Table 2 Mean and standard deviation in each intensity level.

From: Validity of Hera Leto consumer earbuds for heart rate monitoring during stationary cycling

Type

Stage (N of paired observations)

Polar H10

Polar Verity Sense

Polar Vantage V

Hera Leto

45%VO2max

ON (24)

120 ± 12

119 ± 12

119 ± 12

119 ± 12

 

OFF (23)

103 ± 11

104 ± 11

104 ± 11

103 ± 11

55%VO2max

ON (15)

135 ± 13

134 ± 15

134 ± 14

134 ± 14

 

OFF (18)

111 ± 14

112 ± 14

112 ± 14

111 ± 14

65%VO2max

ON (19)

142 ± 15

141 ± 16

141 ± 16

141 ± 16

 

OFF (22)

112 ± 12

113 ± 13

113 ± 13

112 ± 13

75%VO2max

ON (19)

149 ± 14

149 ± 14

150 ± 12

149 ± 13

 

OFF (19)

113 ± 15

113 ± 16

113 ± 16

112 ± 15

VT2

ON (15)

165 ± 19

155 ± 28

157 ± 25

162 ± 20

 

OFF (19)

124 ± 16

125 ± 17

125 ± 17

124 ± 17

100%VO2max

ON (17)

157 ± 23

127 ± 32

135 ± 28

150 ± 25

 

OFF (21)

125 ± 19

125 ± 19

125 ± 19

125 ± 19

110%VO2max

ON (22)

153 ± 22

118 ± 24

129 ± 23

148 ± 23

 

OFF (25)

123 ± 18

121 ± 16

123 ± 17

122 ± 18

130%VO2max

ON (26)

150 ± 22

109 ± 20

122 ± 25

140 ± 25

 

OFF (25)

121 ± 17

119 ± 15

121 ± 17

120 ± 17

150%VO2 max

ON (20)

146 ± 23

105 ± 15

114 ± 15

133 ± 23

 

OFF (24)

115 ± 21

116 ± 16

119 ± 18

118 ± 19

170%VO2max

ON (19)

148 ± 23

107 ± 12

119 ± 19

132 ± 23

 

OFF (24)

119 ± 17

116 ± 15

118 ± 16

119 ± 17

HIIT10/10

ON (14)

142 ± 15

139 ± 18

138 ± 17

138 ± 19

 

OFF (15)

97 ± 19

98 ± 21

97 ± 20

96 ± 20

HIIT20/10

ON (20)

152 ± 18

145 ± 23

148 ± 21

149 ± 21

 

OFF (19)

103 ± 19

103 ± 20

103 ± 20

102 ± 20

HIIT30/10

ON (19)

153 ± 18

144 ± 27

148 ± 22

149 ± 22

 

OFF (20)

104 ± 20

104 ± 21

104 ± 21

103 ± 21