Table 2 Performance outcomes and training adaptations in short-term (7–10 days) MIPS studies

Kraemer et al. 2007

9 resistance trained males

Double-blind, placebo controlled, cross-over, 7-day supplementation study

L-Arginine (2000 mg)

D-Ribose (1500 mg)

L-Carnitine (400 mg)

L-Citrulline (200 mg)

Betaine (100

mg)

Caffeine (70 mg)

30 min prior to exercise or at a similar time on off days

NA

CMVJ, six sets of BS RTF at 80% 1RM, isometric squat force¹

↑ Power (NA)

↑ RTF for 5 of 6 sets (d = 0.41–1.08)

[49]

Outlaw et al. 2014

20 resistance trained males

Double-blind, placebo controlled, training study

Prop. Blend: (8400 mg)

Creatine

β-alanine

BCAAs (4800 mg)

Caffeine (275 mg)

30 min prior to exercise or during the morning hours on off days

8 days of supplementation with four split body training sessions

DEXA, VJ, BP & LP 1RM, WAnT¹

↔ Power

↔ Body Composition

↔ BP 1RM

↔ LP 1RM

[48]

Collins et al. 2017

25 resistance trained males and females

Double-blind, placebo controlled, 7-day supplementation study

β-alanine (2100 mg)

Arginine nitrate (1300 mg)

Folic acid (325 mcg)

Caffeine (200 mg)

Niacin (65 mg)

Vitamin B12 (45 mcg)

Unreported time point during supplementation phase

NA

BP and LP 1RM,

2 × 10 BP and LP at 70% 1RM,

BP and LP RTF at 70% 1RM, 4 km cycle TT¹

↔ Retention of force production

↔ Muscular endurance

↔ Lifting volume

↔ Power

[23]

Martin et al. 2017

30 resistance trained males

Double-blind, placebo controlled, supplementation study

Creatine (2000 mg)

Β-alanine (1600 mg)

L-Citrulline (1000 mg)

Caffeine (300 mg)

L-Norvaline (200 mg)

L-Theanine (100 mg)

Whole coffee fruit extract (100 mg)

Theacrine (50 mg)

Unreported time point during supplementation phase

NA

Leg extension RTF at 30% or 80% 1RM¹

↔ RTF

↔ Volume load

[50]