@us.army.mil
Sharp
Marilyn A
MA
Alemany
Joseph A
JA
Walker
Leila A
LA
Harman
Everett A
EA
Spiering
Barry A
BA
Hatfield
Disa L
DL
Yamamoto
Linda M
LM
Maresh
Carl M
CM
Kraemer
William J
WJ
Nindl
Bradley C
BC
D000293:Adolescent; D000328:Adult; D017079:Exercise Tolerance / Q000502:physiology*; D005260:Female; D006801:Humans; D009790:Occupations; D010807:Physical Endurance / Q000502:physiology*; D010809:Physical Fitness / Q000502:physiology*; D014938:Work Capacity Evaluation; D055815:Young Adult
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